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djverab [1.8K]
2 years ago
5

PLEASE HELP!! (2y+8)(4y-7)

Mathematics
2 answers:
rosijanka [135]2 years ago
8 0

(2y+8)(4y-7)\\\\=8y^2-14y+32y-56\\\\=8y^2+18y-56

vodomira [7]2 years ago
6 0

Answer:

6y×1

Step-by-step explanation:

Combine like terms:

2y+4y=6y

8-7=1

(6y)(1)

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A simple random sample of 32 men from a normally distributed population results in a standard deviation of 12.9 beats per minute
krok68 [10]

Answer:

Null Hypothesis, H0 = The pulse rates of men have a standard deviation equal to 10 beats per minute

Alternate Hypothesis, H1 = The pulse rates of men do not have a standard deviation equal to 10 beats per minute

Step-by-step explanation:

The null hypothesis is basically the problem statement i.e

Pulse rates of men have a standard deviation equal to 10 beats per minute

Hence, H0 = The pulse rates of men have a standard deviation equal to 10 beats per minute

The alternate hypothesis will contradict or negate the null hypothesis i.e

H1 = The pulse rates of men do not have a standard deviation equal to 10 beats per minute

4 0
3 years ago
30 points if you answer this!
lord [1]

Answer:

4y

Step-by-step explanation:

4y is a term in itself 3 and x separate aren't and 4x + 7 is an equation not a term.

8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=x%3D-2%5C%5Cx%2B3y%3D4" id="TexFormula1" title="x=-2\\x+3y=4" alt="x=-2\\x+3y=4" align="absmid
Natali5045456 [20]
X + 3y -4 =0 or x=4 I think that’s the answer
4 0
3 years ago
Describe how the graph of y= x – 12 is like the graph of y= x and how it is different
puteri [66]
The two graphs have the same slope.  But the graph of <span>y= x – 12 is 12 units below the graph of y = x.  We call that a "vertical translation."

</span>
6 0
3 years ago
Find the median of 30 , 40, 35, 50 and 55 degrees angle measures
ELEN [110]
We know that
the median <span>is the middle number when listed in order from least to greatest.
</span>
step 1
listed in order from least to greatest
[<span>30,40, 35, 50, 55]--------> [30, 35, 40, 50, 55]

step 2
find the middle number

the middle number is 40

therefore

the answer is
the median is 40</span>°<span>

</span>
6 0
4 years ago
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