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3 years ago

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:

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:

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

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3 years ago

Use substitution to solve the system of equations. x-2y=1 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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3 years ago

What is the slope of the line? As soon as possible please !!

mixer [17]

Answer:

$m=\frac{-8}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

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

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-1, 4)

Point (4, -4)

Step 2: Find slope m

Substitute [Slope Formula]: $m=\frac{-4-4}{4+1}$
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5 0

2 years ago

Pleasseeeee helpppppppppppppp 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!

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2 years ago

Y = mx + b

Yuki888 [10]

The last option, the y-intercept.

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3 years ago