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Vlad [161]
3 years ago
5

(4k² + 8k +2) - (2k + 3)

Mathematics
2 answers:
Vika [28.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

4k^2 + 8k + 2 - 2k - 3

4k^2 + 6k - 1

answer is B

statuscvo [17]3 years ago
3 0

Answer:

[B] 4k²+ 6k - 1

Explanation:

(4k² + 8k + 2) - (2k + 3)

Remove Parenthesis

4k² + 8k + 2 - 2k + 3

-2k + 3: -2k - 3

= 4k² + 8k + 2 - 2k - 3

Simplify

4k² + 8k + 2 - 2k - 3: 4k²+ 6k - 1

= 4k²+ 6k - 1

- PNW

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poizon [28]
1. Cone

r=7cm
h=21cm

V= \frac{\pi*r^2*h}{3}=\frac{\pi*7^2*21}{3}=7^2*7*\pi=7^3\pi=343{\pi}cm^3

Answer: D

2. Cylinder

r=5ft
h=16ft

V= \pi*r^2*h=\pi*5^2*16=25*16\pi=400\pi ft^3

Answer: A

3.Pyramid

In this case it will be

V= \frac{a*b*h}{3}

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b=4ft
h=12ft

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7 0
3 years ago
Maggie's brother is 4 years younger than four times her age. The sum of their ages is 56.
son4ous [18]

Answer:

13

Step-by-step explanation:

56-4=52 then 52/4 is 13

8 0
3 years ago
Find the midpoint of A and B where A has coordinates (-3,-5) and B has coordinates (4,4).
snow_lady [41]

Answer:

(\frac{1}{2}, \frac{-1}{2})

Step-by-step explanation:

Use the midpoint formula to solve.

1) Given 2 points: (x_{1}, y_1) and (x_2, y_2)

The midpoint formula would be (\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2}).

2) Based on this, we can easily find the midpoint of AB.

  • -3 would be x_1\\
  • -5 would be y_1
  • 4 would be x_2  
  • the next 4 would be y_2

3) With this information, we can solve for the midpoint.  

(\frac{-3+4}{2}, \frac{-5+4}{2}) --> (\frac{1}{2}, \frac{-1}{2}) --> This is your answer.

8 0
2 years ago
5(2x+7) HELP ASAP PLS​
Bingel [31]

Answer:

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Step-by-step explanation:

Plz mark brainliest

3 0
3 years ago
Help this is worth a lot of points
hjlf

Answer:

C

Step-by-step explanation:

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5 0
2 years ago
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