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MAXImum [283]
3 years ago
15

Is 2(5m-4)-3(m-5)^2 equivalent to -3m^2+40m-83? Show your work.

Mathematics
1 answer:
ivann1987 [24]3 years ago
4 0

\\ \sf\longmapsto 2(5m-4)-3(m-5)^2

\\ \sf\longmapsto 10m-8-3(m^2-10m+5^2)

\\ \sf\longmapsto 10m-8-3(m^2-10m+25)

\\ \sf\longmapsto 10m-8-3m^2+30m-75

\\ \sf\longmapsto -3m^2+30m+10m-75-8

\\ \sf\longmapsto -3m^2+40m-83

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Please help, this makes no sense to me
aev [14]

Answer:

7/11

Step-by-step explanation:

Let X equal the decimal number

Equation 1:

X=0.63¯¯¯¯¯

With 2 digits in the repeating decimal group,

create a second equation by multiplying

both sides by 102 = 100

Equation 2:

100X=63.63¯¯¯¯¯

Subtract equation (1) from equation (2)

100XX99X===63.63...0.63...63

We get

99X=63

Solve for X

X=6399

Find the Greatest Common Factor (GCF) of 63 and 99, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 9,

63÷999÷9=711

Therefore

X=711

In conclusion,

0.63¯¯¯¯¯=711

used

https://www.calculatorsoup.com/calculators/math/decimal-to-fraction-calculator.php

6 0
3 years ago
Dominos.com allows you to build your own pizza online, but it only reveals the price at the end of the process. Watch
Ede4ka [16]

Answer:

Hi there!

Your answer is:

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I hope this helps!

3 0
3 years ago
What is 5% of $30?<br>$150<br>$35<br>$1.50<br>$25​
fomenos

Answer:

$1.50

Step-by-step explanation:

5% of 30 is 1.5 AKA 1.50

All you have to do is remove then add the dollar sign again!

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
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hram777 [196]

Answer:

I dont know what to say

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
(x-6)² + (x + 5)² = 16
Phoenix [80]

Answer:

answer A   : (2 -5)

Step-by-step explanation:

the midipoint P,Q is the center A of this circle (because PQ is a diameter)

use : (x-6)²+(x+5)² = 16 you have : A(6 , -5) now  let Q(x,y) :

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x+10 = 12

y-5 = -10

so : x = 2 and y = - 5....answer A   : (2 -5)

6 0
3 years ago
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