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Mars2501 [29]
3 years ago
7

Which is an expression to find the speed in m/s?

Mathematics
2 answers:
Semenov [28]3 years ago
6 0
The correct answer here for this question would be A. 
hope that this helps you!! =)
NNADVOKAT [17]3 years ago
4 0
The correct answer is A 40/10

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1 + 5sin^2x= 7sin^2x solve trig equation. Can you show me how to solve this trig equation?
pantera1 [17]

Answer: x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}

Step by step:

1 + 5\sin^2x= 7\sin^2x\\\sin^2 x\rightarrow z\\1 + 5z = 7z\\2z = 1\\z = \frac{1}{2}\implies \sin^2 x = \frac{1}{2}\\|\sin x| = \frac{1}{\sqrt{2}}\\\sin x = \pm\frac{1}{\sqrt{2}}=\pm\frac{\sqrt{2}}{2}\\\implies x = \frac{\pi}{4}\pm k\frac{\pi}{2}\,\,\,\,\,\,k=\{0,1,2,...\}

(Used a table of common angles)

8 0
3 years ago
PLEASE HELP ME<br> Find the total surface area of the figure shown.
otez555 [7]

Answer:

I think it's C but I might be

Step-by-step explanation:

8 0
3 years ago
13 + 11s = -15 + 8s − 20
koban [17]

<em>Answer,</em>

<em><u>S = -16</u></em>

<em>Explanation,</em>

<em><u>Step 1: Simplify both sides of the equation.</u></em>

<em>13 + 11s = − 15 + 8s − 20</em>

<em>13 + 11s = − 15 + 8s + − 20</em>

<em>11s + 13 = (8s) + (</em><em><u>− 15</u></em><em> + </em><em><u>− 20</u></em><em>) </em><em>(Combine Like Terms)</em>

<em>11s + 13 = 8s + − 35</em>

<em>11s + 13 = 8s − 35</em>

<em><u>Step 2: Subtract 8s from both sides.</u></em>

<em>11s + 13 − 8s = 8s − 35 − 8s</em>

<em>3s + 13 = − 35</em>

<em>Step 3: Subtract 13 from both sides.</em>

<em>3s + 13 − 13 = − 35 − 13</em>

<em>3s = − 48</em>

<em><u>Step 4: Divide both sides by 3.</u></em>

<em>3s/3 = −48/3</em>

<em>s = -16</em>


<u><em>Hope this helps :-)</em></u>


3 0
3 years ago
Evaluate the expression when x = 4 and y=-5.<br> -5y+x
Maru [420]

Answer:

29

Step-by-step explanation:

<u>Step 1:  Set x to 4 and set y to -5</u>

<u />-5y + x

-5(-5) + (4)

25 + 4

29

Answer:  29

8 0
3 years ago
Read 2 more answers
Ignore my answers but pls solve and be correct
KiRa [710]

Answer:

The first one is 60 and the second one is 12

Step-by-step explanation:

5*12=60    6*12=72     72-60=12

7 0
2 years ago
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