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monitta
3 years ago
13

7x^2+8=18x Need help learning factoring please put work so I can understand

Mathematics
1 answer:
Zigmanuir [339]3 years ago
6 0

Answer:

(x - 2)(7x - 4)=0

Step-by-step explanation:

7 {x}^{2}  + 8 = 18x \\ 7 {x}^{2}  - 18x + 8 = 0 \\ 7 {x}^{2}   -  14x - 4x + 8 = 0 \\ 7x(x  -  2) - 4(x - 2) = 0 \\ (x - 2)(7x - 4) = 0

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Park city Utah gets 43.8inches of rain per year. Usually 45% of that amount falls in November. How much rain falls in those mont
aliina [53]
43.8 = 100%
43.8/100 = 0.438 = 1%
0.438 x 45 = 19.71 = 45%
19.71 inches of rain falls in November.
3 0
3 years ago
A photocopy machine can print 405 copies in 9 minutes. what is the unit rate the machine can produce in 1 minute
Zolol [24]

Answer:45

Step-by-step explanation: divide 405 by 9

3 0
3 years ago
Convert 8pints to cups
ruslelena [56]
The correct answer is 16 cups. Because 8 pints equal 16 cups.

Hope I helped!

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4 0
3 years ago
How could you rewrite 0.05×10=0.5 as a division equation?
miss Akunina [59]

It's gonna be 0.5/10

7 0
4 years ago
Read 2 more answers
Anyone help me, please I need help<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20-%205%7D%20%20%3D%20%208%20%5Csqrt%5B%5
Ilya [14]

Answer:

No Real Solutions.

Step-by-step explanation:

√(x-5)=8√(x-2)

Square on both sides,

(√(x-5))^2=(8√(x-2))^2

or,(x-5)=64(x-2)

or,x-5=64x-128

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or,123/63=x

Therefore, x=41/21

If you plug x=41/21 in √(x-5)=8√(x-2) you do not get equals, so the problem has no real solutions.

7 0
3 years ago
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