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dmitriy555 [2]
3 years ago
10

At the auto parts store, Kerna has three things in her basket: wiper blades for $7.49, air fresheners for $3.29, and an oil filt

er wrench for $6.98. She has $18.00. Kerna wants to know if she will have enough money. Should she estimate the amount or find the exact amount? Explain.
Mathematics
1 answer:
lapo4ka [179]3 years ago
6 0

Answer:

Find the exact amount

Step-by-step explanation:

If she estimates the amount, it's not accurate enough because it may run a little over $18 when she actually has enough.

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Please help me I need it for my homework thanks
natima [27]

Answer: 5/4

Step-by-step explanation:

Multiple each term by 5/4 and simplify

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At Westside Middle School, 10 percent, or 140 students, participate in soccer. How many students are in the school?
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Which of the following is another name for a proof by contradiction?
andrew-mc [135]

Answer:

C. Indirect Proof

Step-by-step explanation:

There are two methods of indirect proof: proof of the contrapositive and proof by contradiction.

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3 years ago
Which equation is the inverse of y = 16x2 + 1?
Llana [10]

Answer:

y=\frac{\sqrt{x-1} }{4}

Step-by-step explanation:

The given equation is

y=16x^2+1

For this function to have an inverse, we must restrict the domain, say x\ge0

We interchange x and y to get,

x=16y^2+1


We now make y the subject to get;


x-1=16y^2


x-1=16y^2

We divide through by 16 to get;


\frac{x-1}{16}=y^2


We now take the square root of both sides to get;

\pm \sqrt{\frac{x-1}{16}}=y


y=\pm \frac{\sqrt{x-1} }{4}


Since  x\ge 0, the inverse function is


y=\frac{\sqrt{x-1} }{4}


6 0
4 years ago
What’s the answer to the word problem the difference of three times a number and 1
harina [27]

Answer:

There is no answer. I'm sorry but more information is needed in order to find the answer.

Step-by-step explanation:

However, the problem can be written.

It will look like:

3n - 1.

Since the number can be anything, this is not an answerable question because it must equal a number on the right side of the equation.

7 0
3 years ago
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