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melomori [17]
2 years ago
7

PLEASE help this is easy, I give brainliest! You can do either 1 or 2 just HELP ME!

Mathematics
1 answer:
Triss [41]2 years ago
4 0

Answer:

use the formula of area of polygon...

Step-by-step explanation:

I hope you get it..

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F(x)=2x-6 find f(2) please help
vladimir1956 [14]

Answer:

Step-by-step explanation:

Putting value of x = 2 in the equation

F(2) = 2(2) - 6

= 4 - 6

= - 2

7 0
2 years ago
An exit poll in an election is a survey taken of voters just after they have voted. One major use of exit polls has been so that
3241004551 [841]

Answer:

P(A) = 0.39

Step-by-step explanation:

We are given;

P(W|A) = 0.7

P(W|A^c ) = 0.3

We are told that 60% of the respondents said they voted for A. Thus;

P(A|W) = 60% = 0.6

Now, using the principle of drawing lots, we can be able to find the probability of the event that they are willing to participate in the exit poll which is P(W).

Thus;

P(W) = [P(W|A) × P(A)] +[P(W∣A^c) × P(A^c)]

Now, P(A^c) can be expressed as 1 - P(A)

Thus, we now have;

P(W) = [P(W|A) × P(A)] + [P(W∣A^c) × (1 - P(A)]

Plugging in the relevant values gives;

P(W) = 0.7P(A) + 0.3(1 - P(A))

P(W) = 0.7P(A) + 0.3 - 0.3P(A)

P(W) = 0.3 + 0.4P(A)

Now,using Baye's theorem, we can find an expression for P(A|W)

Thus;

P(A|W) = [P(A ∩ W)]/P(W)

This can be further expressed as;

P(A|W) = [P(A) × P(W|A)]/P(W)

Plugging in relevant values, we have;

0.6 = 0.7P(A)/(0.3 + 0.4P(A))

Cross multiply to get;

0.6(0.3 + 0.4P(A)) = 0.7P(A)

0.18 + 0.24P(A) = 0.7P(A)

0.18 = 0.7P(A) - 0.24P(A)

0.46P(A) = 0.18

P(A) = 0.18/0.46

P(A) = 0.39

7 0
3 years ago
What are the factors of 96
MAVERICK [17]
The factors of 96 are 3,5,7
4 0
3 years ago
Read 2 more answers
How do you know if it is a adding or subtraction problem when you combine like terms?
Snowcat [4.5K]
You look at the sign behind the second term. Here are some examples...

2x + 8 - 4x 
You are going to subtract 2x - 4x because there is a negative sign behind the 4x.

8y + 1 + y
You are going to add 8y + y because there is a positive sign behind the y.

4 + 2x - 5 + 7x
You are going to subtract 4 - 5 because there is a negative sign behind the 5.
You are going to add 2x + 7x because there is a positive sign behind the 7x.
4 0
3 years ago
A coordinate plane with a line passing through points (1, 2) and (4, 4)
Kobotan [32]

A straight line is represented by a linear equation given below.

The points are given as (1, 2) and (4, 4).

Start by calculating the slope (m)

m=\frac{y_2-y_1}{x_2-x_1}

So, we have

m=\frac{4-2}{4-1} \\m=\frac{2}{3}

<h3>What is the slope-intercept form of the line?</h3>

The equation in slope-intercept form is then calculated as:

y=m(x-x_1)+y_1

So, we have:

y=\frac{2}{3}(x-1)+2\\ \\y=\frac{2}{3}(x-4)+4\\

Expand

y=\frac{2}{3}(x-1)+2\\ y=\frac{2}{3} x-\frac{2}{3}+2

Take LCM

y=2/3x+4/3

Multiply through by 3

3y=2x+4

So, the possible equations are:

.3y=2x+4\\y=\frac{2}{3}x+\frac{4}{3} \\y=\frac{2}{3}(x-1)+2\\y=\frac{2}{3}(x-4)+{4}

To learn more about linear equations visit:

brainly.com/question/11897796

#SPJ1

8 0
1 year ago
Read 2 more answers
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