I know there is too many questions but please help me answer them I will give you 20 points thank you so much for all the people who is going to help me

The Midpoint of a segment divides the segment into two segments of equal length.

Answer:

Midpoint

Step-by-step explanation:

The midpoint is the point on the segment halfway between the two endpoints. In some cases the midpoint of a segment can be found simply by counting.

For example in a straight line between (2,0) and (6,0) the midpoint would be located on the point (4,0).

[tex]4-(6(3x+2)-x)+4=-(18x+12-x)+8=-(17x+12)+8=-17x-12+8=-17x-4[/tex]

Answer:

C

Step-by-step explanation:

Given the inequality

(x - 3)(x + 5) ≤ 0

Find the zeros by equating to zero

(x - 3)(x + 5) = 0

Equate each factor to zero and solve for x

x - 3 = 0 ⇒ x = 3

x + 5 = 0 ⇒ x = - 5

Thus the domain is split into 3 intervals

--------------------------------------------------------------

- ∞ < x ≤ - 5 → (1)

- 5 ≤ x ≤ 3 → (2)

3 ≤ x < + ∞ → (3)

Select a test point in each interval and check validity

x = - 10 → (- 13)(- 5) = 65 > 0 ← not valid

x = 0 → (- 3)(5) = - 15 < 0 ← valid

x = 10 → (7)(15) = 105 > 0 ← not valid

Solution is { x | - 5 ≤ x ≤ 3 }

Answer:

4. (a) = 12 m

   (b) = 27 cm

   (c) = 24 mm

   (d) = 18 km

   (e) = 10 m

   (f) = 36 cm

Step-by-step explanation:

Perimeter is sum the distance round a figure.

if a shape has those, they signify that the shape has two side that are equal

a)  4 + 4 + 2 + 2 = 12. The top part is equal to the bottom part signified by those two lines. And the left is equal to the right .

b)  10 + 10 + 7 = 27

c) 5 + 5 + 8 + 6 = 24

d)  3 + 3 + 6 + 6 = 18

e) 2.5 + 2.5 + 2.5 + 2.5 = 10

f) 12 + 7 + 7 + 5 + 5 = 36

If you need any clarification or more explanation pls do mention in the comment section. i would like to help more.

Hope this helps and if it does pls mark as branliest answer thx.

Answer:

34a + 12

Step-by-step explanation:

12a + 6a + 8 + 10a - 4 + 6a + 8

combine like terms

12a + 6a + 10a + 6a

and 8 + 8 - 4

34a + 12

Answer:

The game’s expected value of points earned for a turn is 71.

Step-by-step explanation:

Here we know that:

Points     Frequency

50           55

75            32

150          13

Here points earned is a random variable.

We need to find its expected value,

Finding Expected value:

Expected value of a random variable is its mean value. So we will first find the mean value of points earned per turn from the table we are given.

Total number of turns = sum of frequencies

= 55 + 32 + 14 = 100

Total points earned = 50(55) + 75(32) + 150(13)

= 7100

Expected value of points earned for a turn = Mean value of points

= Total points/no. of turns

= 7100/100

= 71

Answer:

The quotient is [tex]\frac{7}{12c}[/tex]

Step-by-step explanation:

Given expression is:  [tex]\frac{5}{4c^2}\div \frac{15}{7c}[/tex]

While dividing two fractions, first we need to change the division sign into multiplication and then flip the second fraction.

So, we will get.....

[tex]\frac{5}{4c^2}\div \frac{15}{7c}\\ \\ =\frac{5}{4c^2}\times \frac{7c}{15}\\ \\ =\frac{35c}{60c^2}\\ \\ = \frac{7}{12c} \ \ [Dividing\ both\ numerator\ and\ denominator\ by\ 5c][/tex]

So, the quotient is [tex]\frac{7}{12c}[/tex]

Answer:

the answer is B

Step-by-step explanation:

just did the assignment on edge

Answer:

[tex]\large\boxed{b=0}[/tex]

Step-by-step explanation:

[tex]4b+6=2-b+4\qquad\text{combine like terms}\\\\4b+6=(2+4)-b\qquad\text{add}\ b\ \text{to both sides}\\\\5b+6=6\qquad\text{subtract 6 from both sides}\\\\5b=0\qquad\text{divide both sides by 5}\\\\b=0[/tex]

Hello!

Answer:

[tex]\boxed{b=0}\checkmark[/tex]

The answer should have a positive sign.

Step-by-step explanation:

First, switch sides and group like terms.

4b+6=-b+2+4

Then, add numbers from left/right.

2+4=6

4b+6=-b+6

Subtract by 6 both sides of an equation.

4b+6-6=-b+6-6

Simplify.

4b=-b

Next add b both sides of an equation.

4b+b=-b+b

Simplify.

5b=0

Therefore, you divide by 5 from both sides of an equation.

5b/5=0/5

Finally, you simplify and solve to find that answer is.

0/5=0

b=0 is the correct answer.

Hope this helps!

Have a nice day! :)

-Charlie

Thank you so much!

Answer:

20

Step-by-step explanation:

Givens

Let child one = x

Let child two = y

Let child three = z

Equations

x^2 + y^2 + z^2 = 100

xy + xz + yz = 150

Solution

There's a trick here. The square of their weights added together is equal (with some modification) to the given conditions. Start by squaring (x+y+z).

(x + y + z)^2 = x^2 + y^2 + z^2 + 2xy + 2xz + 2yz

Take out 2 as a common factor from the last three terms.

(x + y + z)^2 = (x^2 + y^2 + z^2+ 2(xy + xz + yz) )

Substitute the given conditions into the equation. (x^2 + y^2 + z^2) = 100 and 2*(xy + xz + yz) = 2 * 150

(x + y + z)^2 = 100 + 2*150

(x + y + z)^2 = 100 + 300

(x + y + z)^2 = 400

Take the square root of both sides.

sqrt(x+y+z)^2 = sqrt(400)

x + y + z = 20

Note

This answer tells you nothing about the values of x y and z. On the other hand it does not ask for the values of x y and z.

Answer:

[tex]SA=144\pi\ ft^2[/tex]

Step-by-step explanation:

We know that the diameter of the sphere is 12 feet.

By definition the radius of the sphere is:

[tex]r =\frac{d}{2}[/tex]

Where d is the diameter of the sphere

Then

[tex]r =\frac{12}{2}[/tex]

[tex]r =6\ ft[/tex]

Now we calculate the surface area of the sphere using the formula

[tex]SA=4\pi r^2[/tex]

[tex]SA=4\pi (6)^2[/tex]

[tex]SA=4\pi(36)[/tex]

[tex]SA=144\pi\ ft^2[/tex]

Answer:

y=5 is horizontal

(-4,5) is on the line

Step-by-step explanation:

y= a number is always a horizontal line

x= b number is always a vertical line

So y=5 is horizontal and it includes every single ordered pair with a y-coordinate of 5. So it contain the ordered pair (-4,5).

So there are two statements.

The correct statements are :

The graph of y = 5 is a vertical line.

The point (-4, 5) lies on the line.

An equation is a mathematical statement which equate two algebraic expressions. An equation has an equal to (=) sign in between the expression.

So the line passes through ( -4,5)

So options A and D are correct.

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Answer:

The new function is g(x) = Ix - 5I - 7 ⇒ answer C

Step-by-step explanation:

* Lets revise the translation of a function

- If the function f(x) translated horizontally to the right  

 by h units, then the new function g(x) = f(x - h)

- If the function f(x) translated horizontally to the left  

 by h units, then the new function g(x) = f(x + h)

- If the function f(x) translated vertically up  

 by k units, then the new function g(x) = f(x) + k

- If the function f(x) translated vertically down  

 by k units, then the new function g(x) = f(x) – k

* Now lets solve the problem

∵ f(x) = IxI

∵ f(x) is shifted 5 units to the right

∵ If the function f(x) shifted to the right  by h units

∴ g(x) = f(x - h)

- Change IxI to Ix - 5I ⇒ (1)

∵ f(x) is shifted 7 uints down

∵ If the function f(x) shifted down  by k units

∴ g(x) = f(x) - k

- Change f(x) to f(x) - 7 ⇒ (2)

- From (1) and (2) the new function is:

 g(x) = Ix - 5I - 7

* The new function is g(x) = Ix - 5I - 7

Answer:

7/4

Step-by-step explanation:

The slope of the line going through (2,3) and (-2,-4) can be found by:

A) Lining up points

B)  Subtracting the numbers vertically

C) Answer: Putting 2nd difference over 1st difference (yes a fraction)

 Let's do it!

 (  2  ,  3)

-( -2  ,  -4)

--------------

4       7

So the slope is 7/4

For this case we have that by definition, the slope of a line is given by:

[tex]m = \frac {y2-y1} {x2-x1}[/tex]

We have as data the following points:

[tex](x1, y1) = (2,3)\\(x2, y2) = (- 2, -4)[/tex]

Substituting in the formula we have:

[tex]m = \frac {-4-3} {- 2-2}[/tex]

Equal signs are added and the same sign is placed:

[tex]m = \frac {-7} {- 4}\\m = \frac {7} {4}[/tex]

Answer:

[tex]m = \frac {7} {4}[/tex]

Answer:

Denise has $17

Step-by-step explanation:

T = Theo, D = Denise, and R = Rudy

T + D + R= 45

(D+ 5) +( D)+ (D - 11) = 45

3D -6 = 45

3D = 51

D = 17

Answer: "The true mean height of the giraffes is less than or equal to 15 feet".

Step-by-step explanation:

A hypothesis in a statement that is made about a statistical parameter of a population.

A null hypothesis [tex]H_0[/tex] is usually the hypothesis that is tried to reject by an alternate hypothesis [tex]H_a[/tex]

In this case  [tex]H_a[/tex] is:

"The true mean height of the giraffes is more than 15 feet".

Therefore, for this case, the null hypothesis must be:

 "The true mean height of the giraffes is less than or equal to 15 feet".

Answer:

x = 90° or π/2 rad

Step-by-step explanation:

4+ 2 sin x=14-8 sin x

2 sin x + 8 sin x  = 14 - 4

10 sin x = 10

sin x = 1

Using a calculator

x = sin[tex]sin^{-1}[/tex]1

x = 90° or π/2 rad

x = 90° or π/2 rad

If you are in high school, take Algebra one or two, Trigonometry, Analytic Geometry, or Precalculus. If you're in college take College Algebra, Trig, or then Calculus.

4+ 2 sin x=14-8 sin x

2 sin x + 8 sin x  = 14 - 4

10 sin x = 10

sin x = 1

Using a calculator

x = sin1

x = 90° or π/2 rad

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Answer:

128 degrees, so C is again the answer.

Step-by-step explanation:

Since angles 3 and 11 are corresponding(from your previous question), angles 1 and 11 will add up to 180 degrees, since a line is that long. Therefore your answer is 180-(degrees of angle 1)= 180-52= 128

m∠11 = 128°.

A line that cuts three parallel lines forms congruent angles which means they measure the same.

In this problem m∠1 = 52° = m∠4 = m∠5 = m∠8 = m∠9 = m∠12, and  m∠2 = m∠3 = m∠6 = m∠7 = m∠10 = m∠11.

To calculate m∠11, we know that m∠12 = m∠1 = 52°, the sum of the angle of m∠11 and m∠12 is 180°. Then:

m∠11 + m∠12 = 180°, with m∠1 = 52° = m∠12

m∠11 + 52° = 180°

m∠11 = 180° - 52°

m∠11 = 128°

The sum of the real numbers x and y is 25 and their difference is 13. To find the value of xy, we need to solve a system of equations. The value of xy is 114.

To solve this problem, we need to set up a system of equations based on the given information. Let's denote x and y as the two real numbers. The sum of x and y is 25, so we can write the equation x + y = 25. The difference between x and y is 13, so the equation becomes x - y = 13. To find the value of xy, we need to solve this system of equations.

First, let's add the two equations together. (x + y) + (x - y) = 25 + 13. This simplifies to 2x = 38. Dividing both sides by 2, we find x = 19.

Now, we can substitute the value of x into one of the original equations (x + y = 25) to solve for y. 19 + y = 25. Subtracting 19 from both sides, we get y = 6.

Therefore, the value of xy is 19 * 6 = 114.

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Answer:

2pi

Step-by-step explanation:

period for sin is 2pi/b

its only x theres 1 before x so its 1x=b

2pi/1

= 2pi

The period of  function f ( x ) = sin ( x ) is 2π.

The sine function ( sin ( x ) ) is a periodic function, which means it repeats its values in regular intervals. The period of sin(x) is the length of one complete cycle of the function before it starts repeating itself.

The period of the function f ( x ) = sin( x ) is 2π.

In the case of sin ( x ), it completes one full cycle ( from 0 to 2π ) every 2π units. Therefore, the period of f ( x ) = sin ( x ) is 2π.

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Answer:

C. 140

Step-by-step explanation:

We want m^2 to be the largest value it can be, so ignoring the sign of m the largest value of |m| is 12

(-12)^2 = 144 which is the largest value of m^2

We want n^2 to be the smallest it can be, so ignoring the sign of n the smallest value of |n| is 2

(2)^2 =4

m^2 -n^2

144-4 = 140

Answer:

[tex]x^2-10x+25[/tex]

Step-by-step explanation:

We have been given an expression [tex]x^2-10x+[/tex]. We are asked to convert our given expression into perfect-square trinomial.

We know that an equation in form [tex]x^2+bx+c[/tex] is a perfect square, if [tex]c=(\frac{b}{2})^2[/tex]

To convert our given expression into perfect-square trinomial, we need to add [tex](\frac{10}{2})^2[/tex] to our given expression.

[tex](\frac{10}{2})^2=5^2=25[/tex]

Therefore, our perfect square trianominal would be [tex]x^2-10x+25[/tex].

Answer:

Congruent Angles

Reasoning:

An angle bisector bisects/splits an angle into two equal/congruent parts/angles.

Answer with explanation:

→ The Meaning of Angle bisector is that line or line segment which divide an Angle in two equal Parts.

→So, If a Line or line segment  that is  Angle bisector is bisecting an Angle , it will divide the angle into two equal Angles.

For example: Suppose an Angle has Measure of 60°, the Angle bisector will divide it into two congruent Angles each being equal to 30°.

⇒The presence of an angle bisector will result in Congruent type of angles

the asnwer is most likey 12x^4-32x^3+24x^2

Answer:

Last option:  [tex]8x^4-32x^3+24x^2[/tex]

Step-by-step explanation:

Given the expression [tex]4x^2(2x^2-8x + 6)[/tex], you need to remember the Product of powers property, which states the following:

 [tex](a^m)(a^n)=a^{(m+n)}[/tex]

Knowing this, you can apply the Distributive property. Therefore, you get:

[tex](4x^2)(2x^2)-(8x)(4x^2) +(6)(4x^2)=8x^{(2+2)}-32x^{(1+2)}+24x^2=8x^4-32x^3+24x^2[/tex]

You can observe that this matches with the las option.

Answer:

[tex]\large\boxed{y+7=-3(x-5)}[/tex]

Step-by-step explanation:

[tex]\text{The point-slope form of an equation of a line:}\\\\y-y_1=m(x-x_1)\\\\m-slope\\(x_1,\ y_2)-point\\\\\text{We have}\ m=-3\ \text{and}\ (5,\ -7).\\\text{Substitute:}\\\\y-(-7)=-3(x-5)\\y+7=-3(x-5)[/tex]

Answer:

The surface area of the figure is [tex]SA=458\ ft^{2}[/tex]

Step-by-step explanation:

we know that

The surface area of the figure is equal to

[tex]SA=2B+PH[/tex]

where

B is the area of the L-shaped cross section

P is the perimeter of L-shaped cross section

H is the width of the figure

Find the area of the L-shaped cross section

[tex]B=12*7+5*5=109\ ft^{2}[/tex]

Find the perimeter P of L-shaped cross section

[tex]P=(12+7+7+5+5+12)=48\ ft[/tex]

[tex]H=5\ ft[/tex]

substitute

[tex]SA=2(109)+(48)(5)=458\ ft^{2}[/tex]

Answer:

Surface area = 458 square ft

Step-by-step explanation:

From the figure attached with this answer we can see figure.

To find the surface area of the figure

Surface area is sum of area of  small rectangles

Surface area = 2(12 * 7 ) + 4(5 * 5) + 2(12 * 5) + 2(7 * 5)

= 2*84  + 4*25 + 2 *60 + 2*35

 = 168 + 100 + 120 + 70

 = 458

Therefore surface area of given figure = 458 square ft

Answer:

1/2

or

0.5

Step-by-step explanation:

you need to get the line in the form of y = mx + b

2x - 4y = 10                  Subtract 3x from both sides

-4y = - 2x + 10              3x on the left disappears. Divide by - 4

-4y/-4 =-2x/-4 +10/-4    Do the division

y = (2/4)x - 2.5

y = (1/2)x - 2.5

The slope is the number in front of the x

y = 0.5x - 2.5

Answer:

It's B.

Step-by-step explanation:

First  is x + 23 and second is  2x - 18.

So the product is

(x + 23)(2x - 18)

= 2x^2 - 18x + 46x - 414

=  2x^2 + 28x - 414