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lord [1]
4 years ago
11

Mid-Chapter Check

Mathematics
1 answer:
Nostrana [21]4 years ago
4 0
An equation: 2x=3
an expression: 2x+5
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A dog jumps straight up in the air to catch a ball and lands on the ground 1.3 s later. Let h(t) represent the dog’s height, in
slamgirl [31]

The given question have mistake. The correct question is written below.

Question:

A dog jumps straight up in the air to catch a ball and lands on the ground 6.37 s later. Let h(t) represent the dog’s height, in meters, t seconds after he leaves the ground. Which equation models the dog’s height for a given time t?

Answer:

Option B:

h(t)=-4.9 t^{2}+6.37t

Solution:

<u>General formula for the height of the projectile over time:</u>

(1) h(t)=-16 t^{2}+v t+s

Where h = height in feet, t = time, v = initial velocity and s = initial height (feet)

(2) h(t)=-4.9 t^{2}+v t+s

Where h = height in meters, t = time, v = initial velocity and s = initial height(meter)

Given initial velocity = 6.37 s and initial height is 0.

The height of the dog is in meters.

So, use second formula and substitute v = 6.37 and s = 0.

h(t)=-4.9 t^{2}+v t+s

h(t)=-4.9 t^{2}+6.37t+0

h(t)=-4.9 t^{2}+6.37t

Hence option B is the correct answer.

6 0
3 years ago
Daisy bought a package of hamburger meat that weighs 2 pounds. She made 3 hamburgers that had the same amount of hamburger meat.
vovangra [49]
The answer would be A hope this helped 
3 0
3 years ago
Help only #12. Thankss
Brrunno [24]
The 12" square pan one, because of unit price!

so basically:

3.95/12=0.34
14.95/24= 0.63

so the 0.34 is less per inch that the 0.63

6 0
4 years ago
Please look at the attached image. Really need Help!! Who ever find answer first will get brainily.
klio [65]
Angle Y is a right angle, so it’s 90 degrees. Angle W is 2x, since it’s opposite angles on a single line intersecting parallel lines. Triangles have 180 degrees, so adding up all sides creates the equation to solve:

X+Y+W=180
(3x-5)+90+2x=180
5x+85=180
5x=95
x=19
6 0
4 years ago
Read 2 more answers
Which is the best approximate solution of the system of linear equations y= 1.5x - 1 and y = 1
yan [13]

Answer:

4/3

Step-by-step explanation:

We can immediately eliminate y by setting y = 1 equal to y = 1.5x - 1:

1 = 1.5x - 1, or 1.5x = 2, or x = 2/1.5 = 4/3


6 0
4 years ago
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