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Arte-miy333 [17]
3 years ago
9

Somebody please help me !!!!

Mathematics
1 answer:
Stells [14]3 years ago
7 0

Answer:

First use this formula=  V=4/3πr^3

r=radius

Step-by-step explanation:

answer: 2144.66 I think. I might be wrong. Please let me know if I'm wrong.

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Howdy! Id love to have these questions answered asap! Thank you for the help!
tiny-mole [99]

Answer:

<em>1. B.</em>

<em>2. B.</em>

Step-by-step explanation:

<u>Trigonometry</u>

1) Coterminal angles can be found by adding or subtracting 360° (or 2\pi radians) to a given angle. If we have 120°, adding 360° gives 480°, adding again 360° gives 840°. There is no way to get -180°, so this option is not a coterminal angle to 120°

2)

A. Cos (-90^o)=0, and not undefined

B. Sin (-90^o)=-1. This is correct

C.  Tan (-90^o) is undefined, not zero

Thus the only correct option is B.

8 0
3 years ago
A 70-ft ladder is mounted 10 ft above the ground on a fire truck. The bottom of the ladder is 40
riadik2000 [5.3K]

\text{Hello there!}\\\\\text{Use the Pythagorean theorem first:}\\\\a^2+b^2=c^2\\\\\text{Plug 70 to c since it's your hypotenuse and plug 40 to a}\\\\40^2+b^2=70^2\\\\\text{Solve for b:}\\\\40^2+b^2=70^2\\\\1600+b^2=4900\\\\\text{Subtract 1600 from both sides}\\\\b^2=3300\\\\\text{Square root}\\\\b=57.4456\\\\\text{Round to the nearest tenth}\\\\57.4\\\\\text{Add 10 to 55.4 because the ladder is 10 ft off the ground}\\\\67.4\\\\\boxed{\text{Answer: about 67.4 ft}}

3 0
3 years ago
Solve the trigonometry equation cos4x+cos2x
Amanda [17]

2 \cos(3x)  \cos(x)
3 0
3 years ago
Find the 4th term. -2n2 - 4n +5
alisha [4.7K]

Answer: -43

Step-by-step explanation:

-2(4*4)= -32

-32-(4*4)= -48

-48+5=-43

6 0
3 years ago
If the lowest used price is $3.84 and the average used price is $9.84, What is the price half way between the 2 prices?
TiliK225 [7]

Answer:

$6.84

Step-by-step explanation:

Add the 2 values together and divide by 2

$3.84 + $9.84 = $13.68

$13.68/2 = $6.84

7 0
3 years ago
Read 2 more answers
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