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serg [7]
2 years ago
10

What websites are similar to brainly?

Mathematics
1 answer:
Maslowich2 years ago
7 0

Websites similar to Brainly: Quizlet and Socratic

Can I pls have brainliest :(

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1.1 x 10^3 - 4.9 x 10^2
MArishka [77]

Answer:

610

Step-by-step explanation:

10 to the power of 3 is 1000. 1000x1.1=1100. 10 to the power of 2 is 100. 100x4.9=490. 1100-490=610

8 0
3 years ago
Would someone explain this
Romashka [77]

The answer is C 3n+2

3 0
3 years ago
Read 2 more answers
Jeff has a density of 1000 g/mL and a volume of 25-mL. What is Jeff’s mass?
zlopas [31]

Answer:

25,000 grams

Step-by-step explanation:

Density can be found using the following formula:

d=\frac{m}{v}

If we rearrange the formula for m, mass, we will multiply both sides of the equation by v.

d*v=\frac{m}{v}*v

d*v=m

The mass can be found by multiplying the density by the volume.

Jeff's density is 1000 grams per milliliter and his volume is 25 milliliters.

d= 1000 g/mL\\v=25 mL

Substitute the values into the formula.

m=d*v

m= 1000 g/mL * 25 mL

Multiply. When you multiply, the "mL" or milliliters will cancel out.

m= 1000 g * 25

m= 25000 g

Jeff's mass is 25,000 grams.

6 0
3 years ago
Use the quadratic formula to find the complex solutions to the equation 10x2 – x + 9 = 0.
melomori [17]

Quadratic formula: (-b +/- sqrt(b^2 - 4ac)) / 2a

a = 10

b = -1

c = 9

1 +/- sqrt((-1)^2 - 4(10)(9)) / 2(10)

1 +/- sqrt(1 - 360) / 20

x = 1 +/- sqrt(359i) / 20

Hope this helps!

7 0
3 years ago
A radio station requires DJs to play 2 commercials for every 10 songs they play.What is the unit rate of songs to commercial?
slavikrds [6]
The correct answer for this question is that the unit rate is 5:1. We can work this out by simplifying down the 2 commercials to every 10 songs ration, so that 10:2 becomes 5:1. We can work this out by halving the original ratio to simplify it.
5 0
3 years ago
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