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JulijaS [17]
3 years ago
12

HELP ME NOW PLEASE! WILL GIVE BRAINLY!!!!!!!!!!!!!!!! PLUS 30 POINTS

Mathematics
2 answers:
Leviafan [203]3 years ago
6 0

Answer: 13

Step-by-step explanation:

cost for 3 hours: 7+2(3)=13

cost for t hours: 7+2t

Gemiola [76]3 years ago
3 0

Answer:

13

Step-by-step explanation:

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Find the range of f(x) = -x+4 for the domain {-3, -2, -1, 1}.
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\bf \begin{array}{|rrrr|ll} \cline{1-4} \stackrel{domain}{x}&\stackrel{f(x)}{-x+4}&&range\\ \cline{1-4} -3&-(-3)+4\to &3+4\to &7\\ -2&-(-2)+4\to &2+4\to &6\\ -1&-(-1)+4\to &1+4\to &5\\ 1&-(1)+4\to &-1+4\to &3\\ \cline{1-4} \end{array}\qquad\qquad \stackrel{\mathbb{RANGE}}{\{7,6,5,3\}}

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What’s y=1/2x+5. Domain=4,7,11,12
ehidna [41]

The values of y are 7, 8.5, 10.5 and 11

<h3>How to determine the values of y?</h3>

The equation is given as:

y = 1/2x + 5

The domain is given as:

Domain = 4, 7, 11, 12

This means that

x = 4, 7, 11, 12

Substitute x = 4, 7, 11, 12 in the equation y = 1/2x + 5

So, we have:

y = 1/2 * 4 + 5 = 7

y = 1/2 * 7 + 5 = 8.5

y = 1/2 * 11 + 5 = 10.5

y = 1/2 * 12 + 5 = 11

Hence, the values of y are 7, 8.5, 10.5 and 11

Read more about linear function at:

brainly.com/question/15602982

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