2 years ago

Please help, im super behind :(((

Mathematics

1 answer:

Verdich [7]2 years ago

8 0

Answer:

the first one is a function! there are no repeated x values in a function

You might be interested in

Four less than a number is twenty

Solnce55 [7]

The answer would be 24 because 24-4 is 20

7 0

2 years ago

Read 2 more answers

Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen. She has 32 m

MAXImum [283]

Answer:

<h3> The width (side perpedicular to the barn): <u>x = 8 m</u></h3><h3> The lenght (side parallel to the barn): <u>y = 16 m</u> </h3>

Step-by-step explanation:

x - the width of the barn

She has 32 m of fencing so for the lenght remain (32-2x) m of fencing:

y = 32 - 2x

Area of the fencing: A = x•y

A(x) = x•(32 - 2x)

A(x) = -2x² + 32x ← quadratic function

The maximum value of quadratic function occurs at: $x=-\frac b{2a}$

a = -2, b = 32

$x=-\frac b{2a}=-\frac{32}{2\cdot(-2)}=-(-8)=8$

32-2x = 32 - 2•8 = 16

4 0

2 years ago

If 1/a + 1/b =1/c and ab=c,what is the average of a and b?

goblinko [34]

If we solve the left side of the given equation,
1/a + 1/b = 1/c
we get an answer of,
b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5.

4 0

2 years ago

tensa zangetsu [6.8K]

The answer should be 242.75 cubic centimeters!!

4 0

2 years ago

Given the ratio 2 green to 4 pink to 3 yellow (2:4:3), in a bag of 27 jellybeans, how many yellow jellybeans are in the bag?

ohaa [14]

2+4+3=9
27:9=3
2*3=6
4*3=12
3*3=9
So:green:6
Pink:12
Yellow:9

3 0

3 years ago