Answer:
0.705
Step-by-step explanation:
From the question :
P(not being late) = p(walking and not late) + P(cycling and not late)
P(walking and not being late) = 0.65 * (1 - 0.4) = 0.65 * 0.6 = 0.39
P(cycling and not being late ) = (1 - 0.65) * (1 - 0.1) = 0.35 * 0.9 = 0.315
Hence,
P(not being late) = 0.39 + 0.315 = 0.705
A power company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used. The function b(x) = { 0.150, s 0.10 (x – 200) + 30, x < 200 2 > 200 determines the bill. How much is the bill for a person who uses 300 kWh in a month? O A. $60 O B. $55 C. $40 D. $45
The bill for a person who uses 300 kWh in a month is $40
How to determine the bill of the person?The piecewise function of how the power company calculates the bill is given as:
b(x) = 0.150x, x < 200
b(x) = 0.10(x - 200) + 30, x >= 200
For a person who uses 300 kWh in a month, the value of x is 300.
i.e. x = 300
By comparing the domain of the piecewise function, we make use of the following function
b(x) = 0.10(x - 200) + 30, x >= 200
Remove the domain
b(x) = 0.10(x - 200) + 30
Substitute the known values in the above equation
b(300) = 0.10(300 - 200) + 30
Evaluate the difference
b(300) = 0.10(100) + 30
Evaluate the product
b(300) = 10 + 30
Evaluate the sum
b(300) = 40
Hence, the bill for a person who uses 300 kWh in a month is $40
Read more about piecewise function at
https://brainly.com/question/18859540
#SPJ1
PLEASE HELP
20 points look at picture!
Answer:
C
Step-by-step explanation:
I'm sure it's right hope this helps
PLEASE HELP find the product of the binomials f(x)
Step-by-step explanation:
f(x) = -x + 1
---------------
please help!! 20 points for answering. if you guess or comment something just to take points i will make sure your account gets banned. thank you!! :)
Which statement correctly compares the two functions?
Answer:
you forgot the picture
Step-by-step explanation:
Helpppppppppppppp meeeee plsss
Answer:
12
Step-by-step explanation:
4 years is what fraction of a century?
Anyone know this I can give you brainliest if right
Answer:
I think it's A, y = 1/2 cos(x + π/4)
What is the radius of a hemisphere with a volume of 91358 inº, to the nearest tenth
of an inch?
Answer:
Calculating for a FULL SPHERE
sphere radius = cube root (.75 * sphere volume / PI)
sphere radius = cube root (.75 * 91,358 / 3.14159265)
sphere radius = 27.9395447176 inches
That's for a FULL SPHERE.
For a HEMISPHERE we divide by two:
13.9697723588
To the nearest tenth of an inch it is
14.0 inches.
Step-by-step explanation:
An engineer is standing 250 meters away from a building. She measures the angle of elevation to the top of the building to be 30 degrees. How tall is the building, rounded to the nearest meter?
Answer:
144m
Step-by-step explanation:
we would used tan 30 to determine the height of the building
tan 30 = opposite / adjacent
0.5774 x 250 = 144m
What is the equation for -2 = m divided by 16
Answer:
-2 = [tex]\frac{m}{16}[/tex] or [tex]\frac{m}{16}[/tex] = -2
Step-by-step explanation:
A 36 oz container of Sour Punch Juice costs $6.84. A 48 oz container of the same juice costs $10.08. Which is the better buy?
Answer:
the 10$ one
Step-by-step explanation:
I don’t know if this is right
Answer:
Step-by-step explanation:
Sure it is
Answer:
You are right it is not a triangle
a rectangular garden has a length which is 14 feet longer than 4 times its width. its area is 60 find length and width. Pls help
Answer:
56
Step-by-step explanation:
plssss help on this ;((((((((((
Answer:
3/4
Step-by-step explanation:
i always hated ixl
Answer:
12/36
Step-by-step explanation:
I think you have to ccount from twelve to 32 and how ever many numbers are in between that is the denominator and the count from 24 to 32 and how ever many numbers are in between that is your numerator I may be wrong double check just to be sure
Which property of multiplication is shown?
Answer:
associative or distributive pick one ill tell you if your correct
Jack designed a bridge that will be 0.2 miles long, and 3/5 of the bridge has been built. How long is the section of the bridge that is finished? Show how you know.
Answer:
0.12
because 3/5 of 0.2 is 0.12
u probably shouldn’t trust me im dum
Step-by-step explanation:
PLEASE HELP ASAP!
A set of Triangles are Shown. Select All The Obtuse Triangles.
Answer:
that is b,d,e :)
Step-by-step explanation:
hopefully I'm correct
The straight line L passes through the points (0, 12) and (10, 4).
Find an equation for L.
Answer:
You need to add an image so we can see the line.
Step-by-step explanation:
What is the area of the figure?
Answer:
B
Step-by-step explanation:
2 5/6 * 3 2/3 Please explain how to work it out and dont bot my question-
Answer:
400/9 or 44 4/9
Step-by-step explanation:
( 25/ 6 )( 32 /3 )
=
(25)(32)
(6)(3)
=
800 /18
=
400/9
im bad at geometry please help
Answer:
D
Step-by-step explanation:
Find the measurement indicated in the parallelogram.
Answer:
m∠D=110°
Step-by-step explanation:
∠D+∠C=180°
∠D+70=180°
∠D=180-70
∠D=110°
[tex]----------[/tex]
hope it helps...
have a great day!!
From a point on the ground one-halt mile from the base of a historic monument, the angle of elevation to its top is 11.87°. To the nearest foot, what is the
height of the monument?
Answer: 555
Step-by-step explanation:
Solve
x + y = 100 x -y = 10
Pair of Equation
lets take
x+y=100 firstly.
then x=100-y equation (i)
Now,
x-y=10
Putting value of x from equation(i)
100-y-y=10
-2y=10-100
-2y=-90
therefore, y=45
Now,
putting value of y in equation(i)
we get
x=100-45
ie x=55
hence, x=55 & y=45
Answer:
The solution is (55, 45).
Step-by-step explanation:
Solve the system of linear equations
x + y = 100
x - y = 10
through elimination by addition / subtraction.
Combining these two equations temporarily eliminates y, leaving us with 2x = 110. Then x = 55.
Substituting 55 for x in the first equation, we get:
55 + y = 100. Subtracting 55 from both sides leaves us with y = 45.
The solution is (55, 45).
∠B=angle, B, equals
^\circ
∘
degrees
Round your answer to the nearest hundredth.
Step-by-step explanation:
[tex] \cos( < B) = \frac{5}{9} \\ < B = \cos {}^{ - 1} ( \frac{5}{9} ) \\ < B = 56.25 \degree[/tex]
Answer: haha
Step-by-step explanation:
The value of n is a distance of 3 units from 1 1/2 on a number line. Click on the number line to show the possible values of n.
Answer:
either 3 or zero if a unit is 0.5
but if a unit is 1, then it might be 4.5 and -1.5
last one like actually last one then I can submit<3
Answer:
100 because they are both vertical from each other
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
4 angel = 100
6 angle =100
5 angle= 80
I need help for bi dont get it
Answer:
EWWWWWWWWWWWWW UR BI???!!
Step-by-step explanation:
6 An account pays
4% compound interest per year.
Eric invests £1500 into the account for 2 years.
How much interest will he earn?
Ad
Answer: £122.4
Step-by-step explanation:
Given
The rate of interest is 4%
The principal invested is £1500
the time period is 2 years
Compound interest is given by
[tex]C.I.=P(1+r\%)^t-P[/tex]
put values
[tex]C.I.=1500(1+0.04)^2-1500\\C.I.=1500[1.04^2-1]\\C.I.=1500[1.0816-1]\\C.I.=1500\times 0.0816\\C.I.=122.4[/tex]
Therefore, interest earned is £122.4