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mina [271]
3 years ago
9

Nick has 5 hours of practice per day. Passing drills make up 2/3 of his total practice.

Mathematics
1 answer:
Effectus [21]3 years ago
4 0

Answer: 5 hours

More then four

Step-by-step explanation:

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One of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average
Nonamiya [84]

Answer:

0.0930

Step-by-step explanation:

Given that one of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average, 6 days.

she tests a one-sided alternative about the population mean cold duration when drinking coffee, H0: μcoffee = 6 Ha: μcoffee < 6 She finds z = −1.68 with one-sided P-value P = 0.0465.

If hypotheses changed to two tailed as:

H_0: \mu_{coffee}  = \mu_{tea}\\H_a: \mu_{coffee}\neq \mu_{tea}

(Two tailed test)

Since we have mean difference and std error the same, test statistic would remain the same.

p value for two tailed would be = twice the p value for one tail

=2(0.0465)\\= 0.0930

6 0
3 years ago
A recipe for individual chocolate hazelnut tarts calls for ½ cup of hazelnuts per tart. If 1 cup of hazelnuts weighs 4 ounces, w
DerKrebs [107]

Answer:

The amount is sufficient to make 75 tarts.

Step-by-step explanation:

We have been given that a recipe for individual chocolate hazelnut tarts calls for ½ cup of hazelnuts per tart and 1 cup of hazelnuts weighs 4 ounces.

The half cup of hazelnuts will weigh 2 ounces (\frac{4}{2}=2).

1 kg equals 35.274 ounces.

\text{5 kg}=5\times 35.274\text{ ounces}

\text{5 kg}=176.37\text{ ounces}

Since each tart needs  ½ cup of hazelnuts and half cup of hazelnuts will weigh 2 ounces, so we will divide 176.37 ounces by 2 to find number of tarts.

\frac{176.37}{2}=88.185\approx 88

Since we can make 88 tarts from 5 kg hazelnuts, therefore, the 5-kilogram bag of hazelnuts be sufficient to make 75 tarts.

7 0
3 years ago
Find the length of side a.<br> please help?
GaryK [48]

Answer:

Hello! I believe your answer is a = 3

Step-by-step explanation:

a= \sqrt{5^{2}-4^{2} } = 3

Have a good day! - Zac

8 0
2 years ago
Read 2 more answers
I jus need confirmation to see if I got the correct answer. If it is wrong could you please help me with it.
-Dominant- [34]

Answer:

It looks right to me

Step-by-step explanation:

5 0
2 years ago
Find the second derivative of the function P(t) =(2t+4)/(t+1)
vitfil [10]

use the quotient rule then after using it the first time use it again on your resulting equation, since you are looking for the second derivative

3 0
2 years ago
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