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drek231 [11]
3 years ago
5

What are the vertex, axis of symmetry, domain and range of the function:

Mathematics
1 answer:
DiKsa [7]3 years ago
3 0
Y=(-x*x)-4x+3
y=-(x^2+4x-3)
4+y=-(x^2+4x+4)+3
y+4=-(x-2)^2.) +3
-4. -4
y=-((x-2)^2)-1

Answers:
Vertex: (2,-1)
AOS:x = 2
Domain: All Real Numbers
Range:[-1,Infinity)
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In a proper fraction, is the numerator less than or greater than the denominator?
poizon [28]

Answer:

In a proper fraction, the numerator is less than the denominator.

Step-by-step explanation:

For example, 3/4. It is a proper fraction because the numerator is not greater than the denominator.

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3 years ago
Strands Copper wire from a manufacturer are analyzed forstrenghth and conductivity. The Results from 100 strands are asfollows:S
Thepotemich [5.8K]

Answer and explanation:

Given : Strands Copper wire from a manufacturer are analyzed forstrenghth and conductivity. The Results from 100 strands are as follows :

                                                 Strength Strength

                                                    High             Low

High conductivity                         74                8

Low conductivity                         15                3

To find :

a) If a stand is randomly selected, the probability that is conductivity is high and its strength is high

The favorable outcome is 74

The probability is given by,

P=\frac{74}{100}=0.74

b) If a stand is randomly selected, the probability that its conductivity is low or  strength is low

Conductivity is low A= 15+3=18

Strength is low B= 8+3=11

Conductivity is low and  strength is low A\cap B=3

Probability is given by,

P(A\cup B)=P(A)+P(B)-P(A\cap B)

P(A\cup B)=\frac{18}{100}+\frac{11}{100}-\frac{3}{100}

P(A\cup B)=0.18+0.11-0.03

P(A\cup B)=0.26

c) Consider the event that a strand low conductivity and the event that the strand has a low strength. Are these tow events mutually exclusive?

Since the events the stand has low conductivity and the stand has low strength  are not mutually exclusive, since there exists some cases in which both the  events coincide. i.e. Intersection of both the events exists with probability 0.03.

8 0
3 years ago
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evablogger [386]

Answer:

-11/12 − 1/6

-3/5 + 3/20

-2/3 + 1/12

Step-by-step explanation:

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3 years ago
Which of the following equations represent linear functions?
jonny [76]

Answer: v^2 -4v-21

Step-by-step explanation:

4 0
2 years ago
If the price of upholstery fabric is $12.49 per yard, how much will 16 yards cost?
Oliga [24]
16 yards will cost $199.84 assuming there is no tax. We know this because

12.49 X 16 = 199.84
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3 years ago
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