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3 years ago

6)

2 answers:

7 0

If Tim was 27 years old 9 years ago, that’s the same as 27 + 9 = x where x is his current age.

We can rearrange this and bring 9 to the other side.

27 = x - 9

The last option D is correct.

Dvinal [7]3 years ago

6 0

Answer:

It has to be x - 9= 27

so it can be x=36

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Is there any way to post images on your questions?

AysviL [449]

yeah there is u should be able to by clicking on the paper clip

7 0

2 years ago

What is an expression to represent the equation

Tatiana [17]

Answer:

8 + $\frac{x}{4}$

Step-by-step explanation:

I'm assuming you want an answer to the top section of the question.

We can start with 8.

When a problem asks for the sum, it's looking for addition, so we use the + sign.

8 +

The problem says "a number," so let's represent that with x. Basically, x just means a number we don't know.

8 + x

The "number" is divided by 4, so we'll just put x/4 as our second term.

8 + $\frac{x}{4}$

7 0

3 years ago

Which of the following is the discriminant of the polynomial below x^2+4x+5

steposvetlana [31]

Answer:

$\huge\boxed{\sf Discriminant = -4}$

Step-by-step explanation:

Comparing it with quadratic equation $ax^2 + bx + c = 0$ , we get:

a = 1 . b = 4 and c = 5

So,

Discriminant = $b^2-4ac$

D = (4)²-4(1)(5)

D = 16 - 20

D = -4

Hence,

Discriminant = -4

$\rule[225]{225}{2}$

Hope this helped!

4 0

2 years ago

I need help finding this answer because I am pretty sure it’s C but I don’t know

malfutka [58]

Answer: A) -9

Step-by-step explanation:

If x = -2

Then $3^{x}$ = $3^{-2}$

So, it is -9

5 0

2 years ago

An equivalent expression to a2/3

scoundrel [369]

Answer:

4/6 6/9 8/12 10/15 and so on, just multiply both the numerator and denominator by the same number and get your answer.

Step-by-step explanation:

6 0

3 years ago