Answer:
Step-by-step explanation:
The point of intersection is also the solution to this system of equations.
We can solve this system using substitution:
Add 3 to both sides:
Divide both sides by 3
Then, substitute 6 for x to solve for y:
Therefore the point of intersection is:
Answer:
4
Step-by-step explanation:
Put 2 where x is and do the arithmetic.
f(2) = 10 -3∙2 = 10 -6
f(2) = 4
Answer:
There is enough statistical evidence to support the claim that the survey is not accurate.
Step-by-step explanation:
We have to perform a test of hypothesis on the proportion.
The claim is that the proportion of families that own stock differs from 48.8%.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The sample. of size n=250, has a proportion of p=0.568.
The standard error of the proportion is
The z-statistic can now be calculated:
The P-value for this two-tailed test is then:
As the P-value is smaller than the significance level, the effect is significant. The null hypothesis is rejected.
There is enough evidence to support the claim that the survey is not accurate.
133.857142857 I’m not completely sure
You have 5 sides
Front 1x6x5=39
Bottom 1x6x3=18
Back 1x6x4=24
Two triangles 2x1/2x3x4= 12 triangle is 1/2bh
Add 39+18+24+12= 93 sq cm