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RideAnS [48]
2 years ago
9

Find the value of this expression if x = 7 and y= -2 xy^2/9

Mathematics
2 answers:
jeka942 years ago
5 0

7(−2)^2 /9

7(−2)^2 /9  

= 28 /9

tresset_1 [31]2 years ago
4 0

the answer above this is wrong if you’re using Plato

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. f ( x ) = 9 x 3 + 2 x 2
sladkih [1.3K]

Answer:

2x(2x²+x+1)

Dtep-by-step explanation:

f(x) = 9x³+2x²-5x+4

g(x) = 5x³-7x+4

f(x) - g(x)

= 9x³+2x²-5x+4 - (5x³-7x+4)

= 9x³+2x²-5x+4-5x³+7x-5

= 4x³+2x²+2x

= 2x(2x²+x+1)

3 0
3 years ago
A student is using shadows and similar triangles to indirectly measure the height of a building. Which of the following proporti
Darya [45]

Answer:

The first and third choice

Step-by-step explanation:

4 0
2 years ago
I need working out and answers for the following:
LenaWriter [7]
A. 4x - 3 = 2x + 7
4x - 2x = 7 + 3
2x = 10
x = 5

B. 2x + 6 = 7x - 14
2x - 7x = - 14 - 6
-5x = -20
x = 4

C. 2( x + 3) = x - 4
2x + 6 = x - 4
2x - x = -4 - 6
x = -10

D.4 ( 5x - 2) = 2( 9x + 3)
20x - 8 = 18x + 6
20x - 18x = 6 + 8
2x = 14
x = 7

E.4x - 1/2 = x - 7
4x - x = -7 + 1/2
3x = (-14 + 1)/2
3x = -13/2
x = -13/6

F. 3x + 2 = 2x + 13/3
3x - 2x = 13/3 - 2
x = (13 - 6)/3
x = 7/3


Hope This Helps You!
4 0
3 years ago
How to write 1000= in Exponential form
Nadusha1986 [10]

Answer:

10x^{3}[/tex]

Step-by-step explanation:

10x^{3}

=10·10·10

=1000

5 0
3 years ago
Read 2 more answers
What is the area of a triangle with vertices at (−2, 1) , (2, 1) , and ​ (3, 4) ​ ?
VMariaS [17]
Check the picture below

area of a triangle is 1/2 bh

3 0
3 years ago
Read 2 more answers
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