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SCORPION-xisa [38]
3 years ago
12

HELP ME PLEASE !!!!!!!!

Mathematics
1 answer:
german3 years ago
4 0

Answer:

the answer is the top one and the last one. Hope it helped :)

You might be interested in
Please help!! I don't understand it.
True [87]
D = π(bore / 2)² · stroke · n
can be rewritten as
D = π(1/2 * bore)² · stroke · n

If bore = k /2, and stroke = h, and # of cylinders = n = 8, then

D = π(1/2 * k/2)² · h · 8
= 8π*h(k/4)²
= 8π*h(k²/16) since (k/4)² = k²/4² = k²/16
= π*h*k²/2

Answer for the first part: D = π*h*k²/2

For second part, if bore = 4 inches, stroke is 3.4 inches, and # cylinders = n = 4, then

D = π(1/2 * bore)² · stroke · n
D = π(1/2 * 4)² · 3.4 · 4
D = 170.9 cubic inches
6 0
4 years ago
Please! help and tell me the answers, or help me figure out these answers for 20 points? please! And please help me. Can anybody
max2010maxim [7]

Answer:

1. Pattern (rule) : y = x-6

2. Pattern (rule) : y=x^2+1

3. Pattern (rule)  : y = -3x

4. Pattern (rule) : y = 2x-2

5. Pattern (rule) : y = x^2

Step-by-step explanation:

Note: question number correspond to your order of questions.

1. Pattern (rule) : y = x-6

for missing parts, see attached table.

2. Pattern (rule) : y=x^2+1

3. Pattern (rule)  : y = -3x

4. Pattern (rule) : y = 2x-2

5. Pattern (rule) : y = x^2

5 0
3 years ago
In the 2009 General Social Survey, respondents were asked if they favored or opposed death penalty for people convicted of murde
sleet_krkn [62]

Answer:

The calculated 99% confidence interval is wider than the 95% confidence interval.      

Step-by-step explanation:

We are given the following in the question:

95% confidence interval for the population proportion

(0.65, 0.69)

Let \hat{p} be the sample proportion

Confidence interval:

p \pm z_{stat}(\text{Standard error})

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Let x be the standard error, then, we can write

\hat{p} - 1.96x = 0.65\\\hat{p}+1.96x = 0.69

Solving the two equations, we get,

2\hat{p} = 0.65 + 0.69\\\\\hat{p} = \dfrac{1.34}{2} = 0.67\\\\x = \dfrac{0.69 - 0.67}{1.96} \approx 0.01

99% Confidence interval:

p \pm z_{stat}(\text{Standard error})

z_{critical}\text{ at}~\alpha_{0.01} = 2.58

Putting values, we get,

0.67 \pm 2.58(0.01)\\=0.67 \pm 0.0258\\=(0.6442,0.6958)

Thus, the calculated 99% confidence interval is wider than the 95% confidence interval .

4 0
3 years ago
What is the greatest common factor of 56, 80 and 56?
Irina-Kira [14]
The greatest common factor would be 8
3 0
3 years ago
Read 2 more answers
PLZ HURRY IT'S URGENT!!!
Marrrta [24]

Answer:

D. -3

Step-by-step explanation:

Add all numbers together = -15

then divide by the numbers of numbers = 5

= -3

6 0
3 years ago
Read 2 more answers
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