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2 years ago

How to find the exact answer of the area and circumference

Mathematics

1 answer:

Paha777 [63]2 years ago

6 0

Answer:

$\pi \\$ is irrational so any attempt to use 3.14... is never EXACT...

do not try to convert it ... if it asks for exact..

write 81 $\pi \\$ or 9 $\pi \\$ etc. don't put in 63.62 like answers

Step-by-step explanation:

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What is an equation of the line that passes through the point (-6,-8) and is parallel to the line x-2y=6?

vfiekz [6]

Answer:

$y=\frac{1}{2}x-5$

Step-by-step explanation:

Hi there!

What we need to know:

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)
Parallel lines always have the same slope and different y-intercepts

1) Determine the slope (m)

$x-2y=6$

Rearrange this equation into slope-intercept form (this will help us find the slope)

Subtract x from both sides

$x-2y-x=6-x\\-2y=-x+6$

Divide both sides by -2

$y=\frac{1}{2} x-3$

Now, we can identify clearly that the slope of the given line is $\frac{1}{2}$ since it's in the place of m. Because parallel lines always have the same slopes, the line we're currently solving for would therefore have a slope of $\frac{1}{2}$ as well. Plug this into $y=mx+b$ :

$y=\frac{1}{2}x+b$

2) Determine the y-intercept (b)

$y=\frac{1}{2}x+b$

Plug in the given point (-6,-8)

$-8=\frac{1}{2}(-6)+b\\-8=-3+b$

Add 3 to both sides to isolate b

$-8+3=-3+b+3\\-5=b$

Therefore, the y-intercept is -5. Plug this back into $y=\frac{1}{2}x+b$ :

$y=\frac{1}{2}x-5$

I hope this helps!

7 0

3 years ago

Write a proportion and then solve to find the missing measure of the reduced rectangle. What two ratios can be used in the propo

lions [1.4K]

Answer:

What two ratios can be used in the proportion?

8/3 and 18/x

What is the value of a missing measure?

6.75 in.

Step-by-step explanation:

im right trust me. im just cool like that.

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3 years ago

"Four times a number is no more than 36."

kow [346]

Answer:

Step-by-step explanation:

if we consider x as the number we can write this inequality:

4x ≤ 36

If we divide the two members by 4 we have:

x ≤ 9

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2 years ago

Estimate each the quotient 78÷4 is about _____÷4

KonstantinChe [14]

Answer:

Step-by-step explanation:

The trick is to pick something that should be very easy to get an answer to. If you use a calculator, you are not estimating. 80 divide by 4 is like 8 divide by 4 which gives you 2. Then just add a zero. Here's another one you can try. Put your calculator away to do it. 12 chicken noodle soup cans cost 14 dollars. About how much does 1 can cost

no cheating. No calculator. Is the cost of 1 can more or less than a dollar? If you said more, you've estimated correctly.

Try it the other way. Suppose one can of the soup costs 0.95 cents. How many will 12 cans cost? More or less than 12 dollars.

If you said less, you are estimating correctly. The most useful gift you can take away from any math class is estimation.

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3 years ago

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djverab [1.8K]

Answer:

Step-by-step explanation:

Cooking causes chemicals in the steak to be released.

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2 years ago