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ANTONII [103]
2 years ago
5

2 What is the vertex of the following parabola?

Mathematics
1 answer:
Sliva [168]2 years ago
4 0

Answer:

B.(-12,9) thats the answer enjoy :>

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Please answer the question in the picture
rosijanka [135]

answer:

(5x-1)(x-3)

explanation:

→ 5x² - 16x +3

→ 5x² -15x - x +3

→ 5x(x-3)-1(x-3)

→ (5x-1)(x-3)

3 0
2 years ago
Determine which functions have two real number zeros by calculating the discriminant, b2 – 4ac. Check all that apply.
pantera1 [17]

Step-by-step explanation:

We need to write the function that have two real number zeros by calculating the discriminant i.e. b^2-4ac.

We know that,

If D>0  the roots are real and unequal

If D= 0 roots are real and equal

If D< 0 roots are imaginary or not real and unequal

Function (1)

f(x)=x^2 + 6x + 8\\\\D=6^2-4\times 1\times 8\\\\D=4

D>0  the roots are real and unequal

Function (2)

g(x)=x^2 + 4x + 8\\\\D=4^2-4\times 1\times 8\\\\D=-16

D<0  the roots are real and unequal

Function (3)

h(x)=x^2 -12x+32\\\\D=(-12)^2-4\times 1\times 32\\\\D=16

D>0  the roots are real and unequal

Function (4)

k(x)=x^2 +4x-1\\\\D=(4)^2-4\times 1\times (-1)\\\\D=20

D>0  the roots are real and unequal

Function (5)

p(x)=5x^2 +5x+4\\\\D=(5)^2-4\times 5\times 4\\\\D=-55

D<0  the roots are real and unequal

Function (6)

t(x)=x^2 -2x-15\\\\D=(-2)^2-4\times 1\times (-15)\\\\D=64

D>0  the roots are real and unequal

(1),(3),(4) and (6) have two real number zeroes.

5 0
3 years ago
Someone help please <br> Set up a proportion and solve for AD
kifflom [539]

Answer:

AD = 10

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the total surface are when the radius is 2 and the height is 9.5
Olenka [21]

Answer:

Total surface area = 73.56506

Step-by-step explanation:

I do not know what shape you are trying to find the total surface area for, but I hope this is correct & helpful.

8 0
2 years ago
Can someone pls help me I’m so confused!!! :(
Naddika [18.5K]

Answer:

u = 150

Step-by-step explanation:

Number of vertices:

10

Find the sum of the interior angles:

180(n - 2)

180(10 - 2)

180(8)

1440

To find u:

u = 1440 - (130 + 145 + 160 + 150 + 130 + 150 + 125 + 155 + 145)

u = 1440 - (1290)

u = 150

4 0
2 years ago
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