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astra-53 [7]
3 years ago
7

PLEASE HELP!!!!

Mathematics
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

1. T =34

2.143 =exterior A

Step-by-step explanation:

The sum of the angles in a triangle is 180 degrees

T+H+E =180

T + 107+39 = 180

Combine like terms

T +146 = 180

Subtract 146 from each side

T +146-146 = 180-146

T =34

The exterior angle is the sum of the opposite interior angles in a triangle.

B+T =exterior A

66 +77 = exterior A

143 =exterior A


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Is 4x+2y=20 and y= -2 + 10 equavilent?
Sergio039 [100]

Answer:

yes, they are equivalent

Step-by-step explanation:

solve the first equation for 'y' by subtracting 4x from each side, then dividing each side by 2

2y = -4x + 20

y = -2x + 10

3 0
3 years ago
Solve:<br> a. 5y – 3 = – 18<br> b. -3x – 9 = 0<br> c. 4 + 3(z - 8) = -23<br> d. 1 – 2(y – 4) = 5
oksian1 [2.3K]

Answer:

a. y = -3

b. x = -3

c. z = - 1

d. y = -7

Step-by-step explanation:

a. 5y - 3 = - 18

5y = -18 +3

5y = -15

y = -15/5

y = - 3

b. -3x - 9 = 0

-3x = 9

x = 9/-3

x = -3

c. 4 + 3(z-8)= -23

4 + 3z-24 = -23

3z - 20 = -23

3z = -23 + 20

3z = -3

z = -3/3

z = - 1

d. 1 - 2(y-4) = 5

1 - 2y + 8 = 5

9 - 2y = 5

-2y = 14

y = 14/-2

y = -7

3 0
3 years ago
Find a real number between -√9 and √25.<br> a.-4<br> b.1<br> c.-5<br> d.6
Aleonysh [2.5K]

Answer:

-5 is the answer

Step-by-step explanation:

c is the answer

3 0
2 years ago
Read 2 more answers
If f(x)=5x-2 and g(x)=2x+1, find (f+g)(x)<br> A.7x-3 <br> B.3x-1 <br> C.7x-1 <br> D.4x-3
Gwar [14]

Answer:

(f+g)(x) = 7x -1  (Answer C)

Step-by-step explanation:

Rewrite these two functions, one above the other, for ease in adding:

f(x) = 5x - 2

+g(x) =2x + 1

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

(f+g)(x) = 7x -1


6 0
3 years ago
Can anyone help me on this and pls explain this
7nadin3 [17]
I can’t really see it well
3 0
3 years ago
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