Part a
describe the process you could use to find the probability that jake will earn at least 30 points on a throw, given that he hits the target? note: assume that it is equally likely that he will hit any region in the target.
Answers
The probability that Jake will earn at least 30 points on a throw is 0.335
How to describe the process?The attached image represents the missing part of the question.
From the attached image, we can see that:
For Jake to earn at least point, he must hit the three circles (starting from the inner circle)
The radius of the yellow circle is:
Radius = 3
While the width of the other circles is:
Width = 4
The total area of the sections that give a point of at least 30 is:
A₁ = π * (3 + 4 + 4)² = 121π
The total area of all the sections is:
A₂ = π * (3 + 4 + 4 + 4 + 4)² = 361π
The probability of getting at least 30 points is:
P(At least 30) = 121π/361π
Evaluate
P(At least 30) = 0.335
Hence, the probability that Jake will earn at least 30 points on a throw is 0.335
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Related Questions
The following table shows how the average constituency changes for two regional governing boards, joshua and salinas, when a new representative is added to each board.
joshua's
average
constituency salinas's
average
constituency
joshua receives
new board
member 1232 1520
salinas receives
new board
member 1448 1333
(a) determine the relative unfairness of an apportionment that gives a new board member to joshua rather than to salinas. round to the nearest thousandth.
(b) determine the relative unfairness of an apportionment that gives a new board member to salinas rather than to joshua. round to the nearest thousandth.
(c) using the apportionment principle, determine which regional governing board should receive the new board member.
joshua
salinas
Answers
The relative unfairness of an apportionment that gives a new board member to joshua rather than to salinas will be
How to calculate the values?The relative unfairness of an apportionment that gives a new board member to joshua rather than to salinas will be:
= (1520 - 1232)/1232
= 288/1232
= 0.234
The relative unfairness of an apportionment that gives a new board member to salinas rather than to Joshua will be:
= (1448 - 1333)/1333
= 115/1333
= 0.086
The regional governing board that should receive the new board member is Salinas.
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make r the subject of the formula in V= ⅓π r²h
Answers
Answer:
switch the position
1/3πr²h=v
multiply all through by 3
3•1/3πr²h=3•v
3 will cancel out 3
πr²h=3v
divide both sides by πh
r²=3v/πh
root both sides
r=±√3v/πh
50% if £80 pls helppp
Answers
Answer:
50%×€80
50/100×80
€40
Step-by-step explanation:
please mark me as brainlest
Answer:
£40
Step-by-step explanation:
▪︎ Method I:
£80 - 100%
£x - 50%
x = (£80 * 50%) / 100% = £40
▪︎ Method II:
50% is one half
Therefore, 50% of £80 is £80 / 2 = £40
1. Triangle STU is shown on the coordinate plane below. Triangle STU is transformed using the rule (x, y) -> (x+4, y-2). In the image of the transformation, triangle S'T'U', what is the x-coordinate of S'?
Answers
Using translation concepts, considering S(2,-1), the x-coordinate of S' is given by 6.
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
In this problem, the rule is given by:
(x, y) -> (x+4, y-2).
Considering S(2,-1), 4 is added to the x-coordinate in the translation, hence:
2 + 4 = 6.
The x-coordinate of S' is given by 6.
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Teri was 10 km race she has completed 74% of the way race when the winner crosses to finish there are approximately 2.48 miles in 4 km how many more miles does Terry need to run when the winner crosses the finish line answer to the nearest 10th
Answers
The distance Terry needs to run when the winner crosses the finish line is 1. 6 miles.
How to find the distance Terry needs to run?
The race was a 10 km race and she has completed 74% of the race when the winner crosses the finish line.
Therefore, the number of more miles Terry need to cover can be calculated as follows:
74 / 100 × 10 = 740 / 100 = 7.4 km
He has covered 7.4 km.
The distance remaining to cover = 10 km - 7.4 km = 2.6 km
Therefore,
4km = 2.48 miles
2.6 km = ?
cross multiply
The distance remaining to cover(miles) = 2.6 × 2.48 / 4
The distance remaining to cover(miles) = 6.448 / 4
The distance remaining to cover(miles) = 1.612
The distance remaining to cover(miles) = 1.6 miles
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Mr Ellis invests £800 into an account that pays 3.4% compound interest per year how much will be in the account after two years
Answers
The amount after 2 years will be 855.3248
What is Interest?Interest, in its most simple form, is calculated as a percent of the principal.
Given:
P= £800 , r= 3.4%, t= 2 year
For, compounded annually
=800*(0.034+1)²
=800* 1.034*1.034
=800* 1.069156
=855.3248
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What is the height??
Answers
[tex]\bold{\huge{\underline{ Solution }}}[/tex]
Here, we have given
One isosceles triangle that means the given triangle having two sides equal. The dimensions of the triangle are 21cm, 21 cm and 16 cm.Consider the given triangle as ABC . In ΔABC, AD acts as a median. It means Angle ADB = 90°
Therefore,
By using Pythagoras theorem,
It states that the sum of the squares of base and perpendicular height is equal to the square of the hypotenuse.That is,
[tex]\bold{ ( Hypotenuse) ^{2} = (Perpendicular) ^{2} + (base) ^{2}}[/tex]
Subsitute the required values
[tex]\sf{ AC^{2} = AB^{2} + BC^{2}}[/tex]
[tex]\sf{ (21)^{2} = (h) ^{2} + (16)^{2}}[/tex]
[tex]\sf{ 441 = (h)^{2} + 256}[/tex]
[tex]\sf{ (h)^{2} = 441 - 256}[/tex]
[tex]\sf{ h^{2} = 185}[/tex]
[tex]\sf{ h = \sqrt{185}}[/tex]
[tex]\bold{ h = 13.6 \: cm}[/tex]
Hence, The required height of the given isosceles triangle is 13.6 cm.
[ Note :- you can also solve this problem by using Heron's Formula but it's too lengthy to solve that's why I have used simple method ]
According to the box-and-whisker plot shown above, what are the following:
6. The median?
7. The first quartile?
8. The third quartile?
9. The minimum value?
10. The maximum value?
I need help i put the plot i need help 6 threw 10
Answers
Answer:
6. 80
7. 60
8. 100
9. 40
10. 110
Step-by-step explanation:
A box and whisker plot is a visual representation of the 5-number summary of a data set. The features of the plot are, left-to-right, the minimum, first quartile, median, third quartile, maximum.
You are being asked to identify the numerical value associated with each of these features.
__
The left whisker extends to the minimum of 40.
The left end of the box identifies the first quartile as 60.
The line in the middle of the box is the median, 80.
The right end of the box identifies the third quartile as 100.
The right whisker extends to the maximum of 110.
__
Additional comment
We hope you can rearrange the order of these numbers to suit the order in which the questions ask for them.
13) Circle O is shown with point A, B, C, and D on Circle O.
If x = 50, what is the value of y and the angle measurement of angle AOB?
y = _____
m
(25) (50) (100) (not enough information)
Answers
The value of y is 50
The angle measurement of angle AOB is 100°
Circle Geometry
From the question, we are to determine the value of y and the measure of angle AOB
From one the circle theorems, we have that
Angles in the same segment are equal
In the given diagram, x° and y° are angles in the same segment
∴ x° = y°
From the given information,
x = 50
∴ y = 50
Hence, the value of y is 50
Also, from another circle theorem,
Angle at the center is twice the angle at the circumference
∴ ∠AOB = 2x° = 2y°
Then,
∠AOB = 2×50°
∠AOB = 100°
Hence, the angle measurement of angle AOB is 100°
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help i need it quick!!
Answers
Answer:
47°
Step-by-step explanation:
45+88= 133
180-133=47
Select ALL the correct answers. Observe the expression below and select the true statement(s). The "6" in the third term is a coefficient. The "7" in the third term is a coefficient. The "9" in the second term is a constant. The "y" in the third term is a factor. The "4" In the first term is a constant. The "x" in the first term is an exponent. 4r + 9 = y(6x + 7)
Answers
An expression is defined as a set of numbers, variables, and mathematical operations. The statements that are true are 1, 3, and 5.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
For the given expression 4x + 9 - y(6x + 7), the following things are can be written,
4 and 6 are coefficients.9 and 7 are constants.x and y are variables.Thus, the statements that are true are:
The 6 in the third term is a coefficient.The 9 in the second term is a constant.The y in the third term is a factor.Hence, the statements that are true are 1, 3, and 5.
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Use the hundredth grids to model the question.
Two 10 by 10 grids are shown. In the first grid, 8 columns and 9 squares are shaded brown and 1 column and 1 square are shaded blue. The second grid is entirely shaded blue.
Which is the sum of 0.89 and 1.11?
A.
1.00
B.
1.89
C.
1.90
D.
2.00
Answers
The sum of 0.89 and 1.11 will be 2. Then the correct option is D.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Two 10 by 10 grids are shown.
In the first grid, 8 columns and 9 squares are shaded brown and 1 column and 1 square is shaded blue.
The second grid is entirely shaded blue
Then the sum of 0.89 and 1.11 will be
⇒ 0.89 + 1.11
⇒ 2.00
Then the correct option is D.
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a negative number raised to an odd power is ____ negative ?
Answers
Answer:
always negative?
Step-by-step explanation:
-2^3=-8
Answer:
It is negative
Step-by-step explanation:
since you are multiplying the negative no. by itself an odd no. of times, your answer will be negative, b/c a negative no. multiplied an odd no. of times will be negative, and if it is multiplied an even no. of times it will be positive.
Through aregular hexagonal prism whose base edge is 8cm whose height 12 cm ahole in the shape of aright prism with its end being arhombus with diagonals 6cm and 8cm is drilled find total surface area of remaining solid and the volume
Answers
Answer:
96 cm2, 48 cm2
Step-by-step explanation:
Basically you times the first two questions and then the other 2, that leads you with the answer
four students are trying to determine what number must replace the question (x^2)^7=x^4*x^8 in order to make it true
Joe said the answer is 6. Sam said it is impossible to answer.
Peter said the answer is 32. Alex said the answer is 16.
Who is correct? Explain why.
Answers
Let's solve ourselves instead of believing anyone
[tex]\\ \rm\Rrightarrow (x^2)^7=x^4x^8[/tex]
a^m+a^n=a^m+n[tex]\\ \rm\Rrightarrow x^{14}=x^{4+8}[/tex]
[tex]\\ \rm\Rrightarrow x^{14}=x^{12}[/tex]
[tex]\\ \rm\Rrightarrow x^{14}-x^{12}=0[/tex]
[tex]\\ \rm\Rrightarrow x^{12}(x^2-1)=0[/tex]
[tex]\\ \rm\Rrightarrow x^2-1=0[/tex]
[tex]\\ \rm\Rrightarrow x^2=1[/tex]
[tex]\\ \rm\Rrightarrow x=\pm 1[/tex]
0 is also a solutionAnswer:
Joe is correct
Step-by-step explanation:
Given equation:
[tex](x^2)^?=x^4 \cdot x^8[/tex]
The exponent outside the bracket is a question mark and the students are trying to determine the value of the question mark.
For ease of answering, let y be the unknown number (question mark):
[tex]\implies (x^2)^y=x^4 \cdot x^8[/tex]
First, simplify the equation by applying exponent rules to either side of the equation:
[tex]\textsf{Apply exponent rule} \quad (a^b)^c=a^{bc}\quad\textsf{to the left side}:[/tex]
[tex]\implies (x^2)^y=x^4 \cdot x^8[/tex]
[tex]\implies x^{2y}=x^4 \cdot x^8[/tex]
[tex]\textsf{Apply exponent rule} \quad a^b \cdot a^c=a^{b+c} \quad \textsf{to the right side}:[/tex]
[tex]\implies x^{2y}=x^4 \cdot x^8[/tex]
[tex]\implies x^{2y}=x^{4+8}[/tex]
[tex]\implies x^{2y}=x^{12}[/tex]
Now, apply the exponent rule:
[tex]x^{f(x)}=x^{g(x)} \implies f(x)=g(x)[/tex]
Therefore,
[tex]x^{2y}=x^{12}\implies 2y=12[/tex]
Finally, solve for y:
[tex]\implies 2y=12[/tex]
[tex]\implies 2y \div 2 = 12 \div 2[/tex]
[tex]\implies y=6[/tex]
Therefore, Joe is correct as the unknown number is 6.
Sid has a water dispenser in his refrigerator as shown in the figure.
PLS HELP!
A prism has a length of 4 inches, height of 14 inches, and width of 8 inches.
Sid would like to have three water dispensers in his refrigerator. How much cubic space will all three dispensers take up in Sid’s refrigerator?
448 in.3
896 in.3
1,200 in.3
1,344 in.3
Answers
Answer:
c. I'm sorry if I'm wrong
Step-by-step explanation:
Write the equation for g(x)
Answers
The equation of the function, g(x) from the task content is; g(x) = -x/25 + 203/25.
What is the equation of the function g(x)?From observation of the function, f(x), it follows that the slope of f(x) is 25. Hence, it follows that the slope of g(x) is; -1/25 since both functions are perpendicular to each other.
Therefore, the equation for g(x) is;
-1/25 = (y-8)/(x-3)
25y -200 = -x +3
Hence, y = -x/25 + 203/25.
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A parabola opens upward. The parabola goes through the point (3, -1), and the vertex is at (2, -2). write the equation of the parabola
Answers
The value of a is 1/4 and the equation of the parabola is (x-2)² = (y+2)
What is a Parabola ?A parabola is a u shaped curve. It is a plane curve whose all points are at a fixed distance form a point called focus.
(x-h)² = 4a(y-k)
It is given that the parabola goes through the point (3, -1), and the vertex is at (2, -2).
Therefore
(x -2)² = 4a(y +2)
The parabola passes through the point (3,-1)
(3-2)² = 4*a(-1+2)
1 = 4 a
a = 1/4
The equation of the parabola is
(x-2)² = (y+2)
Therefore The value of a is 1/4 and the equation of the parabola is (x-2)² = (y+2)
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what type of function is this?
Answers
Answer:
It's a sech x function
Step-by-step explanation:
Explanation is in attached file
A perpendicular bisector crosses a line segment.which type of angle does it form with the segment
Answers
Answer: A right angle
Step-by-step explanation:
Perpendicular lines form right angles
Answer:
90 degree
Step-by-step explanation:
Which measurements could create more than one triangle?
A. Angles measuring 85°, 45°, and 60°
B. Angles measuring 95°, 35°, and 50⁰
C. Sides measuring 8 cm and 15 cm and an included angle measuring 60°
D. Sides measuring 5 inches, 7 inches, and 13 inches
Answers
Answer:
A.
Step-by-step explanation:
The sum of angles of a triangle is 180. if you add 85+45+60 you get 190. That is more than 180.
^ What is the product of 3x(x²+4)? ´0x²+3x+4 O 3x³+4 O 3x³ + 12x O 3x² + 12x
Answers
Answer:
3x³ + 12x
Step-by-step explanation:
→ Multiply 3x by x²
3x³
→ Multiply 3x by 4
12x
Question 25 of 25
Over what interval is the function in this graph increasing?
AV
M
<-10
10
A. 6≤x≤ 10
B. -4≤x≤1
C. -10≤x≤-4
D. 1≤x≤6
NEED HELP ASAP
Answers
The correct option is option B : -4 ≤ x ≤ 1
What is Increasing and decreasing function?
Increasing and decreasing functions are functions whose graphs go upwards and downwards respectively as we move towards the right-hand side of the x-axis. Increasing and decreasing functions are also called non-decreasing and non-increasing functions.
Here, from graph
as we can observe from x = -4 graph starts increases upto x = 1 and after that graph becomes constant.
Thus, between x belongs -4 to 1 the graph is increasing.
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Which table represents a linear function?
X
X
y
1
1
1
2
2
1
2
3
4
34
O
122
1/7/2
O
y
1
121314
X
1
2
3
4
X
1
2
3
14
O
y
7
9
13
21
y
0
6
16
30
Answers
the third one
Step-by-step explanation:
find the approximate volume of this cone. use 3.14 for pi.
Answers
how?: 3.14 * 30^2 * 40/3 (put that in a calculator)
For the complex number z = (5sqrt(3))/4 - 5/4 * i what is the polar form
Answers
Answer: 3
Step-by-step explanation:
The required polar form of the equation is [tex]Z = 5/2cos30 - 5/2sin30i.[/tex]
For the complex number z = (5sqrt(3))/4 - 5/4 * i the polar form is to be determined.
The number that constitutes real and imaginary numbers are called complex numbers. The standard form of complex number = a + bi
[tex]z = 5\sqrt{3}/4 - 5/4i[/tex]
the polar form complex numbner can be given as
[tex]z = rcos\theta +rsin\theta i[/tex] - - - - - -(1)
where r = [tex]\sqrt{a^2+b^2}[/tex]
and [tex]\theta=tan^-\frac{b}{a}[/tex]
Since a = 5√3/4 and b = -5/4
[tex]r = \sqrt{(5\sqrt{3}/4)^2+(5/4)^2}[/tex]
r = 10/4
r = 5/2
Now,
[tex]\theta=tan^-\frac{b}{a}[/tex]
[tex]\theta=tan^-\frac{-5/4}{5\sqrt{3}/4 }\\\theta=tan^-\frac{1}{\sqrt{3} }\\\theta=tan^-(-tan30)\\\theta=-30[/tex]
Now the polar form is given by substituting the values of r and [tex]\theta[/tex] in equation 1
Here,
[tex]z = 5/2cos30 +5/2sin(-30)i\\z = 5/2cos30-5/2sin30 i[/tex]
Thus, the required polar form of the equation is [tex]Z = 5/2cos30 - 5/2sin30i.[/tex]
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Which are applications of mathematics in music? Select all that apply.
identifying measurements
calculating beats per minute
calculating the time signature
finding ratios of note frequencies
mapping marching band performances
Answers
Answer:
calculating beats per minute
answer this question asap
Answers
Answer:
the first option
Step-by-step explanation:
f(c)= 1/3p + 5/3
Find the area of the shaded region in terms of pi
Answers
Answer:
[tex]13\frac{1}{3} \pi[/tex]
Step-by-step explanation:
First, find the area of the small circle whose radius is 3cm.
[tex]A = \pi r^{2} \\A = \pi (3^{2})\\A = \pi (9)\\A = 9\pi \\[/tex]
Next, find the area of the large circle. First, you need to find the radius of the large circle by adding the 3 and 4.
Radius of large circle.
3 + 4 = 7 cm
Area of large circle:
[tex]A = \pi r^{2} \\A = \pi (7^{2})\\A = \pi (49)\\A = 49\pi \\\\[/tex]
Now subtract the area of the small circle from the large circle since the shaded area doesn't include the small circle.
[tex]49\pi -9\pi =40\pi[/tex]
Finally find the shaded area. To do this first find what degree of the circle is shade by dividing 120 by 360.
120/360 = 1/3
Now multiply the area by 1/3, or you can divide it by 3
[tex]\frac{40\pi }{3} =13\frac{1}{3} \pi[/tex]
Recently, bats have been disappearing from the wild due to a contagious fungus. To monitor the current population in a certain region, Troy collects 78 bats, marks them, and releases them. Later, Troy collects 600 bats, and finds that 39 of them are marked. To the nearest whole number, what is the best estimate for the bat population?
Answers
Answer:
1200 bats
Step-by-step explanation:
78 - 39 = 39
600 x 2 = 1200(bats).