If the zeros of a quadratic function are 3 and 8, what are the factors of the function?

A.
(x + 8) and (x − 3)
B.
(x − 8) and (x + 3)
C.
(x + 8) and (x + 3)
D.
(x − 8) and (x − 3)

Answers

Answer 1
the answer is D. this is because in order for the brackets to equal zero, you have to have a negative number inside.
Answer 2

Answer:

D

Step-by-step explanation:

one way to write a quadratic equation is using the y = (x-s) (x-r) where r and s are positive zeros. another way to solve this and think about it would be to plug in your points and equate both sides. example:(3,0) (8,0)0 = (3-8) (3-3)0 = 00 = (8-8) (8-3)0=0


Related Questions

At the dress shop, Sherry is building buttons into packages. She has reached the 867 th button and is packing the 34 th package when she is asked to take her lunch break . She needs to note the number of buttons that are in the package so when she returned she will continue she will continue . How many buttons does package 34 contain? dont send in file explain plz​

Answers

Answer:

9 buttons in package 34

Step-by-step explanation:

There are 26 buttons in each box.

26 * 33 = 858 for the first 33 full boxes

867 - 858 = 9 buttons in the 34th box

B = buttons per box

33*B<867 --> B < 26.27

34*B>867 --> B > 25.5

So 25.5 < B < 26.27, therefore B = 26 buttons per box

Please help!! I will brainlest your right answer please!!! I am stuck very badly!! Please

Answers

Answer:

See below.

Step-by-step explanation:

2a. E = 8.25h + 1.2n

2b. E = 8.25 * 3.5 + 1.2 * 10 = $40.88

2c. 8.25 * 8 + 1.2n = 91.2

66 + 1.2n = 91.2

1.2n = 25.2

n = 21 magazines.

Answer:

In picture

Step-by-step explanation:

Please give brainliest if it helped, thanks!

Luis's bowling scores were 195, 194, 191, 190, 238, and 192. Which measure (median, mean, mode or range) BEST describes Luis's bowling score? EXPLAIN your answer.

Answers

Step-by-step explanation:

The given data is :

195, 194, 191, 190, 238, and 192

Mean = (sum of observations)/(total no. of observations)

[tex]\text{Mean}=\dfrac{195+194+191+190+238+192}{6}\\\\=200[/tex]

So, the mean is the best measure. Also, w can find median as follows.

arranging in order : 190,191,192, 194, 195,238

Here, n = 6

[tex]\text{Median}=\dfrac{\dfrac{n}{2}^{th}+(\dfrac{n}{2}+1)^{th}}{2}\\\\\text{Median}=\dfrac{\dfrac{6}{2}^{th}+(\dfrac{6}{2}+1)^{th}}{2}\\\\=\dfrac{3^{th}+4^{th}}{2}\\\\=\dfrac{192+194}{2}\\\\=193[/tex]

Hence, this is the required solution

A grocery store owner budgets $5,000 to buy and maintain a booth for 300 days to give out samples of food. If she bought the booth for $1,400, how much money, in dollars, can she spend on food each day for samples and stay within budget? Write an inequality that represents this situation and indicate what the solution to the inequality will look like.

Answers

Answer:

x ≤ $12 a day

Step-by-step explanation:

5000-1400=3600

3600/300=12

Help please, I swear I can't even try on this. I'm just gonna die if I try.

Answers

Answer:

1) word form

three million,two hundred and ninety eight thousand and seventy six

expanded form

5000000+3000+87

2)5,003,087

3)64,000,239

What is the solution to the system of equation?

Answers

The correct answer is (0, 3)

Answer:

x = 0

y = 3

Step-by-step explanation:

-x - 2y = - 6

0 - 2(3) = -6

6 = 6

-3x + 2y = 6

-3(0) + 2(3) = 6

0 + 6 = 6

HURRYYYY. which linear inequality is represented by the graph?

Answers

Answer:

C

Step-by-step explanation:

i did this in 6th grade too man i gotchu

8.
Find the slope of the in line containing the ordered pairs. (7 marks)
a. A(2,-5), B(-2,6)

Answers

Answer:

= -11/4

Step-by-step explanation:

To find the slope given two points

m = ( y2-y1)/(x2-x1)

   = (6 - -5)/(-2 -2)

   = (6+5)/(-2-2)

    = 11/-4

    = -11/4

Answer:

-2.75 (-2 3/4)

Step-by-step explanation:

you can do rise of a run whenever you have two points so you have 6-(-5)/-2-2 and solve so -11/4 and that equals -2.75.

If 1 kg of milk had 0.264 kg of fat, then find the amount fat in 12.5 kg of milk.

Answers

1 kg--> 0.264 kg fat

:. 12.5 kg--> (0.264*12.5) 3.3 kg fat

Mark me brainliesttt :))

which number is represented by the number line

Answers

Answer: B

Step-by-step explanation: The number line has tally marks up to 3, so 3 has to be divided by something, meaning A and C do not work. There are 9 total tally marks circled, so the equation equals 9, leaving B as the only possible answer. Also, there are three tally marks per whole number, so each tally is 1/3, which is equal to 2/6, further proving it is B.

A 7-ounce jar of instant coffee costs $11.78. Find the cost per ounce. Round to the nearest cent.

Answers

Answer:

1.68 per ounce

Step-by-step explanation:

11.78÷7=1.68285714286

1.68285714286 rounded to the nearest cent =1.68

A die has 6 faces numbered 1 to 6.On a single roll of die,find the probability of not getting the number 6

Answers

Step-by-step explanation:

probability of not getting six=5/6

is your answer

Solving right triangles

Answers

Answer:

i can see the actual question, what is it?

In right triangles one of the angles will always be 90 degrees.

So if you had a right triangle with one right angle, a number, and a number, they always have to add up to 90 degrees as well, because a triangle is always 180 degrees

so  

side a = 90side b = xside c = yx + y = 90x + y + 90 = 180

What is the product of (3a)(-6b)(-4)?

Answers

The answer is: 72ab

Explanation:

-6b x -4= 24b (because two negatives make a positive)

24b x 3a= 72ab

HELPPP!!!!! Plzzzz!!

Answers

Given:

Cards labelled 1, 3, 5, 6, 8 and 9.

A card is drawn and not replaced. Then a second card is drawn at random.

To find:

The probability of drawing 2 even numbers.

Solution:

We have,

Even number cards = 6, 8

Odd numbers cards = 1, 3, 5, 9

Total cards =  1, 3, 5, 6, 8 and 9

Number of even cards = 2

Number of total cards = 6

So, the probability of getting an even card in first draw is:

[tex]P_1=\dfrac{\text{Number of even cards}}{\text{Number of total cards}}[/tex]

[tex]P_1=\dfrac{2}{6}[/tex]

[tex]P_1=\dfrac{1}{3}[/tex]

Now,

Number of remaining even cards = 1

Number of remaining cards = 5

So, the probability of getting an even card in second draw is:

[tex]P_2=\dfrac{\text{Number of remaining even cards}}{\text{Number of remaining total cards}}[/tex]

[tex]P_2=\dfrac{1}{5}[/tex]

The probability of drawing 2 even numbers is:

[tex]P=P_1\times P_2[/tex]

[tex]P=\dfrac{1}{3}\times \dfrac{1}{5}[/tex]

[tex]P=\dfrac{1}{15}[/tex]

Therefore, the probability of drawing 2 even numbers is [tex]\dfrac{1}{15}[/tex]. Hence, the correct option is (b).

The class average on a math test was an 82 with a standard deviation of 5. If the 
data is normally distributed, which statements are true?

1. A student scoring a 74  would have a z -score of -1.6.
2. About 68% of the students  scored below an 87.
3. A z-score of 2.6 would be a test 
score of 95.
4. About 16% of the class  scored a 77 or below.
45. About 25% of the class  scored above a 92.

Answers

Answer:

Option 3 and 4.

Step-by-step explanation:

The z score shows by how many standard deviations the raw score is above or below the mean. The z score is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean, \ \sigma=standard\ deviation[/tex]

Given that mean (μ) = 82, standard deviation (σ) = 5

1) For x = 74:

[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{74-82}{5} =-1.6[/tex]

Option 1 is incorrect

2) For x < 87

[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{87-82}{5} =1[/tex]

From the normal distribution table, P(x < 87) = P(z < 1) = 0.8413 = 84.13%

Option 2 is incorrect

3) For x = 95:

[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{95-82}{5} =2.6[/tex]

Option 3 is correct

4) For x < 77

[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{77-82}{5} =-1[/tex]

From the normal distribution table, P(x < 77) = P(z < -1) = 0.16 = 16%

Option 4 is correct

5) For x > 92

[tex]z=\frac{x-\mu}{\sigma} \\\\z=\frac{92-82}{5} =2[/tex]

From the normal distribution table, P(x > 92) = P(z > 2) = 1 - P(z < -2) = 1 - 0.9772 = 0.0228 = 2.28%

Option 5 is incorrect

Use the formula w = to find the value of the missing variable.
T
radians. w
radian per min

Answers

Answer:

Step-by-step explanation:

3
A rectangle is 20 cm long and 8 cm wide find the perimeter
(1 Point)
56 cm
28 cm
110 cm
52 cm

Answers

The general formula for a perimeter of rectangle is 2x(length+width). Here 20 is length and 8 is width. 2x(20+8). 2x(28). 56. The answer is 56.

Layla and Bobby are making potholders with their grandmother. They have a total of 1.5 yards of fabric they can use, and it takes one-eighth of a yard to make each potholder. What is the maximum number of potholders they can make?

Answers

in order to solve this, realize that there are 8 1/8ths in a yard. because you have 1.5 yards, you just multiply 1.5 by 8! then you have an answer.

help jekrjrifirnrifjrnrifn

Answers

Answer:

c

I hope it's the right answer

Pls help me on this lol

Answers

Answer:

I think that this will help you out.

Step-by-step explanation:

HELP ASAP PLEASEE
I WILL MARK BRAINLIST

Answers

Q(x)= (x- 2)(3x+5)(x+4)

Customers can pick their own cherries at cherry hill. they pay $4 to enter the farm and $3.50 per pound for the cherries they pick. write an equation to model the total cost, y, for x pounds of cherries

Answers

Answer:

The Equation would be $4 + $3.50x = y

Step-by-step explanation:

8. What is the equation of the line that passes through the points (0,5) and (1,7)
a. y = 3x - 3
b. y = 2x + 5
y = 4x - 1
d. y = 1/2x + 5

Answers

Answer:

B. y = 2x + 5

Step-by-step explanation:

Slope intercept formula y=mx+b

Slope formula y1-y2/x1-x2

First, let's find slope since we are provided 2 pairs of points, we can simply plug in our numbers in the Slope formula (y1-y2/x1-x2)

5-7/0-1

-2/-1

2/1

=2

Slope (m) = 2

Now using slope let's find our y-intercept (b) to plugin in our slope intercept formula (y=mx+b) for this let's use point 0,5

y=2x+b

5=2(0)+b

5=b

Y-intercept (b) = 5

Now let's plug in the slope (m) and the y-intercept (b) into the slope-intercept formula (y=mx+b)

y=mx+b

y=2x+5

So therefore our answer is B

Two circles have a scale factor of 3:2. What is the ratio of the circumferences of these circles?

A. 12:26
B. 13:12
C. 9:4
D. 3:2

Answers

Answer:

3:2

Step-by-step explanation:

The circumference is a distance.  The ratio of the distance is the same as the scale factor.  The ratio of the areas is the ratio of the scale factor squared and the volume is the scale factor cubed.

what does the challenges do?

Answers

Answer:

question that must be answered in a given time for a lot of points

Answer:

so if you do them the percentages will increase and you will get points so gou can ask questions i did one and spent all 100 just for someone to translate im s-t-u-p-i-d and then i commented no youre not

What is the nth term rule of the linear sequence below?
22,18,14,10,6.....

Answers

Answer:

it goes down by 4 every time

12% of 4 meters ( in cm) ​

Answers

Answer:

48 cm

Step-by-step explanation:

percent x meters x centimeters in meters

.12 x 4 x 100

Answer:

48 cm

Step-by-step explanation:

12/100 * 4 = 48 meters

1 meter = 100 cm

0.48 m = x                        Cross Multiply

1*x = 0.48 * 100

x = 48 cm

may I please have help from anyone thank you so much !

Answers

12•11•h=2,244 would be right :)

Darryl was shopping for a new camera. He found one with an original price of
$125.00 and is marked 45% off. Sales tax for the item is 5.2%. What is the final
price of the camera, including tax?

Answers

Answer:

$72.33

Step-by-step explanation:

125 * 0.45 = 56.25

125 - 56.25 = 68.75 (marked off price)

68.75 * 1.052 = 72.33 (add sales taxes and round off)

Final price $ 72.33

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