Answer:
29 BECUSE JUST BECUSE
Step-by-step explanation:
An item is regularly priced at $55 . It is on sale for $40 off the regular price. What is the sale price?
$15
$15 because they are asking you to do a subtraction the initial amount used to be $55then you have to substract $40 because they are saying $40 OFF
$15 because they are asking you to do a subtraction the initial amount used to be $55then you have to substract $40 because they are saying $40 OFF55 - 40= 15don't forget to add the $ sign
$15 because they are asking you to do a subtraction the initial amount used to be $55then you have to substract $40 because they are saying $40 OFF55 - 40= 15don't forget to add the $ sign !Hope I helped you
Simplify each expression x-117+120
Answer:
x + 3
Step-by-step explanation:
x - 117 + 120
= x + ( 120 - 117 )
= x + 3
Find an antiderivative F(x) with F′(x)=f(x)=5+18x2+18x5 and F(1)=0. Remember to include a "+Cn if appropriate. F(x)= 因因手 Show your work and explain, in your own words, how you arrived at your answer.
The antiderivative F(x) is 5x + 6x^3 + 3x^6 - 14.
Given: F′(x) = f(x) = 5 + 18x^2 + 18x^5 and F(1) = 0.
We need to find the antiderivative F(x). The antiderivative is the inverse operation of differentiation.
To find the antiderivative, we perform integration on the given function. F′(x) = 5 + 18x^2 + 18x^5
∴ F(x) = ∫ (5 + 18x^2 + 18x^5) dx
F(x) = ∫ 5 dx + ∫ 18x^2 dx + ∫ 18x^5 dx
Using the formula of integration, ∫ xⁿ dx = x^(n+1)/(n+1) + C
where C is the constant of integration.
F(x) = 5x + 18 ∫ x^2 dx + 18 ∫ x^5 dx
F(x) = 5x + 18 x^3/3 + 18 x^6/6 + C
F(x) = 5x + 6x^3 + 3x^6 + C
Given, F(1) = 0, we get
F(1) = 5(1) + 6(1)^3 + 3(1)^6 + C = 0
5 + 6 + 3 + C = 0 ⇒ C = -14
∴ F(x) = 5x + 6x^3 + 3x^6 - 14
Therefore, the antiderivative F(x) is 5x + 6x^3 + 3x^6 - 14.
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test the hypothesis that the mean weight of the two sheets is equal (μ1−μ2)against the alternative that it is not (and assume equal variances). find the t-stat to 3 decimal places.
To test the hypothesis that the mean weight of two sheets is equal (μ1 - μ2) against the alternative that it is not, and assuming equal variances, we can use a two-sample t-test. The t-statistic can be calculated using the following formula:
t = (x1 - x2) / (s_p * sqrt(1/n1 + 1/n2))
where:
x1 and x2 are the sample means of the two sheets,
s_p is the pooled standard deviation,
n1 and n2 are the sample sizes.
The pooled standard deviation (s_p) can be calculated using the following formula:
s_p = sqrt(((n1 - 1) * s1^2 + (n2 - 1) * s2^2) / (n1 + n2 - 2))
where:
s1 and s2 are the sample standard deviations.
To calculate the t-statistic, we need the sample means, sample standard deviations, and sample sizes.
Once you provide the specific values for these variables, I can assist you in calculating the t-statistic to 3 decimal places.
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To test the hypothesis that the mean weight of the two sheets is equal (μ1 - μ2) against the alternative that it is not, we can use a paired t-test assuming equal variances. The paired t-test is used when we have paired data or measurements on the same subjects or objects.
The t-statistic for a paired t-test is calculated as follows:
t = (X1 - X2) / (s / √n)
where X1 and X2 are the sample means of the two samples, s is the pooled standard deviation, and n is the number of pairs.
Please provide the sample means, standard deviation, and sample size for each sheet so that we can calculate the t-statistic to 3 decimal places.
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Is 48, 40, 52,42, 40 and mode, range, mean, median?
Answer:
42 is the median
a) 5(3z-2)=-16-3(2z+5)
b) 5(2 –3k) + (3k –2) = -4
Determine if the Sequence is Arithmetic. 1,3,9,27,81,...
A) Arithmetic
B) Not Arithmetic
Answer:
Arithmetic
Step-by-step explanation:
Each number is multiplied by three
Answer:
No, this isn't an Arithmetic Sequence
Step-by-step explanation:
An Arithmetic Sequence should have a constant. There are several differences in the Sequence, but no constant difference.
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celinesaydawi
Determine the equation of the circle with radius \sqrt{120} and center (-5,-2)
Answer:
(x + 5)² + (y + 2)² = 120
Step-by-step explanation:
You need two pieces of information to write the equation of a circle, the center and the radius. This was given in the question so you can just use the following fill-in-the-blank formula to write the equation.
If the center is (h, k) and the radius is r, fill them in here:
(x - h)² + (y - k)² = r²
For your question the center is (-5, -2) and r is√120.
You do need to already know that "minus-a-negative" IS the same as "plus-a-positive" (that's why the final answer has + inside the parentheses) ALSO, you need to know that square and squareroot un-do each other. So if you square sqrt120, you just get "plain" 120. That is, (sqrt120)² is 120.
Fill in the center and radius:
(x - h)² + (y - k)² = r²
(x - -5)² + (y - -2)² = (√120)²
Simplify.
(x + 5)² + (y + 2)² = 120
Taaa-daaa! that's it! Don't you think more people would hate formulas less if they were sold as "fill-in-the-blank" and "shortcuts" !?! I think so!
A small startup company wishes to know how many hours, per week, that its employees spend commuting to and from work. The number of hours for each employee are shown below. Construct a frequency table for grouped data using four classes.
1, 2, 19, 1, 13, 18, 20, 3, 17, 10, 3, 12, 15, 2, 15, 8, 5, 20, 18, 19
The Frequency table for grouped data using four classes are given in the table below.
What is Frequency table?
The frequency table is to represent the data in the table form in which larger data are arranged according to their characteristics. In which frequency is the number which represents how many times the particular data occurs in it.
Here, there are 20 hours for each employee is given, we have to group into four classes.
Let us split the hours as,
0 - 5 ----this includes- 1,1,2,2,3,3,5(7 hours)
5 - 10---this includes - 8,10(2 hours)
10 - 15--this includes - 12,13,15,15(4 hours)
15 - 20-this includes - 17,18,18,19,19,20,20(7 hours)
(Note:This is exclusive classes i.e., upperlimit is not included)
Using this data the frequency table is constructed as shown below:
No. of hours Frequency
0 - 5 7
5 - 10 2
10 - 15 4
15 - 20 7
Hence, the frequency table for the given data are grouped using four classes.
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What is the answer to 0.5x(y - z) in distributive Property?
A cookie recipe for 60 cookies calls for 4 cups of flour. How much flour is needed to make 90 cookies?
Answer: 6 cups
Step-by-step explanation:
60 cookies = 4 cups
60 + 30 = 90, and half of 60 is 30. So half of 4 cups is 2 cups.
4 cups plus 2 cups is 6 cups!
Answer:
6 cups
Step-by-step explanation:
because if you / the 60 by 4 you would see that 1 cup = 15 cookies. Then add 15 till you get to 90
Please help... I'm having trouble
Answer:
47
Step-by-step explanation:
First you do the exponent
2 times 2 times 2 is 8
then multiply 8 times 5 is forty
forty plus 7 is forty seven.
Hope this helps!
Step-by-step explanation:
2 with an exponent of 3 is 8
5x8=40
40+7=47
UH HELP PRETTY PLEASE I NEED HELP!!!!!!!!!!! ME MARK CROWN
Answer:
D) q(x) = x² - 18 and w(x) = x²Step-by-step explanation:
Let the function w(x) is:
w(x) = x²The vertex of w(x) is (0, 0), the vertex of q(x) is 18 units below, so it is (0, - 18) and its equation is:
q(x) = w(x) - 18 = x² - 18Correct choice is D
12. Describe the graph of a quadratic function that has its vertex and a zero
at the same point.
The dot represents the vertex, and the x represents the point where the parabola touches the x-axis. The parabola is symmetric about the vertical line x = h and does not cross the x-axis anywhere else.
What is parabola?A parabola is a type of curve that is defined by a specific mathematical equation, namely, the quadratic equation. It is a symmetrical curve that can be described as the shape of the graph of a quadratic function.
by the question.
If (h, k) is a zero of the function, then. \(f(h) = 0\). Substituting this into the equation for f(x), we get:
\(0 = a(h - h)^2\)
\(0 = 0\)
This is a true statement, which tells us that (h, k) is indeed a zero of the function.
Now, let's consider the graph of this function. Since the coefficient a is non-zero, the parabola will be facing either upwards or downwards. If a > 0, then the parabola will be facing upwards, and if a < 0, then the parabola will be facing downwards.
Since the vertex of the parabola is at (h, k), the axis of symmetry is the vertical line x = h. Therefore, the parabola is symmetric about this line.
Finally, since (h, k) is also a zero of the function, the parabola must cross the x-axis at x = h with a single point of tangency. This means that the parabola just touches the x-axis at this point and does not cross it.
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What is the image of (3,3) after a dilation by a scale factor of 5 centered at the
origin?
Answer:
(15, 15)
Step-by-step explanation:
Dilating by a scale factor of 5 centered at the origin simply multiplies the coordinates of a point by 5 so our answer is (3 · 5, 3 · 5) = (15, 15). Hope this helps!
Easy math problems !!!!!!!
Answer:
Cant you figure that out? Ik brainly is for help but you can look that up-
Step-by-step explanation:
Answer:
chicken
Step-by-step explanation:
The tables represent the points earned in each game for a season by two football teams.
Eagles
3 24 14
27 10 13
10 21 24
17 27 7
40 37 55
Falcons
24 24 10
7 30 28
21 6 17
16 35 30
28 24 14
Which team had the best overall record for the season? Determine the best measure of center to compare, and explain your answer.
Eagles; they have a larger median value of 21 points
Falcons; they have a larger median value of 24 points
Eagles; they have a larger mean value of about 22 points
Falcons; they have a larger mean value of about 20.9 points
Falcons had a more effective overall record because of the higher median. Thus, the answer is option B.
The median is usually used for the comparison of two data sets instead of the mean, as it is not affected by outliers.
Compare the total points earned by each team.
The Eagles data set is given below:
3, 7, 10, 10, 13, 14, 17, 21, 24, 24, 27, 27, 37, 40, 55.
As the data set has an odd cardinality, the median is the middle element, therefore it is for:
21.
For the Falcons, we use the same approach and obtain a median about:
24.
Therefore, we can say that the Falcons had a more effective overall record because of the higher median and the best measure of center to compare would be mean.
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Determine whether the statement is true or false. If the statement is false, explain why. The midpoint of the segment joining (0,0) and (38,38) is 19.
The midpoint has coordinates (19,19) as per the midpoint formula.
The statement is false.
The statement is false. The midpoint of the segment joining two points is determined by taking the average of their x-coordinates and the average of their y-coordinates. In this case, the two given points are (0,0) and (38,38).
To find the x-coordinate of the midpoint, we take the average of the x-coordinates of the two points:
(x1 + x2) / 2
= (0 + 38) / 2
= 38 / 2
= 19
Therefore, the x-coordinate of the midpoint is 19, which matches the statement. However, to determine if the statement is true or false, we also need to check the y-coordinate.
To find the y-coordinate of the midpoint, we take the average of the y-coordinates of the two points:
(y1 + y2) / 2
= (0 + 38) / 2
= 38 / 2
= 19
The y-coordinate of the midpoint is also 19. Therefore, the coordinates of the midpoint are (19,19), not 19 as stated in the statement. Since the midpoint has coordinates (19,19), the statement is false.
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Question 1 (2 points)
You can prove two triangles are similar...
if they have three proportional sides
if they have two congruent angles
if they have a congruent included angle between two proportional sides
True or False
Answer:
true
Step-by-step explanation:
the answer is true hope it helps
Rewrite the following statements in symbolic form (use predicates, ∀,∃,∧,∨,→,… ) a. "if all students study hard then no student will fail the exam" b. "some numbers are less than zero, therefore not all numbers are positive" c. "all natural numbers are non-negative" d. "all integers are real numbers therefore some integers are reals" e. "if the weather is not hot and it is cloudy then you will be happy"
a. Let's break down the statement: "if all students study hard then no student will fail the exam."
- Let P(x) be "x is a student."
- Let Q(x) be "x studies hard."
- Let R(x) be "x fails the exam."
- The symbolic form of the statement is ∀x(P(x) → (Q(x) → ¬R(x))).
b. Let's break down the statement: "some numbers are less than zero, therefore not all numbers are positive."
- Let P(x) be "x is a number."
- Let Q(x) be "x is less than zero."
- Let R(x) be "x is positive."
- The symbolic form of the statement is ∃x(P(x) ∧ Q(x)) → ¬∀x(P(x) → R(x)).
Please note that the above symbolic forms are based on the provided breakdown of the statements. If there are any additional conditions or assumptions, please let me know, and I'll be happy to adjust the symbolic forms accordingly.
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5. (0,0) and (-2,-8) Slope=_ Equation=
Answer:
Step-by-step explanation:
slope = 4
6. Simplify:
√900+ √0.09+√0.000009
The simplified value of the expression √900 + √0.09 + √0.000009 is 30.303.
To simplify the given expression, let's evaluate the square roots individually and then perform the addition.
√900 = 30, since the square root of 900 is 30.
√0.09 = 0.3, as the square root of 0.09 is 0.3.
√0.000009 = 0.003, since the square root of 0.000009 is 0.003.
Now, we can add these simplified values together
√900 + √0.09 + √0.000009 = 30 + 0.3 + 0.003 = 30.303
Therefore, the simplified value of the expression √900 + √0.09 + √0.000009 is 30.303.
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Simplify:
5(x-12x²)+3 (4x+7x²)
2
OA) 39x + 17x
2
OB) -72x + 7x
OC)
2
OD) 72x + 7x
2
-39x + 17x
Answer:
- 39x² + 17x
Step-by-step explanation:
5(x - 12x²) + 3(4x + 7x² ) ← distribute both parenthesis
= 5x - 60x² + 12x + 21x² ← collect like terms
= - 39x² + 17x
Hugo has 758 yards of wood. He is going to cut the wood into pieces that are each 18 yard long.
What is the maximum number of 18 -yard pieces that Hugo can cut from the original piece of wood?
Hugo has 758 yards of wood. He is going to cut the wood into pieces that are each 18 yard long.
What is the maximum number of 18 -yard pieces that Hugo can cut from the original piece of wood?
Answer:
42
Step-by-step explanation:
758 divided by 18 is 42.1 I just rounded down to 42
Answer:
42 pieces
Step-by-step explanation:
758/18 = 42.1 repeating
42 is the maximum amount of pieces
\(\frac{2}{3} - \frac{4}{15}\)
pls help!!! show your work!!
will mark brainliest!!! :)
thank you1
Answer:
\(\frac{6}{15}\), which simplifyes to \(\frac{2}{5}\)
Step-by-step explanation:
\(\frac{2}{3}\) - \(\frac{4}{15}\)
\(\frac{10}{15}\) - \(\frac{4}{15}\)
\(\frac{6}{15}\) = \(\frac{2}{5}\)
What does the leading coefficient tell you about the graph polynomial?
The leading coefficient of a polynomial is the coefficient of the term with the highest degree. It can tell us a lot about the graph of the polynomial, it can mainly tell us whether the graph is in a downward direction or upward direction.
If the leading coefficient is positive, then the graph will start at the origin and will extend upwards, with the degree of the polynomial determining how steep the graph is. If the leading coefficient is negative, then the graph will start at the origin and extend downwards.
If the leading coefficient is 0, then the graph will be a horizontal line. The leading coefficient can also tell us about the end behavior of the graph. If the degree of the polynomial is even, then the end behavior will be a horizontal line. If the degree of the polynomial is odd, then the end behavior will be a vertical line. Knowing the leading coefficient of a polynomial gives us a basic idea of what the graph of the polynomial will look like.
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Carmen likes to ski. The ski resort where she goes to ski got 3.2 feet of snow during a 5 day period. The average daily snowfall for a given number of days is the quotient of the total amount of snow and the number of days. Estimate the average daily snowfall.
Answer:
0.64 feet or 7.68 inches of snow on average over the 5 days.
Step-by-step explanation:
3.2/5
0.64ft
7.68in.
Please help TwT math is hard
Answer:
b
Step-by-step explanation:
The graph was horizontally stretched by a factor of 2.
what is the binomial expansion of (x+1)^5
Answer: "A"
somewhat of a trick question
use pascals triangle (or binomial expansion)
0-1
1-1,1
21,2,1
3- 1,3,3,1
4- 1,4,6,4,1
5- 1,5,10,10,5,1
NOTICE THAT "A" has the 1,5,10,10,5,1 in the 5th row
Step-by-step explanation:
cual es el volumen de una pila que mide 100 cm de ancho por 110 de largo por 130 cm de alto
The volume of the pile based on the width, height, and length of the pile can be found to be 1.43 m³
How to find the volume?The volume of the pile can be found by the formula:
= Length x Width x Height
From the question, the dimensions of the pile are:
Length = 110 cm
Width = 100 cm
Height = 130 cm
The volume is:
= 110 x 100 x 130
= 1,430,000 cm³
Converted to meters gives:
= 1,430,000 / 1,000,000
= 1.43 m³
In conclusion, the volume in meters of the pile is 1.43 m³
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