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2 years ago

Area sheet 3!! Need asp!!

Mathematics

2 answers:

Whitepunk [10]2 years ago

7 0

Answer:

These are in order. 1. 24cm 2. 35ft 3. 9m 4. 40in 5. 18m 6. 40

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Sergeu [11.5K]2 years ago

5 0

1) 24 square cm

2) 35 square cm

3) 9 square cm

4) 40 square cm

5) 18 square cm

6) 40 square cm

to find the area of a rectangle, all you have to do is multiply the length by the width.

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Marie has 8 hours to write a 45-page chapter

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Marie will NOT complete the chapter in time

Step-by-step explanation:

If Marie writes at a constant speed of 4 pages per hour, to write a 45-page chapter she will take;

45/4 = 11.25

= 11 ¼ hours

11 ¼ hours > 8 hours

Therefore Marie will NOT complete the chapter in time

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3 years ago

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3 years ago

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$\dfrac{3m}{7}=12\\
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3 years ago

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Find the 99th term of the arithmetic sequence 2, -3, -8,...

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3 years ago

A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to th

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Answer:

The expression of h as function of x is h = $\sqrt{(d + 5500) (d - 5500)}$

Step-by-step explanation:

Given as :

The distance of blimp (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = $\frac{AC}{BC}$ = $\frac{h}{d}$

And sin Ф = $\frac{AB}{BC}$ = $\frac{5500}{d}$

∵, cos²Ф = 1 - sin²Ф

So, $(\frac{h}{d})^{2}$ = $1 - (\frac{5500}{d})^{2}$

Or, $(\frac{h}{d})^{2}$ = $(\frac{d^{2}- 5500^{2}}{d^{2}})$

Or, h² = d² - 5500²

∴ h = $\sqrt{d^{2}- 5500^{2}}$

Or, h = $\sqrt{(d + 5500) (d - 5500)}$

Hence The expression of h as function of x is h = $\sqrt{(d + 5500) (d - 5500)}$ Answer

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3 years ago