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barxatty [35]
3 years ago
9

Which expression is equivalent to 10x²y + 25x^2

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0

Answer:

5x²(2y + 5)

Step-by-step explanation:

10x²y + 25x²

to start we have to express the parts of the function as multiplication

2*5*x²*y + 5*5*x²

then we have to see that they have both parts of the sum in common, and what they have in common we get out of common invoice and what is left we add together.

5x²(2y + 5)

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Y is between x and z, xy = 13.8, xz =21.4. find YZ
Reil [10]

\bf \underset{{~\hspace{7em}XZ = 21.4}}{
\stackrel{XY=13.8}{X\rule[0.35em]{17em}{0.25pt}Y}\rule[0.35em]{10em}{0.25pt}Z
}
\\\\\\
XZ=XY+YZ\implies XZ-XY=YZ\implies 21.4-13.8=YZ\implies 7.6=YZ

4 0
3 years ago
I don't know how to get the answer, but I've been given the answer and it's x=ln 8.
Pie
E^2x - 5e^x = 24

(e^x)^2 - 5e^x =24

let e^x = u

u^2 - 5u = 24

u^2 -5u - 24 =0

(u - 8)(u+3)=0

u = 8 or u = -3

since e^x = u then u can't equal -3

e^x = 8

by taking ln for both sides

ln(e^x) = ln(8)

xln(e) = ln(8) .......................ln(e) = 1

x = ln(8) = 3ln(2)


3 0
3 years ago
Write 18.766 correct to<br>(a)<br>2 significant fugures​
GaryK [48]

Answer:

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
If y=3c+2, find the value of y when x=-3
alina1380 [7]

There may be a relationship between 'x' and 'y', but we have no equation
that shows what it is.  So we don't have the information we need to answer
the question.

3 0
3 years ago
The volume of this cylinder is 1751 cubic units. What is the volume of a cone that has the same base area and the sam height
siniylev [52]

Answer:

V_2 = 583.67

Step-by-step explanation:

Given

Represent the volume of the cylinder with V1 and the cone with V2.

So:

V_1 = 1751

Required

Find V2

The volume of a cylinder is:

V_1 = \pi r^2h

Because the cone and the cylinder have the same base area and height, the volume of the cone is:

V_2 = \frac{1}{3}\pi r^2h

Substitute V_1 for \pi r^2h.

V_2 = \frac{1}{3}\pi r^2h

V_2 = \frac{1}{3}V_1

Substitute 1751 for V1

V_2 = \frac{1}{3} * 1751

V_2 = \frac{1* 1751}{3}

V_2 = \frac{1751}{3}

V_2 = 583.67

<em>The volume of the cone is 583.67 cubic units</em>

6 0
2 years ago
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