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podryga [215]
3 years ago
13

I NEED HELP ! I’m doing a math quiz right now and I’m confused

Mathematics
1 answer:
Goshia [24]3 years ago
8 0

Step-by-step explanation:

one of his student shoot a ball from his hand at an initial height of 2 m with an initial upward velocity of 10 meters per second , the height of the ball can be modeled by the ģuadratic eģuation wath answer the ģuation -4.9t2+10t+2 after t seconds

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Estimate the product. 3 1/3 X 4 1/8​
asambeis [7]

Answer:

55/4=13.75

Step-by-step explanation:

3+1/3=10/3

4+1/8=33/8

(10/3)(33/8)

(33x10)/(3x24)

330/24

55/4

Hope that helps :)

4 0
2 years ago
the pie factory sells an apple pie with a diameter of 16 in. for $10.99. What's the approximate cost per square inch of surface
AURORKA [14]
I'm going to assume the crust covered by the dosenot matter because the total surface area cannot be found without the depth of the pie.

So the surface are is the area of the top of the pie, the top of the pie is circular and is equal to 2\pir²

The diameter is the sum of 2 radii, hence r=8

D=12
  = 2r =12
r=8

With the raduis the area can be found
A= 2\pir²
A=2\pi8² 
A=2(64)\pi
A=128\pi

If the pie cost 10.99, the cost per inch can be found by dividing the area by cost

cost/inch =128 \pi/10.99
cost/inch =11.64\pi
               = 11.64(3.14)
               = 36.57

The pie costs 36 cents per square inch
5 0
3 years ago
The ratio of volume of a cone and a hemisphere of same base radius and height is?
aliya0001 [1]

Answer:

1/2

Step-by-step explanation:

Since it is given that the cone and the hemisphere have the same height, and since the height of a hemisphere would be equal to its radius, the cones height must also be equal to its base radius.

With this information we can use the respective volume formulas.

Hemisphere:  \frac{2}{3}πr^3

Cone:  \frac{1}{3}πhr^2

Since h (height) = r we can say the cone volume equals:

\frac{1}{3}πr^3

Now to find the ratio we divide the cone volume equation by the hemisphere volume equation

pi and r^3 cancels out from the division and we are left with

ratio = (1/3)/(2/3)

ratio = 1/2

7 0
3 years ago
The architects side view drawing of a saltbox-style house shows a post that supports the roof ridge. The support post is 10 ft t
pochemuha
These calculations are based on the drawing of the file enclosed.

There are three right triangles.

From the big right triangle:

a^2 + b^2 = 25^2

From the small right triangle on the left side:


(25-x)^2 + 10^2 = a^2

From the small right triangle on the right side

x^2 +10^2 = b^2

=> (25-x)^2 + 10^2 + x^2 + 10^2 = a^2 + b^2

=> (25-x)^2 + 10^2 + x^2 + 10^2 = 25^2

=> 25^2 - 50x + x^2 + 10^2 + 10^2 = 25^2

=> x^2 -50x + 100 =0

Use the quadratic formular to find the roots:

x = 2.1 and x = 47.9

Distance from back: 25 - 2.1 = 22.9 ft

Answer: 22.9 ft
8 0
3 years ago
Read 2 more answers
Melody used the table at the right to find the number of people served with 15 pounds of ground turkey. Find her error and corre
Stolb23 [73]

If Melody used the table and still made a mistake, you can
imagine how badly we'll do if we can't even SEE the table.

7 0
3 years ago
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