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Hoochie [10]
3 years ago
5

How do I simplify -5(a-9)

Mathematics
2 answers:
NikAS [45]3 years ago
4 0

Answer:

-5(a-9)

Final result :

 -5 • (a - 9)

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 0 -  5 • (a - 9)

Step  2  :

Final result :

 -5 • (a - 9)

Step-by-step explanation:

Can i have brainliest?

boyakko [2]3 years ago
3 0

Answer:

-5A+45

Step-by-step explanation:

You distribute the -5 to the A and the -9

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If A = 3r^2h^2, and (rh) increases by 100%, then the new A is how many times greater than the old A? PLEASE HELP ME!!! (Specify
Maslowich

Answer: the answer is 3

Step-by-step explanation:

An increase of 100% in the value of (rh) means the value doubles. When that doubled value is squared, the new area is 4 times the old area.The question asks how many times GREATER the new A is than the old A. 4 times AS LARGE AS is a 300% INCREASE, which is 3 TIMES LARGER THAN.So the grammatically correct answer is 3 

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2 years ago
What is the equation of a line that has a y-intercept of 4 and an x-intercept of -2?​
Furkat [3]

Answer:

y = 2x + 4

Step-by-step explanation:

Two points on this line are (-2, 0) and (0, 4).  Going from the first to the second, x increases by 2 (this is the 'run') and y increases by 4 ('rise').

Thus, the slope of this line is m = rise / run =  4/2 = 2

Using the slope-intercept formula, we get y = mx + b = 2x + b

Let x = -2 and y = 0 to find b:  0 = 2(-2) + b, so b = 4, and the desired equation is then:

y = 2x + 4

6 0
3 years ago
In a normal distribution, 95% of the data fall within how many standard deviations of the mean? O A. Three standard deviations B
Galina-37 [17]

Answer:

Two standard deviations

Step-by-step explanation:

The Z score is obtained using the mean and standard deviation, according to the empirical. Rule, which gives percentage of values that lie within an interval estimate in a normal distribution ;

one standard deviation lie within 68% of the mean

Two standard deviations lie within 95%

Three standard deviations lie within 99.7%

Hence, for the question given, 95% fall within 2 standard deviations of the mean

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2 years ago
The cost price of bicycle a is $620. The shopkeeper sells it and makes a profit of
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Answer:

$341 the selling price

Step-by-step explanation:

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Thr diffrence between 4,632 and 20,000
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The answer to that is :

15,368
6 0
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