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worty [1.4K]
3 years ago
13

Find the measure of angle R to the nearest tenth

Mathematics
2 answers:
Sonbull [250]3 years ago
8 0
The angles add up to 180°
59+39=98
180-98=82°
Alex3 years ago
4 0

Answer:

b.

Step-by-step explanation:

I am going to use the sin law to find the angle R. Applying sin law we have that

\frac{sin(90)}{58} = \frac{sin(R)}{37}, then

sin(R) = \frac{sin(90)*37}{58} = \frac{37}{58} = 0.6379

R = sin^{-1}(0.6379) = 39.63\textdegree = 39.6\textdegree.

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A book store has twice as many history books as science books. The store has 81 history and science books altogether how many of
atroni [7]

let h= history books

science books = s

h=2s  there are 2 times as many history as science so to get them equal we double the science

h+s=81    there are 81 total history and science books

2s+s=81   substitute 2s for h in the above equation

3s = 81   combine like terms

s = 27

There are 27 science books

h=2s

h=2(27)

h=54

there are 54 history books

4 0
3 years ago
What is f(5) if f(1) = 3.2 and f(x + 1) = (f(x))?
scoray [572]

Answer:

The value of f(5) is 3.2.

Step-by-step explanation:

It is given that f(1) = 3.2 and

f(x+1)=f(x)

Substitute x=1 in the above equation.

f(1+1)=f(1)

f(2)=3.2

Substitute x=2 in the given equation.

f(2+1)=f(2)

f(3)=3.2

Substitute x=3 in the given equation.

f(3+1)=f(3)

f(4)=3.2

Substitute x=4 in the given equation.

f(4+1)=f(4)

f(5)=3.2

Therefore the value of f(5) is 3.2.

5 0
3 years ago
Read 2 more answers
Hell which one is true
nalin [4]

Answer:

sjshdsedhbehbeh i dont know

Step-by-step explanation:

5 0
3 years ago
Examine whether each of the following pair of lines AB and CD are parallel or not​
MatroZZZ [7]

Answer:

Yes

Step-by-step explanation:

For lines to be parallel alternate interior angles should be equal

Angle GHD=180-angle FHD

=180-115 = 65°

Therefore angle AGH = angle GHD

So lines are parallel

3 0
2 years ago
Read 2 more answers
What is the length of the line segment whose endpoints are A(-1,9) and B(7,4) in the simplest radical form?
monitta

length : \sf \sqrt{89}

Explanation:

use the distance formula : \sf \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

  • using the formula:

\sf \rightarrow \sf \sf \sqrt{(7--1)^2+(4-9)^2}

\sf \rightarrow \sf \sf \sqrt{(8)^2+(-5)^2}

\sf \rightarrow \sf \sf \sqrt{64+25}

\sf \rightarrow \sf \sf \sqrt{89}

8 0
2 years ago
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