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3 years ago

If Devaughn earns a C in science, a D in math, and an A in English, what is his GPA?

Mathematics

2 answers:

Pie3 years ago

8 0

The answer will is 2.34

Luda [366]3 years ago

8 0

Your answer would be 2.34

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(16x-1) (20x+10)<br> What is X?

KatRina [158]

Answer:

320x^2+140x-10

Step-by-step explanation:

(16x-1)(20x+10)

320x^2+160x-20x-10

320x^2+140x-10

8 0

2 years ago

Which of the following are square roots of the number below? Check all that

zvonat [6]

Answer:

Step-by-step explanation:

6 0

3 years ago

The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any meth

Lubov Fominskaja [6]

Answer:

$\frac{128\pi}{3}$ cubic units

Step-by-step explanation:

We are given that a region bounded by a curves $x=(y-7)^2$

x=4 and about y=5

We have to find the value of volume of the resulting solid

To find the volume of resulting solid we are using cylinder method

Substitute the values of x then we get

$(y-7)^2=4$

$y-7=\pm2$

y-7=2 and y-7=-2

y=7+2=9 and y=-2+7=5

Radius of cylinder =r=y-5

and height =h= $4-(y-7)^2=4-y^2-49+14 y=-y^2+14 y -45$

Using cylinder method and integrate along y -axis from y=5 to y=9

Volume = $\int_{a}^{b}2\pi r h dy=\int_{5}^{9}2\pi(y-5)(-y^2+14 y -45) dy$

volume= $2\pi\int_{5}^{9}(-y^3+19y^2-115y+225)dy$

Volume = $2\pi[-\frac{y^4}{4}+19\frac{y^3}{3}-115\frac{y^2}{2}+225y]^9_5$

Volume = $2\pi[-\frac{6561}{4}+\frac{625}{4}+19(\frac{729-125}{3})-115(\frac{81-25}{2})+225(9-5)]$

Volume= $2\pi(-1484+\frac{11476}{3}-3220+900)$

Volume = $2\pi(\frac{11476}{3}-3804)$

Volume = $2\pi(\frac{11476-11412}{3})=\frac{128\pi}{3}$

Hence, volume of resulting solid = $\frac{128\pi}{3}$ cubic units

3 0

2 years ago

You row upstream at a speed of 2 mi/h. You travel the same distance

Reika [66]

Answer:

3.5 m/hr

Step-by-step explanation:

2 + c = 5 -c c = speed of current

2 c = 3 c = current speed = 1.5 m/hr

your speed = 5 - 1.5 (or 2 + 1.5) = 3.5 m/hr

4 0

1 year ago

Eitan is on a train heading west into the city while Dmitri is on a train on the adjacent track heading east, away from the city

siniylev [52]

The time when the two trains reach each other is 1.25 hours
The trains are 68.75 away from the city when they reach each other.

6 0

2 years ago

Read 2 more answers