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Rina8888 [55]
3 years ago
12

Exercises 1-3, tell which equation you would choose to solve for one of the variables. Explain.

Mathematics
2 answers:
Archy [21]3 years ago
7 0
I would choose the 1 first one
Oksi-84 [34.3K]3 years ago
4 0

Answer:

1, because you can subtract both equations to eliminate y , and you will be left with only x.

Step-by-step explanation:

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Answer:

numbers are 33 and 7

Step-by-step explanation:

x+y=40

4y+5+y=40

5y+5=40

5y=35

y=7

x=4y+5=4(7)+5=28+5=33

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The ages and grades of some of the 18 girls on a club soccer team are shown in the table.
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Step-by-step explanation:I just did this one and got it correct

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I HAVE 2 MINS TO FINSIH PLZ HELP
IceJOKER [234]

Answer:

The answer is 45

Step-by-step explanation:

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Read 2 more answers
Lillian kicks a football. Its height in feet is given by h(t)= -16t^2+72th(t)=−16t 2 +72t where tt represents the time in second
Hitman42 [59]

The after 9/4 seconds the football is at its highest point which is 81 feet if Lillian kicks a football. Its height in feet is given by h(t)= -16t²+72t

<h3>What is a parabola?</h3>

It is defined as the graph of a quadratic function that has something bowl-shaped.

\rm  h(t)= -16t^2+72t

Making perfect square:

\rm  h(t)= -[(4t)^2-72t+9^2 -9^2]

\rm  h(t)= -[(4t-9)^2 -81]

\rm  h(t)=  81-(4t-9)^2

The highest point will be when term (4t-9)² becomes zero

So the highest point = 81 feet, and it takes:

t = 9/4 seconds

Thus, the after 9/4 seconds the football is at its highest point which is 81 feet if Lillian kicks a football. Its height in feet is given by h(t)= -16t²+72t

Learn more about the parabola here:

brainly.com/question/8708520

#SPJ1

7 0
2 years ago
Sophia needs $47 to go on a field trip. She has saved $11.50. She earns $6.50 per hour cleaning her neighbor's garden, and she e
laiz [17]
<span>a) Yes, because the total will be $48
hope i helped</span>
6 0
3 years ago
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