Answer:
Graph is below.
Step-by-step explanation:
The solutions of the equations are : x = [8 ± √ 40] / 4
Given,
Y=2x² - 8x+3
Now,
To get the solution of equation equate it to 0 .
2x² - 8x+3 = 0
By quadratic formula,
x = -b ± √ b² - 4ac/2a
Substitute the values in the formula,
x = [8 ± √ 64 - 4(2)(3)] / 2* 2
x = [8 ± √ 40] / 4
Now plot the points in the graph. The graph is attached below.
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Find the length median of the trapezoid( 20 points and brainliest if answered)
Answer:
1.=8.1
2.=10.4
Step-by-step explanation:
The expression 42+57 shows how much money Nate spent at a store. Which expression also shows how much money Nate spent?
3(14+19)
3(14x19)
6(7+57)
6(7x57)
Answer:
6(7x57)
Step-by-step explanation:
Lucinda Lopez earns a 3 percent commission on all sales. She also receives a $500 bonus if her commission exceeds $2,000. Her total sales were $75,500. What was her total pay?
Answer:
total pay $2,750.00
Step-by-step explanation:
first multiply. 03×75,000= $2250.00 (thats how mich commission she has made
then add 500 be she exceeded the 2000 amount
2250+500= $2,750.00
Can someone please help
Answer:
B. m - 2 = 28
Step-by-step explanation:
minutes it took Teri to run the race = m
Julie runs 2 mins faster than Teri and is expressed as m - 2 = 28 mins
Equation that can be used is:
m - 2 = 28
the system has.......
Answer:
Pretty sure it's one solution
Step-by-step explanation:
Answer:
An infinite number of solutions.
Step-by-step explanation:
Whenever lines overlap each other, it means they have an infinite number of solutions.
help me please this is due today
Answer:
490
Step-by-step explanation:
19.6
25
980
3920
4900
then add the decimal
490.0
Please help me with my acellus
Answer: x = 32°
Step-by-step explanation:
(3x - 4) + (3x - 8) = 180
3x - 4 + 3x - 8 = 180
6x - 12 = 180
6x - 12 + 12 = 180 + 12
6x = 192
6x ÷ 6 = 192 ÷6
x = 32
16 decreased by a number is - 5
The volume of a cylinder can be found by multiplying the area of its base by its height. A cylinder is 10 inches tall and has a volume that is less than 400 cubic inches. Which inequality can be used to determine the base area, B, of the cylinder?
StartFraction B Over 10 EndFraction greater-than 400
StartFraction B Over 10 EndFraction less-than 400
10 B greater-than 400
10 B less-than 400
WILL RATE BRAINLY
Answer:
B < 400/10
Step-by-step explanation:
The volume of a cylinder is the Area of the base (B) times the height
V(c) = B*h h 0 10 in then V(c) = 10*B
if volume as problem statement is less than 400 in³ then the inequality is:
10*B < 400
B < 400/10
hope this helps!
Answer:
b
Step-by-step explanation:
I need the answers. Please hurry.
Answer:
A.She used the incorrect inverse operation.
Step-by-step explanation:
Hopefully it is help
What is the solution to the system of equations?
a(5,0)
b(0,5)
c(0,-5)
d(-5,0)
Answer:
(0,-5) because is there when the line cross
i need help please rational or irrational question
Answer:
B A A B A
Step-by-step explanation:
Ryan wrote the expression [3+ (8.8 = 4)] – 1.9. Evaluate the expression. (8–3)
A 1.5
B 3.3
C 5.5
D 7.1
solve for x |2x-8|>6
Answer:
x > 7
Step-by-step explanation:
2x - 8 > 6
2x > 6 + 8
2x > 14
x > 7
Which of the follwoing is irrational?
-7/4
2/3
square root of 3
square root of 4
Answer:
i think it's square foot of4
Choose all that apply. An individual’s financial irresponsibility may affect _____. them people they know people they don’t know the community the global community
Answer:
an individual's financial irresponsibility may affect them
Answer:
An individual’s financial irresponsibility may affect the community
Step-by-step explanation:
Write an expression that has three terms, two diffrent variables, and one constant.
Answer:
x + y + 1
or
xy + y² + 2
or
x² + y² - 1
or
a²b + b³ + 3
Step-by-step explanation:
You can use x and y as the two variables. Then add them to make is x + y (this is already two variables and two terms). Add a constant, say 1. So x + y + 1, now we have three terms with two different variables and one constant.
Or you can also make it xy + y² + 2 or x² + y² - 1 by adding exponents to each of the variable.
You can choose one from the above or you can make your own (it depends on you).
Calculate the momentum of a 700 g ball that is rolling down a ramp at 4.6 m/s.
Please answer the attached question
Answer:
Step-by-step explanation:
...
Answer:
b) time to finish the race
c) score on science test
Step-by-step explanation:
I am struggling a bit
Answer:
No
Step-by-step explanation:
try to graph the points on a graph or on a graphing calculator,
heres an image:
The number has digits 2, 7, and 5.if u round to the nearest 100. It will be 800. What is the number?
Answer:
752
Step-by-step explanation:
752 are the only digits that when put together, round to 800.
4) some one pls help me
Your answer would be C
Step-by-step explanation:
Answer: The answer is B
Step-by-step explanation this is the answer because when you write a number line vertically then it's oriented from top to bottom
4х+6y = 40
2х+бу= 26
How do u do the work for this equation
Please answer this question it is due 5:00
Answer:
x=3
Step-by-step explanation:
15+17+5x = 47
if you add 15 and 17 just to make it easier, you get....
32+5x = 47
what I did next was minus 32 from each side.
so you are left with....
5x = 15
divide each side by 5 and you get
x = 3
you can go back and make sure that- that is right by doing 15+17=32 and
5x3 = 15 then add them together, 32+15 = 47
Mr. Hammond is the volunteer coordinator for a company that puts on running races. Last year, the company organized 7 short races and 8 long races, which required a total of 804 volunteers. This year, the company organized 11 short races and 5 long races, which required 688 volunteers in total. How many volunteers does each type of race require?
Answer:
28 short race volunteers
76 long race volunteers
Step-by-step explanation:
Let :
Short races = a
Long races = b
LAST YEAR:
7a + 8b = 804 - - - - (1)
THIS YEAR:
11a + 5b = 688 - - - (2)
Multiply (1) by 5 and (2) by 8
35a + 40b = 4020
88a + 40b = 5504
Subtract
-53a = - 1484
a = 1484 / 53
a = 28
Put a = 28 in equation (1)
7(28) + 8b = 804
196 + 8b = 804
8b = 804 - 196
8b = 608
b = 76
28 short race volunteers
76 long race volunteers
give answer to d - 4 = 19 d=15
Answer:
Step-by-step explanation:
d-4=19d=15
We move all terms to the left:
d-4-(19d)=0
We add all the numbers together, and all the variables
-18d-4=0
We move all terms containing d to the left, all other terms to the right
-18d=4
d=4/-18
d=-2/9
32 athletes are going camping for the weekend. Three athletes can sleep in one tent. What is the minimum number of tents that will be needed?
Minimum number of tents are 11.
Here,
32 athletes are going camping for the weekend.
3 athletes can sleep in one tent.
We have to find the minimum number of tents.
What is Number system?
A system of writing to express number is called Number system.
Now,
Number of athletes = 32
Number of athletes in one tent = 3
Hence, Minimum number of tents = 32 ÷ 3
We get 11 tents for 32 athletes.
Therefore, Minimum number of tents are 11.
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Sean is travelling. He has a flight of 3 hours 20 minutes, a stopover of 40 minutes and then
another flight of 2.75 hours. What is his total travel time? Give your answer in hours and
minutes.
Answer:
converting to minutes
Step-by-step explanation:
3*60+20+40+2.75*60=405 min = 6 hours 45 minutes
Answer:
6 hours and 45 minutes
Step-by-step explanation:
2.75 hours = 2 hours and 45 minutes
3 hours 20 minutes
0 hours 40 minutes
2 hours 45 minutes
5 hours 105 minutes
6 hours 45 minutes
A random sample of 400 CLU students is taken. 395 students reported that Econ 311 was their favorite class. Calculate the margin of error for a 96% confidence interval.
Answer:
The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is given by:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
For this problem, we have that:
[tex]n = 400, p = \frac{395}{400} = 0.9875[/tex]
96% confidence level
So [tex]\alpha = 0.04[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.04}{2} = 0.98[/tex], so [tex]Z = 2.056[/tex].
Calculate the margin of error for a 96% confidence interval.
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]M = 2.056\sqrt{\frac{0.9875(0.0125)}{400}}[/tex]
[tex]M = 0.0114[/tex]
The margin of error for a 96% confidence interval is of 0.0114 = 1.14%.
A housefly can fly about 6.4 feet per second. At this rate, how far can it fly in
25 seconds ?
Answer:
1 second = 6.4 feet
25 seconds = 6.4 * 25 = 160 feet
Answer:
160ft
Step-by-step explanation:
So we already know the unit rate, all we need to do is find how many times the fly can go 6.4 feet in 25 seconds, so our equation is:
25 x 6.4 = 160
So our housefly can fly 160 feet in 25 seconds