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Vlada [557]
3 years ago
11

Can someone please help me with the ones that are circled?

Mathematics
1 answer:
svlad2 [7]3 years ago
7 0

3.) f(x)=-2(x+1)^2+3

Domain: (- infinity, infinity)

Range:(-infinity,3]

Vertex: (-1,3)

Axis of symmetry: x=-1

Opens downward

4.) f(x)=9(x-2)^2-3

D:(-infinity, infinity)

R: [-3,infinity)

Vertex: (2,-3)

Axis: x=2

Opens upward

6.)

D:(-infinity, infinity)

R:(-infinity,0]

Vertex: (5,0)

Axis: x=5

Opens downward

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The cost in dollars y of producing x computer desks is given by y=80x+6000
Gnoma [55]

Answer:

(100,14000), (200, 22000), (300, 30000)

Step-by-step explanation:

y = 80x + 6000 ........ (1) is the equation which gives the cost (y) in dollars for making x number of computer desks.

Let, f(x) = 80x + 6000

So, f(100) = 80 × 100 + 6000 = 14000 {From equation (1)}

So, to produce 100 desks it costs $14000.

Again, f(200) = 80 × 200 + 6000 = 22000 {From equation (1)}

So, to produce 200 desks it costs $22000.

Again, f(300) = 80 × 300 + 6000 = 30000 {From equation (1)}

So, to produce 300 desks it costs $30000.

Then table will be (100,14000), (200, 22000), (300, 30000) (Answer)

5 0
3 years ago
Which proportions show that the triangles are not similar?
jasenka [17]

Answer:

AC and DF

Step-by-step explanation:

We can see that the triangles have a scale factor of 3.

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2 * 3 = 6 (BC and EF)

However...

2 * 3 = 6 not 7 (AC and DF)

3 0
3 years ago
Which of the above numbers is the value of expression equal to?
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Answer:

D.

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<span>The answer would be yes, the locus of points idea allows you to define a circle without giving a numerical value for the radius.

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