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In-s [12.5K]
4 years ago
13

Carmen simplifies the expression (4y+8x+6)+25+(4x+6y+7). The coefficient of the variable y in her simplified answer is

Mathematics
2 answers:
dalvyx [7]4 years ago
3 0
2(5y+6x+19) is the correct answer.
lord [1]4 years ago
3 0
It’s 10y, because 4y plus 6y equals 10y
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When number can each term of the equation be multiplied by to eliminate the fractions before solving 6-3/4x+1/3=1/2x+5​
PolarNik [594]

Answer:

12

Step-by-step explanation:

You need to find the least common denominator (LCD) to all the denominators of the fractions present in the equation. These denominators are (writing them in their prime factor form to make our calculations easier):

4=2^2\\3=3\\2=2

Therefore, we need to include a factor of 3, and two factors of 2 (2^2) in our least common denominator, so this LCD will be a perfectly divided by all three given denominators, therefore eliminating all fractions in the equation.

Our LCD is = 3*2^2=13*4=12

6 0
3 years ago
Assume that trees are subjected to different levels of carbon dioxide atmosphere with 7% of the trees in a minimal growth condit
taurus [48]

Answer: The mean and standard deviation are 567.2 and 89.88 resp.

Step-by-step explanation:

Since we have given that

For 370 parts per million = 7% = 0.07

For 440 parts per million = 10% = 0.10

For 550 parts per million = 49% = 0.49

For 670 parts per million = 34% = 0.34

So, Mean of the carbon dioxide atmosphere for these trees would be

E[x]=370\times 0.07+440\times 0.1+550\times 0.49+670\times 0.34=567.2

And

E[x^2]=370^2\times 0.07+440^2\times 0.1+550^2\times 0.49+670^2\times 0.34=329794

So, Variance would be

Var\ x=E[x^2]-E[x]^2=329794-567.2^2=8078.16

So, the standard deviation would be

\sigma=\sqrt{8078.16}=89.88

Hence, the mean and standard deviation are 567.2 and 89.88 resp.

3 0
4 years ago
Write and solve an inequality.
TEA [102]

Answer:

ok

Step-by-step explanation:

4 0
3 years ago
Find the measure of the indicated angle
Monica [59]

Answer:

Step-by-step explanation:

36°

4 0
3 years ago
What is the next number in the sequence? -1, 5, -25
Akimi4 [234]

Answer:

125

Step-by-step explanation:

Multiplies by -5

-5*-1=5

5*-5=-25

-25*-5=125

3 0
3 years ago
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