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2 years ago

Which of the following can be used to find the volume?

Mathematics

2 answers:

Bingel [31]2 years ago

7 0

Answer:

I don't no answer sorry

Step-by-step explanation:

give me brainliest

mina [271]2 years ago

6 0

Answer:

third and fourth option

Step-by-step explanation:

volume of rectangular prism = length*width*height

=7.5 * 2 * 4.2

= 63 cm^3

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Write in standard form: <img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B%5Csqrt%7B2%7D%7D%7B2%7D%20%2B%20%5Cfrac%7B%5Csqrt%7B2%7D

lutik1710 [3]

Answer:

-1

Step-by-step explanation:

$=(\frac{1}{\sqrt{2}}(1+i))^4\\=\frac{1}{4}(1+i)^2(i+i)^2\\=\frac{1}{4}(2i)(2i)\\=i^2\\=-1$

7 0

3 years ago

3) Two cars leave Cincinnati at the same time. Car A moves East at a constant speed of 60 miles per hour, while car B

Inessa [10]

Answer:

D). 262.5 miles.

Step-by-step explanation:

The speed at which they are drawing apart = 60 + 45 = 105 mph.

So in 2.5 hours they wiil be

2.5 * 105

= 210 + 52.5

= 262.5 miles.

4 0

2 years ago

A roster for a baseball team has 12 players. the coach is randomly making the batting order for 9 players. what is the probabili

andrey2020 [161]

The probability of you being the leadoff hitter is 8.3%.

Explanation:

The number of possible rosters can be calculated with permutations, knowing that the coach can choose the first hitter among all 12 players, then the second hitter among the 11 players remaining and so on until the 9th hitter among the remaining 4 players.

Therefore:
Possible rosters = 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 = 79833600

The leadoff hitter is the first player in the batting order, therefore the number of possible rosters in which you are chosen as the first one is:
You leadoff = 1 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 = 6652800

The probability of you being leadoff is:
P = You leadoff / Possible rosters
 = 6652800 / 79833600
 = 1 / 12
 = 0.08333
 = 8.3%

Note that this is exactly the probability of you being chosen out of the 12 players of the team in a one-pick choice because it does not matter how the rest of the batting order is composed.

3 0

3 years ago

HELPPPPPPPPPPP! Henley wants to buy a laptop for $1,100. She currently has $110 in savings. Assuming she continues to save 10% o

sammy [17]

Answer:

3months

Step-by-step explanation:

target $1100

currently saved $1100

so we get the amount she need to save to get to the target.

$1100 - $110= $990 Need to be saved

saving rate 10% of $3300= $330 per month

to get the number of months she need to save, we divide amount needed by amount saved per month; $990 ÷ $330= 3months

7 0

3 years ago

Two circles, one of radius 5 inches, the other of radius 2 inches, are tangent at point P. Two bugs start crawling at the same t

lawyer [7]

Answer:

40 minutes

Step-by-step explanation:

The circumference of the larger circle is ...

C = 2πr = 2π(5 in) = 10π in

The bug navigates the circumference at 3π in/min, so will take

time = distance/speed = (10π in)/(3π in/min) = 10/3 min

to travel once around.

The circumference of the smaller circle is ...

C = 2πr = 2π(2 in) = 4π in

The bug navigates this circumference at 2.5π in/min, so will take

(4π in)/(2.5π in/min) = 8/5 min

to travel once around.

The bugs will meet at a time that is the least common multiple of these times. Both can be expressed in 15ths of a minute as ...

{50/15, 24/15}

Then the LCM of these will be ...

(1/15)LCM(50, 24) = (1/15)(50×24)/GCD(50, 24) = 1200/30 = 40

It will be 40 minutes before the bugs next meet at point P.

___

A graphing calculator can make use of the mod function to show when the bugs meet at point P (total is displacement of the two bugs from P is zero). It shows the meeting occurs after 40 minutes.

5 0

3 years ago