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:
It's c
Step-by-step explanation:
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
.
Answer:
Both 6 and 3 would be negative
Step-by-step explanation:
Both are on the -x and -y side of the graph
what does Striking deviations mean? Or overall patterns
Answer:
Striking Deviations AKA Outliers are FAR from the box plot
Step-by-step explanation:
Put an Actual reasonable answer for the question please.
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.
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
Answer:
a is answer correct i think
Step-by-step explanation:
HELP MEEEEEEEEEEEEEEEEEE!!!
THANK YOU!!!!!!!!!!!!
Answer:126
Step-by-step explanation:
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.
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.
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?
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.
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?
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:
20 points to whoever gets these right!! <3
Answer:
1st one 8/20
Step-by-step explanation:
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)
which graph represents the function? NEED ANSWER ASAP 20 POINTS!!
Answer:
oof i have no clue
Step-by-step explanation:
sorry never learned this type of graphs good luck tho
help me pls.
-hummus
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
Answer:
m > -50
Step-by-step explanation:
In pic
(Hope this helps can I pls have brainlist (crown)☺️)
Answer:
Step-by-step explanation:
I do not know how the answer is that.
QUESTION 8,9,10,11, PLEASE DO ALL OF THEM I WILL MARK BRAINIST!!!
please help me with this
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
Please help 5 points each but beware if you use my points for no reason I'll report you
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
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 (???)
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.
Answer:
588
Step-by-step explanation:
Can someone please help asap
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)
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.
*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.
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
I need to get aleks done on june 3oth
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
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.
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.
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
(PLease Help) Here is a picture of The math problem ;-;
Answer:
i dont know but ii wish i could help
Step-by-step explanation: