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lesya [120]
3 years ago
15

Given that lines a and b are parallel and that m∠4 = 128°, find m∠7.

Mathematics
1 answer:
Mrrafil [7]3 years ago
6 0

Answer:

(depending on the picture) angle 7=128 or angle 7=52

Step-by-step explanation:

If it is parallel and a line is intersecting it (depending on where angle 4 and angle 7 is located) they are congruent or they are supplementary.

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dolphi86 [110]

Answer:

1. 6

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3. 4.6

4. 32

5. 34n = 306

6. 3/8

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
According to Ohm's law, the electric current I, in
atroni [7]

Answer:

4 ampers

Step-by-step explanation:

WHEN 12 VOLTS ARE APPLIED, THE CURRENT IS 4 AMPERES.

3 0
2 years ago
Match these similar triangles proof<br>​
AlekseyPX

Answer:

B

C

F

D

H

A

G

E

Step-by-step explanation:

Ok. They are trying to reconstruct the smaller looking triangle in the bigger triangle using angle A as the common angle.

The first statement is always the given.

Second they constructed line segment XY into the bigger triangle so that XY is parallel to BC.

Third, from the construction of the parallel lines we can now find corresponding angles that are congruent. This would be the use of F.

Since we have all three angles in triangle AXY and triangle ABC, then the construction of the smaller triangle we made inside the bigger triangle is similar to the bigger triangle. So we have the triangles are similar. You could say E or D here in my opinion. This is choice D.

Fifth the creation of those fractions of sides being equal comes from us knowing the corresponding sides of similar triangles are proportional. This is choice H.

Things looked cut off for the sixth thing so I can't fully read it, but it is possible a substitution has occured.

The seventh thing is a congruence statement which can be proven by a congruence postulate. The only one listed is SAS. So that is G.

The last thing, since the triangle construction is congruent to the smaller triangle then we know the smaller triangle is also similar to the bigger triangle since the bigger one is also similar to the construction we made. I really think E and D is interchangeable. Choice E goes here.

7 0
3 years ago
Edna earns $6 for each hour of yard work. How many hours in all will it take Edna to earn<br> $42?
madreJ [45]

Answer:

42 divided by 6=7 so 7 hrs

Step-by-step explanation:

its probalay wrong im not smart lol

5 0
2 years ago
Read 2 more answers
Choose the equations that are not linear equations. -x - y = 2 x 2 + y = 4 - y 3 = 1 x = 5
NeX [460]
X² + y = 4 and -y³ = 1x -5 are not linear equation because they contain a variable with a exponents. These types of equation are called quadratic equations. 
5 0
3 years ago
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