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3 years ago

Hey please help, in your own words, what is a radical expression?

1 answer:

8 0

A radical expression has to do with finding the square root, or the factors of a number. However these factors are the same number, which is why a radical expression is different from a regular divisions equation. (hope this helped :) )

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1. a machine can print 300 T-shirts in 10 minutes how many T-shirts can the machine print in 1 minutes

xxTIMURxx [149]

1. 300 T-shirt in 10 Minutes, thus: 300/10=30 T-shirts per minute.
3. 2 Liters in 10 seconds, thus: 2/10 = 0.2 Liters or 2 deciliters each second
4. Bill is paid $200 for 5 days, thus, $200/5 = $40 per day.

6 0

4 years ago

A box contains five slips of paper, marked $1, $1, $10, $10, and $25. The winner of a contest selects two slips of paper at rand

Leni [432]

Answer:

P(w = $1) = 1/10

P(w = $10) = 5/10

P(w = $25) = 4/10

Step-by-step explanation:

Let S1, S2, S3, S4 and S5 be the slips of paper, where we make the next identifications

S1: $1, S2: $1, S3: $10, S4: $10 and S5: $25. The number of different subsets of size 2 that we can get with the five slips of paper is given by 5C2 = 10 (combinations). Let's define the following events

A: the winner of the contest gets $1

B: the winner of the contest gets $10

C: the winner of the contest gets $25

So,

A={(S1, S2)}

B={(S1, S3), (S2, S3), (S1, S4), (S2, S4), (S3, S4)}

C={(S1, S5), (S2, S5), (S3, S5), (S4, S5)}

The random variable w can only take the values $1, $10 or $25. Then

P(w = $1) = P(A) = 1/10

P(w = $10) = P(B) = 5/10

P(w = $25) = P(C) = 4/10

3 0

3 years ago

The graph represents the speed at which Pete’s marble travels.

AfilCa [17]

Answer:

Step-by-step explanation:

Here, we simply want to know who will reach the 6-foot mark sooner

Mathematically, we need to get the slope from the graph

Looking at the graph, we can see that the 3 ft mark was reached at exactly 2 seconds

So what this mean is that, in 4 seconds, the 6 ft mark will be reached

This makes up the fact that the speed for Pete’s travel is 1.5 ft/ secs

Now compare this with what Stephano has, which is 2.25 ft/ s

we can see that stephano is traveling at a better speed and will reach the 6 ft mark first

So the correct option is B

5 0

3 years ago

There 14 girls and 12 boys in the classroom write a ratio, in Fraction and simplify form

PtichkaEL [24]

Answer:

The ratio is 14:12, fraction it is 14/12, simplify 7/6

Step-by-step explanation:

6 0

3 years ago

Differential Equations

SashulF [63]

Answer:

$b=\pm2\sqrt{2}$

Step-by-step explanation:

For the spring mass system

my"+by'+ky=0

The system is said to be critically damped if $b^2-4mk=0$

Here b is coefficient of friction

m is the mass of system

And k is spring constant

We have given m = 2 kg , k =1

So $b^2-4\times 2\times 1=0$

$b^2=8$

$b=\pm2\sqrt{2}$

So the coefficient of friction is $\pm2\sqrt{2}$

7 0

3 years ago