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Eddi Din [679]
3 years ago
10

Jennifer has a taco stand.she found that her daily costs can be modeled by C(x)=x^2-40x+610. if she wants to keep her daily cost

at 300 dollars, how many units of tacos does she need to sell
Mathematics
1 answer:
Svetllana [295]3 years ago
8 0
Plug in 300 for C(x), to get:
300=x^{2} -40x=610
Then subtract to get: 0=0= x^{2} -40x+310
Then use the quadratic formula and plug everything in. Use a calculator to simplify.

You'll get two answers: 29.486 and -0.513.
Since you can't sell <em>"negative" </em>tacos, use the positive solution
Around 29-30 tacos.
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Find the side length of each of the following squares having area <br><br><br>16cm2
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Answer:

The side length of the each areas are (a) 4 cm  (b) 12 cm (c) 6 cm (d) 7 cm (e) 8 cm (f) 2 cm .

Step-by-step explanation:

Given:

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(a) 16 cm²  (b) 144 cm²  (c) 36 cm² (d) 49 cm² (e) 64 cm² (f) 4 cm².

Now, finding the side length of each squares.

So, putting the formula of area of square for getting the side length(a):

(a) Area = a²

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Using square root both the sides we get:

4=a

Side length = 4 cm.

(b)  Area = a²

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Using square root both the sides we get:

12=a

Side length = 12 cm.

(c) Area = a²

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Using square root both the sides we get:

6=a

Side length = 6 cm.

(d) Area = a²

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Using square root both the sides we get:

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(e) Area = a²

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Using square root both the sides we get:

8=a

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(f) Area = a²

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Using square root both the sides we get:

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Therefore, the side length of the each areas are (a) 4 cm  (b) 12 cm (c) 6 cm (d) 7 cm (e) 8 cm (f) 2 cm.

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