Answer:
5n(2n^2-7n+5)
Step-by-step explanation:
Is the average amount spent on textbooks per semester by accounting majors significantly
different from the average amount spent on text books per semester by management majors?
Answer this question with a 90% confidence interval using the following data from random
samples of students majoring in accounting or management. Discuss the assumptions
A confidence interval is simply the range of estimates for an unknown parameter, which is defined as an interval with a lower bound and an upper bound.
What is a confidence interval?
Your information is incomplete as the data is not given. Therefore, an overview of the confidence interval will be given.
A 90% confidence interval means that the researcher is 90% confident that the values of the results will simply fall between the upper and lower limits if the procedure is repeated again.
You can find a confidence level for data by simply taking half of the size of the confidence interval, then multiplying it by the square root of the sample size, and then dividing by the sample standard deviation.
Finally, look up the resulting Z or t score in a table in order to find the level.
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Find the slope of the line that passes through the following two points: (3, -7) and (5, -15) Give your answer as a number, rounded to the nearest tenth, if necessary
Answer:
the slope should be -4
Step-by-step explanation:
to find the slope we use the equation y2 - y1/ x2 - x1
-15 - (-7) / 5 - 3
-15 + 7 / 2
-8 / 2
-4
Find the number of solutions of the equation 9x^2+x+1=0 by using the
Answer:
x =(2+√40)/18=(1+√ 10 )/9= 0.462
or:
x =(2-√40)/18=(1-√ 10 )/9= -0.240
pleaseeeeee helppppp
Answer:
240 ounces is your answer
ABC DEF. The area of DEF is given. Find the area of ABC.
Answer:
C. 240 in^2
Step-by-step explanation:
is it stated that two triangles are similar.
If they are similar then their area must be proportional too.
The side lengths' proportion is :
12/60 = 1/5 this can be used to find the area of the smaller triangle, ABC
Let x represent the are of triangle ABC
1/5 = x/1200 cross multiply both sides
5x = 1200 divide both sides by 5
x = 240 since the area is indicated with square value so the answer is
C. 240 in^2
Answer:
b
Step-by-step explanation:
In this figure, 52.9% of the area is painted yellow. How much of the area is painted yellow? 22.218 in² 25.921 in² 44.436 in² 48.139 in² A square with sides measuring 7 inches. A right triangle attached to one side of the square has a long leg of 12 inches.
Answer:
the answer is 48.139 in²
Step-by-step explanation:
I took the test.
48.139 in² of the figure area is painted yellow in color.
What is an area?An area is amount of space occupied by a two dimensional shape or object.
The area of the figure = Area of the square + Area of the triangle
Area of the figure = (7 in * 7 in) + (1/2) * (12 * 7) = 91 in²
Since 52.9% of the area is painted yellow, hence:
Area painted yellow = 52.9% of 91 = 48.139 in²
48.139 in² of the figure area is painted yellow in color.
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some number minus -15 is equal to the product of the number and 9
Answer:
x = 15/8
Step-by-step explanation:
Let x = unknown number
Given:
some number minus -15 is equal to the product of the number and 9
⇒ x - -15 = x · 9
⇒ x + 15 = 9x
⇒ 15 = 9x - x
⇒ 15 = 8x
⇒ x = 15/8
Answer:
15/8
Step-by-step explanation:
Let's assume that the number is 'n'. Provided that number 'n' minus -15 is equal to the product of the number 'n' and 9. Simply jot down the above statement in mathematical form:
[tex] \implies\:\sf{\red{n \: - \: ( - 15) \: = \: n \: \times \: 9}}[/tex]
Now, simply solve the above equation.
[tex]\implies\:\sf{n \: + \: 15 \: = \: 9n}[/tex]
Take the like terms on one sides.
[tex]\implies\:\sf{9n \: - \: n \: = \: 15}[/tex]
Do the rest calculations.
[tex]\implies\:\sf{8n \: = \: 15}[/tex]
[tex]\implies\:\sf{\red{n \: = \: \dfrac{15}{8}}}[/tex]
Hence, the required value of n is 15/8.
Sam has $50 in an account that earns 5% interest compounded annually.
To the nearest cent, how much will he have in 3 years?
Answer:
$57.50
Step-by-step explanation:
50×5/100×3
=7.5
50+7.5
=57.50
Pleaseplaeas help I will give hearts and 5 stars!
Answer: y=25x
Step-by-step explanation:
Solve for x in the equation x2-12x+36 = 90-
X = 6+3 V10
O x=6+27
12+3V22
O
X = 12+3 V10
X=
Answer:
5.4
Step-by-step explanation:
x2-12x+36 = 90
=> 2x - 12x + 36 = *90
=> 2x - 12x = 90 - 36
=> -10x = 54
=> (-10x)/-10 = (54)/-10
=> x = 5.4
please leave a real answer it would be very helpful
The polynomial that represents the length is:
h(x) = 11x + 1.
How to find the length?
We know that the area of the top surface is given by:
f(x) = 66x^2 + 17x + 1
And the width of the top surface is:
g(x) = 6x + 1.
We can assume that the length, h(x), is another polynomial of degree 1, so we can write:
h(x) = a*x + b
Now, the area is the product of the width and the length, so we have:
f(x) = g(x)*h(x)
f(x) = (6x + 1)*(ax + b)
= 6ax^2 + (6b)x + (a)x + b
= (6a)x^2 + (6b + a)x + b
Now let's compare this with f(x), correspondent coefficients must have the same value.
66x^2 + 17x + 1 = (6a)x^2 + (6b + a)x + b
Then we have:
66 = 6a
17 = 6b + a
1 = b
From the first equation we have:
66/6 = a = 11
And from the third:
b = 1
Then the length is:
h(x) = 11x + 1.
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what is 353% as a decimal??
Answer: Your answer is 3.53 as a Decimal.
Hope this helps!
Answer:
3.53
Step-by-step explanation:
If you have been wondering what is 353% in decimal form, or if you have been looking for how to change 353% to decimal, then you are definitively right here.
353%, 353 pct and 353 percent all mean 353 by the hundred. 353 percent as a decimal equals:
353% as a decimal = 3.53
353 percent as a decimal = 3.53
Complete the table using this rule : 3x-2=y
Answer:
To find the x-intercept, substitute in 0 for
y and solve for x. To find the y-intercept, substitute in 0
for x and solve for y. x-intercept(s): (2^3,0) y-intercept(s):
(0,−2)
What whole numbers lie between 39
Answer: none
Step-by-step explanation: there are no WHOLE numbers between 39
This data set represents the lengths in inches of pieces of ribbon used in a project. What is the mean of this data set? {1/4, 1 1/3, 2/3, 1/4, 1/2}
Please answer if you know it because I only have until 8pm
Giving brainliest to whoever is right and each answer gives 30 points :)
Answer:
3/5
Step-by-step explanation:
I did this on the test and I got this specific answer correct :)
The required mean of the data set is 3/5, or approximately 0.6 inches.
What is mean?The mean of the values is the ratio of the total sum of values to the number of values.
Here,
To find the mean of the data set, we need to add up all the values and divide by the total number of values.
1/4 + 1 1/3 + 2/3 + 1/4 + 1/2 = 1/4 + 4/3 + 2/3 + 1/4 + 1/2 (we convert all fractions to have a common denominator)
= 2/3 + 4/3 + 1
We need to convert these mixed numbers to improper fractions:
= 3
Now we divide by the total number of values:
= 3 ÷ 5
= 3/5
Therefore, the mean of the data set is 3/5, or approximately 0.6 inches.
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What is the expression for f(x) when we rewrite 36^x•6^x-2 as 6^f(x)
Answer:
X
Step-by-step explanation:
[tex]36 {}^{x} (6 {}^{x - 2} )[/tex]
[tex]36 {}^{x} ( \frac{6 {}^{x} }{6 {}^{2} } )[/tex]
[tex]36 {}^{x} ( {6}^{x} ) \frac{1}{6 {}^{2} } [/tex]
[tex]6 {}^{2} (6 {}^{x} )6 {}^{ - 2} [/tex]
[tex]6 {}^{x} [/tex]
F(x)=x.
Answer: f (x) = 3x-2
Step-by-step explanation:
For a certain company, the cost for producing x items is 60x+300 and the revenue for selling x items is 100x−0.5x2.
The profit that the company makes is how much it takes in (revenue) minus how much it spends (cost). In economic models, one typically assumes that a company wants to maximize its profit, or at least wants to make a profit!
Part a: Set up an expression for the profit from producing and selling x items. We assume that the company sells all of the items that it produces. (Hint: it is a quadratic polynomial.)
Part b: Find two values of x that will create a profit of $50 .
The profit function of the company is the difference between the cost and the revenue functions of the company
The expression of the profit function is [tex]- 0.5x^2 + 40x - 300[/tex]The two values of x that creates a profit of $50 are x = 10 and x = 70How to set up the profit functionThe given parameters are:
C(x) = 60x + 300 --- the cost function
R(x) = 100x - 0.5x^2 ---- the revenue function
The profit function is calculated as:
P(x) = R(x) - C(x)
So, we have:
[tex]P(x) = 100x - 0.5x^2 - 60x - 300[/tex]
Rewrite as:
[tex]P(x) = - 0.5x^2 + 100x - 60x - 300[/tex]
[tex]P(x) = - 0.5x^2 + 40x - 300[/tex]
This means that the expression of the profit function is [tex]- 0.5x^2 + 40x - 300[/tex]
The two values of x that creates a profit of $50This means that:
P(x) = 50
So, we have:
[tex]- 0.5x^2 + 40x - 300 = 50[/tex]
Subtract 50 from both sides
[tex]- 0.5x^2 + 40x - 350 = 0[/tex]
Multiply through by -2
[tex]x^2 - 80x + 700 = 0[/tex]
Expand
[tex]x^2 - 70x - 10x + 700 = 0[/tex]
Factorize
[tex]x(x - 70) - 10(x - 70) = 0[/tex]
Factor out x - 70
[tex](x - 10)(x - 70) = 0[/tex]
Solve for x
x = 10 or x = 70
Hence, the two values of x that creates a profit of $50 are x = 10 and x = 70
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Please help I will give brainliest and points, I cannot figure this out I also need the work please please please
Answer:
~Male Y/n here~ I think that your A will be 77 feet in distance and your B would be 25 feet above ground.
(Hope this helps!)
Brandon was 6.5 pounds when he was born. In the next month his weight increased by 40%. How much did he weigh at the end of the month?
Answer:
i believe the answer is 9.1
Step-by-step explanation:
6.5 x 40% or in other words .4 is 2.6.
then you add 2.6 to 6.5 and that gives you 9.1
he quad
B
3. You shoot a pool ball, and it rolls back to where it started (as shown
in the diagram). The ball bounces off each wall at the same angle at
which it hits the wall.
a. The ball hits the first wall at an angle of 53. So
MZAEF=mZBEH=53º.
What is mZAFE? Show your work.
ga
b. What is mZFEH?
c. What is mZEHG?
d. Is quadrilateral EFGH a parallelogram? Explain your reasoning,
ex and
Answer: its C
Step-by-step explanation: you measer MZAEF and mZBEH which is 53+53
Consider the polynomial equation x(x − 3)(x + 6) (x – 7) = 0. Which of the following are zeros of the
equation? Select all that apply.
-7
-6
-3
0
3
6
7
Answer:
0, 3, -6, 7
Step-by-step explanation:
x(x − 3)(x + 6) (x – 7) = 0
so x = 0
or x - 3 = 0, x = 3
or x + 6 = 0, x = -6
or x - 7 = 0, x = 7
Answer: 0, 3, -6, 7
bre
RE
What is the value of arctan (-13);
MA
OA. 60°
OB. 90°
OC -60°
OD. 0°
O E. 45°
Answer:
The answer to this question is 60degree
these numbers form an addition and subtraction fact family for 6,7,13 here the choices 7+13=20 13+7=20 13-13=0 13-0=13 and 7+0=7 6+0=6 13-0=13 13-13=0 and 7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6
Answer:
7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6bStep-by-step explanation:
this involves any number that when subtracted or added it gives each other the values of the family
Example:-7 + 6 equals 13, 13 - 6 equals 7,
so you see how they relate,please mark me brainiest
^_^
Answer:
7+6=13 6+7=13 13-6=7 13-7=6 7+6=13 13=7+6 13-6=7 7=13-6b
Step-by-step explanation:
I studied. :)
pls help me i need help and ill give a brainly or 40 points how u want it :)
Lisa works in a store that sells t-ey . shirts to tourists. The t-shirts sell for $24 each, including tax. Last week Lisa sold 32 t-shirts. How much mondid Lisa collect by selling these t-shirts?
Answer:
768$
Step-by-step explanation:
I multiplied 24$ times 32.
Which is larger, 0.8 or 71/100?
Answer:
0.8
Step-by-step explanation:
Convert 71/100 into a decimal
.71
0.8 > .71
3 x − 7 y = − 17 determine slope
is -6.41 a rational number
Answer:
It is, in fact, a rational number.
what digit number is in the hundred thousand place in 621,938
Answer:
6
Step-by-step explanation:
6 in hundred thousands place
Answer:
Six is the correct answer.
Please help me with this. Find the measurement of angle 4
Answer:
80
Step-by-step explanation:
The rule for triangles is that their angles must add up to 180. 30+50=80 and 180-80=100 so the angle next to 4 is 100. Since they are on a straight line the angle is 180 and 180-100 is 80
brainliest pls hardstuck ambitious.