3 years ago

Giving brainliest!!!!!!!!!!!

Mathematics

2 answers:

koban [17]3 years ago

6 0

Answer:

i believe its D

Step-by-step explanation:

i hope that's right if its not I'm sorry

Makovka662 [10]3 years ago

4 0

The answer to this problem is D

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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

Svetllana [295]

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.

8 0

3 years ago

Factor the expression.

grigory [225]

Hey!

First, let's write the problem,
$4r^2-64$
Factor out the common term, which is 4,
$=4\left(r^2-16\right)$
Then, let's factor this part: $r^2-16$
We are going to factor it using the difference of squares rule.
$=\left(r+4\right)\left(r-4\right)$
Our final factored answer would be,
$=4\left(r+4\right)\left(r-4\right)$

Thanks!
-TetraFish

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3 years ago

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How do you simplify this expression using positive exponents?<br>

icang [17]

Answer: 1/2^17

Step-by-step explanation:

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3 years ago

When Tom found the difference −17 − (−12), he got −29. Complete the statement that explains what Tom might have done wrong.

ad-work [718]

Answer: