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GREYUIT [131]
3 years ago
14

Question 24 of 58

Mathematics
1 answer:
Misha Larkins [42]3 years ago
3 0
Answer: Mary

Mary is more trustworthy because she interviews more students, therefore has a more accurate range of answers.
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Evaluate the expression for the given value of x.<br>0.8x+5.4 for x= -3​
kondaur [170]

Answer:

3.0

Step-by-step explanation:

0.8 times -3 = -2.4

5.4-2.4=3.0

So the answer is 3.0

4 0
2 years ago
Can someone help me with number 7 the circled one?
Ivenika [448]
Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----

x^2+x = 2x+79
x^2-x-79 = 0
------
This quadratic does not have an integer solution.</span>
5 0
2 years ago
Find the value of r in (4, r), (r, 2) so that the slope of the line containing them is −53
Elan Coil [88]

Answer:

C) 7

===========================================

Work Shown:

Use the slope formula

m = (y2-y1)/(x2-x1)

Plug in the given slope we want m = -5/3 and also the coordinates of the points. Then isolate r

m = (y2-y1)/(x2-x1)

-5/3 = (2-r)/(r-4)

-5(r-4) = 3(2-r) .... cross multiplying

-5r+20 = 6-3r

-5r+20+5r = 6-3r+5r .... adding 5 to both sides

20 = 6+2r

20-6 = 6+2r-6 ....subtracting 6 from both sides

14 = 2r

2r = 14

2r/2 = 14/2 .... dividing both sides by 2

r = 7

The slope of the line through (4,7) and (7,2) should be -5/3, let's check that

m = (y2-y1)/(x2-x1)

m = (2-7)/(7-4)

m = -5/3

The answer is confirmed

7 0
3 years ago
Read 2 more answers
A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less
NISA [10]

Answer:

you can get a good night's sleep and I will talk to you later I love you too baby girl and I Will always Love you xoxoxo I love you

5 0
2 years ago
What is the inverse of function f?<br> f(x) = -7x - 4
Alona [7]

Your inverse funtion would look like this:

f − 1 ( x ) = − x 7 − 4 7 . This would be your answer.

You're welcome ;)

5 0
2 years ago
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