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Allisa [31]
3 years ago
7

7x/2+5=8 solve for x

Mathematics
2 answers:
Basile [38]3 years ago
8 0

Answer:

X=6/7 or in decimal form 0.857

Step-by-step explanation:

ANEK [815]3 years ago
4 0

Answer:

X= 6/7

Step-by-step explanation:

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The table below represents a function. Which of the following equations could be its function rule?
worty [1.4K]

Answer:

y=2x-2 is the required equation.

Therefore, the second option is true.

Step-by-step explanation:

We know that the slope-intercept form of the line equation of a linear function is given by

y=mx+b

where m is the slope and b is the y-intercept

Taking two points (0, -2) and (1, 0) from the table to determine the slope using the formula

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:-2\right),\:\left(x_2,\:y_2\right)=\left(1,\:0\right)

m=\frac{0-\left(-2\right)}{1-0}

m=2

substituting the point (0, -2) and the slope m=2 in the slope-intercept form to determine the y-intercept i.e. 'b'.

y=mx+b

-2 = 2(0)+b

-2=0+b

b=-2

Now, substituting the values of m=2 and b=-2 in the slope-intercept form to determine the equation of a linear function

y=mx+b

y=2x+(-2)

y=2x-2

Thus, y=2x-2 is the required equation.

Therefore, the second option is true.

3 0
3 years ago
What is the greatest common factor of the monomials a2b5 and a3b3
Mumz [18]

Answer:

The greatest common factor of the monomials a2b5 and a3b3 is a2b3 .

6 0
3 years ago
Please check my homework on Negative Indices!
rusak2 [61]

Our first expression is (2p^{-3} q^{8} )^{4}. Upon distributing the exponent 4 on all the terms, we get:

(2p^{-3} q^{8} )^{4}=2^{4}(p^{-3})^{4}(q^{8})^{4}=16p^{-12}q^{32}=\frac{16q^{32}}{p^{12}}

Therefore, your answer is correct for this part. :)

Second expression is (2m^{-4}n^{5})^{-2}. Upon distributing the exponent -2 on all the terms, we get:

(2m^{-4}n^{5})^{-2}=2^{-2}(m^{-4})^{-2}(n^{5})^{-2}=2^{-2}m^{8}n^{-10}=\frac{m^{8}}{4n^{10}}

Your second answer is correct too.

Our third expression is 2(5g^{-4}h^{-6})^{2}. Upon distributing the exponent 2 on all the terms, we get:

2(5g^{-4}h^{-6})^{2}=2(5^{2})(g^{-4})^{2}(h^{-6})^{2}=2(25)g^{-8}h^{-12}=\frac{50}{g^{8}h^{12}}

This one is not correct. Your answer would have been correct, if the exponent were -2 instead of 2 in this part.

Our forth and last expression is 4(2c^{-3}d^{6})^{-5}. Upon distributing the exponent -5 on all the terms inside the parenthesis, we get:

4(2c^{-3}d^{6})^{-5}=4(2^{-5})(c^{-3})^{-5}(d^{6})^{-5}=\frac{4}{2^{5}}(c^{15})(d^{-30})=\frac{4c^{15}}{32d^{30}}=\frac{c^{15}}{8d^{30}}

Therefore, your answer for this part is also correct.

Looking at your work, I don't think you made a mistake in number 3 also, probably mis-typed the question while writing here :)

3 0
4 years ago
Convert the fraction 4/5 to a decimal.<br> SHOW WORKING.
astraxan [27]

Answer:

The answer is 0.8

Step-by-step explanation:

\:  \:  \:  \:  \:  \: 0. 8\\ 5 \sqrt{40}  \\  - 40 \\ 0

Thus, The answer is 0.8

<u>-TheUnknownScientist 72</u>

8 0
2 years ago
Please help! offering 15 points and a thanks with brainiest
abruzzese [7]

Answer:

\huge\boxed{ 12\ people}

Step-by-step explanation:

At least 6 hours means that the people took at least 6 hours and at most any number that is greater than 6. Here the greatest no. is 10.

<em><u>So, the range for this will be 6-10</u></em>

No. of People who sleep for 6-8 hours = 9

No. of People who sleep for 8-10 hours = 3

No. of People who sleep for 6-10 hours = 9+3

=> 12 people

4 0
4 years ago
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