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steposvetlana [31]
3 years ago
10

Need help with this one, no clue how to solve this. If someone could explain what's going on like I'm 5 it'd be much appreciated

.
Find x.

Mathematics
1 answer:
GREYUIT [131]3 years ago
5 0

Question 10

cos 45 = x/10

cos 45(10) = x

(1/sqrt{2})*10 = x

10/sqrt{2} = x

Rationalize the denominator.

[10/sqrt{2}] • [sqrt{2}/sqrt{2}] = x

10•sqrt{2} ÷ 2 = x

5• sqrt{2} = x

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dezoksy [38]
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4 0
4 years ago
Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why
faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = \frac{y2 - y1}{x2 - x1}

Substitution

slope = \frac{4 - 2}{-1 - 4}

Simplification and result

slope = \frac{-2}{5}

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

4 0
4 years ago
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sertanlavr [38]
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3 0
3 years ago
What is the solution? 4p – 12 = 8 + 4p + 5p<br> a. 16<br> b. 6<br> c. -5<br> d. -4
ira [324]

Answer:

d. -4

Step-by-step explanation:

  • 4p – 12 = 8 + 4p + 5p
  • 4p – 12 = 8 + 9p
  • 4p – 9p = 8 + 12
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  • p = 20 ÷ (– 5)
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3 0
2 years ago
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He removed a card with dog.
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Total number of cards = 11 - 1 = 10

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7 0
3 years ago
Read 2 more answers
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