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3 years ago

Help please!! :)))) Thanks!

Mathematics

1 answer:

baherus [9]3 years ago

5 0

The answer is C. 16!!

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Simplify each radical

const2013 [10]

Answer:

AECG

Step-by-step explanation:

sqrt(49) = 7

sqrt(a^2) = a

sqrt(b^2) = b

For every two variables you can take one out from under the root sign and thorough the other one away.

Answer: E

sqrt(36) = 6

sqrt(a^2) = a See comment for 1.

b must be left where it is. There is only 1 of them.

6asqrt(b)

Answer: A

3. sqrt(25) = 5

sqrt(b^2) = b

a must be left alone. There's only 1 of them.

5b sqrt(a)

answer: C

sqrt(81 a b)

sqrt(81) = 9

The variables must be left alone. There's only1 of them

9 sqrt(ab)

Answer G

8 0

3 years ago

Vavilen inflated a huge balloon in 19 minutes. Then he poked a hole in the balloon so that it slowly leaked air out until it was

kaheart [24]

Considering balloon to be an spherical object

Volume of sphere = $\frac{4}{3}\pi r^3$ , where r is the radius of sphere.

After 19 minutes ,If radius of balloon changes from r to R, the Volume changes from V to V'.

V'= $\frac{4}{3}\pi R^3$ ,

As given,rate at which the air leaked out of the balloon (in liters of air per minute) was half of the rate at which Vavilen inflated the balloon.

Also, $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

Now, again the radius changes from R to r.So, Volume changes from V' to Back to V.

Time taken by the balloon to deflate = 38 minutes

But there is no relation between time and volume of Balloon.

So, we can't predict at which rate balloon is deflating or inflating.Apart from the statement given in Question: $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

7 0

3 years ago

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Cody Summer sells tires for tractor trailers. He earns 4.5% commission on the first $6,000 in sales, 8% commission on the next $

Vera_Pavlovna [14]

The Answer is $1,470.

8 0

3 years ago

Help pls my brain be broken

Dmitry_Shevchenko [17]

Answer:

if it says n- -10 then its 10

if it says n-10 then its 30

Step-by-step explanation:

i dont know if that line is a negative

8 0

3 years ago

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A line with slope -2 and y-intercept 4

Romashka [77]

Answer:

y = -2x + 4

Step-by-step explanation:

y = mx + b

m ---> slope

b ----> y-intercept

y = -2x + 4

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3 years ago

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