Answer:The total probability that a random person has an accident in the given year is
.8×.01+.2×.04=0.016
The portion of that which is explained by careful drivers is .8×.01=.08. Thus the answer is
.8×.01.8×.01+.2×.04=.5
Thus it is equally likely that your accident victim was careful or careless.
Speaking informally, that's because, while it's four times more likely that a randomly selected driver is careful, it is one fourth as likely that a careful driver will have an accident, and the two
Step-by-step explanation:
I have to record myself answering questions for my math class and I really need help. I will reward 36 points.
How can you tell if 2 functions are inverses of each other?
Answer:
If the two graphs are symmetric with respect to the line y = x (mirror images over y = x ), then they are inverse functions. But, we need a way to check without the graphs, because we won't always know what the graphs look like! then f(x) and g(x) are inverse functions.
Step-by-step explanation: Hope this helps :)
The theater sells two types of tickets: adult tickets for $15 and
child tickets for $11.
Last night, the theater sold a total of 147 tickets for a total of
$1889. How many adult tickets did the theater sell last night?
Answer:
68
Step-by-step explanation:
Let x=adult tickets and y=child tickets
1) 15x+11y=1889
2) x+y=147
multiply equation 1 by -1/11 on both sides to get:
-(15/11)x-y=-171.73
add new equation with equation 2 to get
-4/11x=-24.73
Isolate x to get:
x=67.99999
Round up to get 68 adult tickets
Using the image below, find the number of squares in the next figure
Answer:
30 squares would be next in sequence
Step-by-step explanation:
each block of squares are adding as many as it takes to make an L around the previous square
Which pair of equations represent PARALLEL lines? A) y=2x and y = -1/2x B) y=2x and y = -1/2 C) y=2 and y=-2 D)y=2x=-2
Answer:
None
Step-by-step explanation:
Step 1: Write all the equations in the form y=mx+c, where m represents the gradient.
Notably, the equations are in that form already.
Step 2: Compare which equation have same value of m
In our case, none, hence no parallel lines
resolver:
-[(5-8)+12] ÷ 9:
Answer:
The answer is -1
Step-by-step explanation:
-[(5-8)+12] ÷ 9
-[-3+12] ÷ 9
[3-12] ÷ 9 {becoz (- × + = -) (- × - = +)}
-9 ÷ 9
-1
Hope this may help you to solve these problems ☺
Identify the regular tessellation.
HELP NEEDED NOW! THE RED IS THE ONE I GOT WRONG!
Answer:
the answer is c
Step-by-step explanation:
l
Find HE
A) 21
B) 20
C) 12
D) 24
Answer:
20
Step-by-step explanation:
GF = 3
HF = 9
GE = 14
HG = 9 - 3 = 6
6 + 14 = 20
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Solve for x:−2(x+9)=−1(x+−1)+2
Answer:
A
Step-by-step explanation:
expanding the bracket, we would have
-2x -18 = -x+1+2
-2x+x= 3 +18
-x=21
x=-21
Answer:
A
Step-by-step explanation:
−2(x+9)=−1(x+−1)+2
Use distributive property
-2x - 18 = -1x + 1 +2
-2x - 18 = -1x + 3
+18 +18
-2x = -1x +21
+1x +1x
___________
-x = 21
we need to have a positive x so multiply x by -1. -x times -1 = x
What we do on the left side has to happen to the right side too
So, 21 times -1 = -21
Therefore, x = -21
Hope this helps :)
Helppppppppppppppppppp I’ll mark you brainlist don’t respond if you’re going to put something random I will report you :)
Answer:
2n + 2
Step-by-step explanation:
The formula for nth term of an arithmetic progression is [tex]an = d*n+a1-d[/tex]
In this example we have d = 2 (difference, +2 each time) and a1 =4 (first term of sequence).
[tex]an=d*n+a1-d\\an=2n+4-2\\an=2n+2[/tex]
A population of rabbits has a mean life span of 10 years with a standard deviation of 2.6 days. If a sample of 30 rabbits is taken from this population, what is the probability the sample will have a sample mean life span of less than 9 years rounded to the nearest tenth of a percent? (Do not type in the percent symbol)
Factoring: 3x^5+6x^3
Answer:
Step-by-step explanation:
3x^5+6x^3
=3x^3(x^2+2)
Answer:
[tex]3x^{2} (x^{2} +2)[/tex]
Step-by-step explanation:
Factor [tex]3x^{3}[/tex] out of [tex]3x^{5}[/tex] [tex]+[/tex] [tex]6x^{3}[/tex]
Mercury is at a distance of 46213267 km from the sun. If the value of this area is rounded off to the nearest one hundred, then the result would be .
Answer:
46,213,300 km
Step-by-step explanation:
46,213,267
in the above number ;
7 = units
6 = tens
2 = hundred
3 = thousand
1 = ten thousand
2 = hundred thousand
6 = million
4 = 10 million
to round off to the nearest hundred, look at the number in the tens (6). If this number is greater than or equal to 5, add 1 to the hundreds unit, if this is not the case, add zero
because 6 is greater than 5, add one to the hundred value
= 46,213,300 km
I need help with my math!!!
Answer:
A
Step-by-step explanation:
Answer:
I’m not sure if I’m right but here I go.
Step-by-step explanation:
Each line goes from zero and down, look at the ponies where they are and find the coordinates.
PLEASE HELP!! WILL GIVE BRAINLIEST!!
also, please provide a step-by- step explanation.
thank you!
Answer:
2501133.6
Step-by-step explanation:
2,100,000(1+.06)^3
You divide 6% by 100 to change it into a decimal. The 3 is 2015-2012 which is the time.
Roy has a 120-meter strip to work with.
How many 1 decimeter pieces can be cut from his strip
Answer:
1,200 one decimeter pieces can be cut
Step-by-step explanation:
Find how many 1 decimeter pieces can be cut by converting the 120 meters to decimeters.
In 1 meter, there are 10 decimeters.
So, convert 120 meters to decimeters by multiplying it by 10:
120(10)
= 1,200
So, there are 1,200 decimeters in the strip. This means that 1,200 one decimeter pieces can be cut, since 1,200 divided by 1 is 1,200.
So, 1,200 one decimeter pieces can be cut
plz help fast
1. Why are all rectangles parallelograms, but all parallelograms are not rectangles?
2. What properties must a quadrilateral posses in order for the quadrilateral to be classified as a:
a) trapezoid
b) isosceles trapezoid?
Answer:
1: Because all lines on a rectangle never touch so it is a parallelogram. But all sides of a square don't touch either, so that's also a parallelogram. So not all parallelograms are rectangles since squares are also parallelograms
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. All internal angles of a rectangle are 90° while the internal angles of a parallelogram may differ
2. A quadrilateral just means anything with 4 sides (quad meaning 4 and lateral meaning sides) and it is 2-dimensional with straight sides.
Therefore, the trapezoid and isosceles trapezoid are quadrilateral
a) A quadrilateral must have a pair of parallel sides to be classified as a trapezoid.
b) A quadrilateral must have the left and right side to be of equal length and the base angles equal to be classified as an isosceles trapezoid
I hope this answers your questions correctly
round 1.3185 to 2 significant figures
WILL GIVE BRAINLIEST
What units would you use to describe the volume of a box measured in feet?
A. Square centimeters
B. Square Feet
C. Feet
D. Cubed feet
Answer:
D. Cubes feet
hope it's right:))
Answer:
should be feet and 3 which is cubed feet D
Step-by-step explanation:
5 of 7
The interior angle of a regular polygon is 165º.
How many sides does the polygon have?
Answer:
24 sides
Step-by-step explanation:
An exterior angle of a regular polygon is 360 divided by the number of sides. The exterior angle is equal to the interior angle subtracted from 180. We can say an exterior angle of this polygon is 180 - 165 or 15. From the first property, we can write an equation:
360/n = 15
360 = 15n
n = 24
24 sides
Another way to do this, is the formula for an interior angle of a regular polygon is:
180(n - 2)/n
This is equal to the interior angle:
180(n-2)/n = 165
180n - 360 = 165n
15n - 360 = 0
15n = 360
n = 24
Which law would you use to simplify the expression
A.)24
B.)37
C.)58
D.)19
PLZ HELP ILL GIVE YOU THE BRAINLIEST IF RIGHT‼️
I need the simplified answer :)
Stefan bought 3 hamburgers and 4 fries for a total cost of $26.50.
Step-by-step explanation:
system of Linear Equations 2 variables
hamburger = x
fries = y
Stefan
3x + 4y = $26.5
Nancy
4x + 2y = $29.5
elimination
3x + 4y = $26.5 | ×1 |
4x + 2y = $29.5 | ×2 | -
3x + 4y = $26.5
8x + 4y = $59. -
-5x = $-32,5
x = $-32,5 ÷ -5
x = hamburger = $6.50
I hope this help
-7b - 9ac + 4b + 12ac, is equivalent to
[tex]\longrightarrow{\green{ \: - 3 \: (b - ac)}}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]
[tex] \: - 7b - 9ac + 4b + 12ac[/tex]
➼[tex] \: - 7b + 4b - 9ac + 12ac[/tex]
➼[tex] \: - 3b + 3ac[/tex]
➼[tex] \: - 3 \: (b - ac)[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}[/tex]
Paige ran four miles a day last week. This week, she ran five miles a day. How did adding a mile most likely affect her workout?
Answer:
A. It increased both her intensity and her workout time.
Step-by-step explanation:
A. It increased both her intensity and her workout time.
B. It decreased her intensity but increased her workout time.
C. It increased her intensity but decreased her workout time.
D. It decreased both her intensity and work out time
Last week = 4 miles per day
This week = 5 miles per day
Intensity refers to how hard one exercises.
Workout time refers to how long one exercises the body.
By adding a mile, she has increased how hard she exercises her body (intensity))
And also increased how long she exercises the body (workout time) because the time she spent on 5 miles per day is more than time spent on 4 miles per day
Worth 10 points
It’s a picture so it’s clear
Describe and correct the error in writing an equation of the line.
(Please no links or false answers)
Answer:
the mistake they made was the wrong offset from point (0,0) into the y direction. the incline of the line was correct.
the correct equation is y = 1/2×x - 2, because this line contains both points (4,0) and (0,-2)
Step-by-step explanation:
we are looking for a line equation
y = a×x + b
the 2 points give us 2 equations to solve for the 2 variables a and b :
0 = a×4 + b
-2 = a×0 + b
=> b = -2
=> -b = a×4, => a = -b/4 = 2/4 = 1/2
so, the right equation for the line going through both points is
y = 1/2×x - 2
the difference to the original equation is simply the offset from the x- axis in the y direction.
the original equation would be parallel to the correct equation but hit the y-axis at (0,4) instead of (0,-2), and it would hit the x-axis at (-8,0) instead of (4,0)
Find the total area for the composite figure below
Area of triangle + rectangle
= 1/2× 9×4 + 9×6
= 18+ 54
= 72
Answer:
72 units²
Step-by-step explanation:
A(Triangle) = 1/2(9)(4) = 18 units²
A(Rectangle) = 9(6) = 54 units²
A(Figure) = 18 + 54 = 72 units²
please answer will mark brainliest
Answer:
The same as
Step-by-step explanation:
When writing coordinates₋₋also known as "points" on a coordinate plane₋₋you write it as (x point,y point) more simply written as (x,y).
So in both tables, you can see that there are several coordinates listed. Each with the same format (x,y).
If you compare the two tables, you can see that the numbers in the (x,y) position are the exact same for corresponding coordinates.
Now you can conclude what the answer is:
The x-coordinates in Table A are the same as the x-coordinates in Table B.
How many 1/4 mile segments are in a 2 mile relay?
[tex]\frac{2}{1}[/tex] ÷ [tex]\frac{1}{4}[/tex] is the same as [tex]\frac{2}{1}[/tex] × [tex]\frac{4}{1}[/tex]
[tex]\frac{2}{1}[/tex] × [tex]\frac{4}{1}[/tex] = [tex]\frac{8}{1}[/tex]
= 8
I hope this helps! :D