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artcher [175]
3 years ago
15

Factor the polynomial 4x^2-16

Mathematics
2 answers:
Karolina [17]3 years ago
8 0

Answer:

4(x+2)4(x-2)

Step-by-step explanation:

Aleksandr [31]3 years ago
6 0

Answer: 4(x+2)(x-2)

Step-by-step explanation: Just use Math-way it really helps

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These are the means and standard deviation for samples of building heights in two different cities. Select the two true statemen
SashulF [63]

The two true statements are A. City A's heights are more spread out than B and C. City A has a lower average height than B

Explanation:

  • The mean for building heights in city A is 120 feet while in city B it is 200 feet. This means that if all the heights are summed with each other and this sum is divided by the number of buildings measured we get 120 feet in city A and get 200 feet in city B. So buildings in city B have a higher average height than the buildings in city A. So Option C is true.
  • City A has a standard deviation of 20 feet while city B's is 12 feet. This standard deviation means that the majority of buildings heights are within 20 feet in city A and 12 feet in city B. Combining both sets of data, we can say that most of city A's building heights are within 100 and 140 feet. For city B most of the building heights are within 188 feet and 212 feet. So City A has more spread than City B which is option A.

8 0
3 years ago
Solve the proportion for “m”. 4/12=m/39
Sav [38]
Multiply both sides by 39 to get 13=M
3 0
3 years ago
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Help Please this is Study Island sorry for camera quality its asking what is the length of the red segment line. The numbers are
Maksim231197 [3]
Your answer is 5.1. hope this helps.
3 0
3 years ago
--->WORTH 50 POINTS <--- Question in the attachment below. I will give brainiest to best answer. Please show work.
notsponge [240]
Hi there

Root=0.5 means x=0.5

Plug in 0.5 for x
(b-5)0.5^2-(b-2)0.5+b=0
(b-5)0.25-(b-2)035+b=0
Simplify
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Hope this helps
7 0
3 years ago
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Lines y and z are parallel. what is the measure of angle 2?
Roman55 [17]

Answer:

it might be 28 sorry if it doesn't help.

6 0
3 years ago
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