Answer:
[tex] x = - 4, \: \: x = 1 \frac{1}{2} [/tex]
Step-by-step explanation:
[tex]2 {x}^{2} + 5x - 12 = 0 \\ \\ 2 {x}^{2} + 8x - 3x - 12 = 0 \\ \\ 2x(x + 4) - 3(x + 4) = 0 \\ \\ (x + 4)(2x - 3) = 0 \\ \\ x + 4 = 0, \: \: 2x - 3 = 0 \\ \\ x = - 4, \: \: x = \frac{3}{2} \\ \\ x = - 4, \: \: x = 1 \frac{1}{2} [/tex]
Paul asked four friends how many hours of tv they watch and their grade on a recent test
Answer: D
Step-by-step explanation: The answer wouldn't be A because all the information is there, B is out because the question tells you there is a correlation between the two, and C is out because it has a more negative affect than positive.
Two trains on opposite tracks leave the same station at the same
time. One train travels at an average speed of 80 kilometers per
hour and the other travels at an average speed of 70 kilometers
per hour. How long after they leave the station will they be 50
km apart?
Answer:
20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time.
Step-by-step explanation:
One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.
Find the area of the figure.
Answer:
840cm² its 840cm²
Help! Will give brainliest to first correct answer.
Answer:
a) 7n
b) n+7
c) n -7
d). [tex]\frac{n}{7}[/tex]
Step-by-step explanation:
All you have to do for this question is look at the key words. These will help you find the correct answers.
Product = multiplication (x)Sum = addition (+)Difference = subtraction (-)Quotient = DivisionBusiness bankruptcies in Canada are monitored by the Office of the Superintendent of Bankruptcy Canada (OSB).8 Included in each report are the assets and liabilities the company declared at the time of the bankruptcy filing. A study is based on a random sample of 75 reports from the current year. The average debt (liabilities minus assets) is $92,172 with a standard deviation of $111,538.
a) Construct a 95% one-sample t confidence interval for the average debt of these companies at the time of filing.
b) Because the sample standard deviation is larger than the sample mean, this debt distribution is skewed. Provide a defense for using the tconfidence interval in this case.
Answer:
a) 70,663.57< [tex]\overline x[/tex] < 113,680.43
b) The sampling distribution of the means is expected to be approximately normal given that n > 30
Step-by-step explanation:
The given parameter of the study are;
The number of reports in the study, n = 75 reports
The average debt, [tex]\overline x[/tex] = $92,172
The standard deviation, Sₓ = $111,538
a) A one-sample t confidence interval is given as follows;
The Degrees of Freedom, df = n - 1 = 75 - 1 = 74
[tex]C.I, = \overline x \pm t^* \cdot \dfrac{S_x}{\sqrt{n} }[/tex]
[tex]t^*[/tex] = The critical t, at 95% confidence level = 1.67
Therefore, we have;
[tex]C.I, = 92,172 \pm 1.67 \cdot \dfrac{111,538}{\sqrt{75} }[/tex]
Therefore, we have;
[tex]C.I, = 92,172 \pm 1.67 \cdot \dfrac{111,538}{\sqrt{75} }[/tex]
C.I. = (92,172 ± 21,508.43)
Therefore, the 95% one-sample t confidence interval for the average debt of the companies at the time of filing, C.I. = 70,663.57< [tex]\overline x[/tex] < 113,680.43
b) The defense for using the t confidence interval in the question is supported that the fact that the sample size is larger than 30 (n = 75) the sampling distribution of means will be approximately normal and the population mean will be between the confidence interval for the mean.
I’m pretty sure the answer is a ?
Six numbers from a list of nine integers are 7,8,3,5,9 and 5. Find the largest possible value of the median of all nine numbers in this list.
Step-by-step explanation:
Arranging the data in order,
3,5,5,7,8,9
The three numbers are missing.
Median = (9+1)/ 2
= 5
So the median is 5th term.
Median = 8
Answer:
Median=8
Step-by-step explanation:
given numbers ⇒7,8,3,5,9 and 5.
Arrange numbers in order ⇒ 3,5,5,7,8,9
insert three numbers into the list
median will be highest 5 and the and 5 lowest on the list
If the three numbers are greater than 9 then the median be the highest
The median is the 5th item of data which is 8
median =8
hope it helps ^_^
$29, $58, $15, $129, $75, and $22. Find the mean absolute deviation
Answer:
$54.67
Step-by-step explanation: sorry if im wrong i tried
During July in Jacksonville florida
Answer:
yo i live in florida
Step-by-step explanation:
How many solutions does the system of equations have?
a. no solution
b. one solution x=0, y=5
c. One solution x=1, y=4
d. Infinitely many solutions
Answer:
one solution at x=1,y=4 point
Calculate the value of the expression. 4+2 (17 – 12)
Answer:
14
Step-by-step explanation:
4+34-24 (distribute)
the square root of 125 is closest to what whole number? *
Answer:
11
Step-by-step explanation:
the square root of 125 is 11.18033989 so when you round it you get 11
Can someone please help i would really appreciate it
Answer:
[0, -7, 1]
[0, 3, 4]
Cart 1 (500 g) moves to the right at 0.40 m/s. Cart 2 (250g) moves to the left at 0.50 m/s. a. If the carts stick after the collision, what will be their velocity?
Answer:
after the collision cart 1 will stop and cart 2 will keep moving will 0.1.m/s after stop.
What is 985 + 700 + 75 + 10 + 200 - 110?
Answer: 1460
Step-by-step explanation: I put it in a calculator.
This graph is the parent function of quadratic functions
True or false
An expression is shown.
95-34
What is the value of the expression?
Answer:
61
Step-by-step explanation:
95
- 34
_______
61
PLEASE ANSWER ASAP FOR BRAINLEST SUPER EASY QUESTION!!!!111111111111
What is 1906.624 rounded to the nearest hundredth?
Answer:
1906.62
Step-by-step explanation:
hope this helps
Games at the carnival cost $3 each. The prizes awarded to winner cost $145.65. How many games must be played to make at least $50?
Answer:About 17 games
Step-by-step explanation:
$50 divided by $3 is about 17 games
Help rn ahhhh please
Answer:
117π or 367.56634047
Step-by-step explanation:
Volume = π × r² × h (r=radius and h=height)
Volume = π × 4² × 13
Volume = π × 9 × 13
Volume = π × 117
Volume = 117π
Select the correct answer from each drop-down menu.
A cylinder has a diameter of 10 units.
Its radius is
units. If its height is twice its radius, its height is
units. Its volume is about
cubic units
Answer:
1st blank: 5
2nd blank: 10
3rd blank: 785
Step-by-step explanation:
the radius of a circle or the base/top of a cylinder is measured from the center to the side of the face, where as the diameter is measured from side to side through the middle, so the diameter will always be twice the radius of the same circle, meaning if the diameter is 10 units, then the radius will be half that, 5 units, then all we do is double the radius like the question says to get the height (NOTE this is NOT part of any formula for finding any dimensions for any shape and is specific to this question) then all we do to find the volume is use the formula below
V = (pi) (r^2) h
plug the radius or 'r' in as well as height or 'h' in the equation and solve
PLEASE NOTE: the question is asking for an APROXAMATE so your answer should be close to one of the drop down options by about >1 integer, but will not be exact
I’ll reward brainiest it’s super easy
Answer:
D 21
Step-by-step explanation:
Good Luck!
The three angles of triangle are in
the ratio 2:3:5. Calculate the size of
the smallest angle.
A. 90°
B.549
C.36
D. 30°
E. 20°
AN
D
♡
Answer:
E I think
..........hope this helps
okok so this isnt a question but as i was scrolling through brainly and suddenly the lights went off and everybody was in the living room, the door was closed and it wasnt a electricity problem somrwiefnau help im nervous i don know what to do
Ms. Annand baked an apple pie. The boys in the house ate ⅛ of it and the girls ate 3/5. What fraction of the pie did the boys and girls eat altogether? Please answer
Answer:
29/40
Step-by-step explanation:
1/8 + 3/5 =
We need a common denominator.
8 = 2^3
5 = 5
8 and 5 have no common factors, so the LCD is their product.
LCD = 5 * 8 = 40
1/8 + 3/5 =
= 5/40 + 24/40
= 29/40
Soleil and Malvin each work a job. Soleil starts with $700 and makes $100 per day. Malvin starts out with $200 and makes $120 per day. After how many days will they have at least $5000 all together?
Answer:
Soleil and Malvin would have $ 5,000 all together after 13 days.
Step-by-step explanation:
Since Soleil and Malvin each work a job, and Soleil starts with $ 700 and makes $ 100 per day while Malvin starts out with $ 200 and makes $ 120 per day, to determine after how many days will they have at least $ 5000 all together it must be done the following calculation:
5,000 - 700 - 200 = 4,100
200X + 120X = 4,100
320X = 4,100
X = 4,100 / 320
X = 12.8
So Soleil and Malvin would have $ 5,000 all together after 13 days.
Please help! Answer and explanation please!
Answer:
12
Step-by-step explanation:
Since we can infer that those lines are the same length...
5x-15 = 3x+9
2x -15 = 9
2x = 24
x = 12
PLEASE PLEASE HELP!! A ferris wheel with a radius of 38 feet rotates at a rate of 8 revolutions per minute. The height above the ground of the carriage labeled C below is a function of time, t, in minutes
Mike did so well with his bike sale, he's going to Discount his helmets 15% off. If the Sale Price is $23.80, find the ORIGINAL PRICE of a helmet.
Answer:
$3.57
Step-by-step explanation:
Multiply $23.80 by %15
Change %15 to a decimal by multiplying it by 100.
0.15 x $23.80= $3.57
Can anyone help me with my homework