You give tours on the Great Lakes and talk about points of interest. A lighthouse typically has 2 beacons that rotate together but not necessarily facing opposite directions. In that way, it can be a shorter time between the first and second flashes than between the second flash and the third flash
(when the first beacon comes around for the second time). One way of identifying which lighthouse you are looking at is to find the ratio of the short time between flashes to the long time between flashes. If the beacons are set 120 degrees apart along the rotation, ash shown below, what is this ratio?
The required ratio is 1:2.
What is ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.
Given that, A lighthouse typically has 2 beacons that rotate together but not necessarily facing opposite directions, it can be a shorter time between the first and second flashes than between the second flash and the third flash, One way of identifying which lighthouse you are looking at is to find the ratio of the short time between flashes to the long time between flashes. The beacons are set 120 degrees apart along the rotation
If the second beacon is 120° after the first, then the first is 360° -120° = 240° after the second.
Therefore, the ratio of the times between beacons is =
120° : 240° = 1 : 2
Hence, the ratio is 1 : 2
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What type of counting problem is this? How many different sequences of 3 playing cards (from a single 52-card deck) exist?
Combination without repetition
Permutation without repetition
Permutation with repetition
Combination with repetition
Answer:
Permutation without repetition
Step-by-step explanation:
The order of the cards matter, which makes it a permutation, but since none of the cards are exactly the same, repetition isn't allowed/possible
The problem is of the type permutation without repetition.
What is permutation and combination?
Permutation and combination are the methods used in counting how many outcomes are possible in various situations. Permutations is used in the case of arrangements and combinations is used in the case of selections.
What will use in the given scenario?In the given scenario, the order of cards is a priority therefore, permutation will use.
Also, the cards are not repeating in the scenario.
Therefore, the sequence is permutation without repetition.
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multiply the following binomials
(x+3)(x-4)
(s-2)(2s+4)
Step-by-step explanation:
x²-4x+3x-12
x²-x-12.
2s²+4s-4s-8
2s²-8
A science teacher makes two mixtures of red dye and water. Mixture A has 3 mL of red dye every 20 mL of water. Mixture B has 4mL of red dye fr every 30 mL of water. Which mixture is redder?
The decimal value of the ratio for A is greater than for B. Then mixture A is redder.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Two red dye and water combinations are created by a science teacher. For every 20 mL of water in Mixture A, 3 mL of red dye is present. For every 30 mL of water in Mixture B, 4 mL of red dye is present.
The ratio of the red dye to water for A is given as,
⇒ 3 / 20
⇒ 0.15
The ratio of the red dye to water for B is given as,
⇒ 4 / 30
⇒ 0.133
The decimal value of the ratio for A is greater than for B. Then mixture A is redder.
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pls help last test or semester half my grade pls pls pls i’ll give brainliest
Therefore , the solution of the given problem of function comes out to be satisfies the given function is x=9 and y=21.
What is function?Any input will only result in one or zero outcomes for the function. The expression does not define the function if there are several outputs for a given input. Each value of x must have only one output value of y variable in order for anything to be a function.
Here,
Given : A table of values of x and y
To find : the function is linear or not
Thus,
F(x) = y -3x =0
So,
Putting the values of x and y in given function
The value which satisfies the given function is x=9 and y=21.
Therefore , the solution of the given problem of function comes out to be
satisfies the given function is x=9 and y=21.
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!!!!!! URGENT PLS HELP ME ANSWER !!!!
Answer:
1) A = 547.1136, C = 82.896
2) A = 678.5226, C = 92.316
3) A = 844.5344, C = 102.992
4) A = 1554.49625, C = 139.73
5) A = 1561.4906, C = 140.044
6) A = 994.8776, C = 111.784
Step-by-step explanation:
1)
[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{26.4}{2})^2 = 3.14 * 13.2^2 = 547.1136[/tex]
[tex]C = \Pi D = 3.14 * 26.4 = 82.896[/tex]
2)
[tex]A = \Pi r^2 = 3.14*(14.7)^2 = 678.5226[/tex]
[tex]C = 2\Pi r = 14.7*2 * 3.14 = 92.316[/tex]
3)
[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{32.8}{2})^2 = 3.14 * 16.4^2 = 844.5344[/tex]
[tex]C = \Pi D = 3.14 * 32.8 = 102.992[/tex]
4)
[tex]A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{44.5}{2})^2 = 3.14 * 22.25^2 = 1554.49625[/tex]
[tex]C = \Pi D = 44.5*3.14 = 139.73[/tex]
5)
[tex]A = \Pi r^2 = 3.14*22.3^2 = 1561.4906[/tex]
[tex]C = 2\Pi r = 2 * 3.14 * 22.3 = 140.044[/tex]
6)
[tex]A = \Pi r^2 = 3.14 * 17.8^2 = 994.8776[/tex]
[tex]C = 2\Pi r = 2 * 3.14 * 17.8 = 111.784[/tex]
question is in photo
(3,4) m=0
Formula
Y-y=m(x-x1)
Answer:
[tex]y1 = 4 \\ x1 = 3[/tex]
[tex]y - y1 = m(x - x1)[/tex]
[tex]y - 4 = 0(x - 3)[/tex]
[tex]y - 4 = 0[/tex]
[tex]y = 4[/tex]
50 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
9.3
Step-by-step explanation:
Answer:
9.3
Step-by-step explanation:
[tex]A^{2} +B^{2} =C^{2}[/tex]
[tex]6.1^{2} +7^{2} =C^{2}[/tex]
[tex]37.21+49=C^{2}[/tex]
[tex]86.21=C^2[/tex]
[tex]9.28493403315=C[/tex]
[tex]9.3=C[/tex]
A traffic radar records the speed of cars driving through an intersection. It records these statistics:
Mean=36.2 mph
Median=28.5 mph
Mode=30.0 mph
What is the most common speed of a car driving through the intersection?
a. 31.6
b. 36.2
c. 30.0
d. 28.5
The most common speed of a car driving through the intersection is 30.0 mph which is indicated by the Mode.
What is the mode of data?A mode of data is defined as an observation with the highest frequency among the values that appear most frequently in the given data.
In the case of ungrouped data, all that is required is to find the observation that happens most frequently.
A traffic radar records the speed of cars driving through an intersection. It records these statistics:
Mean = 36.2 mph
Median = 28.5 mph
Mode = 30.0 mph
As per the question, a car driving through the intersection at 30.0 mph is the most common speed.
This is indicated by the Mode which is the value that appears most frequently in a data set.
Hence, the correct answer would be an option (C).
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I need the answer fast pls
Answer:
13 is the right answer
Step-by-step explanation:
is the right answer
u
Question 8
Find the value of the variable in the parallelogram.
(6a + 10)
130°
Answer:
20
Step-by-step explanation:
(6a + 10) = 130
(6 x 20) + 10 = 130
120 - 10 = 130
130 = 130
can someone help it’s due tomorrow
Answer:
It is A
Step-by-step explanation:
a is between 0 and 1 because in that little section in the fourth quadrant(the bottom right part of the graph) the y increases by around 12, and the x only increases by 8, which means the slope is 8/12, or 2/3. a is equal to the slope, so it is between 1 and 0. b is less then 1, because the y intercept is below the x axis, and b controls the y intercept, so b is negative, and therefore less then 1. Sorry if this is a bad explanation.
What is the slope of the line that passes through the points (-4, -6) and (1, -6)? Write your answer in simplest form
The slope of the line that passes through the points (-4, -6) and (1, -6) is zero and hence the line is parallel to the x-axis.
What is slope?The slope is the rate of change of the y-axis with respect to the x-axis.
The equation of a line in slope-intercept form is y = mx + b, where
slope = m and y-intercept = b.
We know the greater the absolute value of a slope is the more steeper is its graph or rate of change is large.
We know slope(m) = (y₂ - y₁)/(x₂ - x₁).
Therefore, The slope of the line that passes through the points (-4, -6) and (1, -6) is,
m = (- 6 + 6)/(- 4 - 1).
m = - 0/5.
m = 0.
As the slope is equal to zero the line is parallel to the x-axis.
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A researcher wishes to determine what percentage of college freshmen also work full time. To do this, the researcher obtains a list of all enrolled freshunen, manipulates the list so that females appear twice is often as males, and then selects from this list
a. Probability Sampling
b. Convenience Sampling
c. Voluntary Sampling
d. Stratified Sampling
e. None of the above
Answer:
d. Stratified Sampling
Step-by-step explanation:
Stratified Sampling is a form of sampling in which the researcher selects a population sample based on a demographic factor or strata such as race or gender. From the different strata, a random sample is then made such that each group or subpopulation is represented in the final sample.
It should be noted that retaining the percentages while selecting a randomized sample is essential to stratified sampling.
Hence, in this case, when the researcher obtains a list of all enrolled freshmen, manipulates the list so that females appear twice as often as males, and then selects from this list, this is an example of stratified sampling
20 Points HELP IN NEED!!!!!!
Each scoop radius (center to surface) is 3 cm long. What should be the capacity (volume) of the cylindrical container the shop pack the ice cream to take out?
Answer:
at least 226.2
Step-by-step explanation:
Add the 2 volumes of the scoops, one scoop is 113.1
أحتاج إلى مساعدة كيف تقدم كوزي free brainleist if you tell me!
Answer:
i need help how to progress cozy
Step-by-step explanation:
Answer:
ضع رأسك على كتفي ~ Its so cool that you speak arabic i speak a little bit
Step-by-step explanation:
Hope you have a good day and summer!
Can i have brainliest please also? i need one to level up my ranking on here
3. Solve for m. Please help
Answer:
m = 13 or greater
Step-by-step explanation:
20 - 7 = 13
13 is the minimum value for m to satisfy the inequality.
Answer:
m ≥ 13
Step-by-step explanation:
m+7 ≥ 20
Subtract 7 from both sides:
m+7-7 ≥ 20-7
m ≥ 13
The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 4.5 inches. If the length must be 1.5 times the height, what should each dimension be?
what is the cosine of π/3
For accounting purposes, the value of assets (land, buildings, equipment) in a business are depreciated at a set rate per year. The value, V(t) of $537,000 worth of assets after t years, that depreciate at 17% per year, is given by the formula V(t) = Vo(b)t. What is the value of Vo and b, and when rounded to the nearest cent, what are the assets valued at after 9 years?
a
Vo = $537,000, b = 0.17, and the value after 9 years is $0.45
b
Vo = $537,000, b = 0.83, and the value after 9 years is $100,386.92
c
Vo = $537,000, b = 1.17, and the value after 9 years is $98,291.76
d
Vo = $537,000, b = 0.83, and the value after 9 years is $91,290.00
Answer:
I think it is D
Step-by-step explanation:
8. Crayons are packed in boxes of 8 and 10 pieces. What is the smallest number of crayons
that can be packed using the boxes?
B. 48 crayons
C. 50 crayons
A. 40 crayons
D. 54 crayons
Step-by-step explanation:
48 is the answer it is correct check it
Help me out with these please!
Step-by-step explanation:
1. a) q=4+0.8(7)
q=4+5.6
q=9.6
b) q=4+0.8(100)
q=4+80
q= 84
2. a) 12=4+0.8p
-4 -4
8=0.8p
0.8 0.8
10=p
b) 60=4+0.8p
-4 -4
56=0.8p
0.8 0.8
70=p
Answer:
Q1. a) q= 9.6
b) q= 84
Q2. a) p= 10
b) p= 70
Step-by-step explanation:
Substitute the equation with the given value and solve the equation to arrive at the answer.
Q1. a) q= 4 +0.8p
When p= 7,
q= 4 +0.8(7)
q= 4 +5.6
q= 9.6
b) q= 4 +0.8p
When p= 100,
q= 4 +0.8(100)
q= 4 +80
q= 84
Q2. a) q= 4 +0.8p
When q= 12,
12= 4 +0.8p
0.8p= 12 -4 (-4 on both sides)
0.8p= 8
p= 8 ÷0.8 (÷0.8 on both sides)
p= 10
b) q= 4 +0.8p
When q= 60,
60= 4 +0.8p
0.8p= 60 -4 (-4 on both sides)
0.8p= 56
p= 56 ÷0.8 (÷0.8 on both sides)
p= 70
3 2/5 divided by 2 7/8 equals
Answer:
17/5÷23/8= 1 21/115
The answer is 1 21/115
Find the equivalent measures. Express as a decimal
(a) 250 cm =
The answer is 2.50. This, 250% in deciaml form is 2.50, in improper fraction form is 52 and as a mixed number it is 2 12. 2 1 2.
The school cafeteria offers three choices for the main course (peanut
butter and jelly sandwich, burrito, or fish sticks) and two choices for the
side dish (vegetables or potatoes) and three choices for the dessert (ice
cream, brownie, or cookies). How many different combinations can the
students order from these choices?
Answer: 18 different combinations
Step-by-step explanation: When finding out combinations, you just multiply all the numbers. In this case, it would be 3x2x3 which equals 18. Please mark brainliest <3
Question 2(Multiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
Determine the length and g the line segment shown
!!!!please help me!!!!
The measurement of the hypotenuse is obtained as 9 units using the Pythagoras theorem.
What is Pythagoras Theorem?
In a right-angled triangle, the square of the hypotenuse side is equal to the sum of the squares of the other two sides, according to Pythagoras's Theorem. These triangle's three sides are known as the Perpendicular, Base, and Hypotenuse. Due to its position opposite the 90° angle, the hypotenuse in this case is the longest side.
According to the graph -
The perpendicular measures 4 units.
The base measures 3 units.
To find the hypotenuse g apply the Pythagoras theorem -
(hypotenuse)^2=(base)^2+(perpendicular)^2
(g)^2=(3)^2+(4)^2
(g)^2=9+16
(g)^2=25
g=[tex]\sqrt{25}[/tex]
g=5
Therefore, line segment g measures 5 units.
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Select the locations on the number line to plot the points 1, 4, and −3.
The locations of the points on the number line are:
point 1: 1 step to the right of 0.
point 4: 4 steps to the right of 0.
point -3: 3 steps to the left of 0
How to select the locations on the number line to plot points?
A number lines is an horizontal straight line in which the integers are placed in equal intervals.
All positive numbers on the number line are on the right side of zero while the negative numbers are on the left side of zero.
To locate 1: starting from 0, count 1 step to the right.
To locate 4: starting from 0, count 4 steps to the right.
To locate -3: starting from 0, count 3 steps to the left.
Check the attached image to see the points.
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A lap around a track is 2/5 of a mile.
How many laps is a 1 1/2 mile race?
A. 4/15
B. 3/5
C. 1 1/10
D. 1 1/5
E. 3 3/4
2.2 laps is a 1 1/2 mile race.
What is a lap?When a driver or a runner makes one trip around the track i.e. one full circle it is called lap.
Given a lap around a track is 2/5 of a mile.
1 lap =2/5 mile
x lap = 11/2 mile
x lap =(11/2) ÷(2/5)
x lap = 11/5 or 2.2
Thus 2.2 laps is a 1 1/2 mile race.
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Which is the largest interval over which the function shown in the table is increasing?
A. X<-2
B. X<0
C. X>0
D. X>2
Step-by-step explanation:
I would suggest graphing the function, as I did, and you will find the function is an inverted parabola.
The function is increasing at points along the function that have a positive slope. Imagine a line tangent to the function where m is > zero
based on that and the graph you can see that the function is increasing with a positive slope at all points less than zero x<0 answer B