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2 years ago

The first three terms of an arithmetic sequence are as follows.

Mathematics

1 answer:

Delvig [45]2 years ago

7 0

Answer:

13, 8, 3

Step-by-step explanation:

Subtract 5 from the following terms.

Mark me as the brainliest please, Thank you!

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Antonio is standing on a at the edge of a canyon. He yells loudly and hears an echo 1.2 s later. How far away is the other side

Maurinko [17]

Answer:

204 m
1700 m

Step-by-step explanation:

a) In 1.2 seconds, sound will travel a distance of ...

(1.2 s)(340 m/s) = 408 m

This is the round-trip distance, so the reflecting surface is half that distance away.

The other side of the canyon is 204 m away.

b) In 5 seconds, the sound will travel a distance of ...

(5 s)(340 m/s) = 1700 m

This is the one-way distance, so the lightning is about 1700 m away.

6 0

2 years ago

Find the zeros of y=x^2-8x-3

Anton [14]

This is gonna be the answer. It’s 4+sqrt(19) and 4-sqrt(19). Which is approximately 8.36 and -0.36. In x intercept form, it’s (8.36,0) and (-0.36,0) also I solved this by completing the square. I hope this helps!!! Mark as brainliest!!!

4 0

2 years ago

I really need some help on this question

Leya [2.2K]

Answer:

What is the car's rate in kilometers per minute?

$0.9\frac{km}{min}$

How many kilometers will the car travel in 5 minutes?

$4.5\ km$

Step-by-step explanation:

If we know:

$\frac{54\ km}{1\ hour}$

And there are 60 minutes in an hour:

$\frac{1\ hour}{60\ minutes}$

We can do:

$\frac{54\ km}{1\ hour} * \frac{1\ hour}{60\ minutes} = \frac{54\ km}{60\ minutes} = 0.9 \frac{km}{min}$

From here, we figure out the distance from minutes:

$0.9\frac{km}{min} * 5 = 4.5\ km$

3 0

2 years ago

The sets D and J are given below.

sveta [45]

D n J = {7,8} (intersection)

Values that satisfy both sets.

D u J = {-1,1,4,5,7,8} (union)

All values present in both sets.

3 0

3 years ago

Solve the inequality below for g.

tiny-mole [99]

Answer:

the answer to the inequality is C. g<1

8 0

2 years ago