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Natali5045456 [20]
3 years ago
14

Help me please. I dont remember this and didn't see itnon my state testing yesterday. This isnt a test, just a study guide.

Mathematics
1 answer:
RideAnS [48]3 years ago
8 0

Answer:

x = 25

Step-by-step explanation:

Assuming Angle A, B and C are angles in a triangle.

∠A + ∠B + ∠C = 180º

(2x - 20) + (120) + (x + 5) = 180

2x - 20 + 120 + x + 5 = 180

3x + 105 = 180

3x = 75

x = 25

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A mixed number is 1 3/4.
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3 years ago
Write the equation in slope-intercept form.<br> 5x +<br> 5y = 35
vekshin1

Answer:

y = -x + 7

General Formulas and Concepts:

<u>Pre-Algebra</u>

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

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  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define</u>

[Standard Form]   5x + 5y = 35

<u>Step 2: Rewrite</u>

<em>Find slope-intercept form.</em>

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  2. Divide 5 on both sides:                         y = -x + 7
4 0
3 years ago
Help plz ill give extra points
Alecsey [184]

Answer: Point B

Point B is above (-2, -1)

5 0
3 years ago
Read 2 more answers
I need help with 4 and 5
krok68 [10]
4)
area of figure = bh = 8x10 = 80
same as a trapezoid have base 6 and 14 and height 8
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so answer is C
a trapezoid with bases of 6 mm and 14 mm and a height of 8 mm

5)
area of original figure A = bh = 8 x 10 = 80
if double h = 16 and b = 20 then A = 16 x 20 = 320
the area is quadrupled.

answer is C.
The area is quadrupled
3 0
3 years ago
What is the measure of the missing angle in the triangle I ready
Westkost [7]

I don't know how to answer this because i don't know the other numbers. But I can tell you to find a missing angle all the angles must add up to 180. So just add the other numbers and subtract the answer from 180 then you should get an answer.

3 0
3 years ago
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