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AleksandrR [38]
3 years ago
13

Simplify the following expression completely using distribution and combining like terms

Mathematics
2 answers:
Makovka662 [10]3 years ago
7 0

Answer:

-2m - 10

Step-by-step explanation:

3m - 2(5 + 3m) + m​ =

3m - 10 - 6m + m =

-2m - 10

bezimeni [28]3 years ago
7 0
The answer is -2m -10
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Seattle, WA and San Francisco, CA lie on the same longitudinal line. San Francisco is at 38° latitude and Seattle is at 47° lati
Helen [10]

Step 1.

Calculate measure of angle α:

47^o-38^o=9^o

Step 2.

Calculate what fraction of the angle 360° ​​is the angle α:

\dfrac{9^o}{360^o}=\dfrac{1}{40}

Step 3.

Calculate the circumference of the Earth (circle):

C=2\pi r\to C=2\pi\cdot4000=8000\pi\ mi

Step 4.

The length of arc is equal 1/40 of the circumference:

\dfrac{1}{40}C=\dfrac{1}{40}\cdot8000\pi=200\pi\ mi

\pi\approx3.14\to\dfrac{1}{40}C\approx200\cdot3.14=628\ mi


<h3>Answer: A) 628 miles</h3>

7 0
4 years ago
Solve for e. T=e29<br><br><br> ​​ e=±3T√T<br><br> e=±3T<br><br> e=±3T√<br><br> ​ e=±9T√ ​
Anon25 [30]

Answer:

option (3) is correct.

e= \pm 3\sqrt{T}

Step-by-step explanation:

Given T=\frac{e^2}{9}

We have to solve for e.

Consider the given statement,

T=\frac{e^2}{9}

Cross multiply, we get,

\Rightarrow 9T={e^2}

Taking square root both sides , we get,

\Rightarrow \sqrt{9T}=e

We know square root of 9 is 3.

\Rightarrow \pm 3\sqrt{T}=e

Thus, option (3) is correct.

e= \pm 3\sqrt{T}

4 0
3 years ago
Find the slope rise/run
Sloan [31]

Answer:

m = -1/3

Step-by-step explanation:

Find two points in order to calculate slope:

  • (0, 2)
  • (3, 1)

Slope (m) =

ΔY /ΔX= -1/ 3= -0.33333333333333

  • ( ΔX = 3 – 0 = 3
  • ΔY = 1 – 2 = -1 )

Slope intercept:

y = -0.33333333333333x + 2

3 0
2 years ago
Read 2 more answers
The perimeter of a rectangle is 400 feet and the length of the rectangle is 3 times the width. find the dimensions of the rectan
bazaltina [42]
Width: x
Length: 3x
Perimeter=x+x+3x+3x=8x
8x=400
x=50
Dimension is 150×50 feet (length × width)
8 0
3 years ago
Emily spent a total of 38.04 on four CDs if each CD cost the same amount what is a reasonable amount for each CD explain why you
mojhsa [17]
To find the cost of one CD, we divide 38.04 by 4

38.04 ÷ 4 = 9.51

The answer is reasonable because it's an accurate answer.
6 0
3 years ago
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