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puteri [66]
2 years ago
15

Simplify 32 ⋅ 35. (4 points)

Mathematics
1 answer:
Andrews [41]2 years ago
8 0

Answer:

Jul 25, 2019 — Click here to get an answer to your question ✍️ 3. Simplify 32 • 35 ... 3. Simplify 32 • 35. (4 points) 37 310 97 910. 2. See answers. Log in to ...

2 answers

Step-by-step explanation:

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What is the measure of angle DEF to the nearest degree?
saveliy_v [14]
I would say the answer is 35.
8 0
2 years ago
Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic
Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

df = n-1= 10-1=9

d.9

b) s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15

a.15

c) For this case we have the sample size n = 25 and the sample variance is s^2 =400 , the standard error can founded with this formula:

SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

df = n-1= 10-1=9

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

SS = \sum_{i=1}^n (X_i -\bar X)^2

And the sample variance for this case can be calculated from this formula:

s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is s^2 =400 , the standard error can founded with this formula:

SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80

8 0
3 years ago
Problem Solving
N76 [4]

you're absolutely correct.

each system is sold for $2150, that includes cost + markup, namely the markup is the surplus amount otherwise called "profit".

they sold 12 of those, 2150 * 12 = 25800

they had $4824.36 in profits from it, so if we subtract that from the sale price, we'll be left with the cost of all 12 systems

25800 - 4824.36 = 20975.64

that's the cost for all 12 systems sold, how many times does 12 go into 20975.64?  20975.64 ÷ 12 = 1747.97.

7 0
2 years ago
Expand(2x-1)(x+5) please answer this ASAP thank you.
hjlf

Answer:

2x² + 9x - 5

Step-by-step explanation:

Given

(2x - 1)(x + 5)

Each term in the second factor is multiplied by each term in the first factor, that is

2x(x + 5) - 1(x + 5) ← distribute both parenthesis

= 2x² + 10x - x - 5 ← collect like terms

= 2x² + 9x - 5

4 0
2 years ago
Solve 9(t-7)=u for t<br> Show all solving steps.
Gwar [14]

\begin{gathered}\\ \sf\longmapsto 9(t-7)=u\end{gathered}

\begin{gathered}\\ \sf\longmapsto 9t-63=u\end{gathered}

\begin{gathered}\\ \sf\longmapsto 9t=u+63\end{gathered}

\begin{gathered}\\ \sf\longmapsto \frac{9t}{9}=\frac{u+63}{9}\end{gathered}

\begin{gathered}\\ \sf\longmapsto t=\frac{u+63}{9} \end{gathered}

\begin{gathered}\\ \sf\longmapsto t=\frac{u}{9}+7\end{gathered}

3 0
2 years ago
Read 2 more answers
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