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DedPeter [7]
3 years ago
8

I need help, i’ll mark brainest! fast!

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0

Answer:

k = -2

Step-by-step explanation:

f(x) =  \frac{5}{2} x + 1 \\ g(x) =  \frac{5}{2}x  - 1 \\  \\ g(x) = f(x) + k \\  \frac{5}{2} x - 1 = ( \frac{5}{2} x + 1) + k \\  - 1 = 1 + k \\ k =  - 1 - 1 \\ k =  - 2

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Find the coordinates of the midpoint of the segment whose endpoints are given . e(4,-4) , f (1,7)
laila [671]
Let g(x,y) be the midpoint of the segment ef;
So, x = (4+1)/2; then x = 5/2;
y = (-4+7)/2; then y = 3/2;
Finally, g(5/2,3/2).
3 0
3 years ago
Write a rational equation that can be solved by multiplying each side by 5(a+2)
qwelly [4]
What the answer would be is 10 :) hope that u are helped
4 0
3 years ago
Point k is between points H and J, HK=x-5, KJ=5x-12, and HJ=25. Find the value of x
Firdavs [7]
We know that if K is between H and J that HK+KJ=HJ therefore by substitution,  x-5+5x-12=25

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4 0
3 years ago
as part of a competition, diego must spin around in a circle 6 times and then run to a tree. the time he spends on each spin is
Leviafan [203]

The time he spent running is 13.80 seconds.

<h3>How much time did he spend running?</h3>

The equation that can be used to represent the time he gets to the tree is:

Time he gets to the tree = (time of each spin x total spins) + time he spent running

21 = (6 x 1.2) + r

21 = 7.20 + r

r = 21 - 7.20

r = 13.80 seconds

To learn more about mathematical equations, please check: brainly.com/question/26427570

#SPJ1

7 0
2 years ago
Question 4 (5 points)
Inessa05 [86]

Answer:

Option C

Step-by-step explanation:

Given

Mean= μ=60

and

Standard Deviation= σ=5

In order to calculate the percentage of students between 55 and 65, we have to calculate z-score for both

z-score for 55=(55-60)/5  

=(-5)/5

=-1

The area to the left of z-score -1 is 0.1587

z-score for 65=(65-60)/5  

=5/5

=1

The area to the left of z-score 1 is 0.8413

Area between z-scores of 55 and 65=0.8413-0.1587

=0.6826

Converting into percentage

=0.6826*100

=68.26%

Option C is the correct answer ..  

4 0
3 years ago
Read 2 more answers
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