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Tasya [4]
3 years ago
6

plz help !! very URGENT!!! first to answer will be mark as the brainyest!! also explain the steps that you took and which letter

is the answer.

Mathematics
1 answer:
hammer [34]3 years ago
5 0
Your answer is c: f=2 1/2 c
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Calculate dy/dxif y = 4x3 + 3x2 + 2.
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The answer is
 <span>A. 12x2 + 6x

solution 
</span><span>y = 4x3 + 3x2 + 2
</span><span>y'(x) = 12x^2 + 6x


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3 years ago
If cost 5:50 per Hour to rent a pair of ice skates for Up to 2 hours. After 2 hours, the rental cost per hour decreases to 2:50.
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5.50 *2 for the first 2 hours

2.50 *2 for 2 hours after the decrease of prices

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3 years ago
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I need the corresponding letters on the equation.<br> A=<br> B=<br> C=<br> D=<br> E=<br> F=<br> G=
REY [17]

Answer:

A = 3

B = 1

C = 2

D = 10

E = 2

F = Not listed

G = 1

Step-by-step explanation:

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8 0
3 years ago
Which expression should you simplify to find the 90% confidence interval,
bogdanovich [222]

Answer:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.2870.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

Step-by-step explanation:

The estimated proportion of interest is \hat p=0.45

We need to find a critical value for the confidence interval using the normla standard distributon. For this case we have 95% of confidence, then the significance level would be given by \alpha=1-0.95=0.05 and \alpha/2 =0.025.

And the critical value is:z_{\alpha/2}=-1.96, z_{1-\alpha/2}=1.96

The confidence interval for the true population proportion is interest is given by this formula:  

\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}

Replacing the values provided we got:

0.45 - 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.287\\\\0.45 + 1.96\sqrt{\frac{0.45(1-0.45)}{36}}=0.613

And we can conclude at 95% of confidence that the true proportion of interest for this case is between 0.287 and 0.613

5 0
3 years ago
On a given morning the temperature was 71°F. The temperature dropped 5°F and then rose 8°F. How much does the temperature need t
professor190 [17]

Answer:

Step-by-step explanation:

Temperature needs to fall by 3 degrees

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3 years ago
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