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Naddik [55]
3 years ago
8

Help me please that's problem number3 .help me

Mathematics
1 answer:
Firlakuza [10]3 years ago
5 0

A) Both walked 3.5 hours.

B) Hannah walked 3.5 x 3 = 10.5 miles.

For Hannah you multiplied her rate by the time to get total distance.

Penelope walked 7 miles, the black dot on the graph is at the 7 miles on the distance.

C) Hannah walked a faster rate, because she walked further in the same amount of time.

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Is the following sequence arithmetic? If so, what is the common difference?
Vsevolod [243]

Given:

The sequence is

1, 2, 4, 8, 16, ...

To find:

Whether the given sequence is arithmetic or not. If yes, then find the common difference.

Solution:

We have,

1, 2, 4, 8, 16, ...

Difference between consecutive terms are

d_1=a_2-a_1

d_1=2-1

d_1=1

Similarly,

d_2=a_3-a_2

d_2=4-2

d_2=2

Since, d_1\neq d_2, therefore the given sequence have no common difference between consecutive terms.

So, the given sequence is not arithmetic.

Therefore, the correct option is c.

7 0
3 years ago
Suppose that populations of men and women have the following summary statistics for their heights (in
Dominik [7]

Answer:

.13

Step-by-step explanation:

172-162 = 10  

 

We can find the standard deviation of D by adding the variances of the heights and taking the square root:

σ  

D

2

​  

 

σ  

D

2

​  

 

σ  

D

​  

 

​  

 

=σ  

M

2

​  

+σ  

W

2

​  

 

=7.2  

2

+5.4  

2

 

square root of 81

=9

​  

Representing probability with area

When D= M-W =0, their heights are equal. When the man is taller, D is positive, and when the woman is taller, D is negative. Since we know the distribution of the difference D is normally distributed, the probability that the woman is taller than the man can be found by calculating the shaded area below D=0, in the corresponding normal distribution:

A standard normal curve is plotted on a horizontal axis representing D, that goes from negative 17 to 37. The mean, or mu sub D, = 10. The standard deviations, or sigma sub D = 9. The value 0 is marked. The area under the curve to the left of 0 is shaded, representing the probability that the woman is taller. The area to the right represents the probability that the man is taller.

normalcdf:

lower bound: −9999

upper bound: 0

μ=10

σ=9

​  

7 0
4 years ago
Read 2 more answers
In a class of 18 children, 13 have pet dogs at home, 11 have pet cats, and 8 have both. How many kids do not have four-legged pe
8_murik_8 [283]

Answer:

2 people

Step-by-step explanation:

8 have both that means that of the 11 people that have cats 3 have only cats and of the 13 that have dogs 5 only have dogs therefore 2 people don't have four-legged animals at home

8 0
3 years ago
Read 2 more answers
Who wants to watch some henti with me
melomori [17]

Answer:

SOAP TRUSTED YOU!

I THOUGHT I COULD TOO

SO WHY IM BLOODY HELL DOES MAKOROV KNOW YOU!!!

7 0
3 years ago
Radius of a circle with an area of 907.9 centimeters
Roman55 [17]
\bf \textit{area of a circle}\\\\
A=\pi r^2~~
\begin{cases}
r=radius\\
-----\\
A=907.9
\end{cases}\implies 907.9=\pi r^2
\\\\\\
\cfrac{907.9}{\pi }=r^2\implies \sqrt{\cfrac{907.9}{\pi }}=r
3 0
3 years ago
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