2 years ago

Four times an angle is equal to half of its supplement. Find the measures of both angles.

Mathematics

1 answer:

denis-greek [22]2 years ago

4 0

Answer:

The bigger angle is 144 degrees and the smaller one is 36 degrees

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At 8:00 am the temperature outside was -12oF. By noon, the temperature has risen by 9 oF. What was the temperature at noon? (Jus

Dahasolnce [82]

Answer:

-3

Step-by-step explanation:

It would just be -12+9=-3.

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2 years ago

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4(b+2)=40 what is the value of b?

Katarina [22]

Answer:

Step-by-step explanation:

4b+8=40

4b=32

b=8

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2 years ago

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The winning baseball team scores 4 times as many runs as its opponent. The winning team scores 8 runs. Write an equation with an

Veronika [31]

Answer:

4x+8=x

Step-by-step explanation:

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2 years ago

Use the quadratic formula to solve for x. 4x2 +9x-1=0

insens350 [35]

Answer:

$x=\frac{-9\pm\sqrt{65} }{8}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Standard Form: ax² + bx + c = 0
Quadratic Formula: $x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

Step-by-step explanation:

Step 1: Define

4x² + 9x - 1 = 0

Step 2: Define variables

a = 4

b = 9

c = -1

Step 3: Find roots

Substitute: $x=\frac{-9\pm\sqrt{9^2-4(4)(-1)} }{2(4)}$
Exponents: $x=\frac{-9\pm\sqrt{81-4(4)(-1)} }{2(4)}$
Multiply: $x=\frac{-9\pm\sqrt{81-16} }{8}$
Subtract: $x=\frac{-9\pm\sqrt{65} }{8}$

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2 years ago

A seal diver dives when it sees a whale. The seal dives for 5 seconds at an average rate of 3.5 meters per second.

poizon [28]

Answer:

-3.5*5

Step-by-step explanation:

-3.5 added 5 times is this same thing as multiplying -3.5 times 5

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3 years ago