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sashaice [31]
3 years ago
9

PLZ HELP U WILL GET BRAINLIEST Solve for X:

Mathematics
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

x=17

Step-by-step explanation:

7x+15=4x+66

3x=51

x=17

Bess [88]3 years ago
8 0

Answer:

17

Step-by-step explanation:

7x + 15° =  4x + 66° (vertically opposite angles are equal)

7x - 4x = 66 - 15

3x = 51

x = 51/3

x = 17

hope it helps you^^

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Find the volume of the cone radius is 7 and height is 12
balandron [24]

Answer:

615.75units^3

Step-by-step explanation:

V=\pi r^2\frac{h}{3} \\=\pi 7^2\frac{12}{3} \\=615.75units^3

6 0
3 years ago
Use substitution to solve the system of equations.<br> x-2y=1<br> 3x-6y=3
Ivahew [28]
Change first equation
x - 2y = 1
add 2y to both side
x = 2y + 1
Plug into second equation
3(2y+1) - 6y = 3
Distributive property
6y + 3 - 6y = 3
y = 0, plug into first equation
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7 0
3 years ago
What is the slope of the line? <br><br> As soon as possible please !!
mixer [17]

Answer:

m=\frac{-8}{5}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-1, 4)

Point (4, -4)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute [Slope Formula]:                    m=\frac{-4-4}{4+1}
  2. Subtract/Add:                                          m=\frac{-8}{5}
5 0
2 years ago
Pleasseeeee helpppppppppppppp <br> hurryyy please
Arlecino [84]
So to answer all of them ( I don’t know if you want that it Imma do it anyways). For the first question: Name a radius - QR. For the second question: Name a diameter - NR. For question three: Name a chord - OP. For the last question: If the length of QS is 8 units, what is the length of NR: Since QS is a radius than the length of NR would be 16. Hope this helps!
4 0
2 years ago
Y = mx + b
Yuki888 [10]
The last option, the y-intercept.
5 0
3 years ago
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