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Evgesh-ka [11]
3 years ago
5

Simplify (x − 4)(x2 + 3x − 1).

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
5 0

Answer:

x^3-x^2-13x+4

Step-by-step explanation:

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Determine whether the following event is mutually exclusive or not mutually exclusive.
Softa [21]

Answer:

The event is mutually exclusive.

Step-by-step explanation:

Mutually exclusive events are events that cannot exist simultaneously.

Thus, events that are not mutually exclusive can exist simultaneously.

Since each student only has one major, a single student cannot be both a mathematics major and a business major.

So, the event is mutually exclusive.

5 0
3 years ago
What is the value of -32+(-4+7)(2)?<br> -28<br> -3<br> 3<br> 15
I am Lyosha [343]

Answer:

-26

Step-by-step explanation:

  1. -32+3×2
  2. -32+6
  3. -26

By using BODMAS, any of the answers given is correct!

6 0
3 years ago
Read 2 more answers
Dr. Ashby is studying the heart rate of adult men. Preliminary data suggests that the standard deviation of heart rates for adul
jok3333 [9.3K]

Answer:

n=42 adult men

Step-by-step explanation:

-The minimum sample size to get a desired margin of error, E is calculated using the formula:

n\geq( \frac{z\sigma}{E})^2

-Given that \sigma=7.5, \ \ E=3\ , \ z_{0.005}=2.58, we can substitute to solve for n in the above formula:

n\geq (\frac{z\sigma}{E})^2\\\\\therefore n=(\frac{z_{\alpha/2}\sigma}{E})^2\\\\=(\frac{2.58\times7.5}{3})^2\\\\=41.6025\approx42

Hence, the desired minimum sample size, n is 42 adult men.

4 0
3 years ago
Wouldn’t it be the 3rd answer 1/3 + 1/4 because you have to convert the dominators into 12 then you will get 4/12 and 3/12 then
marusya05 [52]

Answer:

Yes, correct

Step-by-step explanation:

Hope that helppppps

7 0
3 years ago
Write as Exponential form:a.a.a.c.c.c.c.m.m.m
pickupchik [31]
A^3c^3m^3

it would be a cubed or a to the third power, c cubed or c to the third power, and m cubed or m to the third power
8 0
3 years ago
Read 2 more answers
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