3 years ago

Use distributive property to create an equivalent expression to 7x+56

Mathematics

1 answer:

Alexeev081 [22]3 years ago

6 0

The answer should be 7(x+8)

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The results of a test of a metal are shown in the table, with strain in meters per meter, andstress in units called megapascals,

shusha [124]

The metal obey this law for values of strain until 0.05, where we have a linear relationship (each increase of 0.01 in the strain causes an increase of 100 in the stress). After this point, we don't have a linear relationship anymore.

c. Since an increase of 0.01 in the strain causes an increase of 100 in the stress, the slope is:

$m=\frac{100}{0.01}=10000$

Now, calculating the coefficient b (y-intercept), we have:

$\begin{gathered} (0.01,100)\colon \\ 100=0.01\cdot10000+b \\ 100=100+b \\ b=0 \end{gathered}$

So the equation is:

$y=10000x$

The maximum value of stress is 560, and occurs at strain = 0.07.

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1 year ago

Find the values of x and y

eimsori [14]

Answer:

y = 70 and x = 20

Step-by-step explanation:

180 - 40 = 140

140/2 = 70

70 + 90 = 160

180 - 160 = 20

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3 years ago

Stephany is inviting 3 friends to a party. If each friend will get 7 cookies and each box has 10 cookies, how many boxes does St

Aleksandr [31]

Answer:

3 boxex hope that helps. yea. thats the answer

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3 years ago

If -2x+xy=30 and y=8,then what is the value of x?

Dafna1 [17]

-2x + xy = 30.....when y = 8

-2x + 8x = 30
6x = 30
x = 30/6
x = 5 <==

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3 years ago

Read 2 more answers

a hardware store has 568 nails in 8 bins. each bin has the same number of nails. how many nails are in each bin? Luke solve this

stiks02 [169]

Answer:

Step-by-step explanation:

Because you have to multiply 568 x 8 to get 4084 but when u multiply it u get 2272

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3 years ago