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Assoli18 [71]
2 years ago
15

Which of the following is not an undefined term? point, ray, line, plane​

Mathematics
2 answers:
wariber [46]2 years ago
7 0

Answer:

ray

Step-by-step explanation:

ray is a part of a line that has an endpoint in one side and extends indefinitely on the opposite side. hence, the answer is ray

hope this helps

Goshia [24]2 years ago
5 0

Answer:

Step-by-step explanation:

Ray

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In simplest form what is 2/7 + 2/5
Len [333]

24/35.................

3 0
2 years ago
Plz help me with this thank you
o-na [289]

Answers:

  • One possible equation to solve is tan(x) = 4/15
  • That solves to roughly 15 degrees

==============================================================

Explanation:

Refer to the diagram below.

The segment AB is the player's height of 6 ft.

The segment CD is the hoop's height, which is 10 ft.

There is a point E on CD such that rectangle BACE forms. This will help us form ED later.

Angle EBD is what we're after, which I'll call x.

Since the free throw line is 15 ft from the basket, this means segments EB and AC are 15 ft each.

In rectangle BACE, the side EC is opposite AB. So both of those sides are 6 ft each.

Since CD = 10 and EC = 6, this must mean ED = CD-EC = 10-6 = 4.

---------------------------------------

To summarize, we found that ED = 4 and EB = 15.

We'll focus our attention entirely on triangle EBD

We have two known legs of the triangle, specifically the opposite and adjacent sides.

So we'll use the tangent ratio.

tan(angle) = opposite/adjacent

tan(B) = ED/EB

tan(x) = 4/15 .... is the equation to solve

x = arctan(4/15) .... same as inverse tangent or \tan^{-1}

x = 14.931417 ..... make sure to be in degree mode

x = 15 ..... rounding to the nearest whole degree

So that unknown angle in the diagram is approximately 15 degrees

8 0
3 years ago
Express y = -2x² - 4x + 7 in the form of perfect square and find the maximum points.
Marat540 [252]

Answer:

<em>Maximum: (-1,9)</em>

Step-by-step explanation:

<u>Vertex form of the quadratic function</u>

If the graph of the quadratic function has a vertex at the point (h,k), then the function can be written as:

y=a(x-h)^2+k

Where a is the leading coefficient.

We are given the following function:

y =-2x^2-4x+7

To find the vertex, we need to complete squares. First, factor -2 on the first two terms:

y =-2(x^2+2x)+7

The expression in parentheses must be completed to represent the square of a binomial. Adding 1 and subtracting 1:

y =-2(x^2+2x+1- 1)+7

Taking out the -1:

y =-2(x^2+2x+1)+2+7

Factoring the trinomial and operating:

y =-2(x+1)^2+9

Comparing with the vertex form we have

Vertex (-1,9)

Leading coefficient: -2

Since the leading coefficient is negative, the function has a maximum value at its vertex, i.e.

Maximum: (-1,9)

3 0
2 years ago
A survey found that 15 out of 100 people have blue eyes. on the basis of this survey, how many people in a group of 5000 are lik
lesya692 [45]
750 because you take 5000 divided by 100 equals 50, and 15 times 50 equals 750
7 0
3 years ago
Order the numbers from least to greatest. 7.6, 7 8/21, 7 4/5, 7 2/3, 7.71
Ierofanga [76]

Answer:

7 8/21, 7.6, 7 2/3, 7.71, 7 4/5

Step-by-step explanation:

none

4 0
3 years ago
Read 2 more answers
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