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4 years ago

The function models the number of accidents

Mathematics

1 answer:

Ainat [17]4 years ago

6 0

Answer:

f(60)=280

Step-by-step explanation:

f(x)=0.4x²-36x+1,000

x=60→f(60)=0.4(60)²-36(60)+1,000

f(60)=0.4(3,600)-2,160+1,000

f(60)=1,440-2,160+1,000

f(60)=280

This mean that a driver of 60 years old will have 280 accidents per 50 million miles driven.

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Approximately 3 out of every 25 people are left-handed. How many left-handed

Liono4ka [1.6K]

Answer: 198 left handed students

Step-by-step explanation:

You have to divide the 1650 by 25 and that equals 66 then multiply by 3 and that equals 198

3 0

3 years ago

12) A new amusement park decides to offer its visitors a choice between two plans. With Plan 1 they pay $6 to enter

astraxan [27]

9514 1404 393

Answer:

3 rides
$16.50

Step-by-step explanation:

The plan 1 cost for x rides will be ...

y = 6 + 3.50x

The plan 2 cost for x rides will be ...

y = 12 + 1.50x

These costs will be equal when ...

y = y

6 + 3.50x = 12 + 1.50x . . . . . substitute for y

2.00x = 6 . . . . . . . . . . . . . subtract 6+1.50x

x = 3 . . . . . . . . . . . . . . . divide by 2

For 3 rides, the cost will be the same.

For 3 rides the cost is ...

y = 6 + 3.50(3) = 6 + 10.50 = 16.50

The cost for 3 rides will be $16.50 for either plan.

7 0

3 years ago

Annette has 9 more dimes than quarters. the total amount is 8.25. how many of each coin dies she have?

ZanzabumX [31]

Even then, the resulting error coins will NOT be doubled dies. Only proof coins are struck more than once with the number of times that they are struck depending on the alloy of the planchets that will be struck into coins.

7 0

3 years ago

Rationalise the denominator and simplify 10 over 3 root 5

ozzi

$\frac{10}{3 \sqrt{5} }$ x $\frac{ 3\sqrt{5} }{3 \sqrt{5} }$
would be $\frac{30\sqrt{5} }{9 \sqrt{25} }$ .
Root 25 is 5, so 9*5 = 45
so the answer is $\frac{30\sqrt{5} }{45 }$ .

8 0

4 years ago

Read 2 more answers

Find the distance from the point (1, 4) to the line y = 1/3x – 3. A) 2(square root) 10 units B) 4 units C) 4(square root) 2 unit

Oksi-84 [34.3K]

Answer:

Distance between line and point =

4√5 -3/2√10

Step-by-step explanation:

Distance between the line is

= √ ((9-0)²+(0+1)²)

= √ (89+1)

= √90

= 3√10

Half of the line = 3/2√10

Distance of one side of the line and the point.

= √((9-1)²+(0-4)²)

= √((8)²+(-4)²)

=√64+16

= √80

= 4√5

Distance between line and point =

4√5 -3/2√10

6 0

4 years ago