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uysha [10]
3 years ago
7

Fill in the blank The vertext of y= x^2-8x+18 is ( , ) PleASE HELP ASAP

Mathematics
1 answer:
AlexFokin [52]3 years ago
7 0

Answer:

Vertex is at (4, 2)

Step-by-step explanation:

to find the 'x' value of the vertex, use 'x = -b/2a'

in this problem, a = 1, b = -8, c = 18

x = -(-8)/2(1)

x = 8/2

x = 4

plug 2 in for 'x' in equation and solve for 'y':

y = 4² - 8(4) + 18

y = 16 - 32 + 18

y = -16 + 18

y = 2

Vertex is at (4, 2)

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Evaluate the expression.
kirza4 [7]

Answer:  13

Step-by-step explanation:

7 0
3 years ago
How many even numbers are between 11 and 30​
Debora [2.8K]

Answer:

9 even numbers are between 11 and 30.

Step-by-step explanation:

12, 14, 16, 18, 20, 22, 24, 26, 28

8 0
3 years ago
Please help like nobody has helped me on my other questions and i dont wanna fail this test
Elena-2011 [213]

Answer: d=70; f=45; e=65

Step-by-step explanation:

NUMBER 1 WAY

110+d=180

      d=70

135+f=180

       f=45

d+f+e=180

70+45+e=180

            e=65

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

NUMBER 2 WAY

concept to know: exterior angle theorem

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

System of equation

d+e=135

f+e=110

d+e+f=180

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

d=135-e

f=110-e

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

d+e+f=180

(135-e)+e+(110-e)=180

135-e+e+110-e=180

245-e=180

e=65

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

d=70

e=65

f=45

3 0
4 years ago
Can a triangle be formed with side lengths 15, 7, and 6? Explain.
Blizzard [7]

Answer:

<h3>No.</h3>

Step-by-step explanation:

The sides would be unbalanced. To get the sides of a triangle, you have to add up the first two sides. The two sides combined usually have to be less than or equal to 15 to be considered "balanced". 22 is greater than 15, so that would leave you with an unbalanced triangle, sometimes considered degenerate. A degenerate triangle is a flat triangle that almost looks like a line. The triangle's vertices all lie on the same line, which makes it look very flat. That's why degenerate triangles are rarely considered "balanced" in regards to unit measures. So, given this is an unbalanced triangle, the answer to your question would be no.

Hope this helps!

6 0
1 year ago
What is the first quartile and third quartile of this data set: 34, 34, 36, 39, 50, 41, 45, 47, 40?
o-na [289]

Answer:

whatever

Step-by-step explanation:

the first quartile is between 34 and 36 = 35

the third quartile is between 45 and 47 = 46

5 0
3 years ago
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