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2 years ago

7

At noon, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 30 km/h. How fast is

the distance between the ships changing at 4:00 PM?

1 answer:

Marrrta [24]2 years ago

4 0

Answer:

150 km/h

Step-by-step explanation:

because it's then 2 together

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3 divided by 4 is 3/4 what is 1/4 of 3

Zigmanuir [339]

Answer:

0.75 or 3/4

Step-by-step explanation:

1/4 of 3 would still end up to be 3/4 or as a decimal it would be .75

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2 years ago

Helen has 48 cubic inches of clay to make a solid square right pyramid with a base edge measuring 6 inches. Which is the slant h

Nikitich [7]

Answer: 5 inches

Step-by-step explanation:

Given: Volume of clay = 48 cubic inches

If we make a solid square right pyramid with a base edge a= 6 inches.

Then its base area = $a^2=6^2=36\ inches^2$

we know that volume of square right pyramid= $\frac{1}{3}\times\ a^2h$

Therefore, volume of square right pyramid made by all of clay= $\frac{1}{3}\times\ a^2h$ =48 cubic inches

$\Rightarrow\frac{1}{3}\times\ (36)\times\ h=48\\\Rightarrow12h=48\\\Rightarrow\ h=4\ inches.....\text{[Divide 12 on both sides]}$

Now, slant height $l=\sqrt{(\frac{a}{2})^2+h^2}$

$\\\Rightarrow\ l=\sqrt{3^2+4^2}\\\Rightarrow\ l=\sqrt{9+16}\\\rightarrow\ l=\sqrt{25}\\\Rightarrow\ l=5$

The slant height of the pyramid if Helen uses all the clay=5 inches

5 0

2 years ago

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Si f(1)=18 que es f(5)

alexira [117]

F(5)=90 pienso que si

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2 years ago

8 < 4(x+1) show your work

kati45 [8]

8 < 4 (x + 1) Use the Distributive Property
8 < 4x + 4 Subtract 4 from both sides
4 < 4x Divide both sides by 4
1 < x

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2 years ago

Explain your work !!!!<br> What is 17^3<br><br> A. 20<br> B. 4913<br> C. 51<br> D. 306

Travka [436]

A number raised to an exponent is that number multiplied by itself that number of times.

17^3 = 17 x 17 x 17 = 4913

The answer is B.

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2 years ago

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