3|2x-5|>21
BRAINLIEST solve for x

Answer:

2/15

Step-by-step explanation:

There is a 4/10 probability that she chooses blue the first time, but the second time it is a 3/9 chance because she didn't put the marble back so there are 9 marbles in total, 3 blue ones.

4/10 x 3/9 = 2/5 x 1/3 = 2/15

I hope this helps :)

Edit: Messed up the multiplication, whoops!

[tex]|\Omega|=10\cdot9=90\\|A|=4\cdot3=12\\\\P(A)=\dfrac{12}{90}=\dfrac{2}{15}[/tex]

Answer:

The sixth term is -243/2048 ⇒ answer B

Step-by-step explanation:

* Lets explain the geometric sequence

- There is a constant ratio between each two consecutive numbers

- Ex:

# 5  ,  10  ,  20  ,  40  ,  80  ,  ………………………. (×2)

# 5000  ,  1000  ,  200  ,  40  ,  …………………………(÷5)  

* General term (nth term) of a Geometric sequence:

# U1 = a  ,  U2  = ar  ,  U3  = ar²  ,  U4 = ar³  ,  U5 = ar^4

# Un = ar^(n-1), where a is the first term , r is the constant ratio

  between each two consecutive terms  and n is the position of the

  number in the sequence

- Ex: U5 = ar^4  ,  U7 = ar^6  ,  U10 = ar^9  ,  U12 = ar^11

- Lets solve the problem

∵ The sequence is 1/2 , -3/8 , 9/32

- Lets find the constant ratio r

∵ The first term is a = 1/2

∵ The second term is U2 = ar

∵ The second term  U2 = -3/8

∴ ar = -3/8

∴ 1/2 r = -3/8 ⇒ multiply both sides by 2

∴ r = -3/4

- Lets find the sixth term

∵ a = 1/2 and r = -3/4

∵ n = 6

∴ U6 = ar^5

∴ U6 = 1/2 (-3/4)^5 = 1/2 × -243/1024 = -243/2048

* The sixth term is -243/2048

Answer:

B edge

Step-by-step explanation:

Answer:

  No

Step-by-step explanation:

Not all relations have either an infinite domain or an infinite range. Some have no "end behavior". A sine function, for example, continues to oscillate between -1 and +1 forever.

The graphs of some relations are simply a collection of points, so the "end behavior" would be the points at either extreme of the domain.

Answer:

$295.01

Step-by-step explanation:

Using the compounding continuously formula, we are looking for A.  We have that P = 190; r = .11 (always use the decimal form of the rate!); and t = 4.  Filling in we have:

[tex]A=190e^{(.11)(4)}[/tex]

Simplifying that multiplication:

[tex]A=190e^{.44}[/tex].

On your calculator, raise e to the .44 power to get

A = 190(1.552707219) and

A = $295.01

The investment should be worth in 4 years is $295.01.

Given that,

Based on the above information, the calculation is as follows:

[tex]A = 190e^{0.11 \times 4}\\\\= 190e^{-44}\\\\= 190\times 1.55\\\\[/tex]

= $295.01

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Answer:

Step-by-step explanation:

Any side to side movement of a function will be reflected inside a set of parenthesis with the x.  For example, if the function was a parabola, the parent graph could be, very simply,

[tex]y=x^2[/tex]

Side to side movement would make the equation look like this:

[tex]y=(x-h)^2[/tex]

where h is the x coordinate of the vertex.

Up or down movment would make the equation look like this:

[tex]y=x^2+k[/tex] for movement upwards, or

[tex]y=x^2-k[/tex] for movement downwards.  The k represents the y coordiante of the vertex in this parabola.

Because our function has NO numbers inside the parenthesis with the f(x), but it has a -1 after, we are moving the parent graph of this function, whatever it is, down one from its starting position.

The transformation from the graph of a function f(x) describes the graph of f(x) - 1 is a vertical shift down by 1 unit

From the question, we have the following parameters that can be used in our computation:

The function f(x)

Also, we have

The function f(x) - 1

Subtracting a value from a function means that the function is shifted down

In this case, the subtracted value is 1

This means that f(x) - 1 is a vertical shift down by 1 unit from f(x)

Answer:

[tex]2x^{3}-4x^{2}+24x-15[/tex]

Step-by-step explanation:

we have

[tex](2x^{3}+9x-8)-(4x^{2}-15x+7)[/tex]

step 1

Eliminate the parenthesis

[tex]2x^{3}+9x-8-4x^{2}+15x-7[/tex]

step 2

group terms that contain the same variable

[tex]2x^{3}-4x^{2}+(9x+15x)+(-8-7)[/tex]

step 3

Combine like terms

[tex]2x^{3}-4x^{2}+24x-15[/tex]

The smallest angle occurs opposite the shortest side length of the triangle. So by the law of cosines we have

[tex]11^2=13^3+19^2-2\cdot13\cdot19\cos\angle J\implies\cos\angle J=\dfrac{409}{494}\implies\theta\approx\boxed{34^\circ}[/tex]

Answer:

The measure of angle J is 34°

Step-by-step explanation:

Given,

J is the smallest angle in the triangle with sides measuring 11, 13, and 19,

Thus, J must be the opposite angle of the side measuring 11,

Since, the law of cosines,

[tex]a^2 = b^2 + c^2 - 2bc cos A[/tex]

Where, a, b and c are the sides of a triangle ABC,

Such that angle A is opposite to the side measuring a,

By applying the law,

We can write,

[tex]11^2 = 13^2 + 19^2 - 2\times 13\times 19 cos J[/tex]

[tex]121 = 169 + 361 - 494 cos J[/tex]

[tex]\implies cos J = \frac{169+361-121}{494}=\frac{409}{494}[/tex]

[tex]\implies m\angle J=34.1127839945\approx 34^{\circ}[/tex]

Second option is correct.

Answer:

A) 10

Step-by-step explanation:

The value of 8 in 2781 is in the tens place value.

The value of 8 in 948 is in the ones place value.

Note that the tens place value is x10 greater than the ones place value.

A)10 is your answer, for:

8 x 10 = 80

~

Answer:

A) 10

Step-by-step explanation:

The value of the 8, in 2781, is 10 times the value of the 8, in 948.

Answer:

  f(-2) = 3

Step-by-step explanation:

The graph goes through the point (-2, 3), indicating the value of f(x) is 3 when x=-2.

Answer:

Multiply the number of notebooks by the weight of one notebook.

When multiplying a whole number by a fraction, multiply the whole number by the top number of the fraction, and then divide that by the bottom number of the fraction.

56 x 5 = 280

280 / 8 = 35

The 56 notebooks weigh 35 pounds.

Answer:

False

Step-by-step explanation:

False, because 3 can not be an even number; it's an odd number.  So the condition cannot be satisfied.

Answer:

  20

Step-by-step explanation:

The ratio of rise to run is 5:2, so if the run is 8, the rise is correspondingly 4 times as much:

  rise : run = 5 : 2 = 20 : 8

A similar right triangle would be created by a run of 8 and a rise of 20.

Answer:

20

Step-by-step explanation:

The special at Big Bob's Pizza which will give you more pizza for your money is Choice #1. Per square inch, Choice #1 will cost less and give more overall pizza at $0.10 a square inch then Choice #2 at $0.13 per square inch. You can find more pizza for your money, by using the area formula for a circle for each pizza and finding the price per square inch of each serving. This is called a unit rate and is the cost per unit.

a. Find the radius of each pizza.

Since a pizza is a circle shape, it has a diameter and radius. The diameter is the distance across the pizza and the radius is half the diameter. We use the radius to find the area.

b. Find the area of each pizza using [tex]A = \pi r^{2}[/tex].

       [tex]A = \pi r^{2} \\A = \pi (11)^{2} \\A = 121\pi \\A= 379.94[/tex]

       The area of one slice is [tex]\frac{379.94}{8} = 47.49.[/tex]

       [tex]A = \pi r^{2} \\A = \pi (3)^{2} \\A = 9\pi \\A= 28.26[/tex]

c. Divide each area by the price.

        [tex]\frac{4.95}{47.49} = 0.10[/tex]

       [tex]\frac{3.75}{28.26} = 0.13[/tex]

Grade: 8th Grade

Subject: Geometry

Chapter: Applications for Area of Shapes

Keywords: circle, area, radius, diameter, cost, unit rate

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Answer:

(B) -8,4

Step-by-step explanation:

Answer:

(-8,4)

Step-by-step explanation:

Given in the picture is a right triangle and a square sharing one commonside

Area of triangle = area of square

ie [tex]1/2 bs = s^2[/tex] (is s is one side of square)

i.e. b = 2s where b = EA

In other words A divides line EB in the ratio 2:1

Using section formula

Coordinates of A=

[tex](\frac{2(-7)+1(-10)}{3} ,\frac{2(2)+1(-8)}{3})\\=(-8, 4)[/tex]

Answer:

Step-by-step explanation:

e

Answer: B- 72

Step-by-step explanation:

Answer:

2x

Step-by-step explanation:

Solve the equation for a as follows:

First multiply both sides by 2a:

[tex](2a)x=-b[/tex] and then divide both sides by 2x:

[tex]a=-\frac{b}{2x}[/tex]

The denominator will be equal to 2x.

A coordinate plane is a 2D plane which is formed by the intersection of two perpendicular lines known as the x-axis and y-axis.

Given that:-

The value of the denominator will be:-

x    =   -b/2a

From the given information the expression will be written as

a  =  -b / 2x

Therefore the denominator will be equal to 2x.

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Answer:

  a + b - c - d

Step-by-step explanation:

The rules of exponents are ...

  (x^a)(x^b) = x^(a+b)

  (x^a)/(x^b) = x^(a-b)

Using these rules on your expression, we can simplify it to ...

  (3^a) · (3^b) ÷ (3^c) ÷ (3^d)

  = 3^(a+b) ÷ (3^c) ÷ (3^d)

  = 3^(a+b-c) ÷ (3^d)

  = 3^(a+b-c-d)

_____

The Order of Operations requires multiplication and division be evaluated left-to-right in order of appearance. The ÷ symbol means the same thing as the / symbol in this context: whatever is on its immediate left is divided by whatever is on its immediate right.

Answer:

  After you swap the top two descriptions on the right, everything matches  straight across.

Step-by-step explanation:

1. The circle described is the incircle, circumscribed by the polygon.

2. When the tangent line separates the centers of the circles to which it is tangent, it is called an internal tangent.

3. An external tangent will be parallel to or will intersect the line joining circle centers at a point not between any of those centers.

4. A tangent to a circle is coplanar with the circle and intersects it in exactly one point.

The answer is:

The area of the rhombus is equal to 64 squared inches.

[tex]area=64in^{2}[/tex]

Since we already know half of the length of the diagonals of the rhombus, we can calculate the area of the rhombus using the following formula:

[tex]area=\frac{diagonal_{1}*diagonal_{2}}{2}[/tex]

From the image we can see that:

[tex]diagonal_{1}=8in+8in=16in[/tex]

[tex]diagonal_{2}=4in+4in=8in[/tex]

So, substituting, we have:

[tex]area=\frac{16in*8in}{2}=\frac{128in^{2} }{2}=64in^{2}[/tex]

Hence, we have that the area of the rhombus is equal to 64 square inches.

Have a nice day!

Answer: SECOND OPTION.

Step-by-step explanation:

You can calculate the area of the rhombus with this formula:

[tex]A=\frac{d_1*d_2}{2}[/tex]

Where [tex]d_1[/tex] and [tex]d_2[/tex] are the lengths of the diagonals.

You can observe in the figure that the length of each diagonal is:

[tex]d_1=4in+4in=8in\\d_2=8in+8in=16in[/tex]

Now you can substitute the lenghts of the diagonals into the formula. Therefore, the area of this rhombus is:

 [tex]A=\frac{(8in)(16in)}{2}[/tex]

 [tex]A=\frac{128}{2}[/tex]

 [tex]A=64in^2[/tex]

Answer:

168

Step-by-step explanation:

132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168

Answer:

A

Step-by-step explanation:

The answer is:

The length of the longer side of the rectangle is equal to 45 units.

To solve the problem, we need to use the formula to calculate the perimeter of a rectangle, then, isolate the variable and finally, calculate the length of the longer side.

We can calculate the perimeter of a rectangle using the following equation:

[tex]Perimeter=2Length+2Width\\[/tex]

Let be the length the longer side and the width the short side of the rectangle.

Then, substituting the given information and calculating we have:

[tex]146=2*(3x+3)+2*2x\\146=6x+6+4x\\146-6=10x\\140=10x\\\\x=\frac{140}{10}=14[/tex]

Now, calculating the long side of the rectangle, we have:

[tex]LongSide=3*14+3=45units[/tex]

Hence, we have that the length of the longer side of the rectangle is equal to 45 units.

Have a nice day!

23.

If we take the triangle on the right and put it on the left we have a rectangle, 15 by 11, so area 165.

Answer: 165

24.

Perimeter: 11 + 14 + 11 + 14 = 50

Area: 9 by 14 = 126

Answer:

The equation is: y = 5x - 268

Explanation:

We are given that:

At 73°F, the chirp is 97 times per minute .........> first point is (73, 97)

At 80°F, the chirp is 132 times per minute .......> second point is (80, 132)

The general equation of the linear line is:

y = mx + c

where m is the slope and c is the y-intercept

1- getting the slope:

The slope can be calculated using the following rule:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Substitute with the given points to get the slope as follows:

[tex]m = \frac{132 - 97}{80 - 73} = 5[/tex]

The equation, now, became:

y = 5x + c

2- getting the y-intercept:

To get the y-intercept, use any of the given points and substitute in the rule we got in part 1. I will use the point (80, 132)

Therefore:

y = 5x + c

132 = 5(80) + c

c = 132 - 5(80) = -268

The equation, therefore, is:

y = 5x - 268

Hope this helps :)

[tex]n,n+1[/tex] - two consecutive integers

[tex]n+n+1=-7\\2n=-8\\n=-4\\n+1=-3[/tex]

-4 and -3

Answer:

a. $51,458

Step-by-step explanation:

Answer:

the correct answer is option A

Step-by-step explanation:

given,

Health insurance payment = $1,825

Life insurance per year = $ 93

paid off per year =   $2,860

monthly gross pay is = $3,890

Miguel's  get paid yearly =health insurance + life insurance + paid time off

                                        = 1825 + 93 + 2860

                                        = $ 4778

his monthly gross pay = $ 3,890

his yearly  gross pay =  $ 3,890 ×12

                                   = $ 46,680

hence total job benefit =  $ 46,680 + $ 4778

                                      = $51,458

so , the correct answer is option A

The first attachment is one way that quadrilaterals can be classified. If you've never studied a diagram like this before, it would certainly be mysterious.

There is a little more to it in that a "kite" is not the only kind of quadrilateral with no parallel sides.

Your diagram apparently doesn't recognize the special sorts of trapezoids you might have other than isosceles.

___

The classifications on the first diagram are numbered. The numbers on the second diagram are the way I'd match up the descriptions to the bubbles in your diagram.

Answer:

7/32

Step-by-step explanation:

0.21875 can be expressed as the fraction 7/32.

To express the decimal number 0.21875 as a fraction, we can follow these steps:

Step 1: Write the decimal number as a fraction with the same value as the original decimal number.

In this case, 0.21875 can be written as 21875/100000.

Step 2: Simplify the fraction if possible by finding the greatest common divisor (GCD) of the numerator and denominator.

The GCD of 21875 and 100000 is 625.

By dividing both the numerator and denominator by 625, we get:

21875/100000

= (21875 ÷ 625) / (100000 ÷ 625)

= 35/160.

Step 3: Further simplify the fraction if possible.

In this case, we can divide both the numerator and denominator by 5 to simplify the fraction:

35/160 = (35 ÷ 5) / (160 ÷ 5) = 7/32.

Therefore, 0.21875 can be expressed as the fraction 7/32.

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Answer:

  A)  -12

Step-by-step explanation:

The point of intersection on the graph is (-6, -6). That is the solution to the system of equations. The sum of the solution values is ...

  (-6) +(-6) = -12

Answer:

A

Step-by-step explanation:

The solution to the system of equations is at the point of intersection of the 2 lines, that is

(- 6, - 6) ⇒ A = B = - 6, thus

A + B = - 6 + (- 6) = - 6 - 6 = - 12 → A

Answer:

Los Angeles

Step-by-step explanation:

Los Angeles has the least variability in temperatures.

To determine which location has the least variability in temperatures, we need to calculate the range or variance of the temperatures for both Miami and Los Angeles.

For Miami:

Temperatures: 76 75 83 73606676 81 83 85 83 87 8080 74

To calculate the range, we subtract the minimum temperature from the maximum temperature:

Range = Maximum temperature - Minimum temperature

Range = 87 - 73

Range = 14

For Los Angeles:

Temperatures: 63 62 65 72 67 | 65 | 6565 69 64 64 61 3639 62

Again, to calculate the range, we subtract the minimum temperature from the maximum temperature:

Range = Maximum temperature - Minimum temperature

Range = 72 - 61

Range = 11

Comparing the ranges, we see that Miami has a range of 14, while Los Angeles has a range of 11. Therefore, Los Angeles has the least variability in temperatures.

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