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4 years ago

Plssss help I will die:(

Mathematics

1 answer:

labwork [276]4 years ago

6 0

Answer:

Step-by-step explanation:

Midpoint means the middle, so all you have to do is divide 42 by 2 :)

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Ryan throws a baseball upward with an initial velocity of 12 m/s from a height of 2m above the ground. How long will it take for

Sonja [21]

Answer:

It will take 2.6 s for the ball to hit the ground.

Step-by-step explanation:

This is a standard physics problem

The equation that defines the movement of Ryans baseball is given by the initial velocity, and the acceleration

Distance = Do + Vo*t + 0.5*a*t^2

Where

Do is the initial distance.

(Do = 2m over the ground)

Vo is the initial velocity = 12m/s

a is the acceleration that is exerted on the body (in this case a = g = -9.8 m/s^2 )

t is the time

We substitute in the equation, and solve for t (time)

(0)= 2+ (12)*t + 0.5*(-9.8)*t^2

We get that

t = 2.606 s = 2.6 s

7 0

3 years ago

A store sells a package of 25 trading cars for $5.25. What is the cost of one trading card?

34kurt

Answer: 0.21$

Step-by-step explanation: You would do 5.25 divided by 25 to get 21 cents.

3 0

4 years ago

What is the answer to <br>Y+2=2/3(x-4)

djverab [1.8K]

Answer:

Y=2/3x-14/3

Step-by-step explanation:

If you subtract the 2 from the y+2 and from the simplified version of 2/3(4), you get the answer above! I hope this helps!

4 0

3 years ago

Polygon WXYZ is dilated by a scale factor of 3 with vertex W as the center of dilation, resulting in polygon W’X’Y’Z’. The coord

Lostsunrise [7]

Dilating polygon WXYZ will change the side lengths of the polygon

The true statement is <em>(b) the slope of WX is 3/4, and the length of W'X' is 15</em>

The coordinates are given as:

$\mathbf{W = (3,2)}$

$\mathbf{X = (7,5)}$

The slope of WX is:

$\mathbf{m =\frac{y_2 - y_1}{x_2 -x_1}}$

So, we have:

$\mathbf{m =\frac{5-2}{7-3}}$

$\mathbf{m =\frac{3}{4}}$

The length of WX is calculated using:

$\mathbf{WX = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}$

So, we have:

$\mathbf{WX = \sqrt{(7- 3)^2 + (5- 2)^2}}$

$\mathbf{WX = \sqrt{25}}$

$\mathbf{WX = 5}$

The scale factor is 3.

So, the distance W'X' is:

$\mathbf{W'X' = 3 \times WX}$

This gives

$\mathbf{W'X' = 3 \times 5}$

$\mathbf{W'X' = 15}$

Hence, the true statement is (b)