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3 years ago

Please Help IF Its Correct I WIll GIve Brainlyest I Cant FIgure This Out

Mathematics

1 answer:

Kryger [21]3 years ago

5 0

Answer:

okay so frist you have to know the trapeziod equation and that would be a= a+b over 2 h, this is how we did it in my school and i hope this helps or you understand

Step-by-step explanation:

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a diver begins a sea level and dives down 200 feet. he ascends at a steady rate of 12 and 1 thirds feet per minute for 4.5 minut

Komok [63]

12 1/3 x 4.5 = 55 1/2 feet

-200 + 55 1/2 = -144 1/2

the diver is at -144 1/2 feet

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3 years ago

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7nadin3 [17]

The answer to this problem is b

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3 years ago

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3241004551 [841]

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3 years ago

Find an equation of the line that satisfies the given conditions.<br> Through (-3, -4); slope -5/2

Wittaler [7]

Answer:

y = - 5/2x - 23/2

Step-by-step explanation:

b = y - (slope)(x)

b = -4 - (-5/2)(-3)

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3 0

3 years ago

In 2012, about 24% of high-school seniors reported binge drinking (defined as five or more drinks in a row in the past two weeks

Artist 52 [7]

Answer: (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)

Step-by-step explanation:

We know that the confidence interval population proportion (p) is given by :-

$\hat{p}\pm z*\cdot SE$

, where $\hat{p}$ = sample proportion.

z* = Critical value (Two -tailed)

SE = standard error

Given : In 2012, about 24% of high-school seniors reported binge drinking (defined as five or more drinks in a row in the past two weeks), a substantial drop since the late 1990s.

$\hat{p}=0.24$

SE = 0.019

Significance level = $\alpha=1-0.95=0.05$

Two-tailed value corresponds for $\alpha=0.05$ :

z*=1.96 [Using z-table]

Now, the 95% confidence interval for the proportion of high-school seniors in the sample who would report binge drinking will be :-

$0.24\pm (1.96)\cdot (0.019)=(0.24-1.96\times 0.019,\ 0.24+1.96\times 0.019)$

Hence, the correct answer = (0.24 - 1.96*0.019, 0.24 + 1.96*0.019)

8 0

4 years ago