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wolverine [178]
3 years ago
8

Evaluate the following expression using the values given: Find LaTeX: 3r^2-5s+6t3 r 2 − 5 s + 6 t if LaTeX: r=2,\:s=-4,\:t=-1r =

2 , s = − 4 , t = − 1
Answers:
-2
26
38
-14
Mathematics
1 answer:
qaws [65]3 years ago
7 0

Answer:

26

Step-by-step explanation:

These problems always really confuse me but I took a quiz with this question and this is my answer 26

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A shipping service restricts the dimensions of the boxes it will ship for a certain type of service. The restriction states that
Igoryamba

Answer:

w =< 70

(width is less or equal to 70 inches)

Step-by-step explanation:

Let l = length, w = width, h = height

Restrictions given in this question:

'sum of perimeter of the base and the height cannot exceed 130 inches'

perimeter of the base is 2 width and 2 length of the box

perimeter = 2w + 2l

Therefore, inequality involves here is

2w + 2l + h =< 130

(Note that =< here means less or equal)

Then a new condition given with

height, h = 60 in

and length is 2.5 times the width

l = 2.5w

Substitute this new condition into the equation will give us the following:

2w + 2(2.5w) + 60 =< 130

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4 0
3 years ago
Question 20 of 21
RoseWind [281]

Answer: A. (0,2)

Y-Intercept - (0,2)

No X-Intercept.

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Hope this helps you out! ☺

7 0
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