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den301095 [7]
2 years ago
5

Pls help with this math

Mathematics
1 answer:
Salsk061 [2.6K]2 years ago
5 0

Answer:

44.58

Step-by-step explanation:

v=\frac{4}{3}\pi r^{3}\\ given r= 2.2\\\pi =3.14\\hence:v=\frac{4}{3}  (3.14)(2.2)^3=44.58

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Hii. if Lisa was going 9.2 miles from the store to her friends house then 7.9 to her grandmas house before going 5 miles to her
STALIN [3.7K]

Answer:

  ¹9.2

<u>  +7.9 </u>

¹ 17.1

<u>  +5.0</u>

 22.1

21.1 miles

4 0
3 years ago
Match the formula to the correct figure.
ss7ja [257]
It is asking you to move the right formula with its match.

Formula for a cylinder: π*R^2*H
So the first option goes to the first shape.

Example: 
Radius=5
Length=10
π≈3.14
3.14*5²*10
=725 cm³ for the answer. 

Formula for a square: l*w*h

So the 4th option goes with the 2nd shape. 

Example: l=5 w=5 h=5
(Length * Width * Hieght) 

5*5*5=125 for the answer.

Formula for a cone is: 1/3π*r^2*h
So the second option goes to the 3rd shape. 

Example: r=3 h=11 
π≈3.14
\frac{1}{3} *3 ^{2} *11=33
33 is your answer. 

Formula for the pyramid would be: 1/3*b*h
So the 3rd option would go to the 4th shape.

Example: 
b=2 h=10
\frac{1}{3} *2*10=6.666667
Rounded: 6.6

Hope this helps!~

(Look at the attachment)

6 0
3 years ago
Read 2 more answers
Factor: m^2 - 20m - 21
Ganezh [65]

(m-21) (m+1)there I thinks it's right unless I messed up my work

6 0
3 years ago
Read 2 more answers
Find f(3) for f(x)=−5x−2<br><br> A. -10<br><br> B. -15<br><br><br> C. 13<br><br><br> D. -17
Travka [436]

Answer:

f(3) = -17

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -5x - 2

f(3) is x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(3) = -5(3) - 2
  2. Multiply:                               f(3) = -15 - 2
  3. Subtract:                              f(3) = -17
4 0
3 years ago
When the movie is half over, popcorn sells for half price. Which expression can be used to determine the new cost for 3 orders o
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Answer:

A

Step-by-step explanation:

8 0
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