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Natali5045456 [20]
3 years ago
5

Please help me and can someone explain how to do this stuff?

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

D

Step-by-step explanation:

The angles are congruent meaning that 5x-70 must equal 105

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Can someone help me find x
Viefleur [7K]

Answer:

Rounded to the nearest tenth: x=5.7 in

Rounded to the nearest hundredth: x=5.74 in

Step-by-step explanation:

We have a right triangle with a given angle of 35°. We also have the opposite side of that angle, x, and its hypotenuse 10 in. To find x, we are using the trig function that relates  the opposite side with the hypotenuse; in other words, the sine trig function.

sin\alpha =\frac{opposite}{hypotenuse}

sin(35)=\frac{x}{10}

x=10sin(35)

x=5.735764364

Rounded to the nearest tenth: x=5.7 in

Rounded to the nearest hundredth: x=5.74 in

4 0
2 years ago
Explain the steps needed to determine the value of the expression shown below be sure to provide the correct value of the expres
inn [45]

Answer:

-3/2

Step-by-step explanation:

In the picture attached, the complete question is shown.

The expression is:

\frac{ \frac{1}{2} }{ \frac{-2}{5}} + \frac{-1}{4}

You can rewrite the first term, expressing the division as a multiplication, that is, inverting the fraction in the denominator, as follows:

\frac{1}{2} \times \frac{-5}{2}+ \frac{-1}{4}

\frac{-5}{4} + \frac{-1}{4}

The addition of a negative fraction is simply the subtraction by that fraction:

\frac{-5}{4} - \frac{1}{4}

\frac{-5 - 1}{4}

\frac{-6}{4}

Which can be simplified dividing by two both numerator and denominator:

\frac{-3}{2}

8 0
3 years ago
Order the numbers from least to greatest 15, 20, -13, -20, -9, 7
Karo-lina-s [1.5K]
-20, -13, -9, 7, 13, 20
5 0
3 years ago
Read 2 more answers
Can anyone help ASAP , thank you .
Phoenix [80]

Multiply it out.

I believe the answer would be 15x^2 - 20x.

However, functions is not my forte.

Soooo

yeah

3 0
2 years ago
Read 2 more answers
Ky wants to buy three shirts, which were originally priced at $49.96 each. The store will discount the price of the 3rd shirt by
frozen [14]

9514 1404 393

Answer:

  $44.49

Step-by-step explanation:

The total cost before tax will be ...

  $49.96 +49.96 + 0.50(49.96) = $124.90

With tax added, the cost is ...

  $124.90 × 1.071 = $133.77

Then the average cost per shirt for the 3 shirts is ...

  $133.77/3 = $44.59

The mean cost of a shirt is $44.59.

5 0
2 years ago
Read 2 more answers
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