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Ne4ueva [31]
3 years ago
12

PLEASE HELP!! which age group of this set of numbers has twice as many people as another age group

Mathematics
2 answers:
Butoxors [25]3 years ago
8 0
I believe it is 15-25
mafiozo [28]3 years ago
5 0

Answer:

hi im in connexus and i know the right answer!! trust me its 36-45

Step-by-step explanation:

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at a hardware store, 5 gallons of paint and 5 paintbrushes cost $120, while 2 gallons of paint and 6 paintbrushes cost $64. Find
Katyanochek1 [597]
Well the answer is 9 for 1 paintbrush
7 0
2 years ago
The total stopping distance T for a vehicle is T = 2.5x + 0.5x 2 , where T is in feet and x is the speed in miles per hour. Appr
Kobotan [32]

Answer:

%  change in stopping distance = 7.34 %

Step-by-step explanation:

The stooping distance is given by

T = 2.5 x + 0.5 x^{2}

We will approximate this distance  using the relation

f (x + dx) = f (x)+ f' (x)dx

dx = 26 - 25 = 1

T' =  2.5 + x

Therefore

f(x)+f'(x)dx = 2.5x+ 0.5x^{2} + 2.5 +x

This is the stopping distance at x = 25

Put x = 25 in above equation

2.5 × (25) + 0.5× 25^{2} + 2.5 + 25 = 402.5 ft

Stopping distance at x = 25

T(25) = 2.5 × (25) + 0.5 × 25^{2}

T(25) = 375 ft

Therefore approximate change in stopping distance = 402.5 - 375 = 27.5 ft

%  change in stopping distance = \frac{27.5}{375} × 100

%  change in stopping distance = 7.34 %

6 0
3 years ago
Help me pls imma fail
KatRina [158]

Answer:

-

Step-by-step explanation:

3 0
2 years ago
-4+5x=11 what is the answer to this two step equation?
Lena [83]

Answer:

x = 3

Step-by-step explanation:

1. 5x = 11 +4 (when the negative is moved, it turns positive)

2. 5x = 15

3. divide 15 by 5 and then you get your answer

7 0
3 years ago
Which of the following is an even function?
12345 [234]

Answer:

  • B. g(x) = 2x² + 1

Step-by-step explanation:

<u>Even function has following property:</u>

  • g(x) = g(-x)

<u>It is easy to show this works with the second choice only. All the others don't work:</u>

  • g(x) = (x - 1)² + 1
  • g(-x) = (-x - 1)² + 1

This is not correct as x - 1 ≠ -x - 1 so as their squares, so g(x) ≠ g(-x)

The last two choices are not even similarly.

6 0
2 years ago
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