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Over [174]
3 years ago
13

Write two subtraction equations to show how to find 15 - 7

Mathematics
1 answer:
alex41 [277]3 years ago
3 0
These are the two equation

10-2
13-5
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Write 68,127,000,000,000,000 in scientific notation. (x10^​
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Answer:

6.8127 × 10^16

Step-by-step explanation:

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What is 1/4 as a multiplication sentence
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1/4 is the same as 1 * 0.25
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Please help me! I need this to complete my math hw
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Answer:

  1

Step-by-step explanation:

You "complete the square" by adding the square of half the x-term coefficient. Here, that is ...

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If you want to keep 0 on the right, you must also subtract this value:

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Which expression is equivalent to -9x^-1y^-9/-15x^5y^-3? Assume x is not equal to 0,y is not equal to 0
VladimirAG [237]
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The water level in a tank can be modeled by the function h(t)=8cos(pi t /7)+11.5, where t is the number of
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Answer:

NO amount of hour passed between two consecutive times when the water in the tank is at its maximum height

Step-by-step explanation:

Given the water tank level modelled by the function h(t)=8cos(pi t /7)+11.5. At maximum height, the velocity of the water tank is zero

Velocity is the change in distance with respect to time.

V = {d(h(t)}/dt = -8π/7sin(πt/7)

At maximum height, -8π/7sin(πt/7) = 0

-Sin(πt/7) = 0

sin(πt/7) = 0

Taking the arcsin of both sides

arcsin(sin(πt/7)) = arcsin0

πt/7 = 0

t = 0

This shows that NO hour passed between two consecutive times when the water in the tank is at its maximum height

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