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Nata [24]
3 years ago
14

What’s the algebraic expression of ? Twice the sum of a number n and 2 ?

Mathematics
2 answers:
Mandarinka [93]3 years ago
5 0

Answer:

A is the answer. 2(n+2)

Kobotan [32]3 years ago
5 0

Answer:

A

Step-by-step explanation:

The sum of a number n and 2 is n + 2

Twice this sum is

2(n+ 2) → A

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2c + 4d<br> C=8<br> D=-5<br> Please help
Dahasolnce [82]

Answer:

2c+4d

if c=8 and D=5,

2(8)+4(5)

16+20

=36

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Help? I dont remember what standard form is? is it y=mx+b or that something else? Pls explain how to solve this? Will mark brain
Pavel [41]

Answer:

The standard form of a linear equation is AX + BY = C.

Step-by-step explanation:

The equation y=mx+b is slope-intercept form. When referring to the standard form of a quadratic equation, the expression is ax^2 + bx + c = 0.  

6 0
3 years ago
Find the missing side length. Round your answer to the nearest tenth.
EastWind [94]

Answer:

5.545

Step-by-step explanation:

This problem can be easily solved by using the law of cosines, which relates the lengths of the sides of a triangle to the cosine of one of its angles.

in this case, the formula can be applied in the following way

a^2 = b^2  + c^2  - 2*b*c*cos(α)

Where

a,b,c are each of the sides of the triangle,

α is the angle between sides b and c

(See attached picture)

If we use the formula we get

a^2 = (9)^2 + (6)^2 - 2*(9)(6)*cos(37°)

a^2 = 81 + 36 - 86.2526

a^2 = 30.747

a = sqrt(30.747)

a = 5.545

5 0
3 years ago
Use the graph below to find the equation that it represents.
hoa [83]

Answer:

looking at the image it forms

the equation it'll make B: y= -2x -4

each dot will equal -2 and the dot is maybe one 2 but thats due to the problem of 4-2x1 so it's marked on 2 instead of four incase it throw you off of thy answer of B

4 0
2 years ago
The distance between the points (−5, 1) and (2, −1).
devlian [24]
Here u go :) hope it helps

8 0
3 years ago
Read 2 more answers
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