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2 years ago

How many 1/2 are there in 7 1/2 ?

Mathematics

2 answers:

My name is Ann [436]2 years ago

4 0

Answer:

There are 15 halves in 7 1/2.

ella [17]2 years ago

3 0

7 1/2 = 15/2

15/1=15

There are fifteen 1/2's in 7 1/2

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hope it helps

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The graph of the piecewise function f(x) is shown what is the domain of f(x)

Rom4ik [11]

The domain of a function is where we have a value for x.

Since that's the case the domain of f(x) = {x e R / 1 ≤ x < 5}

We see that we have a value for x = 1 cuz we have a filled circle, but we don't have a value for x = 5, look at the unfilled circle

So, our x can vary between 1 and 5, but can't be 5.

8 0

3 years ago

Factor the expression. 2x^2-7x-15

lutik1710 [3]

Answer:

Factor by grouping

(2x+3) (x-5)

Step-by-step explanation:

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2 years ago

The table shows information about some children.

Sindrei [870]

Answer:

$P(Age\ 12) = \frac{2}{3}$

Step-by-step explanation:

Given

Age 11 Age 12 Total

Girls 3 5 8

Boys 1 3 4

Required

$P(Age\ 12)$

The number of aged 12 children is:

$Age\ 12 = 5 + 3$

$Age\ 12 = 8$

The total number of children is:

$Total=8+4$

$Total = 12$

So, we have:

$P(Age\ 12) = \frac{Age\ 12}{Total}$

$P(Age\ 12) = \frac{8}{12}$

Simplify

$P(Age\ 12) = \frac{2}{3}$

3 0

2 years ago

What is the lowest term for 10/12

Studentka2010 [4]

Answer:

5/6

Step-by-step explanation:

Find the lowest common denominator between the 10 and 12.

10 and 12 have the lowest common denominator of 2

10/2=5

12/2=6

So 5/6 is the lowest term of 10/12

3 0

3 years ago

A media poll of 500 air travelers surveyed in national airports found that 370 favor tighter security procedures in boarding pla

serg [7]

Answer:

92% Confidence interval: (0.7078,0.7722)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 500

Number of travelers who favor tight security, x = 370

$\hat{p} = \dfrac{x}{n} = \dfrac{370}{500} = 0.74$

92% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.08} = \pm 1.645$

Putting the values, we get:

$0.74\pm 1.645(\sqrt{\dfrac{0.74(1-0.74)}{500}}) = 0.74\pm 0.0322\\\\=(0.7078,0.7722)$

3 0

3 years ago