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navik [9.2K]
2 years ago
12

The graph of a function f is shown below. Find f(-2) and find one value of x for which f(x)=-1.

Mathematics
1 answer:
djyliett [7]2 years ago
7 0

Answer:

f(-2) = 3, f(0, -3) = -1

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Marcelina uses a blend of white corn and yellow corn to make tortilla chips at her restaurant. She needs to
UNO [17]

Answer:

Option C. Marcelina spends less that the intended amount of money and buy the correct amount of corn

Step-by-step explanation:

<u><em>The complete picture of the question in the attached figure</em></u>

Let

x---->  is the amount of white corn she buys

y ---> is the amount of yellow corn she buys

we know that

She needs to buy 50 kg of corn in total

so

x+y=50 ----> equation A

She wants to spend $12 dollars total

so

0.30x+0.15y=12 ----> equation B

The solution of the system of equations is the intersection point both graphs

The solution is the point (30,20)

That means

Marcelina needs to buy 30 kg of white corn and 20 kg of yellow corn

we have the ordered pair D(15.35)

That means

15 kg of white corn and 35 kg of yellow corn

therefore

Total kg of corn bought is

15+35=50\ kg\\50\ kg= 50\ kg

Total spend is

0.30(15)+0.15(35)=\$9.75\\\$9.75

therefore

Marcelina spends less that the intended amount of money and buy the correct amount of corn

6 0
3 years ago
Read 2 more answers
5x + 7y = 25<br> 5x - 2y = -65<br> solve using elimination<br> (step by step please)
aliina [53]

5x+7y=25

5x-2y=-65

subtract both of the equations

5x-5x=0

7y--2y= 7y+2y=9y

25--65=25+65=90

0+9y=90

9y=90

divide both sides by 9 to get y by itself

9y/9=90/9

cross out 9 and 9 which becomes 1*1*y=y

90/9=10

y=10

find x by using the substitution method

5x+7y=25

5x+7(10)=25

5x+70=25

move +70 to the other side

sign changes from +70 to -70

5x+70-70=25-70

5x=-45

divide both sides by 5 to get x by itself

5x/5=-45/5

cross out 5 and 5 then becomes 1*1*x=x

-45/5=-9

x=-9

answer:

(-9,10)

6 0
3 years ago
What is the best estimate of the product 3780 times 2
Leviafan [203]

Answer:

7560

Step-by-step explanation:

I used google calculator

6 0
3 years ago
I dO nOt coMprEheNd PLEASE HELPPP
jasenka [17]
Lines y=-x+2 and y=3x+1 intersect the y=axis. If you plot them out on a graph using the equation y=mx+b, then they are parallel and are set on the y-axis.
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3 years ago
she walks up 9 flights of stairs. If there are 13 steps in 1 flight of stairs, how many steps does Kay climb in 5 days at work?
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13 * 9
And then multiply that answer by 5.
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3 years ago
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