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2 years ago

The measures of two complementary angles are m∠ 1=4x+2 and m∠ 2=2x+10 . Find x.

Mathematics

1 answer:

Morgarella [4.7K]2 years ago

7 0

The answer is 24 if I am correct

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Solve the equation x2 = 10.

MatroZZZ [7]

Answer:

$\large\boxed{x=-\sqrt{10}\ or\ x=\sqrt{10}}$

Step-by-step explanation:

$x^2=10\iff x=\pm\sqrt{10}$

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2 years ago

What is the cosine of angle F A. 4/5 B. 3/4 C. 5/4 D. 3/5

saveliy_v [14]

Answer: option D

Step-by-step explanation:

Remember the cosine identity:

$cos\alpha=\frac{adjacent}{hypotenuse}$

Given the right triangle DFE shown in the image, you can identify that the adjacent side and the hypotenuse for the angle F of this triangle are:

$adjacent=15\\hypotenuse=25$

Now you can substitute values into $cos\alpha=\frac{adjacent}{hypotenuse}$ and then reduce the fraction.

THerefore you get: $cos(F)=\frac{15}{25}\\\\cos(F)=\frac{3}{5}$

6 0

2 years ago

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Solve. x^2+ 5x-2=0 SoS plz Quadratic Equation

IRISSAK [1]

Answer:

−5/2 ± √33 /2

3 0

3 years ago

A television newscaster from a 24-hour news station wants to estimate the number of hours per day its viewers watch

topjm [15]

Answer:

This isn't the best worded question but from what I understand a larger sample size decreases the margin of error. If he would like a more accurate answer a larger sample size of the viewers will give more accurate answers.

Step-by-step explanation:

4 0

2 years ago

Need help please answer

leonid [27]

Answer:

the answer is 4-x^2

Step-by-step explanation:

-2x

and 2x cancel out

3 0

2 years ago

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