3 years ago

For each ordered pair determine if it is a solution to 7x+5y=9

Mathematics

1 answer:

ale4655 [162]3 years ago

5 0

Answer
2,-1

Explanation
Because ik

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Step-by-step explanation:

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3 years ago

Compute the norm of v when v = (-8,7,4)

dexar [7]

Answer:

the norm of V = =11.357816691601..

Step-by-step explanation:

$\left\vert \overrightarrow{V} \right\vert =\sqrt{\left( -8\right)^{2} +\left( 7\right)^{2} +\left( 4\right)^{2} }$

$=\sqrt{64+49+16}$

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2 years ago

#20 four times the sum of number. and 15 is a least20. Let X represent the number. :find ball possible values for X

gayaneshka [121]

For this case what we have to take into account is the following variable:
x = represent the unknown number
We now write the following inequality:
"four times the sum of number and 15 is at least 20"
4 (x + 15)> = 20
We clear the value of x:
(x + 15)> = 20/4
(x + 15)> = 5
x> = 5 - 15
x> = - 10
The solution set is:
[-10, inf)
Answer:
all possible values for X are:
[-10, inf)

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3 years ago

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Step-by-step explanation:

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Step-by-step explanation:

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