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kramer
3 years ago
13

I don’t need you to explain just answer.

Mathematics
1 answer:
Mama L [17]3 years ago
5 0

Answer:

-4 <x< -2

Step-by-step explanation:

you need to plot the line between -4 and -2

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Sara has lived 18.0 years. How many seconds has she lived? Express the answer in scientific notation. Use 365.24 days per year f
Contact [7]

Answer:

She has lived 5.68021248\times 10^8\ \text{seconds}.

Step-by-step explanation:

Given : Sara has lived 18.0 years.

To find : How many seconds has she lived?

Solution :

Using conversions,

1 year = 365.24 days

1 day = 24 hours

1 hour = 60 minutes

1 minute = 60 seconds

Converting 18 years into seconds,

18 \text{years} = 18\times 365.24\times 24\times 60\times 60\ \text{seconds}

18 \text{years} =568021248\ \text{seconds}

In scientific notation,

18 \text{years} =5.68021248\times 10^8\ \text{seconds}

Therefore, she has lived 5.68021248\times 10^8\ \text{seconds}.

4 0
3 years ago
Which measure is equal to 340 l a.340,000 ml b.3,400,000 ml c.0.034 ml d.3.4 ml
Whitepunk [10]
It's either A or B I'm not sure which but it is one of them thats correct sorry if this doesn't help that much
8 0
3 years ago
Each week your science teacher gives a fifteen-point quiz. Your current scores are shown in the table. What is your mean quiz sc
xxTIMURxx [149]

Answer:

12.

Step-by-step explanation:

To find the mean of a group of data, you add up all of the numbers and divide the total by the amount of numbers there are. In this case, you have 15,11,10,11,14,10,15,10,and 12.

All of those numbers added together is 108.

108 divided by 9 numbers, or weeks, is 12.

The average, or mean, is 12.

8 0
2 years ago
Read 2 more answers
What is the number of sides of a regular n gon if one of the extierior angles is 40 degrees?
sertanlavr [38]
Sum of all exterior angles = 360°

Size of one exterior angle = 40°

Number of sides = 360 ÷ 40 = 9

-----------------------------------------------------------
Answer: There are 9 sides to this polygon.
-----------------------------------------------------------

4 0
2 years ago
I have a question that has already been answered. I just need someone to please explain the steps.
Jobisdone [24]

Answer:

Step-by-step explanation:

Using brackets will really help.

y = (x^2 + 4x + ... ) - 5       You are trying to complete the square. The square in this case is a trinomial that is squared.

To do that, you take 1/2 the linear term (4x)/2, drop the x (4/2), and square the result (4/2)^2. The number is 2^2 which is 4.

So far what you have is

y = (x^2 + 4x + 4) - 5  

Now you just can't add 4 without adjusting it somehow. If you do, the whole question will change it's value. Because you added 4 inside the brackets, you must subtract 4 outside the brackets.

What that means is 4  inside - 4 outside. So it looks like this

y = (x^2 + 4x + 4) - 5 - 4

Now you continue on

y = (x + 2)^2 - 9  The 4 combines with the 5 to make nine.

8 0
2 years ago
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