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Semmy [17]
3 years ago
12

Which of the following points is a solution of y > |x| + 5? A) (1,7) B) (0,5) C) (7,1)

Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

A

Step-by-step explanation:

We can plug in all of the x and y values to check if the point is a solution to the inequality.

Point A: x = 1, y = 7

7 > |1| + 5

7 > 1 + 5

7 > 6

This is a true statement, which means that this point is a solution to the inequality. We don't have to check any more points since we have found our answer.

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Answer:

∠D = ∠E = 46°  

Step-by-step explanation:

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7 0
3 years ago
The time t required to drive a certain distance varies inversely with the speed r. if it takes 4 hours to drive the distance at
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\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad  y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------

\bf \stackrel{\textit{time \underline{t} required to drive a certain distance varies inversely with the speed \underline{r}}}{t=\cfrac{k}{r}}
\\\\\\
\textit{we also know that }
\begin{cases}
t=4\\
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\end{cases}\implies 4=\cfrac{k}{35}\implies 4(35)=k
\\\\\\
140=k\qquad therefore\qquad \boxed{t=\cfrac{140}{r}}
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Answer:

a

Step-by-step explanation:

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