What is the measure of X in degrees

What Is The Measure Of X In Degrees

Answers

Answer 1

Answer:

C. 40°

Step-by-step explanation:

From the diagram, in triangle XYZ, XY=XZ=6 units. This means triangle XYZ is isosceles triangle with base YZ.

In isoscels triangle angles adjacent to the base are congruent, so

∠ZYX=∠YZX=70°

The sum of all interior angles in triangle is always 180°, so

∠ZYX+∠YZX+∠ZXY=180°

∠ZXY=180°-70°-70°

∠ZXY=40°

∠ZXY is ∠X, so ∠X=40°


Related Questions

3. Which description matches the graph of the inequality?

a shaded region above a solid boundary line

a shaded region below a solid boundary line

a shaded region above a dashed boundary line

a shaded region below a dashed boundary line

Answers

Answer: D is correct dotted and shaded below

Step-by-step explanation:

It’s a dotted line because the symbol is < or >

Everything below the line will be shaded because it’s y<, if it were y> then everything would be shaded above

Answer:

A shaded region below a dashed boundary line

Step-by-step explanation:

Conveniently it has been established, that in inequalities graph dashed lines indicate that all the points ∈ line expressed by y< -1/2x+5 part of the inequality are not included. So we represent by shaded regions below dashed lines.

If this inequality was then expressed by y<= -1/2x +5 then a solid line would then represent.

Check it out below

Which classification best represents a triangle with side lengths 10 in., 12 in., and 15 in.?

Answers

Answer:

It's an acute angled triangle.

Step-by-step explanation:

15^2 = 225

12^2 = 144

10^2 = 100

Adding:

10^2 + 12^2 = 244.

So as 15^2 <  12^2 + 10^2 this is an acute angled triangle.

The triangle with given sides of 10 inch , 12 inch and 15 inch is an acute angled triangle.

The length of three sides of a triangle are given

Length of first  side = 10 inch

Length of second side = 12 inch

Length of third side = 15 inch

here we can observe that the third side is the longest side for the given triangle

Let us check whether the given triangle satisfies the Pythagorean theorem

For a right angled Pythagorean theorem is given by equation (1)

[tex]\rm H^2 = P^2 + B^2 .........(1)\\where \\H = Hypotenuse\\P = Perpendicular\\B = Base\\[/tex]

From the given data we can conclude that

[tex]\rm 15 ^2 = 225 \\10^2 = 100\\12^2 = 144 \\15^2 \neq 10^2 +12^2 \\\\Since\; 225\neq 244[/tex]

The given triangle does not satisfies the Pythagorean theorem and hence it is not a right angled triangle

also [tex]225< 244[/tex]

So we can conclude that it is an acute angled triangle.

For more information please refer to the link given below

https://brainly.com/question/21291710

What is the measure of the angle formed by Main Street and Park Street?


35°


45°


90°


55°


Answers

Answer:

90-35=55

Hope this helps! <3

Find the area of the polygon.


Look at the picture please

A : 24.6 square units

B : 25.8 square units

C: 26.3 square units

D: 27.5 square units

Answers

Answer:

option D: 27.5 square units

Step-by-step explanation:

Divide the polygon in 6 figures

see the attached figure

Area of figure 1 (right triangle)

A1=(1/2)(3)(3)=4.5 units²

Area of figure 2 (rectangle)

A2=(1)(3)=3 units²

Area of figure 3 (rectangle)

A3=(1)(3)=3 units²

Area of figure 4 (right triangle)

A4=(1/2)(3)(3)=4.5 units²

Area of figure 5 (right triangle)

A5=(1/2)(4)(5)=10 units²

Area of figure 6 (right triangle)

A6=(1/2)(1)(5)=2.5 units²

The total area is equal to

At=A1+A2+A3+A4+A5+A6

At=4.5+3+3+4.5+10+2.5=27.5 units²

Answer:

Option D.

Step-by-step explanation:

As we know area of a triangle = [tex]\frac{1}{2}\times Base\times Height[/tex]

1. Area of ΔJKL = [tex]\frac{1}{2}\times(\text{Distance of L from base JK})\times (JK)[/tex]

= [tex]\frac{1}{2}\times (3)\times (5)[/tex]

=7.5 square units

2. Area of ΔIJL = [tex]\frac{1}{2}\times(\text{Distance of J from base IL})\times (IL)[/tex]

=  [tex]\frac{1}{2}\times (3)\times (5)[/tex]

= 7.5 square units

3. Area of triangle IKL = [tex]\frac{1}{2}\times(\text{Distance of H from base IL})\times (IL)[/tex]

= [tex]\frac{1}{2}\times (5)\times (5)[/tex]

= [tex]\frac{25}{2}=12.5[/tex] square units

Now area of ΔJKL + ΔIJL + ΔIKL = 7.5 + 7.5 + 12.5

= 27.5 square units

Option D. is the answer.

What is the surface area of a rectangular prism with sides 5cm 3cm and 2cm

Answers

Answer:

A=62cm

Step-by-step explanation:

Length : 5 cm

Width: 3 cm

Height: 2 cm

Please mark brainliest and have a great day!

Answer:

62 cm^2

Step-by-step explanation:

Each two lengths given forms a rectangle. There are two rectangles of each size. Find their areas and add them up.

2(5 cm * 3 cm) + 2(5 cm * 2 cm) + 2(3 cm * 2 cm) =

= 2(15 cm^2) + 2(10 cm^2 + 2(6 cm^2)

= 2(15 cm^2 + 10 cm^2 + 6 cm^2)

= 2(31 cm^2)

= 62 cm^2

What is the answer to this question

Answers

[tex]|\Omega|=9[/tex]

b)

[tex]|A|=2\\\\P(A)=\dfrac{2}{9}\approx22\%[/tex]

c)

[tex]|A|=3\\\\P(A)=\dfrac{3}{9}=\dfrac{1}{3}\approx33\%[/tex]

a) The possibility space is completed with the potential outcomes of spinning both spinner A and spinner B.

b) The probability of getting a negative score is 2/9.

c) The probability of scoring more than 3 is also 2/9.

a) **Possibility Space:**

```

                            Spinner A

                             2         4         6

Spinner B    3       1          -1        -3

                       6       4          0         -2

                       9       7          3          1

```

In the possibility space, each cell represents the outcome of spinning both spinner A and spinner B. The score is obtained by subtracting the number on spinner A from the number on spinner B.

b) **Probability of Getting a Negative Score:**

To calculate the probability of getting a negative score, count the number of occurrences where the result is negative and divide it by the total number of possible outcomes. In this case, there are two instances (-1 and -2) where the score is negative. The total number of outcomes is 9.

Probability of negative score = Number of negative outcomes / Total number of outcomes

Probability of negative score = 2 / 9

c) **Probability of Scoring More Than 3:**

To find the probability of scoring more than 3, count the number of occurrences where the result is greater than 3 and divide it by the total number of possible outcomes. In this case, there are two instances (4 and 7) where the score is more than 3.

Probability of scoring more than 3 = Number of outcomes > 3 / Total number of outcomes

Probability of scoring more than 3 = 2 / 9

Which of the following is the solution set of the given equation? 14 + 8m = 14 - 3m - 5m ∅ {0} {all reals}

Answers

Answer:

{0}

Step-by-step explanation:

14 + 8m = 14 - 3m - 5m

Combine like terms

14 + 8m = 14 - 8m

Add 8m to each side

14 +8m +8m = 14 -8m +8m

14 +16m = 14

Subtract 14 from each side

14-14 +16m = 14-14

16m = 0

Divide by 16

16m/16 = 0/16

m = 0

Answer:

{0}

Step-by-step explanation:

The given equation is

[tex]14+8m=14-3m-5m[/tex]

We need to find the solution set of given equation.

Combine like terms on the right side of the given equation.

[tex]14+8m=14+(-3m-5m)[/tex]

[tex]14+8m=14+(-8m)[/tex]

[tex]14+8m=14-8m[/tex]

Add 8m on both sides.

[tex]14+8m+8m=14-8m+8m[/tex]

[tex]14+16m=14[/tex]

Subtract 14 from both sides.

[tex]14+16m-14=14-14[/tex]

[tex]16m=0[/tex]

Divide both sides by 16.

[tex]m=\frac{0}{16}[/tex]

[tex]m=0[/tex]

Therefore, the solution set is {0}.

Choose the correct simplification of (4x3 + 3x2 − 6x) − (10x3 + 3x2). Select one: a. 6x3 + 6x b. −6x3 − 6x2 − 6x c. −6x3 − 6x d. 6x3 + 6x2 + 6x

Answers

Answer:

The correct answer is option C.  -6x³ - 6x

Step-by-step explanation:

It is given an expression,

(4x³ + 3x² - 6x) - ( 10x³ + 3x²)

To find the simplified form

(4x³ + 3x² - 6x) - ( 10x³ + 3x²) = 4x³ + 3x² - 6x - 10x³ - 3x²

 = 4x³ - 10x³ + 3x² - 3x² - 6x

 = -6x³ + 0 - 6x

 = -6x³ - 6x

Therefore the correct answer is option C.  -6x³ - 6x

Answer:  −6x3 − 6x

Step-by-step explanation:

If the unit selling price is $2.50 and the unit cost is
$1.00, what action is needed to maintain the gross
margin percentage when unit cost increases $0.25?
Lower the selling price.
Increase the selling price more than $0.25.
Maintain the same selling price.
Increase the selling price $0.25.

Answers

Answer:

D.

Increase by more than 0.25 dollars.

Step-by-step explanation:

What is the gross margin %?

Margin % = (2.50/1.00) * 100 = 250%

If the cost goes up 0.25 what will the  selling price have to do to maintain a markup of 250%?

250% =(x/1.25) * 100%

Divide by 100%

250 / 100 = x / 1.25

2.5 = x / 1.25  

Multiply both sides by 1.25

2.5 * 1.25 = x

3.125 = x

But that is really not the question. The question is, how much higher is that now than it used to be?

3.125 - 2.50 = 0.625 cents.

So you would have to increase the selling price by more than 0.25

Classify the triangle.
obtuse
equiangular
right
acute

Answers

Answer:

Acute

Step-by-step explanation:

Note the definitions:

Obtuse: At least one of the angles are greater than 90°

Equilateral: All angles are congruent & equal to 60°

Acute: All angles are less than 90°

Right: At least one angle is equal to 90°

In this case, the triangle is a D) acute, for it fits the requirement for being an acute... all angles are less than 90°.

~

Hello There!

The triangle shown in the image would be an acute triangle

An acute triangle is a triangle where all three sides are less than 90°

In the image, none of the angles shown are greater than 90° so this

is an example of an acute triangle

Question worth 10 points

Use the following statements to write a compound statement for the conjunction or disjunction. Then find its truth value.
p: An isosceles triangle has two congruent sides.
q: A right angle measures 90°.
r: Four points are always coplanar.
s: A decagon has 12 sides.

r ∧ (q ∨ s)

Select one:
A. Four points are always coplanar, or a right angle measures 90° and a decagon has 12 sides; false.

B. Four points are always coplanar, and a right angle measures 90° or a decagon has 12 sides; true.

C. Four points are always coplanar, or a right angle measures 90° and a decagon has 12 sides; true.

D. Four points are always coplanar, and a right angle measures 90° or a decagon has 12 sides; false.

Answers

Answer:

Options b and D

Step-by-step explanation:

It's a question of Boolean's algebra

We will find the truth values of each statement p, q, r, and s first.

p : An isosceles triangle has two congruent sides.

Means truth value is True

q ; A right angle measures 90°

Truth value of this statement will be True

r : Four Points are always coplanar.

Truth value of this statement will be False.

s : A decagon has 12 sides

Truth value of the statement will be False.

Now we come to the options.

a. Four points are always coplanar and a right angle measures 90°.

Here "and" means conjunction and truth value of conjuncion of two statements will be true if only both the statements are true.

r        q         r ∧ q

T        T            T

But the truth value is given as false so not the correct option.

b. Four points are always coplanar and a right angle measures 90°.

As we have discussed in option a. truth value of the conjunction is True so this option will be the correct option.

c. Four points are always coplanar or a right angle measures 90°

OR means it's a disjunction and truth value of disjunction is false only when both the statements are False.

r         q        r ∨ q

T        T           T

But the truth value is given as False, so this option is not correct.

d. Four points are always coplanar or a right angle measure 90°

As discussed in option c. Truth value will be True. so this option will be the correct option.

Options b and d are the correct options.  

If (-4,32) and (7,-45) are two anchor points on the trend line, then find the equation of the line.

Answers

To find slope use the equation. Y2-Y1/X2-X1

-45-32/7- (-4)=. -77/11 divide by 11

The slope is -7

Using the slope to find Y-Intercept:

You can use any points but since you’re given two use the easiest one to solve such as (-4,32)

Y=-7x
32=-7(-4)
32=28 subtract 28 from both sides
-28=4
Equation is y=-7x+4

the equation of the trend line is y = -7x + 4.

To find the equation of the trend line using two points, we need to determine the slope (m) and the y-intercept (b) of the line. The slope is calculated using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are the given points.

For the points (-4, 32) and (7, -45), the slope would be:

m = (-45 - 32) / (7 - (-4))

m = (-77) / (11)

m = -7

Now, we use the slope and one point to find the y-intercept using the point-slope form of the equation of a line, y - y1 = m(x - x1), and then we convert it to the slope-intercept form, y = mx + b.

Using point (-4, 32), the equation becomes:

32 = -7(-4) + b

32 = 28 + b

b = 32 - 28

b = 4

So, the equation of the trend line is y = -7x + 4.

The Starbuck cinnamon chip scone has 480 calories-more calories than a 440 calorie McDonald's double cheeseburger. a. One cinnamon chip scone provides what percent of the daily recommended calorie intake of 2000 calories for an adult woman?

Answers

Answer:

46%

Step-by-step explanation:

440 + 480 = 920

2000 / 920 =46%

Answer:

One cinnamon chip scone provides 46% of the daily recommended calorie intake of 2000 calories for an adult woman.

Step-by-step explanation:

Consider the provided information.

The Starbucks cinnamon chip scone has 480 calories-more calories than a 440 calorie McDonald's double cheeseburger.

First calculate the calories in Starbucks cinnamon chip scone .

Starbucks cinnamon has 480 calories-more than a 440 calorie cheeseburger.

The calories in Starbucks cinnamon = 480+440 = 920

Now we need to find the One cinnamon chip scone provides what percent of the daily recommended calorie intake of 2000 calories for an adult woman.

Find what percentage of 2000 is 920 as shown.

[tex]\frac{920}{2000}\times 100[/tex]

[tex]\frac{920}{20}[/tex]

[tex]46\%[/tex]

Hence, One cinnamon chip scone provides 46% of the daily recommended calorie intake of 2000 calories for an adult woman.

What is the value of (3/10)^3

Answers

Answer:

27/1000

Step-by-step explanation:

To solve this, you would distribute the power 3 to the numerator and denomerator. 3^3 is 27 and 10^3 is 1000. So you get 27/1000

Answer:

the value is 27/1000 in other words the answer to your question is B

Help pleazzzzzzzzzzzz

Answers

Find the ratio of the known sides 10 and 12

12/10 = 1.2

The larger kite is 1.2 times the size of the smaller kite.

Multiply 7 by 1.2:

x - 7 * 1.2

x = 8.4

What value of x will make the equation below true?
+(6x - 10) + 10 = 5x – 13

Answers

The answer to this problem is x=-13

Answer:

6x - 10 + 10 = 5x - 13

6x = 5x -13

x = -13

What is the point slope form of a line with slope 2 that contains the point (1,3)

Answers

Answer:

Option A y-3=2(x-1)

Step-by-step explanation:

we know that

The equation of a line into point slope form is equal to

y-y1=m(x-x1)

In this problem we have

(x1,y1)=(1,3)

m=2

substitute

y-3=2(x-1)

Just answer please y= ?

Answers

Answer:

y = 7√2

Step-by-step explanation:

It's the right isosceles triangle.

Right triangle with angles 45°, 45°, 90°. The sides are in ratio 1 : 1 : √2

(look at the picture).

Therefore

x = 7

y = 7√2

What is the value of r in the equation? -1.5(4-r)=-12

Answers

Answer:

12

Step-by-step explanation:

We are given the following equation and we are to solve for the variable r and find its value:

[tex] - 1 . 5 ( 4 - r ) = - 1 2 [/tex]

Expanding the brackets to get:

[tex]6-1.5r=-12[/tex]

[tex]-1.5r=-12-6[/tex]

[tex] - 1 . 5 r = - 1 8 [/tex]

[tex] r = \frac { - 1 8 } { - 1 . 5 } [/tex]

r = 12

Answer:

-4

Step-by-step explanation:

-1.5 (4 - r) = -12

(4 - r) = [tex]\frac{-12}{-1.5}[/tex]

-r =  [tex]\frac{12}{1.5}[/tex] - 4

r = 4 -  [tex]\frac{12}{1.5}[/tex] = -4

x + 4y − z = −14
5x + 6y + 3z = 4
−2x + 7y + 2z = −17

Answers

A = -120

AX = -240

X = 2

Step-by-step explanation:

∵ x + 4y - z = -14

∵ 5x + 6y + 3z = 4

∵ -2x + 7y + 2z = -17

\left[\begin{array}{ccc}1&4&-1\\5&6&3\\-2&7&2\end{array}\right]=\left[\begin{array}{ccc}-14\\4\\-17\end{array}\right]

∴ A = 1(6×2 - 3×7) + (-4)(2×5 - 3×-2) + (-1)(5×7 - 6×-2)

∴ A = 1(12 - 21) + (-4)(10 - -6) + (-1)(35 - -12)

∴ A = -9 + (-4)(16) + (-1)(47) = -9 - 64 - 47 = -120

To find X replace the column of X by the column of the answer

\left[\begin{array}{ccc}-14&4&-1\\4&6&3\\-17&7&2\end{array}\right]

∴ AX = -14(6×2 - 3×7) + (-4)(4×2 - 3×-17) + (-1)(4×7 - 6×-17)

∴ AX = -14(12 - 21) + (-4)(8 - -51) + (-1)(28 - -102)

∴ AX = 126 + (-4)(59) + (-1)(130) = 126 - 236 - 130 = -240

∴ X = AX/A = -240/-120 = 2  

Answer:

A     -120

Ax   -240

Ay    360

Az    -480

x    2

y    -3

z    4

Step-by-step explanation:

A solid right pyramid has a square base. The length of the base edge is4 cm and the height of the pyramid is 3 cm period what is the volume of the pyramid?

Answers

Answer:

The volume of this pyramid is 16 cm³.

Step-by-step explanation:

The volume [tex]V[/tex] of a solid pyramid can be given as:

[tex]\displaystyle V = \frac{1}{3} \cdot b \cdot h[/tex],

where

[tex]b[/tex] is the area of the base of the pyramid, and[tex]h[/tex] is the height of the pyramid.

Here's how to solve this problem with calculus without using the previous formula.

Imaging cutting the square-base pyramid in half, horizontally. Each horizontal cross-section will be a square. The lengths of these squares' sides range from 0 cm to 3 cm. This length will be also be proportional to the vertical distance from the vertice of the pyramid.

Refer to the sketch attached. Let the vertical distance from the vertice be [tex]x[/tex] cm.

At the vertice of this pyramid, [tex]x = 0[/tex] and the length of a side of the square is also [tex]0[/tex].At the base of this pyramid, [tex]x = 3[/tex] and the length of a side of the square is [tex]4[/tex] cm.

As a result, the length of a side of the square will be

[tex]\displaystyle \frac{x}{3}\times 4 = \frac{4}{3}x[/tex].

The area of the square will be

[tex]\displaystyle \left(\frac{4}{3}x\right)^{2} = \frac{16}{9}x^{2}[/tex].

Integrate the area of the horizontal cross-section with respect to [tex]x[/tex]

from the top of the pyramid, where [tex]x = 0[/tex],to the base, where [tex]x = 3[/tex].

[tex]\displaystyle \begin{aligned}\int_{0}^{3}{\frac{16}{9}x^{2}\cdot dx} &= \frac{16}{9}\int_{0}^{3}{x^{2}\cdot dx}\\ &= \frac{16}{9}\cdot \left(\frac{1}{3}\int_{0}^{3}{3x^{2}\cdot dx}\right) & \text{Set up the integrand for power rule}\\ &= \left.\frac{16}{9}\times \frac{1}{3}\cdot x^{3}\right|^{3}_{0}\\ &= \frac{16}{27}\times 3^{3} \\ &= 16\end{aligned}[/tex].

In other words, the volume of this pyramid is 16 cubic centimeters.

Answer:

16cm3

Step-by-step explanation:

Equivalent expression to -n+(-3)+3n+5

Answers

Answer:

[tex]\boxed{2n+2}[/tex]

Step-by-step explanation:

You remove parenthesis.

-n-3+3n+5

Group like terms

 ↓

-n+3n-3+5

Add numbers from left to right.

-n+3n=2n

2n-3+5

Adding and subtracting numbers from left to right.

-3+5=2

2n+2 is the correct answer.

Answer:

2n+2

Step-by-step explanation:

-n+(-3)+3n+5

Combine like terms

-n +3n -3+5

2n +2

if g(x) = x^2 - 4 find g (5) A. 6 B. 14 C. 21 D. 29​

Answers

C.21

5^2-4=21


Explanation

Answer:

C. 21

Step-by-step explanation:

g(x) = x² - 4

Give: x = 5

Plug in 5 for x in the equation:

g(5) = 5² - 4

Simplify. Remember to follow PEMDAS. First, solve the exponent, then subtract:

g(5) = (5 * 5) - 4

g(5) = 25 - 4

g(5) = 21

C. 21 is your answer.

~

In two or more complete sentences, compare the number of x-intercepts in the graph of f(x) =x2 to the number of X-
intercepts in the graph of g(x) = x2 +2. Be sure to include the transformations that occurred between the parent functio
f(x) and its image g(x).

Answers

Answer:

The function f(x) intercepts the x-axis at (0,0), thus it touches the x-axis once.The graph of the function g(x) does not intercept the x-axis at all.

Step-by-step explanation:

In this question you first form the table for values of x with corresponding values of f(x) that you will use to graph the function f(x)=x².Then do the same for the function g(x)=x²+2.Take a point from the parent function f(x) and compare it with its image in the function g(x) to identify the transformation that occurred.Graph the two equations to visually see the x-intercepts in both equations.

In the parent function f(x)=x² form a table as shown below;

x                      f(x)=x²          coordinate to plot

-3                     -3²=9                (-3,9)

-2                      -2²=4                (-2,4)

-1                        -1²=1                 (-1,1)

0                         0²=0               (0,0)

1                           1²=1                 (1,1)

2                          2²=4               (2,4)

3                           3²=9               (3,9)

Use the coordinates to plot the graph of f(x)=x² on a graph tool and see the number of x-intercept values

In the function g(x)=x²+2 also form your table for values of g(x) with corresponding values of x

x                              g(x)=x²+2                                          coordinate to plot

-3                          -3²+2=9+2=11                                          (-3,11)

-2                          -2²+2=4+2=6                                          (-2,6)

-1                           -1²+2=1+2=3                                             (-1,3)

0                            0²+2=2                                                    (0,2)

1                             1²+2=1+2=3                                              (1,3)

2                            2²+2=4+2=6                                             (2,6)

3                            3²+2=9+2=11                                             (3,11)

Use the coordinates to plot the graph of g(x)=x²+2  on a graph tool to determine the number of x intercept values

You can determine the transformation that occurred too, how?

Take a point on the parent function f(x) and compare it with its image in the function g(x)

Let take point (-3,9) and compare it to (-3,11).You notice x coordinate did not change but the y coordinate shifted 2 units upwards along the y-axis.To determine this dilation you subtract the coordinates of object point from that of image point.

[tex]=(\frac{0-0}{11-9}) =(\frac{0}{2} )=(0,2)[/tex]

The dilation was (0,2)

Solution

From the graphs, the function f(x), intercepts the x-axis at (0,0), thus it touches the x-axis once.The graph of the function g(x) does not intercept the x-axis at all.

Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution.
u =

x

4(x +1)
x +1

(x + 1)2
Select the solution(s) of the original equation.

x = 1 + sqrt 2

x = 2 + sqrt 2

x = 3 + sqrt 2
x = 1 - sqrt 2

x = 2 - sqrt 2

x = 3 - sqrt 2

Answers

For this case we have to:

Let[tex]u = x + 1[/tex]

So:

[tex]u ^ 2-4u + 2 = 0[/tex]

We have the solution will be given by:

[tex]u = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}[/tex]

Where:

[tex]a = 1\\b = -4\\c = 2[/tex]

Substituting:

[tex]u = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (2)}} {2 (1)}\\u = \frac {4 \pm \sqrt {16-8}} {2}\\u = \frac {4 \pm \sqrt {8}} {2}\\u = \frac {4 \pm \sqrt {2 ^ 2 * 2}} {2}\\u = \frac {4 \pm2 \sqrt {2}} {2}[/tex]

The solutions are:

[tex]u_ {1} = \frac {4 + 2 \sqrt {2}} {2} = 2 + \sqrt {2}\\u_ {2} = \frac {4-2 \sqrt {2}} {2} = 2- \sqrt {2}[/tex]

Returning the change:

[tex]2+ \sqrt {2} = x_ {1} +1\\x_ {1} = 1 + \sqrt {2}\\2- \sqrt {2} = x_ {2} +1\\x_ {2} = 1- \sqrt {2}[/tex]

Answer:

[tex]x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}[/tex]

Answer: 1st - x = 1 + √2 & 4th- x= 1 - √2

Step-by-step explanation:

You have 4 3/7 grams of a substance and want to divide it into vials of 6 1/4 grams each. Estimate how many vials you can fill.

Answers

Answer:

[tex]\frac{124}{175}[/tex] vials

Step-by-step explanation:

You have [tex]4\frac{3}{7}[/tex] = [tex]\frac{31}{7}[/tex] grams of a substance.

You want to divide it into vials of [tex]6\frac{1}{4}[/tex] = [tex]\frac{25}{4}[/tex] grams each.

Number of vials you can fill is:  [tex]\frac{31}{7}[/tex] ÷ [tex]\frac{25}{4}[/tex] = [tex]\frac{31}{7}[/tex] × [tex]\frac{4}{25}[/tex] = [tex]\frac{124}{175}[/tex] vials

I want to say it’s 18in.. but I just wanna make sure

Answers

Answer:

you are correct

Step-by-step explanation:

area = 6 × 3 = 18 in²

Answer:

Yes!You got it correct!

Step-by-step explanation:

Good job!

Teo spins the spinner 120 times. He expects to land on one particular color 30 times. What color is it?



Answers

Answer:

Red

Step-by-step explanation:

P = 30/120 = 1/4

The spinner is divided into 8 equal sections.  1/4 of 8 is 2.  So we're looking for a color that appears on exactly 2 of the sections.

The color is red.

What is the constant of proportionality in the equation y = 2 x?​

Answers

Answer:

2

Step-by-step explanation:

2 is the constant of proportionality in the equation y = 2x . When two variables are directly proportional to each others . Where k is called the constant of proportionality . Thus in the question x and y are proportional variables

Find the relative rate of change of [tex]f(x)=3+e^x(x-5)^3[/tex]

Answers

bearing in mind that the rate of change will just be the slope or namely the derivative of the expression.

[tex]\bf f(x)=3+e^x(x-5)^3\implies \cfrac{df}{dx}=0+\stackrel{\textit{product rule}}{e^x(x-5)^3+\stackrel{\textit{chain rule}}{e^x\cdot 3(x-5)^2\cdot 1}} \\\\\\ \cfrac{df}{dx}=e^x(x-5)^3+3e^x(x-5)^2\implies \cfrac{df}{dx}=\stackrel{\textit{common factor}}{e^x(x-5)^2[(x-5)+3]} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \cfrac{df}{dx}=e^x(x-5)^2(x-2)~\hfill[/tex]

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