Express your answer in lowest terms 6/20 + 14/20

Mathematics

2 answers:

Molodets [167]2 years ago

7 0

Answer:1

Step-by-step explanation:

6/20+14/20=

20/20

hjlf2 years ago

7 0

Answer:

My answer for that:/3/10 + 7/10 = 1

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15 POINTSPLEASE HELP WITH MY MATH PROBLEM

iren2701 [21]

Answer:

Another point is (3,1) and the vertex is (0,0)

Step-by-step explanation:

The vertex is still (0,0) since the parabola has only been stretched some way and not shifted from the parent function f(x)=x^2.

Enter in any x you like like 3 (I chose 3 because I see I'm going to multiply by 1/3). Anyways

g(3)=(1/3*3)^2=(1)^2=1 so another point on the parabola is (3,1)... Now just use the fact that all parabolas are symmetrical to graph it.

6 0

2 years ago

you are painting to sell at a carnival .it takes you 3 hours to paint a small pictures and 4 hours to paint a large picture.you

zvonat [6]

3 hours for small = 3s
4 hours for large = 4b
3s + 4b <span>≤ 40 hrs total</span>
3s + 4b ≥ 12 paintings
Constraints:
less than or equal to 40 hrs
more than or equal to 12 paintings

Then you would graph it

Hope this helps :)

5 0

3 years ago

Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. Whe

kherson [118]

Answer:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$

$n=\frac{0.5(1-0.5)}{(\frac{0.03}{1.96})^2}=1067.11$

And rounded up we have that n=1068

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Solution to the problem

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 95% of confidence, our significance level would be given by $\alpha=1-0.95=0.05$ and $\alpha/2 =0.025$ . And the critical value would be given by: