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3 years ago

How do I give out brainiest ?

Mathematics

2 answers:

Arada [10]3 years ago

7 0

Answer:

You click the crown on an answer. you can practice on mine ;)

Step-by-step explanation:

Kitty [74]3 years ago

7 0

Answer:

If two people had given your answer, then there is an option of 'mark as brainliest'. Click there in the option of 'mark as brainliest' in which you like the answer most and helpful for you. If anyone has given answer then after a few days, you will a notification to mark his/her answer as the brainliest. By this, you can mark an answer as brainliest.

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Of a line passes through the points (1, 2) and (5, 3) the equation of the line is...

Ksju [112]

Answer:

y=1/4x+7/4

Step-by-step explanation:

i think its right

4 0

3 years ago

Phil consumed 1,200 calories at lunch. He has a goal of burning at least 5% of those calories by walking on the treadmill. If wa

givi [52]

Answer: ** B **

A. more than 18 minutes

~ B. no fewer than 18 minutes

C. more than 3 hours

D. no fewer than 3 hours

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

What is the mean absolute deviation of 275, 252, 248, 240, 240, 225, 215, 214, 189, 184

Sati [7]

Hi , if we want to find the M.A.D of the numbers shown , then we have to add them .
275+252+248+240+240+225+215+214+189+184=2,282
Then we have to divide the number by the total of numbers that we have.
2,282 ÷ 10 =228.2
Then we have to subtract 228.2 by each number that we have.
228.2-275=-46.8
228.2 - 252=-23.8
228.2 - 248=-19.8
228.2 - 240=-11.8
228.2-240=-11.8
228.2-225=3.2
228.2-215=13.2
228.2-214=14.2
228.2-189=39.2
228.2-184=44.2
Then we add those numbers , that gives us 0 , if you don't work with negatives numbers then your answer would be 228 , finally we divide that number by the total of numbers that we have , your answer is 22.8 , if you do work with negative numbers then your answer is 0.

6 0

3 years ago

I know you’re supposed to change the bounds and break up the integral, but for some reason, I can’t get the 44/3. Can someone ex

tatyana61 [14]

First, look for the zeroes of the integrand in the interval [0, 6] :

x² - 6x + 8 = (x - 4) (x - 2) = 0 ⇒ x = 2 and x = 4

Next, split up [0, 6] into sub-intervals starting at the zeroes we found. Then check the sign of x² - 6x + 8 for some test points in each sub-interval.

• For x in (0, 2), take x = 1. Then

x² - 6x + 8 = 1² - 6•1 + 8 = 3 > 0

so x² - 6x + 8 > 0 over this sub-interval.

• For x in (2, 4), take x = 3. Then

x² - 6x + 8 = 3² - 6•3 + 8 = -1 < 0

so x² - 6x + 8 < 0 over this sub-interval.

• For x in (4, 6), take x = 5. Then

x² - 6x + 8 = 5² - 6•5 + 8 = 3 > 0

so x² - 6x + 8 > 0 over this sub-interval.

Next, recall the definition of absolute value:

$|x| = \begin{cases}x & \text{for }x \ge0 \\ -x & \text{for }x < 0\end{cases}$

Then from our previous analysis, this definition tells us that

$|x^2 - 6x + 8| = \begin{cases}x^2 - 6x + 8 & \text{for }0$

So, in the integral, we have

$\displaystyle \int_0^6 |x^2-6x+8| \, dx = \left\{\int_0^2 - \int_2^4 + \int_4^6\right\} (x^2 - 6x + 8) \, dx$

Then

$\displaystyle \int_0^2 (x^2 - 6x + 8) \, dx = \left(\frac13 x^3 - 3x^2 + 8x\right) \bigg|_0^2 = \frac{20}3 - 0 = \frac{20}3$

$\displaystyle \int_2^4 (x^2 - 6x + 8) \, dx = \left(\frac13 x^3 - 3x^2 + 8x\right) \bigg|_2^4 = \frac{16}3 - \frac{20}3 = -\frac43$

$\displaystyle \int_4^6 (x^2 - 6x + 8) \, dx = \left(\frac13 x^3 - 3x^2 + 8x\right) \bigg|_4^6 = 12 - \frac{16}3 = \frac{20}3$

and the overall integral would be

20/3 - (-4/3) + 20/3 = 44/3

3 0

3 years ago

Julie and Tim are both cable subscribers. Julie pays 70$ per month plus an additional $4.25 for each movie she orders. Tim’s pay

Nikolay [14]

Answer:

Julie's bill came to $121 for the month in which she ordered 12 movies.

Step-by-step explanation:

Let x represent the number of movies ordered.

Julie: $70 + ($4.25/movie)x, and ...

Tim: $49.50 + ($5.50/movie)x

If Julie ordered 12 movies last month, then her bill came to

$70 + ($4.25/movie)(12 movies) = $70 + $51 = $121

Please be clearer about what you want here. Are you refering to Julie or to Tim or to both when you write, "an equation that best represents the amount of movies?"

7 0

4 years ago