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belka [17]
1 year ago
12

PLEASE HELP ME PLS ITS MATH

Mathematics
1 answer:
Ganezh [65]1 year ago
7 0

Answer:

9

Step-by-step explanation:

We know that

h(t)=-16t^2+1296

The balls hits the ground when h(t)=0, so

-16t^2 + 1296=0 \\ \\ t^2 - 81=0 \\ \\ t^2 = 81 \\ \\ t=9

Note I only considered the positive case because time must be positive.

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How do you work out how many 1/3 cup servings are in 6 cups of pecans
allochka39001 [22]

Answer:

18 servings

Step-by-step explanation:

Because 6 divided by 1/3 is the same as 6*3, we can just do it that way so it makes more sense.

6*3= 18

And there you have your answer!

6 0
3 years ago
Read 2 more answers
11. Charles's Law states that at constant pressure, the volume of a fixed amount of gas varies
Zanzabum

Answer:

a.V=5/6T

b. 350 ml

Step-by-step explanation:

a.

V∝T

or V=kT

where k is a constant.

V=250 ml

T=300° K

250=300 k

k=250/300=5/6

so V=5/6 T

b.

V=5/6 T

=5/6×420

=5×70

=350 ml

6 0
2 years ago
Hey yall what is 2⋅2⋅2⋅n⋅n?
Svetach [21]

Answer:

8n^2 8n squared

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Solve x2 + 8x + 22 = 0 by completing the square.
Liula [17]

Answer:

A)

Step-by-step explanation:

the solution of a squared equation is

x = (-b ± sqrt(b² - 4ac)) / (2a)

in our case

a = 1

b = 8

c = 22

x = (-8 ± sqrt(64 - 88))/2 = (-8 ± sqrt(-24))/2 =

= (-8 ± sqrt(4×-6))/2 = (-8 ± 2×sqrt(-6))/2 =

= -4 ± sqrt(-6) = -4 ± i×sqrt(6)

6 0
2 years ago
How do I do this? It is a regular hexagon with a height of 30. We have to find the perimeter of it.
Sliva [168]

Answer:

The radius of a hexagon is called the apothem, which in this case is 15.

We need to know the side length which is found by the equation:

side length = apothem * 2 * (tan (180 / #sides))

side length = apothem * 2 * (tan (180 / 6))

side length = 15 * 2 * (tan (30 degrees))

side length = 30 * .57735

side length = 17.3205

We need the perimeter of the hexagon which equals the side length times six.

perimeter = 6 * 17.3205 = 103.923

Source: https://www.1728.org/polygon.htm

Step-by-step explanation:

8 0
3 years ago
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