Answer:
Since we want to find radius and the diameter is 28 we will divide by two = ²⁸/2 which gives a radius of 14
since the radius is 14cm. we move on to the volume .
WE SUBSTITUTE
⁴/3× ²²/7× 14 equals 58.2cm²
therefore radius; 14cm
volume; 58.2cm
The table below shows the participation in the town soccer league during its first five seasons.
Town Recreational Soccer League Participation
Number of participants
88
95
100
108
115
Year
1
2
23
3
4
fo
5
Which is the equation of the trend line that can be generated by using the data from years 1 and 5?
Oy-6.75x-688.25
Oy-6.75x-1.75
O y-6.75x+81.25
Oy-6.75x+148.75
Using a calculator, the equation of the trend line that can be generated by using the data from years 1 and 5 is:
y = 6.75x + 81.25.
How to find the equation of linear regression using a calculator?To find the equation, we need to insert the points (x,y) in the calculator.
In this problem, the points, in the format (x,y), are given as follows:
(1,88), (2,95), (3,100), (4,108), (5,115).
Hence, using a calculator, the regression line is:
y = 6.75x + 81.25.
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An automobile tire has a diameter of 59m. What is the circumference of the tire
185.4m (rounded to 1dp)
Circumference of a circle is the diameter times by pi. 59×pi=185.4
Answer:
59 meters
or approximately 185.26 ( using 3.14 for pi)
or 185.3539666 meters using the pi button
Step-by-step explanation:
The circumference is given by
C = pi *d where d is the diameter
C = pi * 59 m
C = 59 pi meters
We can approximate pi by 3.14
C =185.26 meters
or by using the pi button the calculator
185.3539666 meter
Which of the following terms best describes a vertical line that the graph of a function approaches but never intersects
Answer: an asymptote is, essentially, a line that a graph approaches , but does not intersect.
Step-by-step explanation:
for example , in the following graph of y =1x y=1x the line approaches the x- axis (y=0) but never touches it
f(x) = 3x² + 5; find f(x + 3) - [f(x) + 3]
Answer: 18x+24
Step-by-step explanation:
[tex]f(x+3)=3(x+3)^2 + 5\\\\f(x+3)=3(x^2 + 6x+9)+5\\\\f(x+3)=3x^2+18x+27+5\\\\f(x+3)=3x^2 + 18x+32[/tex]
[tex]\therefore f(x+3)-[f(x)+3]=(3x^2 +18x+32)-[3x^2 +5+3]\\ \\=3x^2 +18x+32-3x^2 - 8\\\\=\boxed{18x+24}[/tex]
If function f(x) = 3x² + 5 then the value of f(x + 3) - [f(x) + 3] is 18x + 24.
Given the function f(x) = 3x² + 5.
We have to find the value of f(x + 3) - [f(x) + 3]
First we have to find the value of f(x + 3) - [f(x) + 3]
f(x + 3) = 3 (x + 3) ² + 5f(x + 3)
= 3(x ² + 6x + 9) + 5f(x + 3)
= 3x ² + 18x + 27 + 5f(x + 3)
= 3x ² + 18x + 32
Now substitute these values and find the value of f(x + 3) - [f(x) + 3].
f(x + 3) - [f(x) + 3] = (3x² + 18x + 32) - [3x ^ 2 + 5 + 3]
=3x ² + 18x + 32 - 3x ² - 8
=18x + 24
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The percentage of automobile consumers who are under 50 years of age decreased approximately linearly from 58.8% in 1980 to 50.5% in 1995. (a) Predict when the percentage will be 47% (b) Predict the percentage in 2005
Using a linear function, we have that:
The percentage will be 47% during the year 2001.
The predicted percentage in 2005 is of 44.97%.
Given that, the percentage of automobile consumers who are under 50 years of age decreased approximately linearly from 58.8% in 1980 to 50.5% in 1995.
What is a linear function?Linear functions are those whose graph is a straight line. The standard form of the linear function is f(x)=y= mx + b. A linear function has one independent variable and one dependent variable.
Where, m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
b is the y-intercept, which is the value of y when x = 0 and can also be interpreted as the initial value of the function.
The percentage in 1980 is considered as the initial amount, so b = 58.8. In 15 years, the percentage decreased from 58.8% to 50.5%, hence the slope is given by: m = (50.5 - 58.8)/15 = 0.5533.
Thus, the percentage in t years after 1980 is P(t) = 58.8 - 0.5533t.
Now, t + 1980, for which P(t) = 47.
So, P(t) = 58.8 - 0.5533t
47 = 58.8 - 0.5533t.
0.5533t = 11.8.
t = 11.8/0.5533
t = 21.3.
1980 + 21 = 2001, so the percentage will be 47% during the year 2001.
Now, 2005 is 25 years after 1980, so the percentage is P(25), given as follows: P(25) = 58.8 - 0.5533x25 = 44.97%.
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If f(x) = sin(x) and g(x) = sin(2x), then the derivative of f(x) + g(x) is
The derivative of f(x) + g(x) is cosx+2cos2x
Derivative : In mathematical calculus, the derivative is the rate of change of a function at a instant point.
Derivative of a function is denoted by dy/dx, where derivative of y is happening with respect to x.
We have to add f(x) and g(x), then differentiate the whole addition with respect to x.
Given that, f(x) = sin(x) & g(x) = sin(2x)
So, f(x) + g(x) = sin(x) + sin(2x)
Now, differentiating with respect to x we get,
(f(x)+g(x))' = d/dx(sinx) + d/dx(sin 2x)
= cosx+2cos2x
Derivative of f(x) + g(x) = cosx+2cos2x
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The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shrimp is randomly selected, what is the probability that the sample mean would be less than 40.6 dollars?
The probability that the sample mean would be less than 40.6 dollars will be 0.534.
What is a normal distribution?The Gaussian distribution is another name for it. The most significant continuous probability distribution is this one. Because the curve resembles a bell, it is also known as a bell curve.
The z-score is given as
z = (x – μ) / σ
The mean cost of a five pound bag of shrimp is 40 dollars, with a standard deviation of 7 dollars.
If a sample of 51 bags of shrimp is randomly selected.
Then the probability that the sample mean would be less than 40.6 dollars will be
z = (40.6 – 40) / 7
z = 0.0857
Then the p-value will be
P(x < 40.6) = P(z < 0.0857)
P(x < 40.6) = 0.534
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1
0/1 point
A student wants to write an expression for, "all of the elements which are not in set A but are in set B".
The way to write this expression in mathematics is A'∩B
How to solve for the expressionIn order to get the right way to write this expression we have to break it down in two parts.
First we are told that some of the elements are not in A.
This is represented as A'.
Then we are told that they are in the set B. Hence we have it written as B.
Then the expression not in set A but are in set B would be written as
A'∩B.
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Solve the equation -8 = -3 - 6 cube root x^2
a. 0.76, -0.76
b. 4.98
c. 3.87
d. 1.53, -1.53
Answer:
0.76
Step-by-step explanation:
-8+3=-6x^(2/3)
-5=-6 x^(2/3)
-5/-6=x^(2/3)
(2/3)√{5/6}=x
0.76=x
x=0.76
I need help on this I’m stuck
The correct answer is the last choice .
The parent quadratic function is f(x) = x² it's just like the image above .
if you look at the graph horizontal translation has happened two units to right , it means we have -2 inside a bracket next to x , then vertical translation has happened 4 units to up it means we have +4 outside the bracket and after x
there's also a reflection on the graph which means there's a negative before the bracket .
HOPE IT HELPS
PLEASE GIVE BRAINLIEST
What is the solution set of -xl = -10?
No solution since absolute value can't be equal to negative numbers
PLEASE GIVE BRAINLIEST
Write each of the following numerals in base 10. For base twelve, T and E represent the face values ten and eleven, respectively.
a. 421 five
b. 11101 two
c. 13Ttwelve
(a)
421₅ = 4×5² + 2×5¹ + 1×5⁰
… = 100 + 10 + 1
… = 111
(b)
11101₂ = 1×2⁴ + 1×2³ + 1×2² + 0×2¹ + 1×2⁰
… = 16 + 8 + 4 + 0 + 1
… = 29
(c)
13T₁₂ = 1×12² + 3×12¹ + 10×12⁰
… = 144 + 36 + 10
… = 190
A survey asked 20 mobile phone dealers how many mobile phones were sold during the previous week. Their answers are displayed in the Box-and-Whisker Plot and the Stem-and-Leaf Plot shown. Which graph can be used to find the mean? What is the mean of the data set?
A. Stem-and-Leaf Plot, Mean: 41.95
B. Stem-and-Leaf Plot, Mean: 42.55
C. Box-and-Whisker Plot, Mean: 43.65
D. Box-and-Whisker Plot, Mean: 38.80
Answer:
= B
Step-by-step explanation:
If f(x) = 6x² - 4 and g(x) = 2x + 2, find (f- g)(x)
Step-by-step explanation:
[tex]f(x) = 6 {x}^{2} - 4[/tex]
[tex]g(x) = 2x + 2[/tex]
[tex] \: [/tex]
[tex] = (f - g)(x)[/tex]
[tex] = f(x) - g(x)[/tex]
[tex] = 6 {x}^{2} - 4 - (2x + 2)[/tex]
[tex] = 6 {x}^{2} - 4 - 2x - 2[/tex]
[tex] = 6 {x}^{2} - 2x - 4 - 2[/tex]
[tex] = 6 {x}^{2} - 2x - 6[/tex]
[tex](f - g)(x) = 6 {x}^{2} - 2x - 6[/tex]
What is breaking probation?
Answer:
a probation violation occurs when someone who has already been sentenced for a crime breaks the terms or conditions of that probation
need help with this please
Answer:
no lo sé no lo sé
Step-by-step explanation:
solo se que nada se
Simplify 1-4 can you show how you got the answer on a sheet of paper.
Answer:
to solve fractions such as
1 1/3
first multiple the denominator with the whole no.
and then add with the numerator
here 3 * 1 + 1 /3
= 4/3
1 2/3
= 3*1 + 2 /3
5/3
There are 250 students in a school and there are 120 more boys than girls. What percentage
of the students are boys?
X+(x^2+2)+y=4
Find 2 coordinates
(X,y) (x,y)
Answer: (-2,0) and (1,0)
Step-by-step explanation:
If y=0, then:
[tex]x+x^2 + 2=4\\\\x^2 + x-2=0\\\\(x+2)(x-1)=0\\\\x=-2, 1[/tex]
So, the points (-2,0) and (1,0) lie on the curve.
The points (-2,0) and (1,0) lie on the curve.
If y=0, then:
[tex]x+(x^2+2)+0=4\\x^2+x+2=4\\[/tex]
What is the coordinate of the axis?A coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.
[tex]x^2+x-2=0[/tex]
[tex]=\left(x^2-x\right)+\left(2x-2\right)[/tex]
[tex]=x\left(x-1\right)+2\left(x-1\right)[/tex]
[tex]=\left(x-1\right)\left(x+2\right)[/tex]
[tex]x=-2,x=1[/tex]
So, the points (-2,0) and (1,0) lie on the curve.
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a single card is drawn from a standard 52-card deck calculate the probability and odds for the following event a jack or club is drawn
17/52
Step-by-step explanation: There are 13 clubs in a deck of fifty-two cards and there are four jacks in a fifty-two deck. So adding that up it's 17 out of 52 = 17/52. And you can not reduce it.
Need help with this geometric question
Answer: A
Step-by-step explanation:
[tex]V=\frac{1}{3}Bh\\\\V=\frac{1}[3}(6.3)(2.4)(3.6)=\boxed{18.144}[/tex]
What is the length ?
Answer:
AC = 2x - 13 Cm
BC = 3x + 4 Cm
AB = 36 Cm
AB = AC + BC
BC = AB - AC
= 36 - (2x - 13)
= 36 - 2x + 13
= 49 - 2x
but, BC = 3x + 4
so equating both the equation we get
3x + 4 = 49 - 2x
3x + 2x = 49 + 4
5x = 53
x = 53/5
x = 10.6
BC = 49- 10.6*2
= 49- 21.2
= 27.8 CM
Answer:
BC = 31 cm
Step-by-step explanation:
from the diagram
AC + CB = AB ( substitute values )
2x - 13 + 3x + 4 = 36
5x - 9 = 36 ( add 9 to both sides )
5x = 45 ( divide both sides by 5 )
x = 9
then
BC = 3x + 4 = 3(9) + 4 = 27 + 4 = 31 cm
The Pythagorean Theorem What is the length of BC in the right triangle below? с 12 O A. 15 B 9 A B. √63 OC. 63
Answer:
A. 15
Step-by-step explanation:
9 12 15 is a
3 4 5 right triangle
Pythagorean Theorem
9^2+12^2=c^2
81+144=c^2
225
√225=√c^2
15=c
The size of a mumps virus is
approximately 0.000 000 19 metres.
What is this value in standard form? Give
your answer in metres (m).
Answer:
[tex]1.9 \times {10}^{7} meters[/tex]
is the right answer
Write an expression in factored form for the polynomial of least possible degree graphed below.
The expression in factored form for the polynomial of least possible degree graphed will be y(x) = (x + 3)(x + 2 )(x - 1 )(x - 3 )
How to factor the polynomial?From the graph, the zeros of the polynomial of given graph are:
x = -3
x = -2
x = 1
x = 3
Equate the above equations to zero
x + 3 = 0
x + 2 = 0
x - 1 = 0
x - 3 = 0
Multiply the equations
(x + 3)(x + 2 )(x - 1 )(x - 3 ) = 0
Express as a function gives;
y = (x + 3)(x + 2 )(x - 1 )(x - 3 )
Hence, the factored form of the polynomial will be y = (x + 3)(x + 2 )(x - 1 )(x - 3 )
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The sum of the measures of two exterior angles of a triangle is 264. What is the
measure of the third exterior angle?
Answer: 96 degrees
Step-by-step explanation: Assuming that angle ℒ is the third measure, then angle ℒ is 96 degrees as all exterior angle measures of a triangle are 360 degrees.
360-264 = 96 degrees =
ℒ
Please give brainliest if helpful.
(a) 3.1563x106
(b) 5.65x10-4 convert to usual form
Answer:
[tex](a) \: 3.1563 \times {10}^{6} = 31563 \times {10}^{6} \times {10}^{ - 4} = 31563 \times {10}^{6 - 4} = 31563 \times {10}^{2} = 3156300[/tex]
__o__o__
[tex](b) \: 5.65 \times {10}^{ - 4} = 565 \times {10}^{ - 4} \times {10}^{ - 2} = 565 \times {10}^{ - 4 - 2} = 565 \times {10}^{ - 6} = 0.000565[/tex]
The sum of 9 consecutive integers is 369. The middle integer is:
A. 38
B.35
C.41
D.10
PLEASE ANSWER QUICKKKk
We have an odd number of consecutive integers, therefore the middle one is equal to the average of all of them. And since the average is equal to the sum of the numbers divided by their number, the middle integer in this problem is equal to 369 divided by 9, which is equal to 41.
Which of the following is the center and radius of the circle?
x2 + y2 + 4x – 14y + 46 = 0
Center (2, –7); r = 7
Center (–4, 14); r equals square root 46
Center (4, –14); r = 46
Center (–2, 7); r equals square root 7
The centre of the circle is (-2,7) and the radius is √7 , Option D is the right answer.
What is the standard equation of a Circle ?The standard equation of a Circle is
(x-h)² +(y-k)² = r²
where h and k is the centre of the circle , r is the radius
The given equation is
x² + y² + 4x – 14y + 46 = 0
x² +4x +4 -4 +y² -2.7y + 49-49+46 = 0
(x + 2)² + (y-7)² -4-49+46 = 0
(x + 2)² + (y-7)²= 7
Therefore the centre of the circle is (-2,7) and the radius is √7 ,
Therefore Option D is the right answer.
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A woman passed gas silently. I said "it stinks", and she said "I apologize. Excuse me". Why did she say both of those things?
That's because there's this thing called polite people
Answer:
Because she is nice unlike me
Step-by-step explanation:
give me brainiest pls
see? I am not nice :) But seriously can I get brainliest?