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kati45 [8]
3 years ago
5

Evaluate: 21x: 8 when x = 4*

Mathematics
1 answer:
Deffense [45]3 years ago
3 0

Answer:

10.5

Step-by-step explanation:

21(4) / 8

84 / 8

10.5

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What is the slope of a line that passes through the points. (-2, 3) and (4, -12)?
Crank

Answer:

5/2

Step-by-step explanation:

5/2

4 0
3 years ago
Simplify the following expression.<br><br><br> A. <br><br> B. <br><br> C. <br><br> D.
Dahasolnce [82]

Answer:

D

Step-by-step explanation:

Let's start by crossing everything out!

12/3 can be crossed out to 4.

a^3/a^2 can be crossed out to a.

b^6/b^4 can be crossed out into b^2.

c^5/c^5 is just 1.

So which the results we got, we can multiply them, so that it is 4ab^2.

4ab^2 is our final answer!

5 0
2 years ago
Can anyone help me with this please
olga_2 [115]

Hi there!

\large\boxed{\frac{1}{4}, -\frac{3}{2}}

13y² + 10y - 3 = 5y²

Begin by moving all terms to one side:

13y² + 10y - 3 - 5y² = 0

Combine like terms:

8y² + 10y - 3 = 0

Factor using the guess-and-check method.

(4y - 1)(2y + 3) = 0

Set each factor equal to 0 to find the solutions:

4y - 1 = 0

4y = 1

y = 1/4

2y + 3 = 0

2y = -3

y = -3/2

8 0
3 years ago
Is a number is like this, 24(pi symbol here) does that mean 24 times 3.14?
VikaD [51]
Yes it does mean that. As long as a number is next to a number with parenthesis with no sign in between, consider it as multiplication.
4 0
3 years ago
Write an expression that represents the statement "add 9 and 3, then multiply by 6."
podryga [215]
An expression for "add 9 and 3, then multiply by 6" is easy
(9+3) 6
12•6
4 0
3 years ago
Read 2 more answers
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