Is this scientific notation? 0.99×10^12

* WILL GIVE BRIANLIEST 5 QS PLZZ HELP MEH ;D*(07.01)What is the solution to the equation 5x = 40?

Maru [420]

Hello there! :)

Answer:

1. B. 8. and x=8

*The answer must have a positive sign.*

2. D. Infinitely many.

3. D. -1 and y=-1

*The answer must have a negative sign.*

4. C. He didn't add 13 to 26.

5. B. 4 and y=4

*The answer must have a positive sign.*

Step-by-step explanation:

1. First, you divide by 5 from both sides of an equation.

$\frac{5x}{5}=\frac{40}{5}$

Then, simplify.

$40/5=8$

Answer: → $\boxed{x=8}$

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2. 4x=4x both sides are equal and it's true.

Answer: $\boxed{D.}$

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3. First, switch sides of an equation.

$y+9=8$

Then, you subtract by 9 from both sides of an equation.

$y+9-9=8-9$

Simplify and solve.

$8-9=-1$

Answer: → $\boxed{y=-1}$

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4. First, add by 13 from both sides of an equation.

$x-13+13=26+13$

Then simplify and solve.

$26+13=39$

Answer: $\boxed{x=39}$ and $\boxed{C.}$

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5. First, subtract by 9 from both sides of an equation.

$y+9-9=13-9$

Then simplify and solve.

$13-9=4$

Answer: $\boxed{y=4}$

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Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

6 0

3 years ago

A farm raises a total of 220 chickens and pigs. The number of legs of the stock in the farm totals 520. How many chickens and pi

ozzi

There are 220 chickens and pigs on the farm.

8 0

3 years ago

Larry says all numbers that have a 2 in their ones place are composite. Explain if Larry is correct or incorrect.

inysia [295]

Answer:

Larry would be wrong if 2(as a prime number) is part of the numbers that has 2 at its ones place, but if 2 is not there, then he is correct.

Step-by-step explanation:

Firstly, we need to know what a composite number is. In simple terms, a composite number is a number that is not a prime number. Meaning that, if a number has more than two factors (1 and itself which is the definition for a prime number), then the number is a composite number.

Larry says all numbers that have 2 in their ones place are composite. It depends, if 2 is the only number that makes up the digit, that is the number itself is 2, then it's obviously a prime number. But any other number having 2 at its ones place is definitely a composite number because the number has more than 2 factors; 1, itself and 2. Example:

12, some of the factors is 1, 12 and 2. Therefore it is a composite number.

Larry would be wrong if 2(as a prime number) is part of the numbers that has 2 at its ones place, but if 2 is not there, then he is correct.

4 0

3 years ago

X y

shutvik [7]

Step-by-step explanation:

the unit rate of y per x :

9/3 = 18/6 = 27/9 = 36/12

all the results = 3

the right answer is B) 3

7 0

3 years ago

What is the midpoint of (-5,6) (8,-6)

MAXImum [283]

Answer:

The answer is

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

$M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-5,6) (8,-6)

The midpoint is

$M = ( \frac{ - 5 + 8}{2} \: , \: \frac{6 - 6}{2} ) \\ = ( \frac{3}{2} \: , \: \frac{0}{2} )$

We have the final answer as

$( \frac{3}{2} \: , \: 0)$

Hope this helps you

8 0

3 years ago