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sertanlavr [38]
2 years ago
10

Evaluate the expression 10^2+(3+5)^2 - 5=

Mathematics
2 answers:
vampirchik [111]2 years ago
8 0

Answer:

159

Step-by-step explanation:

10^2+(3+5)^2-5

-> 100 + (3+5)^2 -5

-> 100 + 8^2 - 5

-> 100 + 64 - 5

-> 159

gulaghasi [49]2 years ago
8 0

Answer:

159

Step-by-step explanation:

10^{2} + (3+5)^{2} -5\\100 + (3+5)^{2} - 5\\100 + 64 - 5=\\159

10 to the second power is 100 (10x10)

3 plus 5 is 8

8 to the second power is 64 (8x8)

then just slove.

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Help please I forgot
Gre4nikov [31]

Answer:

.3636363636363636363636363636363636363...so on so forth.

Step-by-step explanation:

repeating

8 0
3 years ago
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
Use the right triangular prism shown to answer the following questions.
Tju [1.3M]

Answer:

168cm is the right answer

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
??????????????????????????
Zinaida [17]

Answer:

D

Step-by-step explanation:

A)

3(2) + 4(-2) = -2                    2(2)-4(-2) = -8

6 - 8 = -2                              4 + 8 = -8

Correct                                 Incorrect  

B)

3(6) + 4(-5) = -2                    2(6) - 4(-5) = -8  

18 - 20 = -2                            12 + 20 = -8

Correct                                 incorrect

C)

3(4) + 4(4) = -2

12 + 8 = -2

incorrect

D)

3(-2) + 4(1) =-2                        2(-2) - 4(1) = -8

-6 + 4 = -2                                 -4 - 4 = -8

Correct                                      Correct

Best way is process of elimination

5 0
2 years ago
I don’t get this one
fomenos
Hi!

Two negatives make a positive, so this can be rewritten as
-7+2.5

The answer is D. -7+2.5

Hope this helps! :)
-Peredhel
4 0
3 years ago
Read 2 more answers
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