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grandymaker [24]

2 years ago

15

27. Is the following relation a function?

2 answers:

Sunny_sXe [5.5K]2 years ago

8 0

Answer:

No

Step-by-step explanation:

27 No

28.A

you are to read it maximum and minimum point on the vertical axis

Sindrei [870]2 years ago

6 0

Hmm I’m not sure I understand

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Help please <br> Brainiest answer to whoever is first

Degger [83]

Should be 1204.75? use this answer to check your work!

My work:
14 times 18 (since there’s two triangles) = 252
36 times 28 = 1008
6.5 times 8.5 = 55.25

(1008 + 252) - 55.25 = 1204.75

6 0

2 years ago

X^2 + 18x + c = 25 +c

svet-max [94.6K]

Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)

7 0

2 years ago

Luigi is an urban planner. as an independent contractor, he charges $140 fee plus $ 25 per hour for each contract with the city.

yaroslaw [1]

x = hours 25 per hour = 25x

y = total

so y = 25x +140

6 0

2 years ago

Read 2 more answers

PLEASE HELP PLESD PLED

-BARSIC- [3]

Answer:

<h2>x = 35</h2>

Step-by-step explanation:

Because the angles are vertical angles, they must be equal.

3x + 7 = 112

3x = 105

x = 35

Check

3(35) + 7 = 112

112 = 112 Correct

7 0

2 years ago

Read 2 more answers

Mike bought five items for lunch that Cost a total of 4.55 .Hit dogs cost .1.10 each and cookies cost 0.75 each. What equation c

-Dominant- [34]

Answer:

$c + h = 5$ and

$0.75c + 1.10h = 4.55$

Step-by-step explanation:

Assume that Mike bought only cookies and hot dogs.

The total can be represented as:

$Cookies + Hot\ Dogs = 5$ --- (1)

And the amount spent can be represented as:

$Cost\ of\ cookies + Cost\ of\ hot\ dogs = 4.55$ --- (2)

Required

Determine the system of equation

Let c represents the number of cookies and h, number of hot dogs.

$Cookies + Hot\ Dogs = 5$ implies $c + h = 5$

And

$Cost\ of\ cookies + Cost\ of\ hot\ dogs = 4.55$

Cost of cookies = 0.75 * c

Cost of hot dogs = 1.10 * h

So, we have:

$0.75c + 1.10h = 4.55$

Hence, the equations are:

$c + h = 5$ and

$0.75c + 1.10h = 4.55$

Solving for c and h

Make c the subject in $c + h = 5$

$c = 5 - h$

Substitute 5 - h for c in $0.75c + 1.10h = 4.55$

$0.75(5- h) + 1.10h = 4.55$

$3.75- 0.75h + 1.10h = 4.55$

$3.75 +0.35h = 4.55$

Collect Like Terms

$0.35h = 4.55 - 3.75$

$0.35h = 0.8$

Solve for h

$h = 0.8/0.35$

$h = 2.28571428571$

$h =2$ -- approximated

Recall that:

$c = 5 - h$

$c = 5 - 2$

$c =3$

5 0

2 years ago