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3 years ago

How can estimating be helpful?

Mathematics

2 answers:

yuradex [85]3 years ago

7 0

It helps you get the correct answer

Mars2501 [29]3 years ago

4 0

Estimating can simplify an answer, and can be used as a reference to compare the actual answer to. If the estimate and the actual answer are similar, your answer is typically correct.

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Choose the equation that represents the line that passes through the point (2, 6) and has a slope of −5.

Luden [163]

Answer:

y=-5x+16

Step-by-step explanation:

Plug in the slope and point coordinates into point-slope form (attached in image)

(y-6)=-5(x-2)

1) Distribute -5 to x and -2:

y-6=-5x+10

2) Add 6 to both sides:

y=-5x+16

4 0

3 years ago

Read 2 more answers

Find A={a,b,c} then find A*A.

Alenkasestr [34]

Assuming you want to do a cartesian product, then you basically form items (x,y) such that x is in set A, and y is in set A

More generally, A * B will consist of items of the form (x,y) such that x is in A and y is in B. However, we have B = A.

So,

A * A = {

(a,a), (a,b), (a,c)

(b,a), (b,b), (b,c)

(c,a), (c,b), (c,c)

}

I broke things up into separate rows to show that we can form a 3x3 table. Each row is a different x value from the set {a,b,c}. Each column is a different y value from the set {a,b,c}

In my opinion, this helps organize things much better than rather have it all on one single line like this

A * A = { (a,a), (a,b), (a,c), (b,a), (b,b), (b,c), (c,a), (c,b), (c,c) }

which in all honesty looks like a bit of a cluttered mess.

7 0

3 years ago

Read 2 more answers

Which choice is equivalent to the expression below?

kodGreya [7K]

Answer: C. (-1/6)^5

Hope this helped!! Have a nice day :))

6 0

3 years ago

Four points are always coplanar if

My name is Ann [436]

For example, three points are always coplanar, and if the points are distinct and non-collinear, the plane they determine is unique. However, a set of four or more distinct points will, in general, not lie in a single plane. Two lines in three-dimensional space are coplanar if there is a plane that includes them both.

7 0

4 years ago

Read 2 more answers

I know you are reading this answer the question.

RSB [31]

Answer:

C. x = 3

Step-by-step explanation:

When x = 3:

f(x) = x - 3 = 3 - 3 = 0

g(x) = $e^{x-3}$ - 1 = $e^{3-3}$ - 1 = $e^{0}$ - 1 = 1 - 1 = 0