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Reika [66]
3 years ago
15

Simplify 2a+2−3a−5+a−4+7a.

Mathematics
2 answers:
yKpoI14uk [10]3 years ago
8 0

Answer:

7a-7

Step-by-step explanation:

2a+2-3a-5+a-4+7a

=2a-3a+a+7a+2-5-4

=7a-7

zhuklara [117]3 years ago
3 0

Answer:

7a-7

Step-by-step explanation:

2a+2−3a−5+a−4+7a.

Combine like terms

2a-3a+a+7a+2-5-4

7a-7

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What is an efficient way to compute 47^2–37^2 without using raw calculations?
e-lub [12.9K]

Answer:

(47+37)(47-37)

Step-by-step explanation:

47^2-37^2 is a difference of two squares. a^2-b^2 = (a+b)(a-b) so this expression can be factored to (47+37)(47-37) = (84)(10) = 840

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What is the vertex of function f(x)=(x-3)(x+5)?
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Answer:

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Step-by-step explanation:

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3 years ago
A. Does the relationship of weeks passed and total number of followers represent a linear function? (0.5 points) B. What is the
vodomira [7]

The terms "linear function" in mathematics apply to two different but related ideas: A polynomial function of degree zero or one that has a straight line as its graph is referred to as a linear function in calculus and related fields.

a) Yes it does, because the graph of their relationship is a Straight line

b) Independent variables are variables whose variation does not depend on another. Number of works does not depend on followers. Therefore, it is independent

C)number of followers depend on the number of locks passing. It is dependent.

D) Slope = (Y₂- Y₁)/(x₂-x₁) = (100-82)/ (3-0) =  18/3 = 6

It represents the increase in number of followers per week,

E) y-intercept is value of y when x=0

y-intercept = 82. It means his initial number of followers

F) Slope-intercept form → y = mx + c m = slope горе C = y-intercept y = no of followers x= weeks.

Y=6x+82

Learn more about linear function here:

brainly.com/question/4025726

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7 0
2 years ago
One student ate 3/20 of all candies and another 1.2 lb. The second student ate 3/5 of the candies and the remaining 0.3 lb. What
Roman55 [17]
The students ate 6 lbs of candies.
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3 years ago
A man walks 20 km in 4hours. Find his speed
lianna [129]

Answer: 5km per hour

Step-by-step explanation:

You'd do 20/number of hours so you get 1 hour and you'll get his walking speed

7 0
3 years ago
Read 2 more answers
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