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3 years ago

Help please it's math

Mathematics

1 answer:

qwelly [4]3 years ago

5 0

A) is the correct answer

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Please help me out :)

arlik [135]

Answer:

$\frac{\sqrt{17} }{7}$

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = $\sqrt{1-cos^2x}$

Note that ( $\frac{4\sqrt{2} }{7}$ )² = $\frac{32}{49}$

sinΘ = $\sqrt{1-(32/49)}$

= $\sqrt{\frac{17}{49} }$ = $\frac{\sqrt{17} }{7}$

5 0

3 years ago

Solve for x. I don't know how to do this. Please help.

kompoz [17]

X=15

EXPLANATION:

5x+4+5x+11+x=180

11x+15=180
-15 -15

11x=165
— ——
11 11

x=15

7 0

2 years ago

Jenny rides her bike one mile to school every day. She always stops at Claire’s house on her way. Claire lives ¼ of a mile from

Snezhnost [94]

Answer:

to get our answer, we multiply the two fractions together. 6/8× 3/5= 3/5 or 0.6

hope this helps! mark me brailyest please :D

5 0

2 years ago

Read 2 more answers

Does the equation 2x-7=5+x have exactly one solution

Goshia [24]

Answer:

Step-by-step explanation:

2x - 7 =5 +x

2x - x =5 +7

x =12 (one solution)

4 0

3 years ago

Find the value of x, question and choices attached above

Levart [38]

Answer:

Step-by-step explanation:

Look at the picture.

The lines l and m are parallel, therefore alternate interior angles are congruent.

Therefore $\beta=50^o$

Supplementary angles add up to 180°.

Therefore

$(5x-16)+\theta=180$ add 16 to both sides

$5x+\theta=196$ subtract 5x from both sides

$\theta=196-5x$

We know: the sum of the triangle angle measures is 180°.

Therefore we have the equation:

$50+2x+196-5x=180\\\\-3x+246=180\qquad\text{subtract 246 from both sides}\\\\-3x=-66\qquad\text{divide both sides by (-3)}\\\\x=22$

8 0

3 years ago