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3 years ago

Which expression results in a rational number?

Mathematics

2 answers:

Marizza181 [45]3 years ago

7 0

Answer:

Step-by-step explanation:

2 i think

creativ13 [48]3 years ago

3 0

3 because the root of 36 is 6 and the root of 225 is 15. Hope this clarifies. For 2, the root of 25 is 5, but 50 is not a perfect square.

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Given this number line, AB=?

Marta_Voda [28]

Answer:

Step-by-step explanation:

4(7)=28

6 0

3 years ago

Read 2 more answers

Filip is inviting 6 friends to a party. Each friend wants 5 cookies and each box has 8 cookies. How many boxes should Filip get?

Alecsey [184]

Flip should get 4 boxes.

6*5=30
30/8=3.75
round up for 4.

3 0

1 year ago

Sally wants to buy a cell phone. The price of the cell phone she had wanted had increased from $200 last week to $240 this week.

notsponge [240]

20%

200 divided by 5 equals 40

4 0

2 years ago

Can someone help me with this problem please thank youu how do you do it ?

icang [17]

Answer:

A) x = 6 y = 6√3

Step-by-step explanation:

30-60-90 Triangle rule states that the hypothesis is 2x, the short leg is x, and the long leg is x√3. So, the short leg is 12/2 = 6, and the long leg is 6√3.

5 0

2 years ago

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. If the true percenta

tresset_1 [31]

Answer:

The probability is 0.057797

Step-by-step explanation:

Consider the provided information.

It is given that true percentage of voters who vote for the proposition is 63%,

Let p is probability of success.

According to the binomial distribution:

$P(x;p,n)=^nC_x(p)^x(1-p)^{(n-x)}$

Substitute n=7, p=0.63 and x=2 in the above formula.

$P(x;p,n)=^7C_2(0.63)^2(1-0.63)^{(7-2)}$

$P(x;p,n)=\frac{7!}{2!5!}(0.3969)(0.37)^{5}\\P(x;p,n)=21(0.3969)(0.37)^{5}\\P(x;p,n)=0.0577974947199\\P(x;p,n)\approx0.057797$

Hence, the probability is 0.057797

8 0

3 years ago