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Daniel [21]
3 years ago
10

amy and her family were traveling during their vacation. she looked at her watch at point 1 in the diagram below, and then again

at point 2 in the diagram below. her mom told her how far they traveled in that time as noted below
Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
3 0
So if in 2 hours you drove 80 miles the in 1 hour you have to have driven 40 miles (80m/2h)
so you have to divide the 1200 miles by the 40mph to find out how many hours the trip will take (1200m/40mph=30h)
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An advertisement for a popular weight-loss clinic suggests that participants in its new diet program lose, on average, more than
Sauron [17]

The test statistic for the hypothesis would be 1.413.

Given that the participants in its new diet program lose, on average, more than 13 pounds and the mean weight loss of these participants as 13.8 pounds with a standard deviation of 3.1 pounds.

The objective is to text the advertisement's claim that participants in new diet program lose weight, on average, more than 13 pounds.

Hypothesis:

Null hypothesis:H₀:μ=13

Alternative hypothesis:Hₐ:μ>13

Here, μ be the mean weight loss of all participants.

n=30,

Degree of freedom n-1=30-1=29

\bar{x}=13.8 and s=3.1

To test the null hypothesis H₀, the value of test static would be calculated as follows:

\begin{aligned}t&=\frac{\bar{x}-\mu}{\frac{s}{\sqrt{n}}}\\ t_{29}&=\frac{13.8- 13}{\frac{3.1}{\sqrt{30}}}\\ &=\frac{0.8}{0.566}\\ &=1.413\end

Hence, the value of the test static for the hypothesis with the mean weight loss of these participants as 13.8 pounds with a standard deviation of 3.1 pounds is 1.413.

Learn more about hypothesis from here brainly.com/question/14783359

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6 0
2 years ago
HURRY ONLY HAVE 1 MIN!!!!!!!!!!!!!!!!
BaLLatris [955]

Answer:

100 m3

Step-by-step explanation:

2*5*10 = 10*10 *100

6 0
2 years ago
How do you write 41,300 in scientific notation?​
Nuetrik [128]

Answer: 4.13 x 10^4

Step-by-step explanation: You have to just count the places such as the tens all the way to the thousands which leaves you with the exponent of 4.

5 0
3 years ago
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Please answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
vaieri [72.5K]

Add the ratios together:

5 + 2 + 1 = 8

Divide the length of NQ by that:

24/8 = 3

Multiply the ratio of NO by that/l

The ratio of NO is 5, 5 x 3 = 15

NO = 15

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3 years ago
Which equation would shift the parabola down 3 units? A) y = x2 B) y = x2 - 3 C) y = x2 + 3 D) y = (x + 3)2
mrs_skeptik [129]

Answer

x^2-3

Step-by-step explanation:


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3 years ago
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