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3 years ago

GIVING BRAINLIEST IF CORRECT PLEASE HELP ASA[P

Mathematics

1 answer:

Vitek1552 [10]3 years ago

3 0

Answer:

A) b= 8 students

B) 1) 19/55 2) 28/55

Step-by-step explanation:

I'm sorry if I'm getting this whole concept wrong cause it felt way too easy to be right so I'm sorry if you get it wrong.

The reason the first question is 8 is because of the fact that you first have to add the students charted on the Venn-diagram and subtract that from 55, getting you to 8 students.

For the second one, the first part would be 19/55 becuase in the Venn-diagram it is shown that only 19 people passed both and so that be the numerator and the denominator would be the total of students, so it would be 55.

Same thing for part two except the fact that you have to add the students who only passed one subject, so combine 17 and 11, getting you to 28, thus getting the answer 28/55.

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What is the value of f(−1) when f(x)=2x+2

mart [117]

Answer:

Step-by-step explanation:

$f(x)=2x+2$

To find f(−1) , substitute the values of x that's - 1 into f(x). That is for every x in f(x) replace it with - 1

That's

$f( - 1) = 2( - 1) + 2 \\ = - 2 + 2$

We have the final answer as

$f( - 1) = 0$

Hope this helps you

7 0

3 years ago

QUICK! WHAT IS THIS ANSWER?

FromTheMoon [43]

Answer:

a)2x-3y

b)4(9a-4)

Step-by-step explanation:

we want to expand the following expression:

$\displaystyle - \frac{1}{4} ( - 8x + 12y)$

well to do so we consider distributive property thus distribute:

$\displaystyle - \frac{1}{4} (- 8x )+ - \frac{1}{4}( 12y)$

reduce fraction which yields:

$\displaystyle - \frac{1}{4} (- 8x )+ - \frac{1}{4}( 12y) \\ \\ \displaystyle 2x + ( - 3y)$

simplify Parentheses:

$\displaystyle \boxed{ 2x - 3y}$

in the expression there's a common factor of 4 therefore factor it out:

$\displaystyle 9.4a - 4.4 \\ \\ \displaystyle \boxed{4(9a - 4)}$

3 0

3 years ago

Plsssss helppp im so lost on this

Alik [6]

Answer:

2n-4>1n+3

Step-by-step explanation:

So basically 2 times a number go together because it means its multiplying and the greater sign is > and then 1 is multiplying with n so its 1n and then you just add 1

3 0

3 years ago

Find the slope of the line through the given points.<br> (8,0) and (10, 10)

postnew [5]

Slope (y2-y1)/(x2-x1)
(10-0)/(10-8) = 10/2 = 5
The slope is 5

6 0

3 years ago

The measure of arc EF is —

Dimas [21]

30 plus EF = 180

Ef = 150

circumscribed angle plus the central angle is 180