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3 years ago

I need help setting it up and solving it but mostly setting it all up please and thank you ?!!!i need help asap!!!!!

Mathematics

1 answer:

professor190 [17]3 years ago

8 0

This is the work that I did. Hope it helps

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Help please questions are in the picture

vredina [299]

Question number 1:

Answer:

Answer B

Step-by-step explanation:

Add the prices

$143.99 + $82.40 = $226.39

Multiply by 6

$226.39 · 6 = $1358.34

Answer B, 1358.34

7 0

3 years ago

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QUESTIONNNNNNNNNN!!!!

Lemur [1.5K]

Answer:

4 i think

Step-by-step explanation:

3 0

3 years ago

Need ASAP I’ll mark brainliest if right

DedPeter [7]

Answer:

616 in²

Step-by-step explanation:

14 × 14 × 22/7

=> 616

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3 years ago

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In a sample of 679 new websites registered on the Internet, 42 were anonymous (i.e., they shielded their name and contact inform

Semmy [17]

Answer:

95% Confidence interval: (0.0429,0.0791)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 679

Number of anonymous websites, x = 42

$\hat{p} = \dfrac{x}{n} = \dfrac{42}{679} = 0.0618$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

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

Putting the values, we get:

$0.0618\pm 1.96(\sqrt{\dfrac{0.0618(1-0.0618)}{679}}) = 0.0618\pm 0.0181\\\\=(0.0429,0.0791)$

is the required confidence interval for proportion of all new websites that were anonymous.

8 0

3 years ago

The perimeter of a trapezoid is 39a – 7. Three sides have the following lengths: 9a, 5a + 1, and 17a – 6. What is the length of

Airida [17]

We know the perimeter is the total sum of all sides of the shape, we can use this to form an equation: the perimeter=1st side + 2nd side + 3rd side + 4th side 39a-7=9a+(5a+1)+(17a-6)+4th side.
Collect like terms to get 39a-7=31a-5+4th side
If we move everything but the 4th side over to the left we can solve
C. 8a-2=4th side is the correct answer

3 0

3 years ago

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