For n as 5,7,8 and 9 the relation will become function
What is a function?A relation is a function if it has only One y-value for each x-value.
The given relation is two comma eight comma six comma zero comma four comma two comma two times of n comma n.
{(2,8), (6,0), (4,2), (2n,n)}
We need to make it function for which n should not be 2,6, or 4.
When n is 1, it is not function
n is 3, it is not function
n is 5, it is function
n is 7, it is function
n is 8, it is function
n is 9, it is function
Hence for n as 5,7,8 and 9 the relation will become function
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Pls answer the qestion
Answer:
Step-by-step explanation:
Find the total surface area of this prism where
the cross-section is an isosceles triangle.
Marks
5 cm
13 cm
24 cm
10 cm
The total surface area of this prism is: 620 cm².
How to find the total surface area?First step it to find the Area of isosceles triangles:
Area of isosceles triangles = [(24 × 5) ÷ 2]
Area of isosceles triangles (120 ÷ 2)
Area of isosceles triangles = 60 cm²
Second step is to find the area of 2 triangles
Area of 2 triangles = 60 cm² × 2
Area of 2 triangles = 120 cm²
Third step is to find the Area of 2 identical rectangles
Area of 2 identical rectangles= (10 × 13 ) × 2
Area of 2 identical rectangles= 260 cm²
Fourth step is to find the bottom area of rectangle
Area of rectangle = 24 × 10
Area of rectangle = 240²
Now let find the total surface area
Total surface area =120 + 260 + 240
Total surface area = 620 cm²
Therefore the surface area is 620 cm².
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is it true that the discriminant of f(x)=2x^2-10x+8 equals -36? (algebra 2)
The discriminant of the equation f(x) = 2x^2-10x+8 [tex]\neq[/tex] 36
To find out the discriminant of f(x)=2x^2-10x+8
The formula for the discriminant is represented by b²-4ac.
This equation is in general form, which is ax² + bx + c = 0.
So, lets assume the values to be
a = 2
b = -10
c = 8
The discriminate that we need to find out in the equation below is
D = b²-4ac
[tex]D = -10^{2} - 4(2)(8)[/tex]
D = -100 - 64
D = -164 which is not a nice number
As the discriminant had a negative value of -164.
This means there are no real solutions to the equation, because the discriminant is negative.
Hence the discriminant of the equation f(x) = 2x^2-10x+8 [tex]\neq[/tex] 36
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A school is arranging a field trip to the zoo. The school spends 651.21 dollars on passes for 46 students and 3 teachers. The school also spends 396.98 dollars on lunch for just the students. How much money was spent on a pass and lunch for each student?
what is - 8/15 - 3 4/5
-4 1/3
I hope this helps
When subtracting or adding fractions make sure that the denomators are the same.
jake brought a bike that cost 65 when it was new if he eventually sold it for 20% of the original cost how much he sold it for
Answer:
$13
Step-by-step explanation:
$65 x 0.20 = 13
Answer: 20% off 65 is $52.00 so it was $13 saved
Cost of 14 apples is Rs. 120, find the cost of 20 apples
Answer:
Rs 171.40
Step-by-step explanation:
For 1 apple we have to divide 120 by 14 which is 8.57 to 2d.p.
So 20 * 8.57 = 171.4
to 2d.p. = Rs 171.40
Pls could you give me brainliest
pls:(
The slope of a roof is called its pitch. The parthenon, an ancient greek temple, has a roof with a rise of 3. 6 meters and a run of 12 meters. What is the pitch of the roof?.
The pitch of the roof is 0.3.
Pitch:
The pitch can be expressed numerically as a fraction. The pitch fraction represents a certain amount of vertical rise over the entire span.
Here it is given that the rise in the roof is 3.6m and a rum of 12m,
We have to find the pitch of the roof.
As is already given in the statement that the slope of a roof is called its pitch.
By this we get the slope:
Slope = 3.6/12
= 3/10
= 0.3
Therefore we get the pitch of the roof at 0.3.
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In a scene from a television show, a van rolls down an incline and off a vertical cliff, falling into a valley below. The van starts from rest and rolls down the incline, which makes an angle of 18.0° below the horizontal, with a constant acceleration of 2.90 m/s2. After rolling down the incline a distance of 40.0 m, it reaches the edge of the cliff, which is 45.0 m above ground level.
(a) How much time (in s) does it take the van to fall from the edge of the cliff to the landing point?
(b)
At the point where the van crashes into the ground, how far is it horizontally from the edge of the cliff (in m)?
Answer:
its A
Step-by-step explanation:
A
Answer:50
Step-by-step explanation:i said so
The manager of Best Bakery finds it costs $3000 to make 500 apple pies a week or $2300 to make 325 apple pies a week.
The cheaper cost that should be chosen is $3000 to make 500 apple pies a week.
How to calculate the value?From the information, the manager of Best Bakery finds it costs $3000 to make 500 apple pies a week. The cost per pie will be:
= Total amount / Number of pie
= $3000 / 500
= $6
Also, it cost $2300 to make 325 apple pies a week. The cost per apple pie will be:
= $2300 / 325
= $7.08
Therefore, the cheaper option is $3000 to make 500 apple pies a week.
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Complete question
The manager of Best Bakery finds it costs $3000 to make 500 apple pies a week or $2300 to make 325 apple pies a week. Which is cheaper?
Sarah can text 91 words in 14 minutes. At
this rate, how many minutes would it take
her to text 65 words?
If Sarah can text 91 words in 14 minutes, then at this rate she will type 65 words in 10 minutes
Number of minutes to types 91 words = 14 minutes
Here we have to use the unitary method to solve the problem
Time taken to type 1 word = Number of minutes to types 91 words / 91
Substitute the values in the equation
= 14 / 91
= 2 / 13
Time taken to type 65 words = Time taken to type 1 word × 65
Substitute the values in the equation
= (2/13) × 65
= 10 minutes
Hence, if Sarah can text 91 words in 14 minutes, then at this rate she will type 65 words in 10 minutes
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Find x, y and z. I really need help!
Answer:
x = 74°y = 37°z = 25°Step-by-step explanation:
x° and 106° are same side interior angles, meaning they're supplementary and adds up to 180°. Therefore, you can find the value of x by:
[tex]x+106=180\\\\x=180-106=74[/tex]
x° and 2y° are corresponding angles, meaning they're equal. Therefore, you can find the value of y by:
[tex]x=2y\\\\2y=74\\\\y=\frac{74}{2} =37[/tex]
(4z + 6)° and the angle adjacent to x° are corresponding angles, meaning they're equal. Therefore, you can find the value of z by:
[tex]4z+6=180-x\\\\4z=180-74-6\\\\4z=100\\\\z=\frac{100}{4} =25[/tex]
46+(-4) pLeAsE SoLVe
Answer:
42
Step-by-step explanation:
Answer:
+ - = -
Step-by-step explanation:
46 - 4 = 42
hope this helps
K
Find the production matrix for the following input-output and demand matrices
using the open model.
A =
0.3 0.2
0.35 0.4
3
-[³]
6
D=
The production matrix is
(Round the final answer to the nearest hundredth as needed. Round all
intermediate values to four decimal places as needed.)
[tex]\displaystyle\\Answer:\ \left [ {{\boxed{2.1}} \atop {\boxed{3.45}}} \right][/tex]
Step-by-step explanation:
[tex]\displaystyle\\A=\left [ {0.3\ \ \ \ 0.2} \atop {0.35\ \ \ 0.4}} \right]\ \ \ \ \ D=\left [ {{3} \atop {6}} \right]\\\\A*D=\left [ {{c_{11}} \atop {c_{21}}} \right] \\\\c_{11}=a_{11}*b_{11}+a_{12}*b_{21}\\\\c_{11}=0.3*3+0.2*6\\\\c_{11}=0.9+1.2\\\\c_{11}=2.1\\\\c_{21}=a_{21}*b_{11}+a_{22}*b_{21}\\\\c_{21}=0,35*3+0,4*6\\\\c_{21}=1.05+2.4\\\\c_{21}=3.45\\\\Thus,\ A*D=\left [ {{2.1} \atop {3.45}} \right][/tex]
I need help asap. Given the equation 14.25y = 99.75, determine the value of y.
114.00
85.50
7.00
1421.44
Answer: Answer is 7.00
Step-by-step explanation: i did this i got right answer... please likes, 5 star have great day :)
1. the best point estimate for the population mean is the sample mean. 2. as the length of a confidence interval increases, the degree of confidence in its actually containing the population parameter being estimated (confidence level) also increases. 3. if the length of a confidence interval is very large, then the corresponding prediction is very meaningful. 4. a 90% confidence interval for a population mean implies that there is a 0.90 probability that the true population mean will be contained in the confidence interval. 5. a 90% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 90% of these intervals would contain the true parameter. 6. the point estimate of a population parameter is always at the center of the confidence interval for the parameter. 7. when repeated samples are selected from a population, the point estimate for a given parameter will always be the same value. 8. the larger the level of confidence, the shorter the confidence interval.
The solutions for all the given statements are,
1. True, 2. True, 3. False, 4. True, 5. True, 6. True, 7. False, 8. False
Given statements and their conclusions;
1. The best point estimate for the population mean is the sample mean.
→ True, since the central limit theorem states that the sample mean corresponds to the population mean.
2. The level of confidence that a confidence interval contains the population parameter being estimated increases as its length does (confidence level).
→ True, when the CI widens, our confidence grows as well since we are more certain that the true mean (or another statistic) will fall inside the range.
3. If a confidence interval is very long, it means that the corresponding prediction is highly significant.
→ False, as the length increases, the confidence interval's range similarly expands, giving the correct point estimate a wider range of possible values.
4. A 90% confidence interval for a population mean implies that there is a 0.90 probability that the true population means will be contained in the confidence interval.
→ True, a 90% CI means that we are 90% confident that the range of the confidence interval contains the true value of the mean.
5. A 90% confidence interval for a population parameter means that if a large number of confidence intervals were constructed from repeated samples, then on average, 90% of these intervals would contain the true parameter.
→ True, 90% of the values attains positive values.
6.A population parameter's point estimate is always in the middle of the parameter's confidence interval.
→ It is true that the sample statistic, such as a sample mean or sample proportion, is at the center of a confidence interval. The point estimate is what is used here. The margin of error determines the width of the confidence interval.
7. A population's point estimate for a particular parameter will always be the same when repeated samples are taken from it.
→ False.
8. The larger the level of confidence, the shorter the confidence interval.
→ False, an increase in the margin of error follows an increase in the level of confidence. A broader confidence interval is produced by a higher margin of error.
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Tarak wants to find the value of a so that the line that passes through (10, a) and (-2, -8) has a slope of value of 1/4.
Explain how Tarak can find the a.
[tex](\stackrel{x_1}{10}~,~\stackrel{y_1}{a})\qquad (\stackrel{x_2}{-2}~,~\stackrel{y_2}{8}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{8}-\stackrel{y1}{a}}}{\underset{run} {\underset{x_2}{-2}-\underset{x_1}{10}}} ~~ = ~~\stackrel{\textit{\LARGE m}}{\cfrac{1}{4}} \\\\\\ \cfrac{8-a}{-12}=\cfrac{1}{4}\implies 32-4a=-12\implies 44-4a=0 \\\\\\ 44=4a\implies \cfrac{44}{4}=a\implies \boxed{11=a}[/tex]
The triangle below will be reflected across the line x = 5, then translated to
the left 12 units to form an image. A reflection over which line would result
in the same image?
Reflecting over the y-axis and then translating to the right 10 units
Step-by-step explanation:
Reflection over the line x=5 gives you the transformation ...
(x, y) ⇒ (2·5 -x, y) = (-x +10, y)
This is precisely the same transformation you get by reflection over the y-axis:
(x, y) ⇒ (-x, y)
followed by translation to the right 10 units:
(-x, y) ⇒ (-x +10, y)
__
Reflection over x=5 is the same as reflection over y and translation right 10.
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P+3Q /Q-3P=x/y make Q the subject of the formula
[tex] \frac{p + 3q}{q - 3p} = \frac{x}{y} [/tex]
What is (5,-3) & (4,0) in slope intercept form?
The slope-intercept form of (5,-3) and (4,0) is y = -3x + 12.
The slope intercept form is simply writing an equation of a line so that the slope or steepness and y-intercept i.e. where the line crosses the vertical y-axis are immediately apparent.
The slope-intercept equation is y = mx + c, where x and y are two variables, and m is slope.
Slope m = [tex]\frac{y2-y1}{x2-x1}[/tex]
Let,
(x1, y1) = (5, -3)
(x2, y2) = (4, 0)
Slope (m) = [tex]\frac{0 - (-3) }{4 - 5}[/tex]
= [tex]\frac{3}{-1}[/tex]
= -3
By substituting x, y, and m values in the equation we can get the value of c.
Consider x = 4 , y = 0, m = -3
y = mx + c => 0 = (-3)4 + c
c = 12
Therefore, the slope-intercept form of (5,-3) and (4,0) is y = -3x + 12.
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The math dept is buying pizza for the students from either Papa Johns or
Cicis. The equation for Papa Johns can be represented as C=12p+15 which
includes a one time delivery charge. The equation for Cicis can be presented
as C=10p+12 which includes a one time delivery charge.
How much more does Papa Johns charge PER PIZZA than Cicis?
answer
Papa Johns charges 2 more per pizza plus 3 more for the delivery charge so 5 total
What is the radical form of each of the given expressions?
Drag the answer into the box to correctly match each expression.
Answer:
The answer is displayed in the attached image.
Step-by-step explanation:
To find the radical form of an expression, first determine what is in the denominator of the fractional exponent. That number will determine the order of the root you will take. The numerator will be the power of your original number
EXAMPLE:
[tex]5^{\frac{3}{4} }[/tex] = [tex]\sqrt[4]{5^3}[/tex]
quadratic function
y = 5x² + 2x + 4
have one, two or no real zeros?
Utilize the quadratic formula to
determine the answer.
[?] real zeros
As the discriminant is negative the Quadratic equation has no real zeros.
Determining Zeroes of Quadratic Equation:The formula of discriminant is used to find the number of solutions or zeros that a quadratic equation has. In algebra, the discriminant is the name that is given to the expression which is in under the square root in the quadratic formula.
The formula for discriminant is given by
Discriminant Δ = b²- 4ac
Here we have
Quadratic function, y = 5x² + 2x + 4
compare the given equation with ax²+bx+c = 0
=> a = 5, b = 2 and c = 4
Now find the discriminant of the equation
As we know
Discriminant Δ = b²- 4ac⇒ Discriminant Δ = (2)² - 4(5)(4)
= 4 - 80
= - 76
Since the discriminant of the equation is negative then the given quadratic equation has no real zeros
Therefore
As the discriminant is negative the Quadratic equation has no real zeros
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Graph XY with endpoints X(-3, 1) and Y(4, 5) and its
image after the composition.
Rotation: 180° about the origin
Translation: (x, y)→(x-1, y + 1)
Write a coordinate rule for the composition.
(x, y)→
A coordinate rule for the composition.is
(x, y) → (-x - 1, -y + 1)
The new coordinate is
X' (2, 0) Y' (-5, -4)
How to write a coordinate ruleThe transformation rule for rotation 180° about the origin is
(x, y) → (-x, -y)
the translation rule given is (x, y) → (x - 1, y + 1)
Merging the translation and the rotation
(x, y) → (-x, -y) → (-x - 1, -y + 1)
Applying the rule gives
X(-3, 1) → (- -3 - 1, -1 + 1) → (2, 0)
Y(4, 5) → (-4 - 1, -5 + 1) → (-5, -4)
The graph is attached
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HELP!!!!!!!!!!!!!!!!!!
Answer:-1/3
Step-by-step explanation: the point goes right one and down three making the slope negative
Factorize 6pq-3rs-3ps+6qr
with solutions
3 (2q - s)(p + r) is the factor form of expression 6pq-3rs-3ps+6qr.
What is Factor?A factor is a number that divides another number, leaving no remainder
The given expression is 6pq-3rs-3ps+6qr
We need to factorize the expression.
6pq-3rs-3ps+6qr
= 3 (2pq - rs - ps + 2qr)
= 3 (2pq + 2qr -ps - rs)
= 3 (2q(p + r) -s(p + r))
= 3 (2q - s)(p + r)
Hence, 3 (2q - s)(p + r) is the factor form of expression 6pq-3rs-3ps+6qr.
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someone please help asap! 50 points + brainliest. this is the only question im stuck on
(about galaxies)
Match the galaxy type to its correct description.
column A
1. ___ elliptical
2. ___ spiral
3. ___ irregular
column B
a. defined central bulge; dusty cloud around the bulge.
b. no defined shape, the central bulge, or arms.
c. defined central bulge; dusty arms extending from the bulge.
Answer:1=a, 2=b, 3=c
Step-by-step explanation:
just smart like that
HELP ASPPP PLEASE SHOW UR WORKKKK
Step-by-step explanation:
when we have an equation
y = ax + b
then "a" is the slope.
in our equation we see
1/2(6x ...) = 6/2 x ... = 3x ...
so, the slope is 3.
Please help asap algebra 1
The relative frequency for the table given will be
Can drive Can't drive Rows total
Likes to fly. 0.32. 0.38. 0.70
Don't like to fly. 0.13. 0.17. 0.30
Column total 0.45. 0.55 1.00
How to calculate the value?From the information given, it should be noted that the values will be calculated by subtracting the values that are given.
Those that likes to fly but cannot drive will be:
= 0.70 - 0.32
= 0.38
Those that do not like to fly will be:
= 0.45 - 0.32
= 0.13
The row total for do not like to fly will be:
= 1.00 - 0.70
= 0.30
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What is the slope of 6x+4y=12
Answer:
the slope (m) would be 3/2
Step-by-step explanation:
6x−4y=12
Rewrite in slope-intercept form.
y=3/2x−3
Using the slope-intercept form, the slope is 3/2
m=3/2