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miskamm [114]
3 years ago
7

Please help me i cant get this i. honestly just need someone to give the answers for this lesson

Mathematics
1 answer:
Likurg_2 [28]3 years ago
7 0
Area of the triangle = (1/2)*base* height = (1/2)*3*6 = 9 sm²
We have 4 triangles like this one ,
so area of 4 triangles  = 9*4 = 36 cm².
Area of the square = 3*3 = 9 cm²

Surface area here means area all triangles  + area of the square =36 +9 =
= 45 cm ²

Answer is 45 cm².

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Home Videos Inc. surveys 450 households and finds that the mean amount spent for renting or buying videos is P135 a month and th
adell [148]

SOLUTION:

Case: Hypothesis testing

Step 1: Null and Alternative hypotheses

\begin{gathered} H_0:\mu=P127.50 \\ H_1:\mu\leq P127.50 \end{gathered}

Step 2: T-test analysis

\begin{gathered} t=\frac{\hat{x}-\mu}{\frac{s}{\sqrt{n}}} \\ t=\frac{135-127.5}{\frac{75.25}{\sqrt{450}}} \\ t=2.144 \end{gathered}

Step 3: t-test with the significance level

\begin{gathered} t_{\alpha}=? \\ \alpha=0.05 \\ From\text{ }tables \\ t_{0.05}=1.654 \end{gathered}

Step 4: Comparing

t>t_{\alpha}

So tail to reject the null hypothesis. There is enough evidence at a 0.05 level of significance to claim that the mean spent is greater than P127.50.

Final answer:

Yes, there is evidence sufficient to conclude that the mean amount spent is greater than P127.50 per month at a 0.05 level of significance.

6 0
1 year ago
Need help homework almost due
denis-greek [22]

Answer:

i dont know

Step-by-step explanation:

7 0
2 years ago
What is the distance between the points (2, 10) and (-6, 4) on the coordinate plane?
Galina-37 [17]
It's 3/4 because (y2-y1)/(x2-x1)
3 0
3 years ago
A process of inserting points between actual plotted data points or extending an actual line of data is called:
german

The <em>correct answer</em> is:


interpolating


Explanation:


Interpolation is a method of constructing new data points within the range of a discrete set of known data points.


This would include inserting data points between two known points and extending a data set.

4 0
3 years ago
Perpendicular lines are defined as
BartSMP [9]
Lines that overlap each other opposite like a T or +
6 0
3 years ago
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