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klio [65]
2 years ago
9

The traffic flow rate (cars per hour) across an intersection is

Mathematics
1 answer:
Zanzabum2 years ago
8 0

Answer:

990 cars

Step-by-step explanation:

Find how many cars pass through at 6am, t=0:

r(0)= 300+600(0)-90(0²) = 300

Find how many cars pass through at 9am, t=3:

r(3)= 300+600(3)-900(3²)=300+1800-810=1290

Find the difference (how many cars pass between 6am and 9am): 1290-300=990

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There are 7 roses in a vase of 16 flowers. The rest are daisies.
Greeley [361]

Answer:

(a) 7:9 or 7 to 9 or \frac{7}{9}

(b) 9:16 or 9 to 16 or \frac{9}{16}

Step-by-step explanation:

The first thing you need to figure out is how many daisies are in the vase. There are 9. So the answer to question a is 7 roses to 9 daisies. The answer to question b is 9 daisies to 26 total flowers in the vase.

I wrote #:# or # to # or \frac{#}{#}#/# because these are all of the ways you can write a ration. I wasn't sure which one you needed.

Hope it helps! :)

8 0
2 years ago
What is the answer to this equation 13-3/2x=34
goldenfox [79]
If you would like to solve the equation 13 - 3 / 2 * x = 34, you can do this using the following steps:

13 - 3 / 2 * x = 34
13 - 34 = 3 / 2 * x
- 21 = 3 / 2 * x       /* 2/3
x = - 21 * 2 / 3
x = - 14

The correct result would be - 14.
6 0
2 years ago
Read 2 more answers
Kami bought 3 1/2 pounds of nectarines for $1.75 and 1 3/5 pounds of oranges for $0.60. Which fruit costs less per pound?
erastovalidia [21]
Nectarines would be the correct answer
6 0
3 years ago
the ordered pairs (0,-1),(1,0),(2,3),(3,8),(4,15) represent a function what is a rule that represents this function? Please help
yarga [219]

Answer:

The function rule is

f:  x\to \:  {x}^{2}  - 1

Step-by-step explanation:

The given ordered pairs are (0,-1), (1,0),(2,3),(3,8),(4,15)

We can observe the following pattern.

f(0) =  {0}^{2}  - 1 =  - 1

f(1) =  {1}^{2}  - 1 = 0

f(2) =  {2}^{2}  - 1 = 3

f(3) =  {3}^{2}  - 1 = 8

f(4) =  {4}^{2}  - 1 = 15

When we generalize this pattern, we obtain:

f(x) =  {x}^{2}  - 1

This is the function equation.

The function rule is

f:  x\to \:  {x}^{2}  - 1

8 0
3 years ago
6points and brainliest answer No.4
Anton [14]
It is 6 because 6x6x6=216
3 0
3 years ago
Read 2 more answers
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