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Anvisha [2.4K]
3 years ago
8

The axis of symmetry for a function in the form f(x) = x^2 + 4x − 5 is x = −2. What are the coordinates of the vertex of the gra

ph?
(−9, −2)

(−17, −2)

(−2, −17)

(−2, −9)
Mathematics
2 answers:
drek231 [11]3 years ago
8 0
Hello,

If x=-2 f(-2)=(-2)²+4*(-2)-5= 4-8-5=-9

vertex is  (-2,-9)

taurus [48]3 years ago
6 0

Answer:

(-2,-9) or d

Step-by-step explanation:

You can check on desmos plus I got it right on the test

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How many different 4 color code stripes can be made on a sports car if each code consists of the colors green, red, blue, and wh
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From the list of colors: green, red, blue, and white, there are four colors. The concept that should be used in order to determine the number of 4-color code stripes that can be drawn in the sports car is the concept of BASIC PRINCIPLE OF COUNTING.

The equations that would best help us in answering the question is,
                         n = 4! (that is, four factorial)
For the first pick, there are four choices. When one is already used then, there are only 3 choices for the second color, and so on until the last color. 
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Thus, there are 24 types of 4-color codes. 
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3 years ago
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I hope this helps you

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3 years ago
How many positive four-digit integers are multiples of 5 and less than 4,000
Volgvan

Answer:

  Number of positive four-digit integers which are multiples of 5 and less than 4,000 = 600

Explanation:

 Lowest four digit positive integer = 1000

 Highest four digit positive integer less than 4000 = 3999

 We know that multiples of 5 end with 0 or 5 in their last digit.

 So, lowest four digit positive integer which is a multiple of 5 = 1000

 Highest four digit positive integer less than 4000 which is a multiple of 5  = 3995.

 So, the numbers goes like,

       1000, 1005, 1010 .....................................................3990, 3995

 These numbers are in arithmetic progression, so we have first term = 1000 and common difference = 5 and nth term(An) = 3995, we need to find n.

          An = a + (n-1)d  

           3995 = 1000 + (n-1)x 5

           (n-1) x 5 = 2995

           (n-1) = 599

            n = 600

 So, number of positive four-digit integers which are multiples of 5 and less than 4,000 = 600

6 0
3 years ago
On a multiplication facts test, Samantha had to know the facts from 1-12. She earned 3 points for every fact she solved correctl
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Answer:

y=3x+10

Step-by-step explanation:

I dont think it is the right form but that Is an equation for it

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A study on the population of wolves is being done in a county to determine how the number of wolves has changed over time. The p
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Answer:

<h2>The year is 2010.</h2>

Step-by-step explanation:

The population of wolves is given by P(t) = 80(0.98)t.

The study has began in the year of 2000 and will end in 2020.

The difference between 2000 and 2009 is 9 years and the difference between 2009 and 2020 is 11 years.

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The domain is 0 \leq t \leq 11.

The population will be 80, that is P(t) = 80.

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In (2009 + 1) = 2010, the population of wolves will be 80.

3 0
3 years ago
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