Mathematics High School

Factoring, Algebra
There are two questions :v

Factoring, AlgebraThere Are Two Questions :v
Factoring, AlgebraThere Are Two Questions :v

Answers

Answer 1

Answer:

Step-by-step explanation:

One

v^2 - 16

This formation is called the difference of squares. That's because there are 2 squares v^2 and 16. The key to this question is the minus sign.

The square root of v^2 = v

The square root of 16 = 4

You get (v + 4)(v - 4)

Let's see what happens when you expand it.

v*v = v^2v*(-4) = - 4vv*(4) = 4v4*-4 = - 16

Look what happens when you add these 4 terms together.

v^2 - 4v + 4v - 16v^2 - 16

is what is left. The two middle terms cancel out.

Two

This one is a perfect square

w^2 + 16w + 64

(w + 8)(w + 8)

Notice both factors are the same. You might wonder how I new that.

w^2 is a perfect square so take the square root.  ....   v      

64 is a perfect square so take the square root    .....    8

Now you have to work backwards to see if it is right.

w*w = w^2w*8 = 8w8*w = 8w8^2 = 64

Adding you get w^2 + 16w + 64 which is what you started with.

Answer 2

Step-by-step explanation:

pfuctdgvlghtof ign? ?khgdohetsogsruxjg!

Related Questions

How many different possible meal outcomes are there if you're having one item each from the main course, sides, and drink menu?

Answers

Answer: 64
Explanation: 4^3

i dont know if im right or not but i think its G can anyone help?

Answers

You’re right it’s G because when you are going to your righ it’s goin by 7 n same on the left side

What is the x-coordinate of the point that divides the
directed line segment from J to K into a ratio of 2:5?
x = ( m n )(x2 – xu) + x4
O 4
O-2
O 2
O 4

Answers

it’s either -2 or 2 i use a calculator

A taxi cab company wants to know if it’s customers are satisfied with the service. Each driver surveys every 10th customer during the day. Is this sample biased?

Answers

Answer:

No

Step-by-step explanation:

please help on this i cant understand it

Answers

Answer:

to get the probability you add the number of figure all together

divide the number of spheres with the total

ie

2 ÷ 10

you get 1÷ 5

you get the answer as 0.2

In parallelogram FGHJ

Answers

120° + x = 180°
x = 60°

Use the equation w=9b to find the value of w when b=6.

Answers

9 x 6 = 54 so w= 54 .............

Please help me with my algebra homework (Attachment)

Answers

Answer:

D.

Step-by-step explanation:

To see if a line is parallel to y = -(2/3)x + 8 you need to check if the coefficients at y and x are of the same ratio. This immediately removes answers A and C, because of the wrong sign at x compared to y.

What's left is to see which of the answers B and D passes through (4, -5) by inputting x = 4 and y = -5

B.

left = -5 - 5 = -10

right = -(2/3)(4 + 4) = -16/3

So it's D. Let's verify:

D.

left = -5 + 5 = 0

right = -(2/3)(4 - 4) = 0

Checks out.

Answer:

Option D

Step-by-step explanation:

→ Find the gradient of the parallel line

[tex]y=-\frac{2}{3} x+c[/tex]

→ Substitute in the coordinates as x and y values to find c

[tex]5=-\frac{2}{3} *-4+c[/tex]

→ Simplify

[tex]5=\frac{8}{3} +c[/tex]

→ Minus  [tex]\frac{8}{3}[/tex]  from both sides to find c

[tex]c = \frac{7}{3}[/tex]

→ Expand out all options and then see which one contains all the numbers above

Option D

The vertex of a parabola is (1,3) and another point on the parabola is (-1,-1). Which point is also on the parabola?

A. (-3,3)
B. (0,3)
C. (3,-1)
D. (1,0)

Answers

Answer:

Step-by-step explanation:Vertex form of a quadratic equation is y=a(x-h)2+k, where (h,k) is the vertex of the parabola.

The vertex of a parabola is the point at the top or bottom of the parabola.

'h' is -6, the first coordinate in the vertex.

'k' is -4, the second coordinate in the vertex.

'x' is -2, the first coordinate in the other point.

what is 76,808 rounded to the nearest 100?

Answers

Answer:

76,800

Step-by-step explanation:

This is because 808 is closer to 800

Is the equation y=4x proportional

Answers

Yes because it’s divisible by 2 and you can get an equal answer

PLEASE HELP ASAP!!!
:(

Answers

Answer: D

Step-by-step explanation:

please help me on this i really need your help

Answers

Answer: The unit rate is 16 miles per gallon

Step-by-step explanation:

464 miles for 29 gallons

? miles for 1 gallon

29x = 464

Divide both sides by 29

x = 16

PLS HELP ASAP! GIVING BRAINLIST

Answers

Answer:

8.48528137424

Step-by-step explanation:

Answer:

6√2

Step-by-step explanation:

√72=8.48

6√2=8.48

Help on this question

Answers

Answer:

126 minutes, or 2.1 hours.

Step-by-step explanation:

Change 6 hours to minutes. (6x60=360)

Find 1% of 360 (360x0.01=3.6)

Multiply 3.6 to 20 (cleaning) and then multiply 3.6 to 15 (video games)

Then, add them, which you should get the answer of 126.

AYUDAAAA AYUDAAAA NO ME ACUERDOOOOO AYUDAAA
2+5(520)÷8

Answers

anade 2 mas 5 multiplicow por 520 dividido por 8

Answer:

327

Step-by-step explanation:

2+5x520 divide by 8

2+325=327

Pls give brianly if its correct?

HELP! DUE TODAY! WILL GIVE BRAINLEST!!

What is simple interest? -provide formula and an example

Answers

Answer:

The formula for simple interest is A= P(1+rt).

Step-by-step explanation:

I legit looked it up. I didn't even know this existed before this so I am unable to give an example. Sorry... Q^Q

What type of function has the possibility of two x-intercepts?
I. Linear
II. Quadratic
III. Absolute Value

Answers

Answer:-
I think it’s Quadratic, since as in a quadratic equation:
ax^2 + bx + c = 0

A quadratic function has the possibility of two x-intercepts.

What is a quadratic function?

A quadratic function is one of the form f(x) = ax² + bx + c, where a, b, and c are numbers with a not equal to zero.

Given that a function having two x-intercepts

The graph of a quadratic function will always have one y-intercept and can have as many as two x-intercept.

Hence, a quadratic function has the possibility of two x-intercepts.

For more references on a quadratic function, click;

https://brainly.com/question/27958964

#SPJ6

Write a verbal expression for 2(n + 9)

Answers

Answer:

Two times the sum of a number and nine.

Step-by-step explanation:

Answer:

two times the sum of n plus nine.

Step-by-step explanation:

A Research company found that 11% of The people That they called agreed to Participate in a survey. If the company called 196 people, about how many would have be expected to participate in the survey?

Answers

Answer:

22

Step-by-step explanation:

11% of 196 = 21.56

Divide by 10 and divide by 100. Add them together

You must round this up because you cant really have .56 of a person.

Find the value of a and b.
2x + 5y = 9
3x – 2y = 4
x= ?
y= ?

Answers

2x + 5y = 9
3x - 2y = 4

1) Make the x equal the same (find common factor) which is 6
2) Time the whole equation by the factor for example 2x3= 6, times the top equation by 3. The bottom 3x2=6, times the bottom equation by 2:

6x+15y=27
6x-4y=8
(Cancel the x)

Left with: 19y =19 (15- -4y =19y) (27-8=19)
Therefore y = 1

Now substitute y=1 into the equation to find x

6x + 15(1)= 27
6x + 15 = 27
6x = 12
X = 2

Answers:
X=2, Y=1

Hope this helps!
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Answer ASAP. 1+ 4.25n + 3/2 p-3+ (-2p) + 5/4n

Answers

Answer: this is a lot alright , 8n +4p

Step-by-step explanation:

Y = 3x + 10 which order pair is x and y

Answers

Answer: (0,−10),(1,−7),(2,−4)

Write a function rule for the table- please help

Answers

Answer: The 3rd option

Step-by-step explanation: f(x) aka 5 is = to x aka 2+3 (2+3=5)

Plz make brainliest

correct answer is the 3rd option !

PLSS HELP ASAP!! Ava writes each letter of the alphabet on separate note
cards and puts the cards in a hat. How many times
would you expect Ava to pick a letter from her name if she picks a card 50 times, returning the card to the hat
each time?
A about 2 times
B about 4 times
C about 13 times
D about 26 times

Answers

Answer:

I think about 2 to 4 times. Sorry if it isn't helpful... O^O

Which is the simplified form of the expression 6y – 4 + 3y?

Answers

Hello!    

3y^1-1

3y^0

3*1

3

y=3

please help! I need this fast.

Answers

Answer:

I think the answer is only 6 items that was used in making the container with the help of the net.

but for the calculation, you have to add the the given dimensions to get the answer

I Need help now!!!!

Answers

Answer:

The answer is B.x2/4y3n hope it helps

The ratio of boys to girls in a class is 3:5. There are 40 students in the class. How many more girls than boys are there? ​

Answers

Answer:

I think it is 8 (not %100 sure)

Step-by-step explanation:

what I did was I divided 40 by 5 which gave me 8

I hope this helps;) sorry if it dosen't

Answer:

The Answer Is 10

Step-by-step explanation:

The Total Strength = 40 Students

The Ratio Of Boys To Girls = 3:5

So, 3 + 5 = 8

Then, Divide 8/40 So That U Get The Number Then Multiply It With The Ratio.

•8/40 = 5

•5 × 3 = Boys Strength Which Is = 15

•5 × 5 = Girls Strength Which Is = 25

So, There Are 10 Girls More Than Boys.

Hope It Helps U.

Please Mark As Brainliest.

what is the opposite of -2​

Answers

Answer:

2

Step-by-step explanation:

opposite of -2 is 2 because it is like 2 is opposite of -2

Answer:

2.

Step-by-step explanation:

The opposite of a number is the number which when added to it gives a result of zero.

-2 + 2 = 0 so the required  number is  2.

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