ANSWER
The missing probability is 0.15
EXPLANATION
From the given probability distribution table.
P(1)=0.30
P(2)=0.40
P(3)=0.15
P(4)=?
For for this to represent a probability distribution function,then the sum of all the probabilities must be equal to 1.
P(1)+P(2)+P(3)+P(4)=1
This implies that,
0.30+0.40+0.15+P(4)=1
0.85+P(4)=1
P(4)=1-0.85
P(4)=0.15
Therefore the missing probability is 0.15
a circle has a radius of 2 cm. find the length s of the arc intercepted by a central angle of 1.9 radians.
Answer:
3.8 cm
Step-by-step explanation:
The arc length formula is s = r·Ф, where Ф is the central angle in radians.
Here, s = (2 cm)(1.9 rad) = 3.8 cm
The length of the arc intercepted by a central angle of 1.9 radians in a circle with a radius of 2 cm is 3.8 cm, calculated by multiplying the radius (2 cm) by the angle in radians (1.9).
Explanation:A circle has a radius of 2 cm and we need to find the length (s) of the arc intercepted by a central angle of 1.9 radians. The formula to find the arc length 's' for a circle is s = r * Θ, where 'r' is the radius and 'Θ' is the central angle in radians. We have 'r' = 2 cm and 'Θ' = 1.9 radians.
To find the arc length 's', we simply multiply the radius by the angle:
s = 2 cm * 1.9 radians = 3.8 cm.
Therefore, the length of the arc intercepted by a central angle of 1.9 radians in a circle with a radius of 2 cm is 3.8 cm.
Learn more about length of the arc here:https://brainly.com/question/32035879
#SPJ2
Find the solutions(s) to 9x^2-54x=0
Answer:
Two solutions were found :
x = 6
x = 0
Step-by-step explanation:
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "x2" was replaced by "x^2".
Step by step solution :
Step 1 :
Equation at the end of step 1 :
32x2 - 54x = 0
Step 2 :
Step 3 :
Pulling out like terms :
3.1 Pull out like factors :
9x2 - 54x = 9x • (x - 6)
Equation at the end of step 3 :
9x • (x - 6) = 0
Step 4 :
Theory - Roots of a product :
4.1 A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
In other words, we are going to solve as many equations as there are terms in the product
Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation :
4.2 Solve : 9x = 0
Divide both sides of the equation by 9:
x = 0
Solving a Single Variable Equation :
4.3 Solve : x-6 = 0
Add 6 to both sides of the equation :
x = 6
Answer:
x = 6...... x = 0
Step-by-step explanation:
a p e x.
Step-by-step explanation:
The number of beads on 500 necklaces follow normal distribution whose mean is 24 beads and standard deviation os 4 beads. How many necklaces have more than 28 beads?
Answer:
The numbers of beads on 500 handcrafted bead necklaces follow a normal distribution whose mean is 24 beads and standard deviation is 4 beads.
so....
About 24 necklaces have more than 28 beads.
About 48 necklaces have more than 28 beads.
About 80 necklaces have more than 28 beads.
About 96 necklaces have more than 28 beads
About 80 necklaces have more than 28 beads.
Step-by-step explanation:
About 80 necklaces have more than 28 beads.
Floras flowers sells 3 rose for 13.50 $. The Green Thumb sells 4 roses for 15 $. Discount Flowers sells 6 roses for 23 $. Who sells roses at the lowest price?
Green thumbs sells lowest price. If you divide the$amount by the amount of roses, you'll get
Flora's : $13.50/3= $4.50 each rose
Green: $15/4= $3.75 each rose
Discount F: $23/6= $3.83 each rose
A grocery store needed eight hundred ninety five cans of peas.If the peas came in boxes with thirty two cans in each box,how many boxes would they need to order?
Answer:
28 boxes
Step-by-step explanation:
We need to take the total number of cans needed and divide by the number of cans per box to determine the number of boxes
895 / 32 =27 with 31 left over
Making this a fraction
27 31/32 boxes
We cannot normally order part of a box
Rounding up to the next whole box
28 boxes
At a college production of A Streetcar Named Desire, 400 tickets were sold. The ticket prices were $8, $10, and $12, and the total income from ticket sales was $3700. How many tickets of each type were sold if the combined number of $8 and $10 tickets sold was 7 times the number of $12 tickets sold?
Answer:
There are 200 $8 tickets
There are 150 $10 tickets
There are 50 $12 tickets
Step-by-step explanation:
Let a = number of $8 tickets
Let b = number of $10 tickets
Let +c = number of $12 tickets
given:
(1) a+b+c = 400
(1) 8a+10b+12c = 3700
(1) a+b = 7c
--------------
This is 3 equations and 3 unknowns, so
it should be solvable
Substitute (3) into (1)
(1) 7c+c = 400
(1) 8c= 400
(1) c = 50
Plug this value into (2)
(2) 8a+10b+12*50= 3700
(2) 8a+10b+600= 3700
(2) 8a+10b= 3100
(2) 4a+5b= 1550
and
(1) a+b+c= 400
(1) a+b+50= 400
(1) a+b= 350
Multiply both sides of (1) by +4+
(1) 4a+4b= 1400
Subtract (1) from (2)
(2) 4a+5b+=+1550+
(1) -4a-4b= -1400
b= 150
and, since
(3) a+b= 7c
(3) a+150= 7*50
(3) a= 350-150
(3) a= 200
_________________
There are 200 $8 tickets
There are 150 $10 tickets
There are 50 $12 tickets
____________________________
check:
(2) 8*200+10*150+12*50= 3700
(2) 1600+1500+600= 3700
(2) 3700= 3700
Each type was sold are 200 for $8, 150 for $10, and 50 for $12 if the ticket prices were $8, $10, and $12, and the total income from ticket sales was $3700.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that:
At a college production of A Streetcar Named Desire, 400 tickets were sold. The ticket prices were $8, $10, and $12, and the total income from ticket sales was $3700.
Let x be the number of $8 tickets
Let y be the number of $10 tickets
Let z be the number of $12 tickets
From the data given in the question, we can frame three linear equation in three variables:
x + y + z = 400
8x + 10y + 12z = 3700
x + y = 7z
After solving the above equations by elimination method:
We get:
x = 200
y = 150
z = 50
Thus, each type was sold are 200 for $8, 150 for $10, and 50 for $12 if the ticket prices were $8, $10, and $12, and the total income from ticket sales was $3700.
Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ2
A department store is having a sale. Skirts are on sale for 20% off the original price, p. Which equation could be used to find s, the sale price of a skirt?
The equation to calculate the sale price of the skirt, which is 's', given an original price 'p' and a discount of 20% on the original price would be s = p - (0.2 * p). This equation essentially subtracts the discount amount (20% of 'p') from 'p' to get the sale price 's'.
Explanation:To calculating a sale price, which is a Mathematical exercise commonly carried out in financial and business scenarios. In this context, there's a 20% sale on skirts. Given that the original price of the skirt is 'p', and the discount is 20% of 'p', we can denote that as '0.2p'. If the sale price is represented as 's', the equation to calculate the sale price would be s = p - (0.2 * p). This equation essentially subtracts the discount amount (20% of the original price) from the original price to obtain the price after discount, which is the sale price.
Learn more about Price Calculation here:
https://brainly.com/question/38012507
#SPJ2
the equation s = 0.80 * p. This accounts for a 20% reduction from the original price.
We need to determine the sale price using the original price (p) and the discount rate (20%).
Since the discount is 20% off, you can convert this percentage to a decimal
20% = 0.20.
To find the amount discounted, multiply the original price by 0.20,
Discount Amount = 0.20 * p.
Subtract the discount amount from the original price to get the sale price,
Sale Price (s) = p - 0.20 * p.
Alternatively, you can factor out p in the equation: s = p (1 - 0.20),
which simplifies to s = 0.80 * p.
Step by step???????????
Answer:
The measure of angle x is 12°
Step-by-step explanation:
we know that
(4x+4)°+(5x-22)°=90° ----> by complementary angles
Solve for x
(9x-18)°=90°
9x=90°+18°
9x=108°
x=12°
the angle of elevation from a point 25 feet from the base of a tree on level ground to the top of the tree is 30 degrees. which equation can be used to find the height of the tree
Answer:
the equation to find the height is: x = 25 * tan(30°) and the height is x = 14.43 feet
Step-by-step explanation:
Length of tree = 25 feet
Angle of elevation = 30 degrees
Equation for the height of tree=?
Let x represent the height.
We know that tan Ф = Perpendicular/Base
tan Ф = height of tree/ length of base
tan Ф = x/l
=> x = l*(tanФ)
x = 25 * tan(30°)
Now, putting values:
x= 25 * tan(30°)
x = 25 * 0.577
x = 14.43 feet
So, the equation to find the height is: x = 25 * tan(30°) and the height is x = 14.43 feet
which of the following expressions cannot be factored?
A. 15x-10
B. 4x+8
C. 3x+8
D. 2x-2
Answer:
C. 3x + 8
Step-by-step explanation:
A. can be factored; Factor 5 from all terms:
(15x - 10)/5 = 3x - 2
B. can be factored; Factor 4 from all terms:
(4x + 8)/4 = x + 2
D. can be factored; Factor 2 from all terms:
(2x - 2)/2 = x - 1
~
Solve for an angle in right triangles.
C is 90°fare and height
Answer:
[tex] \sin(x) = \frac{4}{6 } \\ x = arcsin( \frac{2}{3} ) \\ x = 41.81 \: degrees [/tex]
Step-by-step explanation:
Google search inverse trigonometry geometry for an explanation
answer technically should say
measure of angle A equals 41.81 degrees
there should be the letter m in front of the angle symbol.
Spencer puts an $1880 item on layaway by making 20% down payment and agreeing to pay $170 a month. How many months sooner would he pay off the item if he increased his monthly payment to $260?
Answer:
Spencer will pay off the item 3 months sooner if he pay $260 instead of $170 a month
Step-by-step explanation:
Total Amount = $1880
Down Payment = 20%
Monthly payment = $170
if Monthly payment increased from $170 to $260, How many months sonner Spencer will pay off?
So, First calculate the down payment
Down payment = 20% of 1880
= (20/100) * 1880
= 376
Amount left to be paid = 1880 - 376
= 1504
Total months to pay off for Spencer if he pay's $170 a month:
1504/170 = 8.8 ≈ 9 months
Total months to pay off for Spencer if he pay's $260 a month:
1504/260 = 5.7 ≈ 6 months
So, 9 -6 = 3 months
So, Spencer will pay off the item 3 months sooner if he pay $260 instead of $170 a month
The radius of the base of cylinder is 38mm and it’s height 51mm find the surface area of the cylinder in terms of pi
For this case we have that by definition, the surface area of a cylinder is given by:
[tex]SA = 2 \pi * r * h + 2 \pi * r ^ 2[/tex]
Where:
r: It's the radio
h: It's the height
Substituting according to the data we have:
[tex]SA = 2 \pi * (38) * (51) +2 \pi * (38) ^ 2\\SA = 2 \pi * 1938 + 2 \pi * 1444\\SA = 3876 \pi + 2888 \pi\\SA = 6764 \pi[/tex]
Thus, the surface area of the cylinder is [tex]6764 \pi \ mm ^ 2[/tex]
Answer:
[tex]6764 \pi \ mm ^ 2[/tex]
Find the exact value of tan 195 degrees
Answer:
0.267949192 8s the value of tan 195°
find the coefficient of Y^2 in the expansion of (2x+y)^3
Step-by-step explanation:
[tex]\text{Use}\ (a+b)^3=a^3+3a^2b+3ab^2+b^3.\\\\\text{We have}\ (2x+y)^3\\\\=(2x)^3+3(2x)^2(y)+3(2x)(y^2)+y^3\\\\\text{The coefficient of}\ y^2\ \text{is}\ (3)(2)=6[/tex]
Jackie bought a new 7.1 cubic foot chest freezer. The owners manual states that the temperature inside the freezer needs to be below 32°F before any perishable food can be stored. The ambient temperature is 78°F. If the freezer's temperature is modeled by the linear equation y = -
59
3
x + 78, how long will it be before Jackie can put steaks in her freezer?
Answer:
B) 2 hours 20 minutes
Answer:B 2HRS 20MINS
Step-by-step explanation:
Solve 3(x-2) < 18.
Please help.
The answer is:
The correct option is the first option,
[tex]{x|x<8}[/tex]
Why?To solve the problem, we need to remember that the way to solve inequalities is almost the same that solving normal equations.
So, we are given the inequality, we have:
[tex]3(x-2)<18[/tex]
Now, solving we have:
[tex]3(x-2)<18\\\\(x-2)<\frac{18}{3} \\\\x-2<6\\\\x<6+2\\\\x<8[/tex]
Hence, we have that solution to the inequality is:
[tex]x<8[/tex]
So, the correct option is the first option,
[tex]{x|x<8}[/tex]
Have a nice day!
Answer:
[tex]\large\boxed{\{x\ |\ x<8\}}[/tex]
Step-by-step explanation:
[tex]3(x-2)<18\qquad\text{use the distributive porperty}\ a(b+c)=ab+ac\\\\(3)(x)+(3)(-2)<18\\\\3x-6<18\qquad\text{add 6 to both sides}\\\\3x-6+6<18+6\\\\3x<24\qquad\text{divide both sides by 3}\\\\\dfrac{3x}{3}<\dfrac{24}{3}\\\\x<8}[/tex]
A stadium has a seating capacity of 8,000. Suppose it is divided into 20 equal sections. How many seats are in each section?
Answer:
400 seats would be in each section.
Step-by-step explanation:
8,000/20 is equal to 400.
Hope this helps!
Please give brainliest :)
what is b in 12-b=12.5
Answer:
b=-.5
Step-by-step explanation:
The value of b in the equation 12 - b = 12.5 is determined by subtracting 12 from both sides and then multiplying by -1, resulting in b = -0.5.
Explanation:The student is asking to solve for b in the equation 12 - b = 12.5. To find the value of b, you need to isolate the variable on one side of the equation. This is done by subtracting 12 from both sides, resulting in -b = 12.5 - 12, which simplifies to -b = 0.5. To get b by itself and not -b, you multiply both sides of the equation by -1, giving b = -0.5.
Learn more about Solving Equations here:https://brainly.com/question/17595716
#SPJ2
i need help asap ! 6th grade math surface area .
Answer:
136 un²
Step-by-step explanation:
Rectangles/linear faces: 7 * (5 + 6 + 5) = 7 * 16 = 112
Triangles/bases: 2 * 1/2(6 * 4) = 24
Total: 24 + 112 = 136 un²
The surface area-to-volume ratio is used in Biology to predict cell efficiency in eliminating wastes or procuring nutrients by diffusion.
Explanation:In Biology, the surface area-to-volume ratio is used to predict which cells might eliminate waste or procure nutrients faster by diffusion. This ratio is calculated by dividing the surface area of a cell by its volume. Cells with a larger surface area-to-volume ratio are more efficient at exchanging materials with their surroundings.
For example, consider a small cell with a high surface area-to-volume ratio. This cell has a relatively larger surface area compared to its volume, which allows for faster diffusion of nutrients into the cell and waste products out of the cell. In contrast, a larger cell with a lower surface area-to-volume ratio has a relatively smaller surface area compared to its volume, resulting in slower diffusion.
By analyzing the surface area-to-volume ratio, we can predict which cells have a greater capacity for diffusion and therefore can eliminate wastes or procure nutrients at a faster rate.
Learn more about Surface area-to-volume ratio here:https://brainly.com/question/29449175
#SPJ2
What is the value of z in this equation?:[tex]6z+10z=96[/tex]
Answer:
z = 6
Step-by-step explanation:
Given
6z + 10z = 96 ← collect terms on left side
16z = 96 ( divide both sides by 16 )
z = 6
Find the measure of CD.
Round to the nearest tenth.
Please Help Me I Need It.
you need to find the median angle so you take the triangle (A) and solve for the angle using the inverse of sin.(B) take this angle and multiply it by 2 and you should have you arc length I think.
Answer:
89.0
Step-by-step explanation:
In the diagram a || b, if m∠6 = 21°, what is m∠4?
A) 21°
B) 10.5°
C) 159°
D) 339°
Answer:D
Step-by-step explanation:
In corresponding angles formed by parallel lines intersected by a transversal line, the angles are equal. So, if the measure of angle 6 is 21°, the measure of corresponding angle 4 will also be 21°.
Explanation:The subject of this question is geometry, specifically dealing with parallel lines and the angles formed when a line intersects them. In the given diagram, we are told that lines a and b are parallel (represented as a || b). Therefore, we can use the properties of parallel lines to find the measure of angle 4. When a line intersects two parallel lines, it forms corresponding angles which are equal. Since we know the measure of angle 6, which is 21°, and angle 4 and 6 are corresponding angles, therefore the measure of angle 4 is also 21°. So, the answer is A) 21°.
Learn more about Corresponding Angles here:https://brainly.com/question/12521848
#SPJ2
I need help please and thank you . I am try to pass this.
Answer:
11 ≤ n
Explanation:
[tex] \frac{66}{6} = 11[/tex]
More than indicates the minimum value, so you use the greater than or equal to.
The above answer is written in reverse, which the exact same result.
I am joyous to assist you anytime.
How do I solve this question? It says determine the next 3 terms in each arithmetic sequence. -24, -14, -4,6
Answer:
16, 26, 36Step-by-step explanation:
[tex]a_1=-24\\a_2=-24+10=-14\\a_3=-14+10=-4\\a_4=-4+10=6\\\\\text{Add the common difference d = 10 to the previous term.}\\\\a_5=a_4+10\to a_5=6+10=16\\a_6=a_5+10\to a_6=16+10=26\\a_7=a_6+10\to a_7=26+10=36\\\vdots[/tex]
Please help I’m really slow.
A Medical company tested a new drug on 100 people for possible side effects. This table shows the results...
Compare the probability that an adult has side effects with the probability that a child has side effects. Draw a conclusion based on your results.
Answer:
p(side effects|child) = 0.44
p(side effects|adult) = 0.14
Conclusion: children have a much greater chance of having side effects than adults.
Step-by-step explanation:
i just did it on apex. good luck!
Answer:
p(side effects/child) = 0.44
p(side effects/adult) = 0.14
Conclusion: Children have a much greater chance of having side effects than adults
~apex
Write an equation to solve each problem and then solve it. The sum of three consecutive integers is 54. Find the integers. if the smallest integer is x, what will the equation be?
Answer:
It is 17,18 and 19
Step-by-step explanation:
Consecutive numbers are
x, x+1, x+2
x+x+1+x+2=54
3x+3=54
-3 -3
3x=51
x=17
17
17+1=18
17+2=19
17, 18 and 19
Divide 21a^3-14a by -7
A.-3a^3+2a
B.-3a^3-2a
C.-3a^2+2
D.3a^3+2a
Answer:
The correct answer is A:-3a^3+2a
For this case we must find the quotient of [tex]21a^3-14a[/tex] between -7:
That is to say:
[tex]\frac {21a ^ 3-14a} {- 7} =\\\frac {21a ^ 3} {- 7} + \frac {-14a} {- 7}[/tex]
We know that:
[tex]\frac {21} {7} = 3\\\frac {14} {7} = 2\\\frac {+} {-} = -[/tex]
Finally:
[tex]-3a ^ 3 + (2a) =\\-3a ^ 3 + 2a[/tex]
Answer:
[tex]-3a ^ 3 + 2a[/tex]
Option A
PLEASE HELP BRAINIEST ANSWER IS WORTH 20 POINTS
The table below shows data for a class's mid-term and final exams:
Mid-Term Final
100 98
100 95
100 93
95 91
95 88
92 82
92 78
88 78
85 65
75 60
Which data set has the largest IQR?
A.Mid- term exams
B.Final exams
C.They have the same IQR
D.There is not enough information
Answer:
B. Final Exams.
Step-by-step explanation:
The IQR is the difference between the lower and upper quartiles of the data and is a measure of the spread of the data.
Mid Term Exam:
First find the Median
This is (95+92)/2 = 93.5.
The Lower quartile is the median of the bottom 5 values = 88.
The upper quartile is the median of the top 5 values = 100
So the IQR = 100 - 88 = 12.
Final Exam.
We find the IQR of the Final exam data in a similar way:
It comes to 93 - 78 = 15.