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Luda [366]
2 years ago
7

Find the missing side. Round your answer to the nearest tenth.

Mathematics
1 answer:
monitta2 years ago
4 0

Answer:12.4

Step-by-step explanation:

hyp=16,opp=x

sin 51°=\frac{x}{16}

cross multipy

sin 51° x 16 = x

x=0.7771 x 16

x≅12.4

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Need Help ASAP
iren2701 [21]
The sum of the interior angles of a triangle is 180 degrees

2x-9+3x+x+3=180
6x-6=180
6x=186
x=31

A=2(31)-9
A=62-9
A=53
8 0
3 years ago
1. round the result to 2 decimal places. -0.9x+2.8=4.1
lora16 [44]
1. <span>-0.9x+2.8=4.1
First subtract 2.8 from both sides.
-0.9x = 1.3
Now divide both sides by -0.9.
x = -1.4444..
This can be rounded to -1.44
</span><span>c) -1.44

2. Jordan has 650 pennies. He'll give 85 to his brother and split the rest with his sister.
</span>d) 85+2x=650
5 0
3 years ago
For the given linear function, what are the slope and y-intercept?
asambeis [7]

Answer:

The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.

Step-by-step explanation:

I had this question not to long ago and got it right

4 0
3 years ago
Find the perimeter and total area of the composite shape shown below. All measurements are given in inches. Use pi equals 3.14 i
seropon [69]

Answer:

Perimeter = 65.12 in

Area = 292.48 in^2

which agrees with the second answer choice

Step-by-step explanation:

The perimeter is going to be the addition of the sides of the rectangle external to the composite figure ( 12 + 16 + 12 = 40) PLUS the length of half of the circumference or radius 8 inches  (which is pi * radius = 3.14 * 8 = 25.12 in)

Then the total perimeter is:

Perimeter = 40 in + 25.12 in = 65.12 in

The are is going to be the area of the rectangle (12 * 16 = 192 square inches) PLUS the area of the semicircle of radius 8 in (pi *radius^2 /2 = 100.48 square inches).

Therefore the total area is:

Area = 192 + 100.48  = 292.48 in^2

7 0
2 years ago
2.9 x 10^5 + 8.7 x 10^5
LiRa [457]

Answer:

So this is scientific notation what you do is

2.9x10^5 so you put however many zeros the is powered to 10. See there is a 5 It has to be behind or in front of the decimal you might be saying how do you know if its behind or in front well negative is in front and positive is behind .

<u><em>290,000 </em></u>there was a number already behind the decimal so there you go 5 number behind the decimal.  

Same for the second one

<u><em>290,000</em></u><em>  </em><u><em>870,000</em></u> is your answers so now you add hem together

<em><u>1,160,000 is your final answer </u></em>

Step-by-step explanation:

3 0
3 years ago
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