In a group of 20 students, 7 study both Art and Biology.
5 study Biology but not Art.
8 study neither subject.
Given that a randomly selected student studies Art, what is the probability the student studies Art and Biology?
Answer:
Step-by-step explanation:
A + B = 7
(Not A) + B = 5
(Not A) + (Not B) = 8
(Not A) = ((Not A) + B) + ((Not A) + (Not B) = 13
A = 20 - (Not A) = 7
Prob (A + B) given (A)
Prob (A+B) || A = (7/20) / (7/20)
Prob (A + B) || A = 1
4 boys have a mean height of 162cm.Another boy with a height of 165cm joins them.What is the new mean height?
Answer: 162.6cm
Step-by-step explanation:
4 boys have a mean height of 162cm. Their total height will be the average multiplied by the number of boys which will be:
= 162 × 4
= 648cm
A new boy with height of 165cm joined. This means that we now have 5 boys and their total height will be:
= 648cm + 165cm
= 813cm
The new mean height will be:
= Total height / Number of boys
= 813 / 5
= 162.6cm
Translate the figure 2 unit left and 4 units down.
I need the answer now.
Which net represents the figure?
Please help
Answer:
the first one
Step-by-step explanation:
the rest of the options have triangles and a rectangular prism doesnt have any triangle shaped sides. hope my answer makes sense :)
Answer: the one that looks like an upside t or it can be called (A)
Step-by-step explanation:
do the folding in your head
Simplify 4x × 5y
i really need halp quick!
Answer:
Step-by-step explanation:
Multiply the constants and the variables
(4*5)(x*y) = 20xy
can yall plz help and show work
Answer:
#4: ≤
Step-by-step explanation:
10- Every time we...............
to that restaurant, my stomach gets upset.
went.
have gone.
will go.
go
Answer:
Step-by-step explanation:
Went is the correct answer
help pleaseee?? explain
Answer:
sorry I didn't know what to do in this
really really sorry of which class you are .?
In a certain city, E Street, W Street, C Street, and
D Street are parallel streets that intersect K Street
and M Street. How long is K Street between C Street
and D Street?
Answer:
it is d because the age of 200
The required measure of Street K between Street C and D is 337.5 ft.
Given that,
In a certain city, E Street, W Street, C Street, and D Street are parallel streets that intersect K Street and M Street. How long is K Street between C Street and D Street is to be determined.
The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.
here,
Let the distance of street K between C and D be x,
Now,
Taking the equality of the proportionality expression of triangles,
600 / 400 = 600 + x / 400 + 250
6 / 4 = 600 + x / 625
3750/4 = 600 + x
937.5 = 600 + x
x = 337.5
Thus, The required measure of Street K between Street C and D is 337.5 ft.
Learn more about ratios here:
brainly.com/question/13419413
#SPJ2
A cab company charges $1 fee for the cab ride,
plus an additional $2 per mile driven. How many
miles did the driver go if the total cost for the cab
ride was $25?
Answer:
12 miles
Step-by-step explanation:
25 - $1 fee= 24/$2 per mile = 12 miles
Answer:
12mi
Step-by-step explanation:
First find the equation implied by this problem. Using m as the unknown number of miles, we find:
$1 + $2m = $25
2m = 24
m = 12mi
A car travels at an average rate of speed of 75 miles per hour. How many hours would it take you to
go 450 miles? Need help
Answer:
6 hours
Step-by-step explanation:
75 x 6 = 450
1cm 6cm is equal to?
Will give brainliest!! Please help
Answer:
2.67m
Step-by-step explanation:
Find the scale factor= 5/3
times 1.6 by 5/3 = 2.67
What does point A represent?
Please help me with this sheet asap!!!!b
Step-by-step explanation:
1)
SA= 2 (Length x Breadth + breadth x height + Length x height)
SA= 2(2*5+5*6+6*2)=2(10+30+12)=104cm^2
2)
2(3*4+4*5+5*3)= 2(12+20+15)=94cm^2
3)
2(7*9+9*12+12*7)=2(63+108+84)= 510cm^2
4)
SA=
[tex]A=2πrh+2π {r}^{2}
[tex]A=2πrh+2π {r}^{2} [/tex]
= 2π 6*5+2π6*6= 188.495+226.194
SA= 414.689 cm^2
5)
2π7*4+2π*4*4=
SA=276.46 cm^2
6)
2π6*4+2π*4*4=
SA= 251.33 cm^2
7)
(3*4)/2=6
(3*4)/2=6
(3*8)=24
4*8=32
8*5=40
SA =6+6+24+32+40=108 cm^2
8)
(6*8)/2=24
(6*8)/2=24
6*12=72
8*12=96
10*12=120
SA= 24+24+72+96+120= 336 cm^2
9)
(5*12)/2=30
(5*12)/2=30
5*8=40
12*8=96
13*8=104
SA= 30+30+40+96+104= 300 cm^2
Whoever gets this right I will mark u brainliest
Which equation matches the graph below
Answer:
y= -x-5
Step-by-step explanation:
Hope this helps !
Answer:
y=-x-5
Step-by-step explanation:
The x intercept is -5
Hope this helps ^-^
alos heres a hint...use desmos
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the
time after launch, x in seconds, by the given equation. Using this equation, find the
maximum height reached by the rocket, to the nearest tenth of a foot.
y = -16x2 + 160x + 51
Answer:
451
Step-by-step explanation:
on a calculator go to y= and type the equation in and then go to the table.
Which model represents 3divided by 1/4
Answer:
the model should or would show twelve
Step-by-step explanation:
The variables x and y are proportional. Use the values to find the constant of proportionality. Then write an equation that relates x and y. Write any fractions in the simplest form. When y=20 , x=12.
Given:
y is proportional to x.
y=20 and x=12.
To find:
The constant of proportionality and the equation for the proportional relationship.
Solution:
y is proportional to x.
[tex]y\propto x[/tex]
[tex]y=kx[/tex] ...(i)
Where, k is the constant of proportionality.
Putting y=20 and x=12, we get
[tex]20=k(12)[/tex]
[tex]\dfrac{20}{12}=k[/tex]
[tex]\dfrac{5}{3}=k[/tex]
Putting [tex]k=\dfrac{5}{3}[/tex] in (i), we get
[tex]y=\dfrac{5}{3}x[/tex]
Therefore, the contestant of proportionality is [tex]k=\dfrac{5}{3}[/tex] and the equation for the proportional relationship is [tex]y=\dfrac{5}{3}x[/tex].
Please help me :) please
Answer:
2r +3
Step-by-step explanation:
If Riad is r than double that is 2r, but Francis also has 3 more than this so it is
2r +3
Answer:
2r+3
Step-by-step explanation:
I hope this helped!
what’s the equation for this table?
Answer:
y=2.5x-3
Step-by-step explanation:
first, we find the y-intercept, which is the number with a zero in the x
That would be -3
next, we find the slope
to do this, we have to take two numbers on the y side next to each other and subtract.
For this example we will use 7 and 2
7-2=5
And just to be positive, we will also do 12 and 7
12-7=5
Okay, now that we know that the number is growing by 5 every time, we know that it is now 5/2 because y is growing by 5 and x is growing by 2
Now, we make the x side grow by only 1, so to do this, we will divide both sides by two.
Now we have 5/1 or just 5
Finally, to put that into the right format, we do y=5x-3
You're Welcome
Good Luck
How do i get from 7 to 35?
Answer:
Step-by-step explanation:
I fu-ck-ed my girl-friend real good
Based on this picture, if ∠3 = 50˚then what is m∠8?
SHOW WORK PLEASE
5(7x) in standard form?
Answer:
35x
Step-by-step explanation:
Take 7 times 5 and you get 35c
Answer:
35x
Step-by-step explanation:
Multiply 5*7 and add the x to the end = 35 x
Hope this helps :)
There were some zombies in the kitchen, however, the lunch lady was able to eliminate 5 zombies. There are now 12 zombies in the kitchen. How many zombies were in kitchen before the lunch lady took care of a few? J K L 60 8 17
WHat is 75x6-8+7-60+9/6x 1-8+8x0=?
Answer:
so basically it would be
Step-by-step explanation:
0
0
0
0
0
help!! what’s the equation for the green line.
Answer:
y=x-3
Step-by-step explanation:
slope intercept form equation is y=mx+b
b is the y intercept(where it crosses on the y-axis)
b=-3
m is the slope
slope is rise over run (start from -3)
slope is 3 over 3 (count up 3 from -3, count right 3)
3 over 3 is 1
1x is the same as x
final answer y=x-3
hope this helped
this math question is very hard
Answer:
366.5191425 rad/s
Step-by-step explanation:
9.5492965964254 ÷ 3500
hope this helps :)
Answer:
366.5191425 rad/s
Step-by-step explanation:
It took a while to solve this
Find the area of the figure. Use 3.14 for it.
4 ft
8 ft
L
3 ft
4 ft
3 ft
8 ft
3 ft
The area of the figure is
ft.
In the town of Pleasantville, a poll of 340 residents revealed that 289 residents were opposed to the proposed changes to the town’s zoning laws. We want to use this information to construct and interpret a 90% confidence interval for the true proportion of all Pleasantville residents who are opposed to the proposed changes to the town’s zoning laws. Assume that the population of Pleasantville is over 10,000
Step-by-step explanation:
sorry I don't know the answer