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3 years ago

Plss HELPP I neeed help on this question

Mathematics

1 answer:

Ganezh [65]3 years ago

4 0

Answer: 180 degrees

Step-by-step explanation:

The measure of the arc of a semicircle is 180 degrees.

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Which pair of numbers has a GCF of 3. 3and 18, 12 and 18, 8 and 24, 1 and 3

Alinara [238K]

3 and 18 | 12&18 GCF = 6; 8&24 GCF = 4; 1&3 GCF = 3

4 0

3 years ago

Solve the equation <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B8%7Dx%20-%2017%20%3D%2010" id="TexFormula1" titl

Annette [7]

Answer:

x = 72

Step-by-step explanation:

To solve for 'x', isolate it. This means to keep 'x' on one side of the equal sign, while moving the other numbers to the other side. The numbers on the other side will tell you what 'x' equals to.

When 'moving' a number to the other side, you cancel it out where it originally is by doing reverse operations. (Reverse operation pairs are addition/subtraction and division/multiplication). To keep an equation balanced, what you do to one side you have to do to the other.

$\frac{3}{8}x-17=10$ Keep 'x' on the left and move everything over.

$\frac{3}{8}x-17+17=10+17$ Add 17 to both sides. "-17" cancels out on the left.

$\frac{3}{8}x=27$ Simplified right side

$\frac{3}{8}x/\frac{3}{8}=27/\frac{3}{8}$ Because 3/8 originally multiplies with 'x', do the reverse: divide both sides by 3/8.

$x=27/\frac{3}{8}$ To divide a fraction, change to multiplication and flip the fraction's top and bottom numbers.

$x=27*\frac{8}{3}$ Combine the factors into one fraction.

$x=\frac{27*8}{3}$ Multiply 27 by 8 in the numerator.

$x=\frac{216}{3}$ Simplify the fraction by dividing top by bottom.

$x=72$ Final answer, solved for 'x'

5 0

3 years ago

Find the equation of a line that passes through the point (4,2) that is perpendicular to the line y = x. Show your work.

maria [59]

If it has to be perpedicular to y = x, then the slope has to be -1/x because perpedicular slope is the opposite reciprocal. Now plug what you know into the point slope formula.

y - 2 = -1/1 (x - 4)

***** Since -1/1 is the same as -1, it can be rewritten as -1. ****************

y - 2 = -1 (x - 4)

Now distribute -1 times x and -4.

y - 2 = -x + 4

Add 2 to both sides to get y by itself.

y = -x + 2

Your answer should be:

y = -x + 2

5 0

3 years ago

PLEASE HELP! If 2580 people watched one show and 2920 people watched another show. How many people need to watch the third show

kolezko [41]

Answer:

3480

Step-by-step explanation:

Set it up so it looks like this.

(2580 + 2930 + x )/3 = 3000 Combine the terms on the left

(5510 + x) / 3 = 3000 Multiply by 3

5510 + x = 9000 Subtract 5510

x = 9000 - 5510

x = 3490

Does that really work?

2580 + 2930 + 3490 = 9000

Which says it does work.

5 0

3 years ago

Read 2 more answers

Ruth worked from 7:30 am to 11:55am and from 1:00 pm to 4:50 pm. Find the total number of hours worked.

Amanda [17]

Answer:

8 hours, and 25 mins

Step-by-step explanation:

7:30 am to 11:55am= 4 hours, 25 mins

1:00pm to 4:50 pm= 3 hours, 50 mins

Add together

Answer: 8 hours, and 25 mins.

8 0

3 years ago