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Assoli18 [71]
3 years ago
9

If you had 1080 and the ratio is 3:4:5 how much would each person have

Mathematics
1 answer:
jolli1 [7]3 years ago
7 0
270:360:450 is the ratio 
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Quick computing company produces calculators they have found that the cost c(x),of making calculators is a quadratic function in
kirill115 [55]
A quadratic function is given by y = ax^2 + bx + c
c(2) = a(2)^2 + 2b + c = 45
4a + 2b + c = 45 . . . (1)
c(4) = a(4)^2 + 4b + c = 143
16a + 4b + c = 143 . . . (2)
c(10) = a(10)^2 + 10b + c = 869
100a + 10b + c = 869 . . . (3)

Solving (1), (2) and (3) gives a = 9, b = -5, c = 19

Therefore, c(x) = 9x^2 - 5x + 19
c(7) = 9(7)^2 - 5(7) + 19 = 9(49) - 35 + 19 = 441 - 16 = 425

Therefore, it costs $425 to produce 7 calculators.
4 0
3 years ago
The height h in feet of a ball after t seconds is given h=176t-16t^2. how long did it take for the ball to hit the ground?
Molodets [167]
Here's our equation.

h=176-16t^2

Let's reorder this so t² comes before t.

h=-16t^2+176t

We want to find out when the ball hits the ground. Essentially, <em>what is t when h=0?</em>
Let's plug in 0 for h and solve.

0=-16t^2+176t

From here we can use a number of methods to solve.
Methods such as splitting the middle, quadratic formula, etc. are not necessary for this equation, however. The best method here is just plain factoring.

-16t² and 176t are both divisible by 16t.

0=16t(-t+11)

Now we want t to equal zero. If either of those factors were zero, then the whole thing would be zero when we multiply by it. The first option is obvious. If t were 0, 16t would be 0. That's when the ball is first kicked off the ground. The other, 11-t, works out to be t = 11.
6 0
3 years ago
There are 3/4 a pizza left over from the night before, how many 1/8th portions are there
Nesterboy [21]

Answer:

6

Step-by-step explanation:

7 0
3 years ago
Please help i’m stuck!!<br> FIND GE AND FJ<br> HE = 6<br> FE= 8
dexar [7]

Answer:

GE=10

FJ=5

Step-by-step explanation:

We know that in a traingle

a^{2}+b^{2}  =c^{2}

a=HE=6

b=FE=8

Once we enter it into the equation, we find that we get

36+64=100

The square root of 100=10

GE=HF so HE=10.

Half of HE(10) is FJ(5)

Hope this help :)

6 0
4 years ago
Identify each expression as linear or not linear.
Allushta [10]

5x + 3 is a linear equation in one variable

8 0
3 years ago
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