Andy completes the square for the equation x2 + 6x - 8 = 0. Which of the following equations reveals the vertex of the parabola? will fan and medal

Answers

Answer 1

Answer: If the equation $x^2+6x-8$ has undergo completing the square, the answer would be:
$x^2+6x-8$
$x^2+6x+9-8-9$
**In this example, since 6x is the middle term, what comes to my mind is the polynomial (x+3) because 2ab results into 6x. [from the special products lesson $(a+b)^2=a^2+2ab+b^2$ ]
$(x+3)^2 -17 = 0$
So if the equation is equal to y, then this equation's
$y+17=(x+3)^2$
The vertex would be on the point (-3, -17)

Answer 2

Answer:

Answer:

(h,k) in the cuadratic formula y= a(x-h)^2 + k

Step-by-step explanation:

If you complete square in a cuadratic formula the vertex of the parabola will be more visible. In the case of f(x)= $x^(2)+6x-8$ we complete square adding and substracting 9. So,

$x^(2)+6x+9-9-8 = (x+3)^(2)-17$

So we have the cuadratic form of a parabola $y= a(x-h)^(2) + k$ where a=1, h= -3 and k= -17.

So, the vertex is (h,k)=(-3,-17).

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There is 1 other part to this pls help asap

Answers

Answer:

Step-by-step explanation:

As show in the photo, x+87 is equivalent to 4x.

Carmela mixes 3/4 kilogram of walnuts, 1/2 kilogram of almonds, and 1/4 kilogram of pecans together. She divides the mixed nuts into 3/10 kilogram bags. How many bags of mixed nuts does she have.

Answers

The total number of bags of mixed nuts with Carmela are 5.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is Carmela who mixes 3/4 kilogram of walnuts, 1/2 kilogram of almonds, and 1/4 kilogram of pecans together. She divides the mixed nuts into 3/10 kilogram bags.

We can write the equation as -

(3/4 + 1/2 + 1/4) x 1000 = (3/10) x 1000 x n

1.5 x 1000 = 3 x 100 x n

1.5 x 10 = 3n

15 = 3n

n = 5

Therefore, the total number of bags of mixed nuts with Carmela are 5.

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Answer:

Step-by-step explanation:

Is −5 a solution to the equation 6 + 5 = 5 + 8 +2? PLS HELP

Answers

Answer:

it is false

Step-by-step explanation:

Answer:

False

Step-by-step explanation

6+5?=5+8+2

11≠15

False

With this equation it was asking you is 6+5 equal to 5+8+2

and the answer is no, false.

Dr. Jimand poses as a student in his study of Bosnian students who are adjusting to college life in the United States. Dr. Jimand lives in the dorm with the students and attends classes with them. What research method is he using?A. formal experimentation
B. survey method
C. clinical method
D. naturalistic observation

Answers

Answer:

D. naturalistic observation

Step-by-step explanation:

Naturalistic observation is a method of research that consists in observing subjects in their natural environment without any exterior interferences that could alter their behavior. By posing as a student, Dr. Jimand is inserting himself among the other students to observe their natural behavior. For instance, if they were told that there was a doctor observing them, the students' behavior could change and that wouldn't be a true naturalistic observation.

When calculating simple interest, what must you do if you want to invest for months or weeks instead of years? a. Simple interest only pays yearly, so you should find another investment. b. The simple interest calculation does not use those units, so you should just calculate as normal. c. The units have changed, so the interest formula switches to I·t=P·r. d. Interest rates are annual, so you must convert the units into years

Answers

The correct answer is D.

Explanation:
Interest rates are given as an annual percentage rate. If you are investing for months or weeks, you will need to convert your units. You would divide the number of months by 12, since that would be the portion of a year it represents. For example, 3 months is 3/12 months, or 3/12 of a year. Similarly, if you were investing for weeks, you would divide by 52; if you want to invest for 6 weeks, that is 6/52 weeks, or 6/52 of a year.

Answer:

Interest rates are annual, so you must convert the units into years.

Step-by-step explanation:

edge 2020

When a projector is placed 10 meters from a screen as shown, it produces an image 3 meters high. If the tallest image that the projector can produce without distortion is 4.5 meters high, what is the maximum distance the projector can be placed from the screen?

Answers

To get the maximum distance, you first use the given numbers as basis.

10 meters/3 meters =x/4.5 meters

Where x = the maximum distance the projector can be placed that can produce an image 4.5 meters high

3x = 10 (4.5)

3x = 45

X= 45/3

X= 15 meters

So, the maximum distance that the projector can be placed from the screen which produces an image 4.5 meters high is 15 meters.

Answer:

So, the maximum distance that the projector can be placed from the screen which produces an image 4.5 meters high is 15 meters.

Step-by-step explanation:

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