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3 years ago

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Mathematics

1 answer:

marysya [2.9K]3 years ago

3 0

Answer:

Step-by-step explanation:

im pretty sure the right answer would be 12 and 21 just doesn't look right

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Two rectangular prisms have a combined volume of 432 cubic feet. Prism A has half the volume of Prism B.

dexar [7]

Answer:

a. 144 cubic foot

b. 12 ft

c. 18 ft

Step-by-step explanation:

Let the volume of prism A be V_a

and that of prism b be V_b

ATQ, V_a + V_b= 432

also V_a= 0.5 V_b

⇒1.5 V_b= 432

= V_b= 432/1.5= 288 cubic feet

therefore V_a= 144 cubic feet

volume of prism= area of base×height = V_a

24×h = 144

⇒h= 12 ft

A_b= 2/3×24

⇒base area of prism B= 16 sq.ft

now 16×h_b= 288⇒h_b= 288/16= 18 ft

3 0

3 years ago

Read 2 more answers

Which distribution has the greatest spread?

puteri [66]

Answer:

Distribution 4, mean is 20 and standard deviation is 3.2

Step-by-step explanation:

The standard deviation tells us on average how far each of our data values is from the mean. A standard deviation that is larger than the others will mean a distribution that is more spread out than the others; 3.2 is the largest standard deviation, so Distribution 4 has the greatest spread.

7 0

3 years ago

Read 2 more answers

A rabbit population doubles every 4 weeks.There are currently five rabbits in a restricted area. If t represents the time in wee

sertanlavr [38]

Doubling formula is this:

$P(t)=P(2)^{\frac{t}{d}}$
where P=initial number of rabbits
t=time
d=time it takes to doulbe

ok, so 4 weeks is the doubling time so that is 4*7=28 days

we wawnt time=98
and oroiginal number of rabbits is 5 so
$P(98)=5(2)^{\frac{98}{28}}$
$P(98)=5(2)^{3.5}$
$P(98)=5(2^3)(\sqrt{2})$
$P(98)=5(8)\sqrt{2}$
$P(98)=40\sqrt{2}$
so P(98)≈56.56
we can't have .56 rabbit so round down or up
about 56 or 57 rabbits in 98 days

8 0

3 years ago

At the movie theatre, an adult ticket costs $12 and a child’s ticket costs $6. As a group leader, you need to organize a trip to

alexandr1967 [171]

11 children tickets and 7 adult tickets.

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3 years ago

1.) x 5 y 3• x 3 y 4<br> 2.) 3x 2 y • 6xy 4

aksik [14]

Answer:

( 5x+3y=7. < 3x - 5y = -23 you can use many ..

Step-by-step explanation:

hopefully its right

5 0

3 years ago