3 years ago

. What is the coefficient of the xy-term in the expression 4x+5xy–2y?

Mathematics

1 answer:

quester [9]3 years ago

8 0

Answer: 5

Step-by-step explanation:

The coefficent for the xy term is 5. This is because the number attached to the term xy is 5.

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3 years ago

An algebraic expression that represents the product of r cubed and one hundred seven.

Nadya [2.5K]

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Step-by-step explanation:

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3 years ago

In rectangle ABCD, AC = -x + 21, BP = -9x + 19, and DP = -y + 5. Find the value of y.

creativ13 [48]

Answer:

y=-5

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The diagonals of a rectangle are equal and bisect each other

$BP=\frac{1}{2}AC$

$DP=BP$

step 1

Find the value of x

$BP=\frac{1}{2}AC$

substitute the given values

$(-9x+19)=\frac{1}{2} (-x+21)$

solve for x

Multiply by 2 both sides

$-18x+38=-x+21$

$18x-x=38-21\\17x=17\\x=1$

step 2

Find the value of y

$DP=BP$

we have

$BP=-9x+19$

$DP=-y+5$

substitute

$-y+5=-9x+19$

substitute the value of x

$-y+5=-9(1)+19\\-y+5=10\\y=5-10\\y=-5$

5 0

3 years ago

15 is what percent of 40?<br><br> Pls Show Work<br><br> Thx

Free_Kalibri [48]

15 = rate * 40
rate = 15/40
rate = 0.375 * 100% = 37.5%

4 0

4 years ago

Read 2 more answers

Can someone help? If b/a=c/b=d/c=2/3, find a:b:c:d.

blagie [28]

Answer: a:b:c:d = 16:24:30:40

You can also divide the ratio by 2 because all terms have 2 in common. Which would be a:b:c:d = 8:12:15:20

8 0

2 years ago