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White raven [17]
3 years ago
14

Evaluate if x = 2 and y = -4: x³ + y² *

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0

Answer:

=24

Step-by-step explanation:

Evaluate for x=2,y=−4

23+(−4)2

23+(−4)2

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A cylinder has height of 10 millimeters and radius 12 millimeters.Find the a.volume and b. surface area.
Sholpan [36]

Answer:

A. <u>Volume = 4,523.9 mm³ (cubic mm)</u>

B. <u>Surface area = 1,658.76 mm² (square mm)</u>

Step-by-step explanation:

A. Lest's calculate the volume of the cylinder:

r = 12 mm, h = 10 mm

Volume = π * r² * h

Volume = 3.1416 * 12² * 10

Volume = 3.1416 * 144 * 10

<u>Volume = 4,523.9 mm³</u>

B. Let's calculate the surface area of the cylinder:

Surface area = 2π * r * h +2π * r²

Surface area =2π * 12 * 10 + 2π * 12²

Surface area = 6.2832 * 120 + 6.2832 * 144

<u>Surface area = 753.98 + 904.78 = 1,658.76 mm²</u>

8 0
3 years ago
If f(x) = 3x – 2 and g(x) = 2x + 1, find (f – g)(x)
expeople1 [14]

Answer:

x-3

Step-by-step explanation:

f(x) = 3x – 2

g(x) = 2x + 1

(f – g)(x) = 3x-2 - ( 2x+1)

    Distribute the minus sign

              = 3x-2 -2x -1

              = x -3

5 0
3 years ago
-4.6+5.3 help please thank you are the best
fomenos

Answer:

0.7

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
1. Find the area of the composite figure. Heellllppppp
Alexandra [31]

Answer: 24

Step-by-step explanation:

Basically you just need to add the sides up to get your answer, its like breaking it up and adding simply.

3 0
2 years ago
Read 2 more answers
What is the sum, in lowest terms?
m_a_m_a [10]

Answer:

1/2 + 3/4 + 11/4 +11/4

=27/4

3 0
3 years ago
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