we know that the spinner has an equal chance of landing on each section. Since there are a total of six sections on the spinner, we can assume that the probability of the arrow landing on any one section is 1/6 or approximately 0.1667.
Now, if the arrow is spun 72 times, we can use this probability to calculate the expected number of times the arrow will land on 4. To do this, we simply multiply the probability by the number of spins, as follows:
Expected number of times arrow lands on 4 = Probability of arrow landing on 4 x Number of spins
Expected number of times arrow lands on 4 = 0.1667 x 72
Expected number of times arrow lands on 4 = 12
So, we can expect the arrow to land on 4 approximately 12 times out of 72 spins. Of course, this is just an expected value, and the actual number of times the arrow lands on 4 may vary from this value due to random chance.
In summary, if we assume that the arrow on the spinner is equally likely to land on each section, and it is spun 72 times, we can expect the arrow to land on 4 approximately 12 times based on probability calculations.
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Can someone please help me with this
Answer:
The last figure.
Answer:
Figure 1, 3 and 6
Point symmetry is when two figures or (equal) parts of a figure lies at a same distance but in opposite direction from a certain point.
Find the area of the triangle.
Apply the area formula \(A=\frac{bh}{2}\) to get \(\frac{8\cdot 14}{2}=\boxed{56\,\text{square units}}.\)
PLEASE HELP
PLEASE SHOW HOW U CHECKED UR WORK
Answer:
x = 3
Step-by-step explanation:
2(4 + 3x) + 6 = 32 ( subtract 6 from both sides )
2(4 + 3x) = 26 ( divide both sides by 2 )
4 + 3x = 13 ( subtract 4 from both sides )
3x = 9 ( divide both sides by 3 )
x = 3
As a check
substitute x = 3 into the left side of the equation and if value obtained is equal to the right side (32) then it is a solution to the equation.
2(4 + 3(3)) + 6
= 2(4 + 9) + 6
= 2(13) + 6
= 26 + 6
= 32
left side = right side
then x = 3 is the solution to the equation
Answer:
\( \sf \: x = 3\)
Step-by-step explanation:
\( \sf \rightarrow \: 2(4 + 3x) + 6 = 32\)
Apply the distributive property
\( \sf \rightarrow8 + 6x + 6 = 32\)
Combine like terms
\( \sf \rightarrow 14 + 6x = 32\)
Rearrange variables to the left side of the equation
\( \sf \rightarrow 6x = 32 - 14\)
Calculate
\( \sf \rightarrow 6x = 18\)
Divide both sides by the coefficient of 6
\( \sf \rightarrow \frac{6x}{6} = \frac{18}{6} \)
Calculate
\( \sf \rightarrow x = \frac{18}{6} \)
\( \sf \rightarrow \: x = 3\)
3x + 2 6x - 20 Enter
Answer:
=3x+26x-20
=29x-20
Hope this helps! have a great day ahead! :D
Answer:
= 29x-20
Step-by-step explanation:
= 3x + 2 6x - 20
= 29x-20
Hope this answer helps you :)
Have a great day
Mark brainliest
Given g(x) = x2-4
Find g(-3)
Answer:
-10
Step-by-step explanation:
g(-3)=3×3 -4
=9-4
=5
Answer: 5
Step-by-step explanation:
g(x)=x²-4
g(-3)=(-3)²-4
g(-3)=9-4
g(-3)=5
Hope this helps!! :)
Please let me know if you have any question or need any further explanation
8.) Polly loves polka dots. She has one bedspread with 25 polka dots, two pillows with 5 polka dots each, 4 sets of curtains that have 20 polka dots each, and 3 rugs with 15 polka dots. How many polka dots are in Polly's room? Write an expression to represent the problem and solve.
1. Using the mathematical operations of addition and multiplication, the number of polka dots that are in Polly's room is 130.
2. An expression representing the situation and solution is x + 2y + 4z + 15.
What is an expression?An expression is a mathematical statement combining variables, constants, numbers, and values with mathematical operands.
The mathematical operands for performing mathematical operations include addition (+), subtraction (-), multiplication (x), and division (÷).
The number of polka dots on the bedspread, x = 25
The number of polka dots on two pillows, 2y = 10 (5 x 2)
The number of polka dots on 4 sets of curtains, 4z = 80 (4 x 20)
The number of polka dots on 3 rugs = 15
The total number of polka dots in Polly's room = 130
Let x = 25, y = 5, and z = 20
Expression:x + 2y + 4z + 15
x + 2y + 4z + 15
= 25 + 2(5) + 4(20) + 15
= 25 + 10 + 80 + 15
= 130
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Convert 14x + 6y = 36 to Y intercept form.
Answer:
0,6
Step-by-step explanation:
Answer: Y= -7/3x + 6
Determine whether the vectors u and v are parallel, orthogonal, or neither.
u = <10,0>, V = <0,-9>
Answer:
Orthogonal.
Step-by-step explanation:
Given:
u = <10, 0>
v = <0, -9>
In unit vector notation, the above vectors can be re-written as:
u = 10i + 0j
v = 0i - 9j
Now, note the following:
(i) two vectors, u and v, are parallel to each other if one is a scalar multiple of the other. i.e
u = kv
or
v = ku
for some nonzero value of a scalar k.
(ii) two vectors are orthogonal if their dot product gives zero. i.e
u . v = 0
Let's use the explanations above to determine whether the given vectors are parallel or orthogonal.
(a) If parallel
u = k v
10i + 0j = k (0i - 9j) ?
When k = 1, the above equation becomes
10i + 0j ≠ 0i - 9j
When k = 2,
10i + 0j ≠ 2(0i - 9j)
10i + 0j ≠ 0i - 18j
Since we cannot find any value of k for which u = kv or v = ku, then the two vectors are not parallel to each other.
(b) If Orthogonal
u.v = (10i + 0j) . (0i - 9j)
[multiply the i components together, and add the result to the multiplication of the j components]
u.v = (10i * 0i) + (0j * 9j)
u.v = (0) + (0)
u.v = 0
Since the dot product of the two vectors gave zero, then the two vectors are orthogonal.
g one survey shows that 15% of college students only work during weekdays to support themselves, 30% only work during weekends and 8% work during both weekdays and weekends. according to this survey, what percentage of college students do not work to support themselves?
According to the survey, 47% of college students do not work to support themselves.
Given that,
Percentage of college students who only work on weekdays: 15%
Percentage of college students who only work on weekends: 30%
Percentage of college students who work on both weekdays and weekends: 8%
We need to find the percentage of college students do not work to support themselves.
Finding the complement of students who work will help us determine the percentage of college students who do not work to support themselves.
Add the given percentages:
15% + 30% + 8% = 53%
Therefore, 53% of college students work to support themselves. We deduct this amount from 100% to determine the proportion of college students who do not work to support themselves:
100% - 53% = 47%
Hence, 47% of college students, according to the report, do not work to support themselves.
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the measures of the bases of a trapezoid are 35 and 71. find the measure of the midsegment.
Answer:
Step-by-step explanation:
3245
If x = –6 and y = 2, evaluate the following expressions:
i) (4y)2 – (2x) 2=
ii) 4y2 – 2x2=
Answer:
Step-by-step explanation:
(1) 80
(2) 56 i think
Please please please please help ASAP I will give the brain thing if you have a correct answer + explain :)
Answer:
11
Step-by-step explanation:
every ratio is been multiplied for eleven si if we know this we can tell that
1 times 11= 11
Answer:
11
Step-by-step explanation:
Just times the things by 11, 5 times 11 is 55, 10 times 11 is 110, and 20 times 11 is 220, so 1 times 11 is 11 so 11 is the answer.
CAN I GET BRAINLLEST NOW!!!!!!!!!!!?????????????
PLEASE
(○’ω’○)⊙_⊙-_-||囧rz◑﹏◐(?_?)(T_T)O_o::>_<::^O^-_-z(ToT)o_O
Which equation shows a proportional relationship between x and y?
A. y = 9
B. y = 3x + 1
C. y = −3x − 2
D. y = 4x
NO LINKS
B. y=3x+1
Step-by-step explanation:
#Hopeee Itttt Helppsssssss!
A proportion relationship is a direct relationship between two variables thus y = 4x will be the proportional relationship between x and y thus option (D) will be correct.
What are the ratio and proportion?The ratio is the division of the two numbers.
Proportion is the relation of a variable with another. It could be direct or inverse.
A proportional relationship is given as,
A ∝ B
Removing proportionality
A = kB
Here, k is the constant of proportionality.
As per the given in last option,
y = 4x
x = (1/4)y
Removing constant.
x ∝ y
Hence "A proportion relationship is a direct relationship between two variables thus y = 4x will be the proportional relationship between x and y".
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A sprinter on the track team ran the 100 meter dash and redcorded the time for each race. The race times (in seconds) were:
12.4 13.1 12.7 12.8 13.0 12.9 13.1 13.5
Answer:
What is the question please post the full question next time
It is a special kind of segment, ray, or line that intersects a given segment at a 90∘ 90 ∘ angle, and passes through the given segment's midpoint.
Answer:
Perpendicular bisector
Step-by-step explanation:
Given
The above statement
Required
What describes the given statement?
The term that describes the given statement is the perpendicular bisector.
This is so because:
- The perpendicular bisector passes through midpoints
- The point of intersection is at the \(90^o\)
Can someone awsner this for me honestly I’m sorry but I really need these awsner but I need the answers for these 3 to
1. 50 + 20x = 240
2. 85% so more than 75%
3. 25.9% so about 26%
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which answer???????
plss
Answer:
I am not sure myself but I think the answer is 2.3 hours per week.
4 is the radius
Find the area of the semicircle.
Answer:
25.12sq.cm
Step-by-step explanation:
Answer:
6.28
Step-by-step explanation:
Because a=pi times the radius squared divided by 2
a= 3.14 times 2 squared
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Need help with questions 1-4 pls
Answer:
1. Cos C = 5/13, 2. Sin N = 77/85 , 3. Sin F = 56/65, 4. Tan E = 40/9
Step-by-step explanation:
1. Cos C = base/ Hypotenuse
2. Sin N = perpendicular/Hypotenuse
3. Sine F = perpendicular/Hypotenuse
4. Tan E = Perpendicular/ Base
Which of the following structures does not pass through the carpal tunnel? (a) Flexor pollicis longus tendon. (b) Flexor digitorum profundus tendons. (c) Flexor carpi radialis tendon. (d) Median nerve. (e) Flexor digitorum superficialis tendons.
The structure that does not pass through the carpal tunnel is (c) Flexor carpi radialis tendon.
The carpal tunnel is a narrow passageway located on the palm side of the wrist that protects the median nerve and the flexor tendons that bend the fingers and thumb. The structures that pass through the carpal tunnel include:
- Flexor pollicis longus tendon (a)
- Flexor digitorum profundus tendons (b)
- Median nerve (d)
- Flexor digitorum superficialis tendons (e)
However, the flexor carpi radialis tendon (c) does not pass through the carpal tunnel. Instead, it passes through a separate tunnel called the carpal tunnel of the flexor carpi radialis.
Hence Option C is correct.
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help me fill this out thanks
Answer:
multiply
Step-by-step explanation:
Answer:
\(c = 4 \sqrt{3} \)
\( \\ \)
Step-by-step explanation:
\( \frac{4 \sqrt{3} }{ \sin(60) } = \frac{c}{ \sin(30) } \\ \frac{4 \sqrt{3} }{ \frac{1}{2} \sqrt{3} } = \frac{c}{ \frac{1}{2} } \\ c = \frac{4 \sqrt{3} \times \frac{1}{2} }{ \frac{1}{2} \sqrt{3} } \\ c = \frac{2 \sqrt{3} }{ \frac{1}{2} \sqrt{3} } \\ c = 4\sqrt{3} \)
Which is an exponential decay function?
f(x)=3/4(7/4)^x
fx) = 2/3(4/5)^-x
f(x) = 3/2(8/7)^-x
f(x)= 1/3(-9/2)^x
Answer:
c)3/2(8/7)^x
Step-by-step explanation:
Evaluate the functions.
1. Because 7/4 > 1 and the exponent is positive,
the function does not decay.
2.Because 4/5 < 1 and the exponent is negative,
the function does not decay.
3. Because 8/7 > 1 and the exponent is negative,
the function decays.
4. Because 9/2 > 1 and the exponent is positive,
the function does not decay.
A composite plot the functions verifies the answer.
If all the x's are exponents, then 3/2 (8/7)^-x is the only one that decays as x gets bigger. That's because the base is greater than 1 and the x is negative.
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The only expression that is a decay function is f(x) = 2/3(4/5)^-x since 4/5 is less than 1
Exponential equationsThe standard form of an exponential equation is expressed as:
y = a(b)^x
where
a is the base
x is the exponent
b is the rate (determine whether the rate is growth or decay)
If the value of b is less than 1 then it is a decay function. The only expression that is a decay function is f(x) = 2/3(4/5)^-x since 4/5 is less than 1
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if the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work (in ft-lb) is needed to stretch it 18 in. beyond its natural length? give your answer in decimal form.
The amount of work needed to stretch the spring 18 in. from its natural position is 3.75 ft-lb.
According to the Hooke's Law, the work done on the spring is:
W = 1/2. k . x²
Where:
k = spring constant
x = displacement.
Notice that the work done is directly proportional to x².
Hence,
W₁ : W₂ = x₁² : x₂²
Parameters given:
W₁ = 15 ft-lb
x₁ = 3 ft
x₂ = 18 in. = 1.5 ft
Plug the above parameters into the ratio equation:
15 : W₂ = 3² : (1.5)²
W₂ = (1.5)² . 15 / 3² = 15/4 = 3.75 ft-lb
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HELP THIS IS WORTH 100 POINTS WILL GIVE BRAINLIEST LMK
Answer:
Line l could also be called line FE
Step-by-step explanation:
Any line can be named using two points on that same line
Why does math is so harder for me. I do t understand if this will even help in the life
Answer:
it will come with time, you are too young
Step-by-step explanation:
you need minimum math for life experience, the rest, if not that interesting, might help in some circumstances but you will have someone to help if needed
Answer: Some things will.
Step-by-step explanation:
For example learning about money will help you in adulthood. But on the other hand, the Pythagorean theorem won't help you unless your an architect or study measurement.
Circle T has diameters RP and QS. The measure of ∠RTQ is 12° less than the measure of ∠RTS. What is the measure of ? a.78° b.84° c.88° d.96°
Answer: The measure of ∠RTS is 102°. The answer is (d).
Step-by-step explanation:
We know that the sum of the angles in a quadrilateral is 360°. Therefore, we have:
∠R + ∠T + ∠Q + ∠S = 360°
Since RP and QS are diameters, we have ∠R = ∠P = 90° and ∠Q = ∠S = 90°. Substituting these values, we get:
90° + ∠T + 90° + ∠S = 360°
Simplifying the equation, we get:
∠T + ∠S = 180°
Now we use the fact that the measure of ∠RTQ is 12° less than the measure of ∠RTS, which can be written as:
∠RTQ = ∠RTS - 12°
Substituting this into the equation above, we get:
∠T + ∠RTS - 12° = 180°
Simplifying, we get:
∠T + ∠RTS = 192°
We can now solve for ∠RTS by substituting ∠T + ∠S = 180° into the equation above:
∠RTS = 192° - ∠T
Substituting this into the equation for ∠RTQ above, we get:
∠RTQ = (192° - ∠T) - 12° = 180° - ∠T
Since the sum of the angles in triangle RTQ is 180°, we have:
∠RTQ + ∠T + ∠R = 180°
Substituting the values for ∠R and ∠RTQ, we get:
90° + ∠T + (180° - ∠T) = 180°
Simplifying, we get:
∠T = 90°
Substituting this value into the equation for ∠RTS above, we get:
∠RTS = 192° - ∠T = 102°
Therefore, the measure of ∠RTS is 102°. The answer is (d).
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Find the unit rate. Round to the nearest hundredth, if necessary,
$2.99 for 15 lb
The unit rate is $
Иb.
Answer:
$0.20/lb
Step-by-step explanation:
2.99/15 = 199333
.20/lb
chi-square analysis can help us to decide whether __________.
Answer:
See below
Step-by-step explanation:
The chi-squared analysis aims to check whether observed frequencies in one or more categories match up with expected frequencies. I don't see any answer choices, but hopefully this short explanation will help!
each character in a password is either a digit [0-9] or lowercase letter [a-z]. how many valid passwords are there with the given restriction(s)? length is 13.
There will be 4,738,381,338,321,616,896 possible valid passwords that can be created using 13 characters with the given restrictions.
The problem is asking for the number of valid passwords that can be created using 13 characters. Each character can either be a digit or a lowercase letter, meaning that there are 10 possible choices for each character (0-9) for digits and 26 possible choices for each character (a-z) for lowercase letters.
Since there are 13 characters in the password, we need to calculate the number of possible combinations of characters, which is found by multiplying the number of choices for each character together. Therefore, the total number of valid passwords is:
number of choices for each character ^ number of characters in the password
= (10 + 26)¹³
= 36¹³
= 4738381338321616896
Therefore, there are 4,738,381,338,321,616,896 possible valid passwords that can be created using 13 characters with the given restrictions.
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