2 years ago

5(3+6) < 40 Solve the inequality

Mathematics

1 answer:

inna [77]2 years ago

8 0

Answer:

Step-by-step explanation:

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What sample size should be used if we would like to estimate the mean age of the college students at a particular campus with 95

nevsk [136]

Answer: 12

Step-by-step explanation:

The formula to find the sample size is given by:-

$n=(\dfrac{z_c\cdot \sigma}{E})^2$ , where $\sigma$ is the population standard deviation, $z_c$ is the z-value for the $(1-\alpha)$ confidence interval and E is the margin of error .

As per given , we have

Population standard deviation : $\sigma=5.1$

z-value for 95% confidence interval : $z_c=1.960$

Margin of error : E= 3

Then, the required minimum sample :-

$n=(\dfrac{(1.96)\cdot (5.1)}{3})^2\\\\\Rightarrow\ n=(3.332)^2=11.102224\approx12$

Hence, the required minimum sample size = 12

3 0

3 years ago

2.) AN *

WINSTONCH [101]

Answer:

is this a joke i have no clue

Step-by-step explanation:

maybe A is this math or sumthing? lol SUM-thing

4 0

3 years ago

What is the y-intercept of he function f(x)=4-5x

trapecia [35]

I'm thinking that its 4 because.....
you add 5x on each side, u put the 5 in the parenthesis and replace the x with 5 then you'll end up having f(5)=4. How's that?

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3 years ago

For a craft activity at a daycare, each child will need 1.75 yards of ribbon and 2.8 yards of fabric. There are 25 yards of ribb

devlian [24]

25/1.75 is approximately 14
30/2.8 is about 10. Because the kids need BOTH ribbon and fabric, only 10 can participate because that's all the fabric available

8 0

3 years ago

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A) Work out 4 1/7 + 1 1/2

Vesnalui [34]

Answer:

135/14

9 9/14

Step-by-step explanation:

29/7+11/2

4 0

3 years ago

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