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lyudmila [28]
3 years ago
13

PLZ HELP MEEE!!!

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
6 0
It’s D 100% I hope this helped ;)
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The sum of a number y and 9 is a least -1
Nataly_w [17]

Answer:

Y+9>= -1

Step-by-step explanation:

The sum of a number y and 9 means that we wanna add Y and 9, but since y is a variable and 9 is just a number, we can't add them.

Now we have Y+9

Now, we plug in our inequality sign which is at least.

at least is >=

Now we have Y+9>=

And all you have to do is place the negative one after the inequality sign, and you get Y+9>= -1

Hope this helps! :)

8 0
4 years ago
For the equation y = 3x2 - 4x + 11, choose the correct application of the quadratic formula.
stiv31 [10]
Starting off, if you understand the quadratic formula (if you don’t look up the formula) you’re looking for A,B, and C. A is 3, B is -4, and C is 11. You would then plug in these numbers following the quadratic formula, which results in;

The first option is the correct one. :)
4 0
3 years ago
What is the vertex of the function x2 - 6x + 8 = 0?
RUDIKE [14]

<u>Answer: </u>

The vertex of the function \bold{x^{2} -6 x + 8 = 0}is (h,k) = (3 , -1)

<u>Solution: </u>

The vertex form of quadratic equation is generally given as,

f(x) = a(x - h)^{2} + k

Where h,k is the vertex of the parabola.

From question, given that x^{2}-6 x+8=0 .

we have to find the vertex of the function.

Let us first convert the given quadratic equation to vertex form (eqn 1)

x^{2}-6 x+8=0

x^{2}-6 x=-8

By adding “9” on both sides of equation, we get

x^{2}-6 x+9=-8+9

x^{2}-6 x+9=1

By using the identity (a-b)^{2}=a^{2}-2 a b+b^{2} ,the right hand side of above equation becomes,

(x-3)^{2}=1

(x-3)^{2}-1=0

Now,the equation (x-3)^{2}-1=0 is of the vertex form.

By comparing (x-3)^{2}-1=0 with a(x-h)^{2}+k

we get the values of (h,k)

a = 1; h = 3; k = -1

hence the vertex of the function x^{2}-6 x+8=0 is (h,k) = (3 , -1)

5 0
3 years ago
The probability of a particular event is 3/8 . What is the probability that the event will not happen ? Explain
viva [34]
5/8 because 8/8 - 3/8 Is 5/8
8 0
4 years ago
What is the imaginary number
Sphinxa [80]

Answer:

i

Step-by-step explanation:

you have nothing for us to solve so if you need the definition of it just let me know, but it is represented by the letter "i"

7 0
4 years ago
Read 2 more answers
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