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3 years ago

How many solutions does thisquadratic have?f(x) = -4x2 + 12x - 9

Mathematics

1 answer:

BartSMP [9]3 years ago

4 0

Answer:

one, (1.5, 0)

Step-by-step explanation:

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The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day 333 people enter the park, the

liberstina [14]

Answer:

188 children and 145 adults were admitted in the park.

Step-by-step explanation:

Given:

The admission fee at an amusement park is $1.50 for children and $4 for adults.

Total $862 collected on a certain day when 333 people enter the park.

Now, to find the children and adults admitted in the park.

Let the number of children admitted be $x.$

And the the number of adults admitted be $y.$

So, the total people enter the park:

$x+y=333\\\\x=333-y\ \ \ ...(1)$

Thus, the total amount collected of the admission fee:

$1.50(x)+4(y)=862\\\\$

Substituting the value of $x$ from equation (1):

$1.50(333-y)+4(y)=862\\\\499.50-1.50y+4y=862\\\\499.50+2.50y=862\\\\Subtracting\ both\ sides\ by\ 499.50\ we\ get:\\\\2.50y=362.50\\\\Dividing\ both\ sides\ by\ 2.50\ we\ get:\\\\y=145.$

Thus, the number of adults = 145.

Now, to get the number of children by substituting the value of $y$ in equation (1) we get:

$x=333-y\\\\x=333-145\\\\x=188.$

Hence, the number of children = 188.

Therefore, 188 children and 145 adults were admitted in the park.

4 0

3 years ago

-26a-19-35=-84 . show work!!

Wewaii [24]

Step-by-step explanation:

-26a-19-35=-84

-26a-19+(19)-35=-84+(19)

-26a-35=-65

-26a-35+(35)=-65+(35)

-26a=-30

-26a/26=-30/26

7 0

3 years ago

What I would like to know is how to solve this problem

ratelena [41]

30 - 29 = 1 for the first one.

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3 years ago

Helppp I am falling plsss

Virty [35]

I don’t know sorry! ⚠️⚠️ but I hope that you can find the answer

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3 years ago

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3 years ago

How many solutions does thisquadratic have?f(x) = -4x2 + 12x - 9​

How many solutions does thisquadratic have?f(x) = -4x2 + 12x - 9