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mr Goodwill [35]
3 years ago
5

4n + 8 = 20

Mathematics
2 answers:
Serggg [28]3 years ago
5 0

Answer:

The answer is 3

Step-by-step explanation:

4 x 3 = 12

8 + 12 = 20

qwelly [4]3 years ago
5 0
3 is the answer trust me
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What is the experamental probability that the coin lands on heads?
sammy [17]

Answer:

The experamental probability that the coin lands on head is 50 %

Step-by-step explanation:

Given:

Experiment:

A coin is Toss

Let the Sample Space be 'S' that is total number of outcomes for a coin has been tossed = { Head, Tail }

∴ n ( S ) =  2

Let A be the event of getting a Head on tossing a coin i.e  { Head }

∴ n( A ) = 1

Now,

\textrm{Probability} =\frac{\textrm{outcomes for the experiment}}{\textrm{total number of outcomes}}

Substituting the values we get

P(A) = \frac{n(A)}{n(S)} \\\\P(A) = \frac{1}{2} \\\\P(A) = 0.5\\\\P(A) = 50\%

The experamental probability that the coin lands on head is 50 %

5 0
3 years ago
Convert the equation − x − 2 y = 8 from standard to slope-intercept form
Molodets [167]

Answer:

y = -1/2x - 4

Step-by-step explanation:

We have our equation in standard form: -x - 2y = 8. We can use simplifying rules to isolate y on one side of the equation and give us our y = mx + b format. I'll begin by adding x to both sides.

-x - 2y = 8

-2y = x + 8

Now that we have y on one side, we can divide everything by -2.

-2y/-2 = x/-2 + 8/-2

y = -1/2x - 4

That looks like y = mx + b form.

If you have any further questions or need clarification on anything, let me know!

4 0
2 years ago
SOMEONE HELP PLS!!! I WILL MARK THE PERSON THE BRANLIEST WHOEVER ANSWERS THIS FIRST!!!!! 54 PTS!!!!
gulaghasi [49]

Answer:

2

Step-by-step explanation:

(2/3)3= 2× 3/3 = 2×1 (since 3/3=1)

=2

6 0
3 years ago
Read 2 more answers
Which of the following graphs represents a function that has a positive
frutty [35]

Answer:

you should try scanning that one instead of questioning here

5 0
3 years ago
Which is a solution to (x – 3)(x + 9) = –27?<br><br> x = –9<br> x = –3<br> x = 0<br> x = 6
likoan [24]

Answer:

x = 0

Step-by-step explanation:

Since the product is not equal zero, we need to multiply both parenthesis first:

(x-3)(x+9) =-27

x*x+x*9+(-3)*x+(-3)*9=27

x^2+9x-3x-27=27

x^2+6x-27=27

Add 27 from both sides:

x^2+6x-27+27=-27+27

x^2-6x=0

Factor x out:

x(x+6)=0

Apply the zero product:

x=0,x+6=0

x=0,x=-6

The solutions of the equation are x=0 and x=-6.

We can conclude that the correct answer is x = 0.

7 0
3 years ago
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