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yanalaym [24]
3 years ago
11

ANSWER PLEASE

Mathematics
2 answers:
shusha [124]3 years ago
7 0

Answer: cos R and sin N

Step-by-step explanation:

tiny-mole [99]3 years ago
6 0
The easiest way to get this problem correctly is by calculating the sines and cosines of all the angles in the choices then choosing the correct choice.

sin <span>∠MQP = sin(56) = 0.829
cos </span><span>∠N = cos(56) = 0.559
sin </span><span>∠R = sin(34) = 0.559
sin </span><span>∠N = sin(56) = 0.829
cos </span><span>∠N = cos(56) = 0.559
sin </span><span>∠M = sin(90) = 1
cos </span><span>∠R = cos(34) = 0.828

Based on these findings, it is obvious that sin </span>∠MQP is equal to cos ∠R and sin <span>∠N.
Thus, the correct choice is "d".</span>
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I cannot understand this can you guys help
igor_vitrenko [27]
The mean is not the same thing as median
mean=78+81+85+87=331
mean=331/4=82.75
median is the middle number, but you have a par set of numbers, so your median will be the middle numbers 78,81,85,87 , which are 81+85=166, 166/2=83
83 is your median
5 0
3 years ago
Find the slope of the line below . Enter your answer as a fraction or decimal. Use a slash mark ( / ) as the fraction bar if nec
natali 33 [55]

Answer:

1/5

Step-by-step explanation:

We can find the slope of a line given two points by using the following

m = ( y2-y1)/(x2-x1)

    = ( 3-0)/(7 - -8)

    = ( 3-0)/(7+8)

     = 3/15

    = 1/5

7 0
3 years ago
Read 2 more answers
Need help, please explain the answer
Mkey [24]

Answer:

Step-by-step explanation:

U have to multiply 49 by 49 and then subtract 9

4 0
3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description. x2 - 5x + 7 = 0
miv72 [106K]
The general form of a quadratic (second degree) equation is 

a x^{2} +bx+c=0, where

D= b^{2}-4ac is called the Discriminant.


The Discriminant determines how many roots the equation will have as follows:

i)  if D>0, the equation has 2 roots.
ii) if D=0, the equation has 1 double root.
iii) if D<0, the equation has no roots.


In our equation, x^{2} -5x+7=0, a=1, b=-5, c=7

so the discriminant is D=(-5)^2-4*1*7=25-28<0


Thus the equation has no roots.


Remark: the equation has no roots in the Real numbers, but it has 2 roots in a larger set of numbers to be discussed in the future, the Complex numbers.
5 0
3 years ago
QUICK PLZ WHAT IS THIS EXPLAIN PLZ
Olenka [21]
I hope this Helps you

4 0
3 years ago
Read 2 more answers
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