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3 years ago

HELP PLEASE BE QUICK

Mathematics

2 answers:

Sedaia [141]3 years ago

8 0

Answer:

the answer is 78.6

Step-by-step explanation:

l x w x h = volume

Svetradugi [14.3K]3 years ago

8 0

V≈66.51

you can use a calculator for this if you have too there is a calculator on google that allows you to find the volume of multiple shapes.

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What is the slope of a trend line that passes through the points (–3, 3) and (18, 26)?

Tasya [4]

Use can you slope formula:

$\frac{Y_2 - Y_1 }{X_2 - X_1}$

Then, substitute values into the formula.

$\frac{26 - 3}{18 - (-3)}$

Then solve. You get the fraction, $\frac{23}{21}$ . That is your slope.

4 0

3 years ago

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A clothing store is offering two coupons. one is for $50 off your purchase and the other is for 30% off your purchase. If the to

abruzzese [7]

Answer:

Step-by-step explanation:

$195.42 - $50 = $145.42

$195.42/30% = 136.79

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3 years ago

Given A (-10,-3.5) and B (2, 5.5), find the coordinates of point P on AB so that P partitions AB in the ratio 5:1.

Sunny_sXe [5.5K]

$\textit{internal division of a line segment using ratios} \\\\\\ A(-10,-3.5)\qquad B(2,5.5)\qquad \qquad \stackrel{\textit{ratio from A to B}}{5:1} \\\\\\ \cfrac{A\underline{P}}{\underline{P} B} = \cfrac{5}{1}\implies \cfrac{A}{B} = \cfrac{5}{1}\implies 1A=5B\implies 1(-10,-3.5)=5(2,5.5)$

$(\stackrel{x}{-10}~~,~~ \stackrel{y}{-3.5})=(\stackrel{x}{10}~~,~~ \stackrel{y}{27.5})\implies P=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{-10+10}}{5+1}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{-3.5+27.5}}{5+1} \right)} \\\\\\ P=\left( \cfrac{0}{6}~~,~~\cfrac{24}{6} \right)\implies P=(0~~,~~4)$

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2 years ago

Simplify the expression below. (10x+1)3x+5(5x)

Katen [24]

Answer:

38x

Step-by-step explanation:

{(10x+1)3x}+5(5x)

10x+3x+25x=38x

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3 years ago

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Suppose that f(1=9, f(4=?3, f?(1=9, f?(4=?5, and f?? is continuous. find the value of ?41xf??(xdx.

Over [174]

Some characters in your question are not displayed properly, so I'm guessing at what it says.

"Suppose that $f(1)=9$ , $f(4)=-3$ , $f'(1)=9$ , $f'(4)=-5$ , and $f''$ is continuous. Find the value of $\displaystyle\int_1^4xf''(x)\,\mathrm dx$ ."

(Correct me if I'm wrong!)

Integrate by parts, letting $u=x$ and $\mathrm dv=f''(x)\,\mathrm dx$ , so that $\mathrm du=\mathrm dx$ and $v=f'(x)$ . Then you have

$\displaystyle\int_1^4xf''(x)\,\mathrm dx=xf'(x)\bigg|_{x=1}^{x=4}-\int_1^4f'(x)\,\mathrm dx$

Integrating once more gives

$\displaystyle\int_1^4xf''(x)\,\mathrm dx=xf'(x)\bigg|_{x=1}^{x=4}-f(x)\bigg|_{x=1}^{x=4}$
$=(4f'(4)-1f'(1))-(f(4)-f(1))$
$=(-20-9)-(-3-9)=-17$

8 0

3 years ago