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kow [346]
3 years ago
10

The sum of 21 and a number is 30

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
5 0
The answer is 9, because you subtract 21 from 30 and you get 9. When you add 21+9 you get 30.
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Sec s = 1.6948
Anastaziya [24]
That'd be true only if the value of "s" is the exact same one for both
namely  if sec(s) = cos(s)
then solving for "s"
thus

\bf sec(s)=cos(s)\qquad but\implies sec(\theta)=\cfrac{1}{cos(\theta)}
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thus\cfrac{1}{cos(s)}=cos(s)\implies 1=cos^2(s)\implies \pm \sqrt{1}=cos(s)
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\pm 1=cos(s)\impliedby \textit{now taking }cos^{-1}\textit{ to both sides}
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cos^{-1}(\pm 1)=cos^{-1}[cos(s)]\implies cos^{-1}(\pm 1)=\measuredangle s
5 0
3 years ago
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schepotkina [342]
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7 0
3 years ago
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DedPeter [7]

Answer: C

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To determine whether the graph shown here

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The vertical line test tells us that if each x-coordinate on the graph corresponds to exactly one y-coordinate, then any vertical line that we draw on the graph should hit the graph at only one point.

For the graph show here, any vertical line that you draw with hit the graph at only one point which means it does pass the vertical line test.

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8 0
3 years ago
(a)/(2a)+(4)/(3a^(2)) ayuda por favor
Irina-Kira [14]

Answer:

3a^2+8/6a^2

Step-by-step explanation:

there ya go hope this helps

5 0
2 years ago
What is the greatest possible integer solution of the inequality 5.838x &lt; 24.124?
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I believe the answer would be C. 4. hope that helped
4 0
3 years ago
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