Ask question

Ask question

All categories

2 years ago

9

a lighthouse casts a 128 footshadow a nearby lampost that measures 5 feet 3inches cast an 8 Foot Shadow

1 answer:

k0ka [10]2 years ago

8 0

5 times 3 times 8 is the correct answer, because it's like finding the volume.<span />

You might be interested in

Can someone help me ? <br> answers are written below on picture sorry for handwriting

andrew11 [14]

I think it's 60
°°°°°°°°°°°°°°°°

3 0

2 years ago

Read 2 more answers

If you bought a stock last year for a price of $147, and it has risen 17.9% since then, how much is the stock worth now, to the

zysi [14]

Answer:

This is an percentage question, meaning you have to calculate the percentage rise.

1) Do 147 * 17.9% (Which equals to 26.3 [1.d.p.])

2) 26.3 is the answer

Hope it helps! :D

5 0

2 years ago

What is the surface area of a sphere with a diameter of 12 centimeters? (Use 3.14 for π .) 1,808.64 cm 2 452.16 cm 2 150.72 cm 2

svetoff [14.1K]

Sphere Surface Area = PI * diameter²
Sphere Surface Area = 3.14 * 12*12
Sphere Surface Area = <span> <span> <span> 452.16 </span> </span> </span> square centimeters

3 0

2 years ago

Read 2 more answers

I need help solving this trig problem w/ identites.

Charra [1.4K]

$\bf sin^2(\theta)+cos^2(\theta)=1\implies cos^2(\theta)=1-sin^2(\theta)\\\\\\
tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)}\qquad \qquad sec(\theta)=\cfrac{1}{cos(\theta)}
\\\\
-------------------------------$

$\bf \cfrac{1}{sin(x)-1}+\cfrac{1}{sin(x)+1}\implies \cfrac{sin(x)+1~~+~~sin(x)-1}{[sin(x)-1][sin(x)+1]}
\\\\\\
\cfrac{2sin(x)}{\stackrel{\textit{difference of squares}}{sin^2(x)-1^2}}\implies \cfrac{2sin(x)}{sin^2(x)-1}\implies \cfrac{2sin(x)}{-[~1-sin^2(x)~]}
\\\\\\
\cfrac{2sin(x)}{-[cos^2(x)]}\implies -2\cdot \cfrac{sin(x)}{cos(x)}\cdot \cfrac{1}{cos(x)}\implies -2tan(x)sec(x)$

3 0

2 years ago

Use the distributive property to remove the parentheses. <br> -7(-3x-2u+4)

spayn [35]

21x+14u-28would be the answer.

4 0

2 years ago

Read 2 more answers