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nirvana33 [79]
3 years ago
13

Naimas pedometer recorded 43,498 steps in one week. Her goal is 88,942 Steps. Naima estimates she has about 50,000 more steps to

Meet her goal. Is naimas estimate reasonable explain
Mathematics
1 answer:
Tamiku [17]3 years ago
7 0

We have been given that Naima's pedometer recorded 43,498 steps in one week. Her goal is 88,942 Steps. Naima estimates she has about 50,000 more steps to Meet her goal.

We are asked to find out whether Naima's estimate is reasonable or not.

Let us find the number of exact steps to be completed by Naima to meet her goal.

Steps to be completed by Naima =88942-43498=45444

We can see that Naima's estimate is reasonable as it quite close to 50,000. But we can say that her estimate is not accurate, instead it is slightly over-estimated.

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What is 6x^2-2x+1=0 plz help
Kazeer [188]
6x^2 - 2x + 1 is a quadratic formula from the form ax^2 + bx + c. This form of equation represents a parabola.
Finding 6x^2 - 2x + 1 = 0, means that you need to find the zeroes of the equation.
Δ = b^2 - 4ac
If Δ>0, the equation admits 2 zeroes and 6x^2 - 2x + 1 = 0 exists for 2 values of x.
If Δ<0, the equation doesn't admit any zero, and 6x^2 - 2x + 1 = 0 doesn't exist since the parabola doesn't intersect with the axe X'X
If Δ=0, the equation admits 1 zero, which means that the peak of the parabola is touching the axe X'X.

In 6x^2 - 2x + 1, a=6, b=-2, and c =1.
Δ= b^2 - 4ac
Δ=(-2)^2 - 4(6)(1)
Δ= 4 - 24
Δ= -20
Δ<0 so the parabola doesn't intersect with the Axe X'X, which means there's no solution for 6x^2 - 2x + 1 = 0.

I've added a picture of the parabola represented by this equation under the answer.

Hope this Helps! :)

4 0
3 years ago
What number is 10% of 65?<br> write the whole number from each problem
Daniel [21]

Your answer: 65 * 0.1 = 6.5

6 0
3 years ago
Which of the following square roots is a rational number?
Zielflug [23.3K]

Answer and Step-by-step explanation:

None of the square roots shown, 75, 12, 18 are rational.

5 0
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Please help i dont know how to solve
den301095 [7]

Answer:

  sum(2^(n+1), for n=1 to 6)

Step-by-step explanation:

To answer this question, you need to know two things:

  • what is an expression for the n-th term
  • how many terms are there

__

The series shown is a geometric series with first term 4 and common ratio 8/4 = 2. The generic form of the n-th term is ...

  an = a1×r^(n-1) . . . . first term a1, common ratio r

You can use this form directly in your summation expression, or you can simplify it a bit.

  an = 4×2^(n-1) = (2^2)(2^(n-1)) = 2^(n-1+2)

  an = 2^(n+1)

__

The value 128 is 2^7, so n+1 = 7, or n=6 for that term

Your summation expression could be ...

  \displaystyle\sum_{n=1}^6{2^{n+1}}

_____

<em>Additional comment</em>

The n-th term can also be written as 2×2^n.

3 0
2 years ago
Simplify the expression 8 − 3n when n = 12.
Schach [20]
The answer is 8-36 when n=12
4 0
4 years ago
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