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3 years ago

Please help

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

7 0

I'm pretty sure it's A.

But don't count on it

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Vera_Pavlovna [14]

Answer:

$\frac{16}{12} =1\frac{1}{3}$

$1\frac{5}{8}= \frac{13}{8}$

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3 years ago

What is the square root of 5 plus the square root of 5

Charra [1.4K]

Answer:

That would be approximately 4.47.

6 0

3 years ago

Which line contains the point (3,6)

spayn [35]

Many lines do. One of them would be y = 2x

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2 years ago

Are women better at multitasking than men? Researchers conducted a multitasking experiment in which 120 men and 120 women played

stich3 [128]

Answer:

Yes, women better at multitasking than men.

Step-by-step explanation:

Given

$n_1=120$ --- Men

$n_2=120$ --- Women

$\bar x_2 > \bar x_1$ --- Women with greater average speed

Required

Does women better at multitasking?

When making comparison between two variables that are subjected to the same conditions;

If both variables have different mean values; the variable with the greater mean value performs better.

So, in this case:

$\bar x_2 > \bar x_1$ means that women perform better than men, at multitasking.

5 0

2 years ago

You bike 1 mile the first day of your training, 1.3 miles the second day, 1.9 miles the third day, and 3.1 miles the fourth d

JulsSmile [24]

Answer:

19.9 miles

Step-by-step explanation:

In this problem we have:

$d_1=1 mi$ is the distance travelled during the 1st day

$d_2=1.3 mi$ is the distance travelled during the 2nd day

$d_3=1.9 mi$ is the distance travelled during the 3rd day

$d_4=3.1 mi$ is the distance travelled during the 4th day

We notice that the difference between the distance travelled on the (n+1)-th day and the distance travelled on the n-th day doubles every day. In fact:

$d_2-d_1=0.3\\d_3-d_2=2\cdot 0.3 = 0.6\\d_4-d_3=2\cdot 0.6 = 1.2$

Which can be rewritten using the general formula:

$d_{n+1}-d_n=2(d_n-d_{n-1})$

This means that

$d_{n+1}=d_n+2(d_n-d_{n-1})$

By applying this formula recursively, we can find the 7th term, which is the distance travelled on the 7th day:

$d_1=1\\d_2=1.3\\d_3=1.9\\d_4=3.1\\d_5=3.1+2\cdot 1.2=5.5\\d_6=5.5+2\cdot 2.4=10.3\\d_7=10.3+2\cdot 4.8=19.9 mi$

So, the distance travelled on the 7th day is 19.9 miles.

7 0

3 years ago