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2 years ago

I need to know the answer for 15, if you can please show your work

Mathematics

1 answer:

Verizon [17]2 years ago

6 0

Answer:

The answer is: D. 6.9 x 10^5

Step-by-step explanation:

To find the answer, you simply need to convert the scientific notation into normal notation and then divide the largest value by the smallest value.

Scientific Notation Normal Notation

3.45 E 9 3,450,000,000

0.5 E 4 5000

Divide these values and you get:

690,000

6.9 E 5

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Let f(x)=x+7 and g(x)=x-4 Find f(x) x g(x)

Sveta_85 [38]

Answer:

C. x²+3x-28

Step-by-step explanation:

f(x) = x +7

g(x) = x -4

f(x) · g(x) = (x-4)(x+7)

= x²+7x-4x-28

= x²+3x-28

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3 years ago

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2 years ago

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Sphinxa [80]

Answer: ? Wha?

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Absolute value equation question, pls explain if u don't I will literally die

ladessa [460]

Answer:

-10

Step-by-step explanation:

I dont want you to "Literally die" so heres the explaination:

The absolute value mean always a positive number. So if a number is positive and it has the absolute value symbol next to it then it is positive. If the number is negative than it become positive. With that say, we can began to solve our linear equation.

We shoudl first isolate the variable so let's subtract the number 8 from BOTH SIDES. So now we should have -24=-12(k/5)

Now we will use the disributive property. this will give us:

-24=(-12k/5)

BUT WAIT!! THE ABSOLUTE VALUE RULE MUST BE APPLIED!!

Therefore it should be -24=12k/5

Now we can just solve this regularly:

Keep reading if you don't know how to solves linear equations.

Multiply 5 to both sides:

-120=12k

k=-10

6 0

2 years ago

A rectangular swimming pool has a length twice as long as its width. The pool has a sidewalk around it that is 2 feet wide. Writ

xxMikexx [17]

Answer:

$A_p=2w^2$

$A_s=12w+16$

Step-by-step explanation:

Functions and Geometry

Sometimes we need to express areas, volumes, and distances in terms of unknown quantities (or variables). When we can find such expressions, they can be referred to as functions. Let's recall the area of a rectangle is A=wl, being w its wide and l its length

Please refer to the image below. The length of the swimming pool is l and its width is w. Its area is

$A_p=lw$