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3 years ago

Anotherrrrr oneeeeeeeee

Mathematics

2 answers:

tatiyna3 years ago

7 0

Add more numbers for the graph labels for the temperature. For example, make a graph with temperatures for 70 to 90 degrees and make them in groups of two. 70,72,74,76,78, etc.

Zolol [24]3 years ago

5 0

Im good at math 9+1=10

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Two cars leave a house at the same time. one car travels 60 km/hr north, while the other car travels 40 km/hr east. after 1 hr,

Ksju [112]

They are 20km apart. because in one hour one car would travel 60km and the other 40km and 60-40=20

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4 years ago

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Dayton writes the expression n2+4n+1 for the number of squares used to make the nth figure in the pattern shown. Drag statements

mixer [17]

well that took alot of guesses...

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3 years ago

Find the volume V obtained by rotating the region bounded by the curves about the given axis.

BartSMP [9]

Using the disk method, the volume is given by the integral

$\displaystyle \pi \int_{\pi/2}^\pi (9\sin(x))^2\,\mathrm dx = 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx$

That is, each disk has a radius of y = 9 sin(x) and hence area = π (9 sin(x))². Add up infinitely many such disks by integrating. Then the volume is

$\displaystyle 81\pi \int_{\pi/2}^\pi \sin^2(x)\,\mathrm dx = \frac{81\pi}2 \int_{\pi/2}^\pi (1-\cos(2x))\,\mathrm dx \\\\ =\frac{81\pi}2 \left(x-\frac{\sin(2x)}2\right)\bigg|_{\pi/2}^\pi \\\\ = \frac{81\pi}2 \left( \left(\pi-\frac{\sin(2\pi)}2\right) - \left(\frac\pi2 - \frac{\sin(\pi)}2\right) \right) \\\\ = \boxed{\frac{81\pi^2}4}$

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3 years ago

Find the x- and y- intercepts of y = |x+1| -3 Someone help me please

zepelin [54]

Answer:

x-intercepts: (-4,0) and (-2,0) y-intercepts: (0,-2)

Step-by-step explanation:

x-intercept:

y = |x+1| - 3

0 = |x+1| - 3

3 = |x+1|

The numbers -4 and 2 are the x-intercepts because if you add -4 and 1, you get the absolute value of -3, which is 3. If you add 2 and 1, you get the absolute value of 3, which is 3.

y-intercept:

y = |x+1| - 3

y = |0+1| - 3

y = |1| - 3

y = 1 - 3

y = -2

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3 years ago

Two number cubes are rolled to determine how a token moves on a game board. The sides of each number cube are numbered 1, 2, 3,

Pavlova-9 [17]

Answer:

Step-by-step explanation:

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3 years ago