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Lelechka [254]
3 years ago
5

PLEASE HELP, Don’t know how to solve.

Mathematics
1 answer:
Allisa [31]3 years ago
5 0
Let's just put it in vertex form so we know what it is

y=x^2+2x+1

y-1=x^2+2x

y-1+1=x^2+2x+1

y=(x+1)^2

So the vertex is (-1, 0), and since the coefficient is 1 is positive this vertex is the absolute minimum for the parabola.

So plot points for x={-3,-2,0,1} to get

(-3, 4),(-2, 1),(-1, 0),(0, 1),(1, 4)
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Im stuck on this question i need help
Korolek [52]
I think it’s one half 1/2
4 0
3 years ago
When solved for x, what is the sum when the roots of the quadratic equation are added?
Anna35 [415]

Answer:

A

Step-by-step explanation:

x² + 10x + 24 = 0

Here, a = 1, b = 10, c = 24.  Factoring using the AC method:

ac = 1×24 = 24

Factors of 24 that add up to 10 are +4 and +6.

Therefore:

(x + 4) (x + 6) = 0

x + 4 = 0, x + 6 = 0

x = -4, x = -6

The roots are -4 and -6.  Added together:

-4 + -6 = -10

Answer A.

6 0
3 years ago
Read 2 more answers
Solve 5x2 = −30x − 65
Crank
I hope this helps you




5x^2+30x+65=0




5 (x^2+6x+13)=0



x^2+6x+13=0



a=1 b=6 c=13



disctirminant=b^-4ac



disctirminant=6^2-4.1.13



disctirminant=36-52



disctirminant= -16


x1= -6+square root of -16/2.1



x1= -6+4i/2=2i-3



x2= -6- square root of -16/2.1



x2= -6-4i/2= -3-2i
6 0
3 years ago
Find the area of the circle if radius is 6 and there is only 3/4 of the circled
drek231 [11]

Answer:

84.8

Step-by-step explanation:

Begin by finding the total area of the circle. You have been given the radius.

A = πr²

A = π(6)²

A = 36π

A = 113

If there is only 3/4 of the circle, then multiply the entire area by 3/4 to find the final answer.

113 x 3/4 = 84.8

3 0
2 years ago
What set or sets of real numbers does -√16 belong to?
Sati [7]

Answer:

Step-by-step explanation:

Well the square root of 16 can be simplified to 4, which can be represented as a fraction: 4/1, so it's not irrational, but rather rational.

Whole numbers are similar to integers, and natural numbers, the only difference is integers includes all real numbers, which do not have a decimal value. So this includes negative numbers, zero, and positive numbers.

Whole numbers include all real numbers, which do not have a decimal value, and are greater than or equal to zero, or in other words, not negative.

Natural numbers include all real numbers, which do not have a decimal value, and are greater than zero, or in other words, positive numbers.

So this number is a integer, and rational number. (since the negative number in front of the radical)

4 0
2 years ago
Read 2 more answers
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