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salantis [7]
3 years ago
11

What is the value of x/(4x +7) [5(x-4)]

Mathematics
1 answer:
Anon25 [30]3 years ago
6 0

Answer:

(4x+7) [5(x-4)]

(4x+7)(5x-20)

20x^2-80x+35x-140

20x^2-45x-140

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Can anyone help me with these i need them befire tomorrow
mash [69]
When you have a scale factor as percentage, is better to convert that percentage into a fraction by divide it by 100%. That way, it will be much easier to scale your figures.

1. 
The scale factor we need to apply to our rectangle is 60%. Firts, lets convert our scale factor into a fraction: \frac{60}{100} = \frac{3}{5}. Next, we just need to multiply each side of our rectangle by our fraction:
length=16( \frac{3}{5})=9.6
width=8( \frac{3}{5} )=4.8
So, our new rectangle will have a length of 9.6 units and a width of 4.8 units.

2. This time the scale factor is 120%. Just as before, lets convert it into a fraction: \frac{120}{100} = \frac{6}{5}, and just as before lets multiply each side of our triangle by our fraction:
base=10( \frac{6}{5} )=12
side=8( \frac{6}{5} )=9.6
So, our new isosceles triangle will have a base of 12 units and tow sides of length 9.6 units each.

3. This time the scale factor is 150%. Just as before, lets convert it into a fraction: \frac{150}{100} = \frac{3}{2}, and just as before lets multiply each side of our polygon by our fraction:
12( \frac{3}{2} )=18
15( \frac{3}{2} )=22.5
13( \frac{3}{2} )=19.5
So, our new polygon will have a side of 12 length units, tow sides of 15 length units, and two side of 15 length units.

4. This time our factor is 75%. Just as before, lets convert it into a fraction: \frac{75}{100} = \frac{3}{4}, and just as before lets multiply each side of our parallelogram by our fraction:
side=25( \frac{3}{4} )=18.75
So, our new parallelogram will have tow sides of length 18.75 units.

7 0
3 years ago
HELP ME PLEASE ASAP
sleet_krkn [62]

D :- 10 - 25 = -5

4 - 5 = -1

Required Answer:- -1

5 0
2 years ago
Read 2 more answers
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!
Zinaida [17]
Answer: 8-n>_10 letter A
3 0
2 years ago
Read 2 more answers
If a(x) = -9 - 2x, what is an equation for a-'(x)?
saul85 [17]

Answer:

The answer should be A..

8 0
3 years ago
I really need help. Any help is appreciated.
finlep [7]
The equation is:
f ( x ) = 4 * 5 ^{2x}
f ( - 1 ) = 4 * 1/25 = 4/25 ( false )
f ( 0 ) = 4 * 1 = 4 ( false )
f ( 1 ) = 4 * 25 = 100 ( false )
f ( 2 ) = 4 * 5 ^4 = 4 * 625 = 2500  ( correct )
Answer:
D )  ( 2,  2500 )
4 0
3 years ago
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