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inn [45]
2 years ago
15

Help me!! 16 points for this

Mathematics
2 answers:
aksik [14]2 years ago
8 0
The answer will be 71.
Rudik [331]2 years ago
6 0

Answer:

x = 16°

Step-by-step explanation:

Because x° and another angle adds up to a 90° angle, or right angle, that means x will be equivalent to the difference between 90° and 19°. So x = 90 - 19 = 71°.

You might be interested in
Given that A=27, B=43 and c=17, solve triangle ABC to the nearest hundredth
katrin2010 [14]
When we are given 3 sides, we try to solve the angles first by using the
law of cosines
cos (A) = [b^2 + c^2 - a^2] / (2 * b * c)
cos (A) = [43^2 + 17^2 -27^2] / (2 * 43 * 17)
cos (A) = [1,849 + 289 -729] / <span> <span> <span> 1,462
</span></span></span>cos (A) = 1,409 / 1,462
cos (A) = <span> <span> <span> 0.96374829001368
Angle A = 15.475

Now that we have one angle, we next can use the
Law of Sines
sin(B) / side b = sin(A) / side a
sin(B) = sin(A) * sideb / sidea
</span></span></span><span>sin(B) = sin(15.475) * 43 / 27
</span><span>sin(B) = 0.26682 * 43 / 27
sin (B) = </span><span>0.424935555555</span>
Angle B = 25.147 Degrees
Remember the arc sine (<span>0.424935555555) also equals </span> <span> <span> <span> 154.85

</span></span></span>Finally, calculating the third angle is quite easy
Angle C =  180 - Angle (A) - Angle(B)
Angle C =  180 - 15.475 - 154.85
Angle C =  9.675

Source:
http://www.1728.org/trigtut2.htm


6 0
2 years ago
Round 340 to the nearest hundred
Marta_Voda [28]
The number is 300, the number is 300 hundred because numbers 1-4 you round down, numbers 5-9 you round up.
3 0
3 years ago
About 3,500 different species of mosquitoes exist in the world if a mosquito traveled 10.8 miles at top speed in 99 hours, how f
Shalnov [3]
Depending upon the species, mosquitoes can fly at about 1 to 1.5 miles per hour.
7 0
3 years ago
Sorry for tabs!! I need help in this. Please help me.
telo118 [61]

Answer: 11 more i think

Step-by-step explanation:

8 0
3 years ago
Find the value of x and y
elena55 [62]

Answer:

x=50 and y=20

Step-by-step explanation:

I hope this helped!

3 0
2 years ago
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