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sdas [7]
3 years ago
14

?÷(−7)=(−4) what is the missing number

Mathematics
2 answers:
Degger [83]3 years ago
7 0

Answer:

? = 28

Step-by-step explanation:

Isolate the ?. Let "?" = x

x/(-7) = (-4)

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Multiply -7 to both sides:

(x/-7)(-7) = (-4)(-7)

x = -4 * -7

Simplify. Note that when you are multiplying or dividing two negative numbers, you will have a positive answer:

x = -4 * -7 = 4 * 7 = 28

28 is your answer.

~

Hunter-Best [27]3 years ago
3 0

Answer:

The answer is 28.

Step-by-step explanation:

To find the solution, you must multiply the other two numbers together to find the original number that is divided.

-7 * -4 = 28 Answer

28/-7 = -4

Hope this helps!

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Your estimate that the length of a board is 24 feet. The actual length of the board is 22 feet. Find the percent error.
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Answer:

9.09%

Step-by-step explanation:

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To convert a decimal to a percent, multiply the decimal by 100%

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5 0
2 years ago
PLEASE HELP ASAP!!!! 15 POINTS! AND I WILL GIVE BRAINLIEST!!!!
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Step-by-step explanation:

7 0
2 years ago
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Fix the inequality below to correctly show the domain of<br> the function.
Nataliya [291]

Answer:

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6 0
2 years ago
Solve for m. 99pt reward and brainliest
Kamila [148]
-37m = 12

plug in the numbers:

(-28)(-37) ≠ 12

(-26)(-37)≠12

(26)(-37)≠12

(28)(-37) ≠ 12


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8 0
3 years ago
Find the exact value of sin (arccos (3/5)). For full credit, explain your reasoning.
zloy xaker [14]
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</span></span></span>The inside trig function is <span><span>arccos<span>(<span>3/5</span>)</span></span></span>, which means <span><span><span>cos<span>(x)</span></span>=<span>3/5</span></span></span>. Comparing <span><span><span>cos<span>(x)</span></span>=<span>Adjacent/Hypotenuse</span></span></span> with <span><span><span>cos<span>(x)</span></span>=<span>3/5
</span></span></span>
Find <span><span>Adjacent=3</span></span> and <span><span>Hypotenuse=5.
</span></span>Then, using the Pythagorean theorem, find <span><span>Opposite=?
</span></span>a² = c² - b²
a² = 5² - 3² = 25 - 9 = 16
a = √16 = 4

<span><span>Adjacent=3</span></span><span><span>Opposite=4</span></span><span><span>Hypotenuse=5
</span></span><span>
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sin(x) = 4/5 </span>
6 0
3 years ago
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