Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation 2x2 + 4x + 8 = 0.
Which explanation could Anderson provide?
The equation has no real number solutions because the discriminant is 0.
The equation has one real number solution because the discriminant is 0.
O The equation has no real number solutions because the discriminant is less than 0.
The equation has two real number solutions because the discriminant is greater than 0.
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Answers

Answer 1

Answer:

No real number solutions.

Step-by-step explanation:

Given a quadratic equation in standard form

ax² + bx + c = 0 ( a ≠ 0 )

The discriminant is b² - 4ac

• If b² - 4ac > 0 the equation has 2 real and distinct roots

• If b² - 4ac = 0 the equation has 2 real and equal roots

• If b² - 4ac < 0 the equation has no real roots

Given

2x² + 4x + 8 = 0 ← in standard form

with a = 2, b = 4 and c = 8, then

b² - 4ac = 4² - (4 × 2 × 8) = 16 - 64 = - 48 , thus

The equation has no real number solutions because the discriminant is < 0

Answer 2

Answer:

It's c

Step-by-step explanation:


Related Questions

29 PTS! For Point A (m,n) to fall in the correct quadrant, if the value of m is 6, the 6 would be
, and if the value of n is 3, the 3 would be
.

29 PTS! For Point A (m,n) to fall in the correct quadrant, if the value of m is 6, the 6 would be , and

Answers

Answer:

Both 6 and 3 would be negative

Step-by-step explanation:

Both are on the -x and -y side of the graph

Only 15 points not 29

what does Striking deviations mean? Or overall patterns

Answers

Answer:

Striking Deviations AKA Outliers are FAR from the box plot

Step-by-step explanation:

Put an Actual reasonable answer for the question please.

Put an Actual reasonable answer for the question please.

Answers

Answer:

D (Alicia did 5 more jumping jacks per minute than Melissa.)

Step-by-step explanation:

Alicia's rate is 30 jumping jacks per minute. You can use the formula m=(y2-y1)/(x2-x1) to find the slope/rate. The two points in the table you can use are (1,30) and (2,60). You can plug those coordinates into the slope formula. (60-30)/(2-1)=30/1= 30 jumping jacks per minute.  To find the rate of change/slope for Melissa, you can use the same formula m=(y2-y1)/(x2-x1). The two points you could plug in are (0,0), and (4,100). (100-0)/(4-0)=100/4=25. Melissa does 25 jumping jacks per minute.

That’s hard wow ur smart I cant

If f(x) = 3x + 10x and g(x) = 4x – 2, find (f + g)(x).

A. 3x – 6x + 2
B. 3x + 6x + 2
C. 17x – 2
D. 3x + 14x – 2

Answers

Answer:

a is answer correct i think

Step-by-step explanation:

HELP MEEEEEEEEEEEEEEEEEE!!!
THANK YOU!!!!!!!!!!!!

HELP MEEEEEEEEEEEEEEEEEE!!!THANK YOU!!!!!!!!!!!!

Answers

Answer:126

Step-by-step explanation:

The answer is 126 hope this helps

C. Ben and Michael also participated in the long jump. Michael jumped 334 thousandths of a meter less than Kevin. Ben jumped farther than Michael but not as far as Kevin. Write a decimal to the thousandths that is greater than Michael's distance and less than Kevin's distance. Explain the reasoning you used.

Answers

Answer

Kevin jumped 1.55 meters

Ben jumped 1.445

micheal jumped 1.201

Step-by-step explanation:

The reason I used those numbers is Kevin jumped the highest, so I made him jump the farthest. Micheal jumped 334 thousandths of a meterless than Kevin so I put he jumped 1.201.

A store that buys and sells used video games buys a game at a cost of ​$9 and sells it at a selling price of ​$13. Find the markup. Then find the percent markup.

Answers

33.3%

Hshsjsjsjsjsjsjshsjsjsshssjd

A rectangular lawn is 15 yards by 26 yards. It would cost $9.00 per yard to install a fence around the lawn. How much would it cost to put a fence around the lawn?

Answers

Answer: $738

Step-by-step explanation:

Find the perimeter:

15 + 15 + 26 + 26 = 30 + 52 = 82 yards.

Since it's $9 per yard, multiply:

82 · $9 = $738

Answer:

The answer is $738

Which scenario can be modeled by the linear function
y = -15x + 500?

A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.

B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.

C. A carpet cleaning service charges $500 plus an additional $15 for every hour.

D. A membership fee for a movie streaming service is free, but each rental costs $15.

Answers

I think the answer is C
The answer is a because it is able to be modeled unlike the rest

Melissa is making clothes for her dolls. She has 7/8 yd of fabric. Each doll shirt requires 2/7 of a yard of fabric. How many shirts can she make for her dolls?

Answers

Answer:

She can make 3 whole shirts.

First shirt - 2/7 leaving 5/7Second shirt - 2/7 leaving 3/7Third shirt - 2/7 leaving 1/7

Step-by-step explanation:

The answer is 3 whole shirts

20 points to whoever gets these right!! <3

20 points to whoever gets these right!! &lt;3
20 points to whoever gets these right!! &lt;3

Answers

Answer:

1st one 8/20

Step-by-step explanation:

Last one is the two way tables it should be 6/8

Triangle ABC is going to be dilated by a scale factor of 3.
If A is located at (-1,2), where will A' be located?
Select the correct response:
(-1,6)
(-3,6)
(3,-6)
(-3,2)

Triangle ABC is going to be dilated by a scale factor of 3.If A is located at (-1,2), where will A' be

Answers

i was so confused so this
It kind of depends if it is dilated at the origin it would be -3,6

which graph represents the function? NEED ANSWER ASAP 20 POINTS!!

which graph represents the function? NEED ANSWER ASAP 20 POINTS!!

Answers

Answer:

oof i have no clue

Step-by-step explanation:

sorry never learned this type of graphs good luck tho

help me pls.

-hummus

help me pls.-hummus

Answers

Answer:

minimum number-0

mean- 10.83

median-10

Step-by-step explanation:

Answer:

The minimum number is 0,

The mean is 11,

and the median is 10

Step-by-step explanation:

The minimum number is the smallest number in a data set, so that's 0.

The mean is the average of all the numbers, so if you add all the numbers in a data set together and then divide by the amount of numbers there are, you get the mean. 10 + 25 + 0 + 5 + 10 + 15 is 65, and 65 divided by 6 is 11. [Rounded to the nearest whole number.]

The median is the number that is right in the middle of the data set, so 10 is right in between 0 and 25.

Solve for m.
3/5m > -30

Answers

Answer:

m > -50

Step-by-step explanation:

In pic

(Hope this helps can I pls have brainlist (crown)☺️)

Solve for m.3/5m &gt; -30

Answer:

Step-by-step explanation:

I do not know how the answer is that.

Solve for m.3/5m &gt; -30

QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!

QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!
QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!
QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!
QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!

Answers

Question 10 is (2,-2)

please help me with this

please help me with this

Answers

Answer:

7/8 . 6/7

9/10 . 5/6

Step-by-step explanation:

B and C or you could say 2 and 3 are the right ones

1/2x1/2 = 0.25
7/8 x 6/7 = 0.75
9/10 x5/6 = 0.75
3/4x 3/4 = 0.5625
1/4 x 1/2 = 0.125
So its B and C because 0.75 as a fraction is 3/4!

Please help 5 points each but beware if you use my points for no reason I'll report you

Please help 5 points each but beware if you use my points for no reason I'll report you

Answers

82944 cubic centimetres do u need an explanation?

Answer:

576 cubic centimeters

Step-by-step explanation:

V=1/3Bh
V= 1/3(144)(12)
V=576

An image of a rhombus is shown.

a rhombus with a base of 18 centimeters and a height of 15.5 centimeters

What is the area of the rhombus?

16.75 cm2
33.5 cm2
139.5 cm2
279 cm2

Answers

Answer:279 cm²Step-by-step explanation:

Formula used,

Area of rhombus = Base × height

Substituting the values,

\( \longrightarrow\)Area = 18 × 15.5

\( \longrightarrow\) Area = 279 cm²

Therefore, 279 cm² is the area of the rhombus .

Answer:

D) 279 cm²

Step-by-step explanation:

Area of a rhombus formula:
\(A=bh\)

This formula is also used for squares and rectangles.

So, we can substitute in our values such as:

A=(18)(15.5)

simplify

A=279

Now, add our label and units:

A=279 cm²

Hope this helps! :)

PLEASE HELP ME IM BEGGING YOU: Rectangle QUAD has coordinates Q(0,0), U(0, 3), A(5, 3), and D(5,0). Q'U'A'D' is the image of QUAD after a dilation with center (0,0) and scale factor 6. What are the coordinates of point U'?
The coordinates of point U' are (???)

Answers

there isn’t enough information to sander
I’m cracked at smugness so I’m big brain

Rigoletto’s portraits specializes in making circular portraits of people. A large portrait is 42 inches in diameter. A medium portrait is 14 inches in diameter. What is the difference in circumference of the two portraits? Use 3.14 for pi.

Answers

Answer:

588

Step-by-step explanation:

Can someone please help asap

Can someone please help asap

Answers

Answer:

If asking for the coordinate points for D, then it's (0, -1).

If asking for the coordinate points for B, then it's (4, 3).

Step-by-step explanation:

Count left or right for x, and count down or up for y.

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.


Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside


Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

1. Find ƒ(30) and explain what it means in the context of the problem. 3. I
2. f ƒ(x) = 100, find all values of x and explain what they mean in the context of the problem.
3. If ƒ(x) = 300, find all values of x.

1. Find (30) and explain what it means in the context of the problem. 3. I2. f (x) = 100, find all values

Answers

*ahem

1. f(30) is 200

it means when x is 30, what is y

2.f(x)=100, so x=10 and 110

its means when y is 100, what are the x values that correspond with it

3. f(x)=300, so x is any number including and between 40 and 100

In the diagram below, all angles are given in degrees (°)
Find the value of x.

In the diagram below, all angles are given in degrees ()Find the value of x.

Answers

Answer:

\(x=20^o\)

Step-by-step explanation:

from the diagram, we can define the remaining angle in the quadrilateral through the sum of angles in any quadrilateral, which is \(360^o\), so the remaining unknown angle should be:

\(360-(50+2x+x)=310-3x\)

now that we have the unknown angle, we can find x through the point at which the outer angle is. \(x+90\) degrees. (sum of angles at one point is 360 degrees)

\(310-3x +x+90=360\\\\400-2x=360\\2x=400-360\\x=20^o\)

The value of variable x is,

x = 20

We have to given that,

In the diagram below, all angles are given in degrees.

Since, the sum of angles in any quadrilateral is, 360 degree.

Let measure of fourth angle is, y

Hence, We get;

(50 + 2x + y + x ) = 360

50 + 3x + y = 360

3x + y  = 360 - 50

3x + y = 310

y = 310 - 3x

Now, We get;

(310 - 3x) + (x + 90) = 360

Solve for x,

310 - 3x + x + 90 = 360

400 - 2x = 360

400 - 360 = 2x

2x = 40

x = 40/2

x = 20

Therefore, The solution is, 20

Learn more about the angle visit:;

https://brainly.com/question/25716982

#SPJ2

Who created the pie symbol in math

Answers

William Jones created the pie symbol

I need to get aleks done on june 3oth

I need to get aleks done on june 3oth

Answers

Answer:

3.2

Step-by-step explanation:

Since it is similar, we know that the sides are gonna be directly proportional so

QR (6.4) / BC (4) = scale factor of 1.6

1.6 x 2 = 3.2

Answer is 3.2 to your aleks

WHERE's the POINT?

Identify the location for the ordered pairs.

A (2, 4)

B (-6, -8)

C (10, -12)

D (-14, 16)

E (0, 18)

F (-20, 0)

Explain how you would graph (plot) point F on a coordinate plane.

WHERE's the POINT?Identify the location for the ordered pairs.A (2, 4) B (-6, -8) C (10, -12)D (-14,

Answers

Go 20 units left and down 0

Answer:

I would go to Quadrant II and first look on the x-axis to look for negative twenty (-20) and look both the x and y axis for 0 (the origin). Plot the point by putting the -20 on the horizontal line and 0. For example: (Look at the scrrenshot) P.S. sorry if it looks weird.

WHERE's the POINT?Identify the location for the ordered pairs.A (2, 4) B (-6, -8) C (10, -12)D (-14,

Use absolute value to express the distance between −13 and 17 on the number line.

|−13 − 17| = −30
|−13 − 17| = 30
|−13 − 17| = −4
|−13 − 17| = 4

Answers

Just do your work and pay attention in class!!!!
The answer is 4 I think

(PLease Help) Here is a picture of The math problem ;-;

(PLease Help) Here is a picture of The math problem ;-;

Answers

I’m not sure why no area is given, but the answer is height= (2*Area)/(3.2+7)

Answer:

i dont know but ii wish i could help

Step-by-step explanation:

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