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LiRa [457]
3 years ago
15

What is the product of -9(5-2x)

Mathematics
2 answers:
nata0808 [166]3 years ago
5 0
-45+18x is the answer
Hope this helped <3
sergejj [24]3 years ago
4 0

Answer:

\text{The product is -45+18x}      

Step-by-step explanation:

Given the expression

-9(5-2x)

we have to find the product.

-9(5-2x)

By distributive property,

a(b+c)=ab+ac

\text{Put a=-9, b=5 and c=-2x}

-9(5+(-2x))=-9(5)+(-9)(-2x)=-45+18x

which is the required product.

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What equation is perpendicular to y=2x-3 and<br> passes through (-1, 2)?
Wittaler [7]

Answer:

\[y=-\frac{1}{2}x+\frac{5}{2}\]

Step-by-step explanation:

Equation of the given line: \[y=2x-3\]

Slope of the line = \[2\]

Slope of the perpendicular line = \[-\frac{1}{2}\]

So the equation of the perpendicular line:

\[y=-\frac{1}{2}x+c\]

This passes through the point (-1,2).Substituting in the equation:

\[2=-\frac{1}{2}*(-1)+c\]

=> \[c=2+\frac{1}{2}\]

=> \[c=\frac{5}{2}\]

So the equation of the line :

\[y=-\frac{1}{2}x+\frac{5}{2}\]

4 0
2 years ago
Lillian bought 2.52 pounds of tomatoes and 1.26 pounds of lettuce to make a salad for 18 people. If each person got the same amo
Nuetrik [128]
2.52 pounds + 1.26 pounds = 3.78 pounds of salad ÷ 18 people = .21 pounds of salad per person

you add the pounds because that is everything she used to make the salad. then you divide by 18 because there are 18 people eating the salad and everyone gets exactly the same amount. Hope this helps :) this should help if you have more questions like this :)
(x pounds + y pounds = total pounds, total pounds ÷ # of people = pounds per person)
6 0
3 years ago
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Find an equation of the line that has a slope of 9 and a y intercept of -2.
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Answer:

y = 9x-2

Step-by-step explanation:

y=mx+c

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y-intercept (c) = -2

Therefore, an equation of the line =

y = 9x-2

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I have made it in above figure

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