2 years ago

10 x f(7) +9 x g(-1)=

Mathematics

1 answer:

netineya [11]2 years ago

6 0

the answer is 78

Step-by-step explanation:

10×7+9x-1=78

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WILL GIVE A BRAINLIEST

skelet666 [1.2K]

Find slope
slope betwen 2 points (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)

so
first make denoms same
denom is 10
(4/5,1/5) turns to (8/10,2/10)
(1/2,3/2) turns to (5/10,15/10)
slope=(15/10-2/10)/(5/10-8/10)=(13/10)/(-3/10)=13/-3=-13/3

use point slope
use (4/5,1/5)
y-y1=m(x-x1)
a point is (x1,y1) and slope is m
y-1/5=-13/3(x-4/5)
expand
wait, we don't need to do that, the only one with slope -13/3 is D
answer is D

4 0

3 years ago

Can someone please help me out with this question

Art [367]

Answer:

Step-by-step explanation:

7 0

3 years ago

triangle RST is congruent to triangle NPQ, RT=7x-5, NQ= 5x+11, find the length of side RT and side NQ

Nitella [24]

7x + 5 = 5x + 11
2x + 5 = 11
2x = 6
x = 3

7(3) + 5
21 + 5 = 26

5 0