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MatroZZZ [7]
2 years ago
9

What's the length of AB?​

Mathematics
1 answer:
Nastasia [14]2 years ago
8 0
Use the pythagorean theorem to solve this: a^2 + b^2 = c^2.
You already have a and b which are 3 and 4. Square them up and you will get 9 + 16 = c^2.
Add.
25 = c^2
Lastly, square root both sides.
5 = c
The length of AB is 5.
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Solve the two step equations
disa [49]

Hello!

1) -3x - 4 = 23

-3x = 23 + 4

-3x = 27

x = 27 : (-3)

x = -9

2) x/2 - 12 = -4

x - 24 = -8

x = -8 + 24

x = 16

3) 6a + (-1) = 10

6a - 1 = 10

6a = 10 + 1

6a = 11

a = 11 : 6

a = 11/6

4) -(x + 2) = 12

x + 2 = -12

x = -12 - 2

x = -14

5) 7a + 12 = 10

7a = 10 - 12

7a = -2

a = -2 : 7

a = -2/7

6) -4(a + 2) = 12

a + 2 = -3

a = -3 - 2

a = -5

Good luck! :)

7 0
3 years ago
I will mark brainliest please helppp
Ilia_Sergeevich [38]

Step-by-step explanation:

The x intercept is the point that touches the x axis

The y-intercept is the point that touches the y-axis

So...

The x-intercept = (0, -40)

The y-intercept = (0, 15)

5 0
3 years ago
What is the measure of the unknown angle?
bulgar [2K]
A. 145
EXPLANATION:
There are 2 angles in the picture.
Both angles mist add up to 180
Simply do 180 - 35 = 145.
Have a good day
8 0
3 years ago
Read 2 more answers
If m< DBG=58 and mDG =74 , find mGE
mestny [16]

Answer:

Option D: mGE = 190°

Step-by-step explanation:

From the property of angles of secant and tangent lines, we have:

DBG = (mGE - mDG)/2

(That is, the angle in point B is half the difference of the larger arc by the smaller arc defined by the lines)

So, we have that:

58 = (mGE - 74)/2

2*58 = mGE - 74

mGE = 116 + 74 = 190°

So we have that mGE is equal to 190°, correct option: D.

5 0
3 years ago
You join an Internet service. You get the first 5 hours for free, and then you pay $2 per hour. How many hours of Internet use,
alexgriva [62]
45 / 2 = 22.5

You can get 22.5 hours of Internet for 45$.
7 0
3 years ago
Read 2 more answers
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