Question

Write a mathematical expression for: the sum of twice a number n and 20.
A. the fraction n over 2 then plus 20
B. 2n + 20
C. 2n minus 20
D. n + 2 times 20

Answer 1

"twice a number n" is like saying "2 times n" = 2n
"sum" means adding
so the sum of 2n and 20 is 2n plus 20

Answer 2

thanks i really appreciate it

Answer 3

you're welcome :) glad I could help

Answer 4

covalent compound CCl4?

Answer 5

tetraphosphorus decoxide?
Express your answer as a chemical formula.

Answer 6

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Answer 7

need calc checked and finished

Answer 8

3. One light-year is the distance that light travels in exactly one year. If the speed of light is 6.

Answer 9

IS this right?

Answer 10

A 10" diameter pumpkin pie is cut into six equal servings.
What is the approximate area of the top of each piece of pie?

3.

Answer 11

Which correctly lists Continental Army General Horatio Gatesu2019 great victory f

Answer 12

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Answer 13

Which shows 54^2 u2212 46^2 being evaluated using the difference of squares metho

Answer 14

1 Emily was thrilled to hear that her new Toyota Prius had arrived. 2She called her parents and thanked them as she rode with her sister to pick up the vehi

Answer 15

Favorite fast food restaurant and what do you order there?

I give up on cooking my own food.

Answer 16

Choose the correct product of (5x u2212 11)^2.

25x^2 u2212 110x + 121
25x^2 u22

Answer 17

Out of the 180 students at a summer camp, 72 signed up for canoeing. There were 23 students who signed up for trekking, and 13 of those students also signed

Answer 18

The graph of f(x) = x^2 is shifted 3 units to the left to obtain the graph of g(x).

Answer 19

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Answer 20

A box plot was made to represent the number of matches won by 14 participants in a tennis tournament.

Answer 21

A polynomial function can be written as (x + 2)(x + 3)(x u2212 5). What are the x

Answer 22

The length of a rectangle is represented by the function L(x) = 4x. The width of that same rectangle is represented by the function W(x) = 7x^2 u2212 4x + 2

Answer 23

Choose the polynomial that is written in standard form.

2x2y2 + 3x4y + 10x6
4x4