2 years ago

A 5ft tall girl is standing 13ft from a 15ft tall lamppost. How long is her shadow?

Mathematics

1 answer:

kiruha [24]2 years ago

3 0

That could possibly be 6-7ft

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Choose the correct simplification of f^9 h^23/f^3 h^17

Tanzania [10]

Answer:

f6h40

Step-by-step explanation:

Step 1 :

h23

Simplify ———

Equation at the end of step 1 :

h23

((f9) • ———) • h17

Step 2 :

Multiplying exponential expressions :

2.1 h23 multiplied by h17 = h(23 + 17) = h40

Final result :

f6h40

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2 years ago

Ratio for the volumes of two similar pyramids, given that the ratio of their edge lengths is 8:3?

emmasim [6.3K]

All you have to do is divide the left side of the ratio by 5 and the right side of the ratio by 7. The one that comes out even on both sides is the correct one.

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2 years ago

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Oduvanchick [21]

Answer:

Solid 7

Step-by-step explanation:

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-sqr(4x+6)-15<br><br> Find the domain.

Maksim231197 [3]

Answer:

Step-by-step explanation:

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2 years ago

A hailstone falls from a cloud at a height of 1,600 ft. If the equation for height as a function of time is h(t) = -16t2 + initi

Helen [10]

Answer:

10 seconds

Step-by-step explanation:

The function is

$h(t)=-16t^2+\text{Initial height}$

Initial height = 1600 ft

t = Time taken

$0=-16t^2+1600$

$\Rightarrow -16t^2=-1600$

$\Rightarrow t^2=\dfrac{1600}{16}$

$\Rightarrow t^2=100\\\Rightarrow t=\pm 10$

So, time taken by the hailstone to reach the ground is $10\ \text{seconds}$ .

7 0

2 years ago