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IgorC [24]
3 years ago
5

2m² + 4m - 70Factor and please show steps ​

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

5 / -7

Step-by-step explanation:

2m^{2} + 14m - 10m - 70\\2m ( m + 7 ) - 10 ( 2m - 7 ) \\therefore,  ( m + 7 ) ( 2m -  10) \\or M = 5 / -7

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Kelly has 7 1/4 yards of rope. She cuts 3 inches off each end of the rope. Kelly will divide the remaining rope into 5 equal pie
lana [24]
If you take 3 inches off each end, that means you will be taking 6 inches off. If you take 6 inches away from 7 1/4 yards ,(7 yards, 9 inches,) you get 7 1/12 yards (7 yards, 3 inches).

(7 1/12) / 5 = 1.426repeating

So each piece of rope will be (Approximately) 1.4 or 1 2/5 yards.


(I think.)

3 0
4 years ago
Please help if you can
dolphi86 [110]

Answer:

x=4 or x=-5/7

Step-by-step explanation:

4 0
3 years ago
What is the inverse of function f? F(X) = square root of x +7
katrin2010 [14]

Answer: f^{-1} (x)=x^{2} -7

Step-by-step explanation:

To find the inverse of a function replace f(x) with x and the original x with y

f(x)=\sqrt{x+7} \\x=\sqrt{y+7}

Now we can solve for y

Square both sides so we can cancel out the root

x=\sqrt{y+7}\\x^{2} =\sqrt{y+7}^{2} \\x^{2} =y+7

Now subtract 7 from both sides

x^{2} =y+7\\x^{2} -7=y+7-7\\x^{2} -7=y

Now replace y with the inverse of f(x), f^{-1} (x)

6 0
3 years ago
Read 2 more answers
What is the measure of an angel that turns through 3/4 of a complete circle?
dimulka [17.4K]
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I added 48+56 and got 104
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