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Marina CMI [18]
4 years ago
15

PLEASE HELP! (100 points)

Mathematics
2 answers:
Lunna [17]4 years ago
7 0

Answer:

A) 100°

B) 80°

C) 100°

Step-by-step explanation:

Angle A = 180 - 80 = 100°

Supplementary angles

Angle B = 80°

Corresponding angles

Angle C = 180 - 80 = 100°

Supplementary angles

rjkz [21]4 years ago
4 0

Answer: m<a = 180 ° - 80° = 100°

m < b = 80 °

m < c = 180 ° - 80° = 100°

Step-by-step explanation:

For a) they are supplementary angles

For b) they are corresponding angles

For c) they are supplementary angles

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I'm so bad at math please anyone help :(
kondaur [170]
It should be d. , Because if you take the equation 3x+y=9, and make it slope intercept form, it would be y= -3x+9. -3 is the slope, and 9 is the y intercept. D is the answer.
6 0
3 years ago
How do you do this question please help me
Varvara68 [4.7K]
Well then you just do 15-6 right?


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8 0
4 years ago
Please help me with this problem
mote1985 [20]
To evaluate this expression, we simply plug the value of the variable into the expression and solve.

Since m = -4, plug a -4 in for m every time the m appears in the expression.

So we have (-4)^2 + 6(-4) + 3.

Start by simplifying the exponent.

(-4)^2 is 16.

Now multiply.

A positive times a negative is a negative.

So 6(-4) is -24.

So we have 16 + 24 + 3 which is 43.
7 0
3 years ago
2. Find the number of distinct triangles with c=11,b=7,B=18 a.0 b.1 c.2 d. cannot be determined
jok3333 [9.3K]
Answer: Choice C) 2

----------------------------------------------

Explanation:

Using the law of sines, we get
sin(B)/b = sin(C)/c
sin(18)/7 = sin(C)/11
0.0441452849107 = sin(C)/11
11*0.0441452849107 = sin(C)
0.4855981340177 = sin(C)
sin(C) = 0.4855981340177
C = arcsin(0.4855981340177) or C = 180-arcsin(0.4855981340177)
C = 29.0516679549861 or C = 150.948332045013
There are two possibilities for angle C because of something like sin(30) = sin(150) = 1/2 = 0.5

Those approximate values of C round to
C = 29.05 and C = 150.95

If C = 29.05, then angle A is
A = 180-B-C
A = 180-18-29.05
A = 132.95
Making this triangle possible since angle A is a positive number

If C = 150.95, then angle A is 
A = 180-B-C
A = 180-18-150.95
A = 11.05
making this triangle possible since angle A is a positive number

There are two distinct triangles that can be formed. 
One triangle is with the angles: A = 132.95, B = 18, C = 29.05
The other triangle is with the angles: A = 11.05, B = 18, C = 150.95
The decimal values are approximate
7 0
3 years ago
What is the answer to this
nevsk [136]
This is what I got I hope it helps

5 0
3 years ago
Read 2 more answers
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