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Anna007 [38]
3 years ago
5

Find the measure of each angle indicated. Round to the nearest tenth.

Mathematics
1 answer:
Mumz [18]3 years ago
4 0

Answer:

missing angle = 67.8 degrees

Step-by-step explanation:

cos-1 = \frac{adjacent}{hypotenuse}

cos-1 = \frac{5.3}{14}

cos-1 = 0.378571428

67.754 = 67.8

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Solve the equation given in Exercise 15 with and without using the LCD of the fractions. Are your answers the same?
Colt1911 [192]
Without LCD :
1/2(4x + 6) = 1/3(9x - 24)
2x + 3 = 3x - 8
2x - 3x = -8 - 3
-x = - 11
x = 11

with LCD :
1/2(4x + 6) = 1/3(9x - 24) ...multiply by 6
3(4x + 6) = 2(9x - 24)
12x + 18 = 18x - 48
12x - 18x = -48 - 18
-6x = - 66
x = -66/-6
x = 11

Yes, the answers are the same :)

3 0
3 years ago
If x=25 when y=15, find x when y=24
mars1129 [50]

Answer:

\frac{24 \times 25}{15}  = 40

7 0
3 years ago
1. A teacher asked the students to create a formula for the sequence 5, 8, 11, 14, ...
SCORPION-xisa [38]

Good evening ,

Answer:

Is his formula correct and how do you know : <em>Yes</em>

Is it an explicit or recursive formula : <em>explicit </em>

Step-by-step explanation:

an = a1 + (n-1)r

a1 = 5

r = 8-5 = 3

Then an = 5 + 3(n-1).

:)

5 0
3 years ago
How many solutions does the graphed system of equations have:
Alex17521 [72]

Answer:

since the lines don't intersect there is no solution.


8 0
3 years ago
The side of a square is 11.2 cm. what is the length of the diagonal
Snowcat [4.5K]
You can work out the diagonal by using Pythagoras theorem. (a^2 = b^2 + c^2)

As it is a square, all 4 sides are the same so it would be:
11.2^2 + 11.2^2 = diagonal^2
250.88 = diagonal^2
Square root both sides to get what the diagonal is equal to.
diagonal is 15.8 cm
3 0
3 years ago
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