Of the 14 clients at Bob's salon, 7 of them have red hair. What is the probability that a randomly selected client at Bob's salon has red hair? P(red) =
Now
\(\\ \rm\Rrightarrow P(E)=\dfrac{|E|}{|S|}\)
\(\\ \rm\Rrightarrow P(E)=\dfrac{7}{14}=1/2\)
Answer:
\(\mathsf{Probability \ of \ an \ event \ occurring = \dfrac{Number \ of \ ways \ it \ can \ occur}{Total \ number \ of \ outcomes}}\)
Given:
Total number of outcomes = total number of clients = 14Number of ways it can occur = number of clients with red hair = 7\(\implies \mathsf{Probability \ of \ red\ hair= \dfrac{7}{14}=\dfrac12=0.5}\)
Find the equation of the line that has a slope of 2 and contains the point (3, 5).
The equation of a line in slope-intercept has the following form:
y = mx + b
Where m is the slope of the line and b is the y-intercept.
By replacing 2 for m, we get:
y = 2x + b
By replacing the x and y-coordinates of the point where the line passes through (3, 5), we get:
5 = 2(3) + b
5 = 6 + b
From this equation we can solve for b to get:
5 - 6 = 6 - 6 + b
-1 = b
b = -1
Then, the equation of the line is:
y = 2x - 1
Part a: How many pieces are in the step functionpart b: how many intervals make up the step function? What are the interval valuespart c: why do we use open circles in some situations and closed in otherspart e are the pieces of this piecewise function linear or non linear?part f what is the range of this piecewise function?
a) The step function seen in the figure has 6 pieces, one for each step
b) There are 6 intervals, one for each piece. Their values are:
(0, 1]
(1, 2]
(2, 3]
(3, 4]
(4, 5]
(5, 6]
c) The open circles indicate that the endpoint is not included in the interval. The closed circles indicate the endpoint is included in the interval.
For example, in the second interval, 1 is not included (open circle) and 2 is included (closed circle).
d) This is a function because for eac value of x there iss one and only one of y. If the open circles were closed circles, then thi wouldnot be a function.
e) All the pieces are linear because their graph is a line (flat horizontal line)
f) The range of the function is the set of output values:
Range = {46, 48, 50, 32, 54, 56}
Theprofit(indollars)earnedbysellingwappletreesisrepresentedby w2 − 4w + 14. The profit (in dollars) earned by selling w pear trees is
represented by 2w + 10. Write a polynomial that represents how much more profit is earned by selling w apple trees than w pear trees.
\(w^2 - 6w + 4\) is a polynomial that represents how much more profit is earned by selling w apple trees than w pear trees.
The profit earned by selling w pear trees is 2w + 10
To find the difference in profit, we need to subtract the profit earned by selling w pear trees from the profit earned by selling w apple trees:
\((w^2 - 4w + 14) - (2w + 10)\)
Simplifying the expression:
\(w^2 - 6w + 4\)
Therefore, the polynomial that represents how much more profit is earned by selling w apple trees than w pear trees is \(w^2 - 6w + 4\).
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Solve for x. Round to the nearest tenth, if necessary.
Answer:
10.7
Step-by-step explanation:
Since this is a right triangle, we can use trig functions to calculate the hypotenuse.
We know the opposite side from the angle labeled 59 degrees.
sin 59 = opp side / hypotenuse
sin 59 = 9.2/x
x = 9.2/ sin 59
x = 10.733
Graph g(x)= 2|x-2|-3 and the parent function f(x)=|x|. Describe the transformations that occurred from f(x) to g(x). Then, describe the domain and range.
The first thing to do is to graph both equations, as follows:
It is possible to check from the equations that there is no restriction for the value of x in both equations, and from the graph, we see that for each value of x, there is always a value of Y well defined. For this reason, we are able to conclude that the domain of both equations is all the real numbers.
Now, for the range of each, we can see that the values of Y for both are restricted to real numbers higher than the minimum value. For equation g(x), the range is the real numbers higher or equal to -3, while for f(x) the range is the real numbers higher or equal to 0.
Giving brainly
Sienna's height is 5 inches less than her brother's height.
Her brother's height is unknown.
Which expression shows Sienna's height? Use x for her brother's height.
O A.
B. x+ 5
C. X-5
D. 5x
Find the value of x, 6,4, 3x, 4x+1
Answer:
If two chords intersect in a circle, then the product of the segments of one chord equals the product of the segments of the other chord.
6(3x) = 4(4x + 1)
18x = 16x + 4
2x = 4
x = 2
Please help ill mark you the brainlist The scale on a map indicates that 1 cm represents 50 km. If two cities are 400 km apart, then how far apart would the cities be on this map?
Answer:
8 cm
Step-by-step explanation:
divide 400 by 50 which is 8.
find the median of each of the following scores
x f fc
300-309 9 9
310-319 20 29
320-329 24 53
330-339 38 91
340-349 48 139
350-359 27 166
160-169 17 183
170-179 6 189
The median score, considering the frequency distribution in this problem, is given as follows:
334.5.
How to obtain the median of a data-set?The median of a data-set is the middle value of a data-set, the value of which 50% of the measures are less than and 50% of the measures are greater than. Hence, the median also represents the 50th percentile of a data-set.
The total number of observations in the data-set is given as follows:
189.
Hence the position in the cumulative frequency table of the median element is given as follows:
0.5 x (189 + 1) = 95.
Which is in the following interval:
330-339.
Hence the median is of 334.5, as it is the middle value of the interval.
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Factorise fully 18j + 30jk
Answer:
6j(5k+3)
Step-by-step explanation:
18j+30jk
Factor out 6.
6(3j+5jk)
Consider 3j+5jk. Factor out j.
j(3+5k)
Rewrite the complete factored expression.
6j(5k+3)
When full, a car's petrol tank holds k litres. After using 15 litres, the remaining petrol is enough for the car to travel 344 km. if a car travels 8km litre find the value of k
Answer:
k = 58
Step-by-step explanation:
k = 15 litres + remaining petrol
Remaining petrol:
The car travels 8 km/litre.
344 km / (8 km/litre) = 43 litre
The car uses 43 litres to travel 344 km.
k = 15 + 43
k = 58
The base of a triangle is 1 cm more than the height. If the area is 10 cm², find the base and the height.
Part 1 of 2
What is the base of the triangle?
What is the height of the triangle?
Answer:
Base of triangle = 5 cmHeight of triangle = 4 cm.Step-by-step explanation:
It's given that, The base of a triangle is 1 cm more than the height
Let's assume height of the triangle be x and base of the triangle be 1 + x
Also the area of the triangle is 10 cm².
We know that area of triangle is calculated by,
Area = 1/2 × Base × heightPutting the values we get ,
\( \frac{1}{2} (1 + x) x = 10 \\ \\ (1 + x)x = 10 \times 2 \\ \\ {x}^{2} + x = 20 \\ \\ {x}^{2} + x - 20 = 0\)
Further solving by factorisation,
\(x^2 + x-20 = 0 \\ \\ x^2 +5x-4x - 20 = 0 \\ \\ x(x+5)-4(x+5)= 0 \\ \\ (x-4) (x+5) = 0 \\ \\ (x-4) = 0 \: or \: (x+5)=0 \\ \\ { \underline{x= 4 \: or \: x = 5 }}\)
Since value can't be negative.
So, x = 4.
Hence, height of triangle x = 4 cm
base of triangle = x + 1
= 4 + 1
= 5 cm
Therefore the Base of traingle will be 5 cm and Height of the triangle will be 4 cm.
At 60 km per hour it takes archie 10 hours to travel from his house in Manila to his house in the province. If his rate will be 120 km per hour, how long will it take him to reach his house in the province from Manila
A. 5 hours
B. 8.5 hours
C. 6 hours
D. 7.5 hours
Pls i need it now
Answer:
a
Step-by-step explanation:
5 hours
Please help me really need help please please will mark brainiest it’s due today at 3:30pm please help me please
Answer:
8 Hours.
Step-by-step explanation:
Henry's savings account has an APR of 3.65%, calculates interest daily, and
pays interest at the end of the month. If during the month of November, his
balance was $300 for the first 10 days of the month, $1200 for the next 10
days of the month, and $800 for the last 10 days of the month, how much
total interest did Henry earn in November?
Two times the sum of a number and 8 is negative 48 what is the number?
Answer:
-32
Step-by-step explanation:
Let the number be x.
\(2(x+8)=-48 \\ \\ x+8=-24 \\ \\ x=-32\)
the graph of the absolute value parent function is vertically stretched by a factor of three, then shifted two units left & five units down. Write the equation of the new function in vertex form.
Answer:
y = 3 | x + 2 | - 5Step-by-step explanation:
The absolute value function is:
y = | x |Step 1. Function is vertically stretched by a factor of 3:
y = 3 * | x |Step 2. Shifted two units left:
y = 3 | x + 2 |Step 3. Shifted 5 units down:
y = 3 | x + 2 | - 5See attached
Steps are Black → Blue → Green → Red
20 Points!!! Pls help!!
Answer:
Should be x coordinate of point C, hope this helps
Step-by-step explanation:
4x+3y=7 what is the coefficients
nasa pick po yong sagot
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A baseball player throws a ball from second base to home plate. How far does the player throw the ball? Include a diagram showing how you got your answer. Decide how many decimal points of accuracy are reasonable. Explain your reasoning.
Answer:
Distance=123.28. Two decimal places is reasonable, because it gives a close approximate to the exact answer, while remaining short and easy to use.
Step-by-step explanation:
Use Pythagorean theorem.
90^2+90^2=c^2
8100+8100=16200
The square root of 16200 is 127.279220614
127.279220614~127.28
Which expression is undefined?
O A. 0:
100
O B. (9–9)
2
O c. =
O D. (-3)
Answer:
Step-by-step explanation:
8. sint=−1,cost=0,tant=Undefinedsect
Please solve the following question.
PLEASE HELP!!! Find the Least Common Multiple of these two monomials:
12a^4b^2c^5 and 40a^3b^7c^1
Answer:
The least common multiple of 12a^4b^2c^5 and 40a^3b^7c^1, is 1
Step-by-step explanation:
4tan(x)-7=0 for 0<=x<360
Answer:
x = 65.26 degrees or x = 245.26 degrees.
Step-by-step explanation:
To solve the equation 4tan(x)-7=0 for 0<=x<360, we can first isolate the tangent term by adding 7 to both sides:
4tan(x) = 7
Then, we can divide both sides by 4 to get:
tan(x) = 7/4
Now, we need to find the values of x that satisfy this equation. We can use the inverse tangent function (also known as arctan or tan^-1) to do this. Taking the inverse tangent of both sides, we get:
x = tan^-1(7/4)
Using a calculator or a table of trigonometric values, we can find the value of arctan(7/4) to be approximately 65.26 degrees (remember to use the appropriate units, either degrees or radians).
However, we need to be careful here, because the tangent function has a period of 180 degrees (or pi radians), which means that it repeats every 180 degrees. Therefore, there are actually two solutions to this equation in the given domain of 0<=x<360: one in the first quadrant (0 to 90 degrees) and one in the third quadrant (180 to 270 degrees).
To find the solution in the first quadrant, we can simply use the value we just calculated:
x = 65.26 degrees (rounded to two decimal places)
To find the solution in the third quadrant, we can add 180 degrees to the first quadrant solution:
x = 65.26 + 180 = 245.26 degrees (rounded to two decimal places)
So the solutions to the equation 4tan(x)-7=0 for 0<=x<360 are:
x = 65.26 degrees or x = 245.26 degrees.
X≠? F(x)=sin(2x/(1+sin(2x))
Step-by-step explanation:
a/b is invalid, when b = 0.
so, F(x) is invalid, if (1 + sin(2x)) = 0.
(1 + sin(2x)) can only be 0, if sin(2x) = -1
sin(angle) = -1
angle = 2x = 270° or 3pi/2
x = 135° or 3pi/4
so,
x <> 135° or 3pi/4
At the beginning pf the week , naveen had 87 trading cards. On monday he gets 9 more on tuesday he foves 16 away on wensday he us given 3 by a friend on thrusday he sells all of his cards to a collecter the coolecter pays him arate of c for every card that naveen has. If naveen earns 124.50 from the sale what is c the rate that the collecter pays for each card
Brainliest if correct
9y-18 9y-18 9y-18
9y-18 9y-18 9y-18
2x + y ≤ 2
a. change the inequality into slope-intercept form, and then change it into an equation.
b. create a table. Use the x-values indicated
c. Graph the points and draw a line.
d. Shade the solution area.
e. Check your solution. Use (0,0) as your test point and see if it satisfies the conditions of the original inequality.
The graph is attached with the answer.
What is an Inequality ?When two algebraic expressions are equated using an inequality operator , The statement formed is called In equality.
The given Inequality is 2x + y ≤ 2
in slope intercept form can be written as
y ≤ -2x +2 , here slope is -2 and intercept is 2
As an equation it will be
y = -2x +2
x y
0 , 2
1 , 0
2 -2
The graph is plotted
The area is shaded and the test for the origin is applied , and it lies in the shaded region.
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In the number 98.48, what will you multiply by to get rid of the decimal?
Based on the number, 98.48, the number you need to multiply by to get rid of the decimal is 100.
What number should you multiply by to remove the decimal?The number that you multiply a number with if you want to remove the decimal has to be a power of 10. The power of 10 used will depend on the number of figures after the decimal.
If there is a single number after the decimal point, then multiply by 10.
If there are two numbers after the decimal point, multiply by 100.
If there are three numbers after the decimal point, multiply by 1,000.
In the case of 98.48, there are two number after the decimal point so you'll multiply by 100 to get:
= 98.48 x 100
= 9,848
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