A student in the sophomore class has an equal chance of being in room 1, 2, 3, 4, or 5 for any of her six classes. What is the probability that she will be in room 3 for at least one class?
a.0.80
b.0.74
c.0.26
d.0.14
Answer:
b might be correct
Step-by-step explanation:
I hope this helps
HELP ME PLS!!!
Thank you!
Help me please with this question
Answer:
P=152
A=79
Step-by-step explanation:
add all the sides
A regular pentagon with sides each measuring 6 inches is dilated by a scale factor of 3.1. What is the length of each side of the dilated pentagon?
Answer:
18.6inches
Step-by-step explanation:
Given the length of a side of a pentagon to be 6 inches.
If this length is dilated by a factor of 3.1, the new length will be;
New length = Old length * dilation factor
New length = 6 * 3.1
New length = 18.6inches
Hence the length of each side of the dilated pentagon is 18.6inches
Quadrilateral HIJK is similar to quadrilateral LMNO. Find the measure of side OL.
Round your answer to the nearest tenth if necessary.
K
19
J
58
O
N
42
H
Answer:
OL = 128.2
Step-by-step explanation:
If the two quadrilaterals are similar, the ratio of their corresponding sides are equal;
Thus;
KJ/KH = NO/OL
19/42 = 58/OL
OL = (42 * 58)/19
OL = 128.2
solve for slope / y intercept and equation
Answer:
slope = 5/2
y-intercept = 3
equation: y = 5/2x + 3
Step-by-step explanation:
i used the points (-2,-2) and (0,3) to find slope
Find the area of the figure.
Please need help on this questions!
THis is the answer for ur question
Answer:
1) volume = 102.92 m²
2a) Perimeter = 28 inches
2b) Actual perimeter = 672 inches or 56 feet
2c) Exactly 24 times greater
Step-by-step explanation:
1)
4x5.5 = 22
full circle = (5.5²)(π) = 95
(30/360)(95) = 7.92
95+7.92 = 102.92 m²
2a)
Perimeter = (2)(6+8) = 28 inches
2b)
Actual perimeter = (2)(144+192) = 672 inches or 56 feet
2c)
(24)(28) = (2)(144+192)
672 = 672
Exactly 24 times greater
Please help me!
I am confused
Answer:
Step-by-step explanation:
A line is expressed as y=mx+b where m=slope and b=y intercept. As long as we have two points we can solve the equation of that line.
y=mx+b
For the top line I found two points (5,200) and (30,325)
m=(y2-y1)/(x2-x1)=(325-200)/(30-5)=125/25=5
y=5x+b, using point (5,200) we can solve for b
200=5(5)+b, b=200-25=175 so the line is
y=5x+175
For the bottom line we have points (5,50) and 10,100)
m=(100-50)/(10-5)=50/5=10
y=10x+b, using point (5,50) we have
50=10(5)+b, b=50-50=0 so
y=10x
Melanie invested $3,800 in an account paying an interest rate of 2% compounded
quarterly. Sebastian invested $3,800 in an account paying an interest rate of 2%
compounded monthly. After 6 years, how much more money would Sebastian have in
his account than Melanie, to the nearest dollar?
Answer:
101
Step-by-step explanation:
Answer:101
Step-by-step explanation:
what's the ratio of suns to planets
Answer:
200 billion to 700 quintillion planets
Step-by-step explanation:
I hope this helps :)
An emergency room (ER) nurse noticed that there are an unusually high number of motor-vehicle accident injuries in the month of December. She pulled 1000 random ER patient files from December and found that 120 of those patients were admitted due to motor-vehicle injuries. Based on this information, the nurse can estimate that _[blank]_ patients of the total 40,000 ER patients seen in December were admitted due to motor-vehicle injuries.
Enter your answer as the number that correctly fills in the blank in the previous paragraph
4800 patients
Step-by-step explanation:
120 of 1000 means 12%
12% of 40000 is 4800
Find the value of: I need help)
What is the gcf of 18 and 9?
Answer:
The GCF is 9
Step-by-step explanation:
9=1,3,9
18=1,2,3,6,9,18
Please help me with this one
Answer:
70
Step-by-step explanation:
since you are solving for the middle angle, you solve for the average for both angles on the side
(112+28)/2=70
x=70
Hope that helps :)
Help me find x please
Answer:
x = 14°
Step-by-step explanation:
We can see that these angles are supplementary.
Set up an equation
x + 96 + 5x = 180
6x + 96 = 180
subtract 96 from both sides
6x = 84
x = 14
Thus, we have our answer
Given V = 60 volts of an outlet in a select country, and I= 0.5 amps are being pulled to the 60 watt bulb, solve V = IR in terms of R, and substitute the given quantities.
Answer:
120 ohms
Step-by-step explanation:
Given data
Voltage= 60 volts
Current= 0.5 amps
Power of bulb= 60 watt
We know that from Ohms law
V= IR
Make R subject of the formula
R= V/I
R= 60/0.5
R= 120 ohms
Hence the resistance is 120ohms
Solve for x. Round to the nearest hundredth.
plz help..... A car travels 205 km on 20 liters of petrol. how many liters of petrol is needed for a journey of 820 km?
Answer:80 liters of petrol
In a department store a $40 dress is marked save 25%.You also pay a 7% sales tax. What is the sale price of the dress?
Answer:
$32.1
Step-by-step explanation:
First find out what 25% of 40 is:
$40 x .25 = $10
Take the answer and subtract that from the original price:
$40 - $10 = $30
Next, take the sales tax (7% or 0.07) and multiply that by the new price:
$30 x 0.07 = $2.1
Lastly, take the answer and add that to the new price:
$30 + $2.1 = $32.1
Then you would get your answer:
$32.1
D is between Cand E. CE = 8x + 5.
CD = 4x + 1. DE = 6x. Find the length
of CE.
E
C с
D
Answer:
CE = 21 units
Step-by-step explanation:
Since, D is between Cand E (C - D - E)
Therefore,
CE = CD + DE
8x + 5 = 4x + 1 + 6x
8x + 5 = 10x + 1
8x - 10x = 1 - 5
-2x = - 4
2x = 4
x = 4/2
x = 2
CE = 8x + 5 = 8*2 + 5 = 16 + 5 = 21 units
who ever knows what 12×75 is I'll give brainliest
Answer:
900
Step-by-step explanation:
Answer:
Answer: 12×75
= 900
Step-by-step explanation:
Hope this helps
A center with 100 children must have a play are how large?
Well-designed child care centers typically have approximately 100 square feet per child of space in the overall center. So for example, a center proposing to serve 80 children would be likely to need a building that has about 8,000 square feet of total space available.
Can anybody please help me with question 1 please...I would really appreciate it so much
Answer:
The total time the water balloon is in the air is 8 seconds. The balloon reaches the maximum height of 25 fee after 3 seconds. The water balloon has a height of 24 feet at 2 seconds and a half.
Step-by-step explanation:
Answer:
I was saying the same thing
Step-by-step explanation:
PLEASE HELP 76 POINTS! Please answer both questions, giving brainliest to correct answer.
Answer:
2 5/6 ft
Step-by-step explanation:
Paul perimeter = 4 1/2+6+3 1/3+3 1/3+6 = 23 1/6 ft
Ian perimeter = 2(8+5) = 26 ft
26-23 1/6 = 2 5/6 ft
Answer:
It’s c. B)))))
Step-by-step explanation:
Dustin computed his family's road trip as
4.43 x 103 miles. How many miles did
Dustin's family travel on the road trip?
Answer:
456.29 miles
Step-by-step explanation:
Hope this helps!
Expand 2(b + 6 ) can somone please tell me the anwnser
Answer: 2b+12
Step-by-step explanation:
Because the number is in front of the bracket you have to times everything in the bracket by the number on the outside.
So,
2 times b is 2b
And
2 times 6 is 12
So it would be 2b+12
Look at the answer below
Answer:
D = 18 miles
Step-by-step explanation:
The coordinate of a library = (4,3)
The coordinate of the school = (-5,3)
We need to find the distance between the library and the school. We can use the distance formula i.e.
[tex]D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\=\sqrt{(-5-4)^2+(3-3)^2}\\\\=\sqrt{81}\\\\=9\ miles[/tex]
As the distance between each unit represents 2 miles. It means the distance is 2(9) = 18 miles
So, the correct option is (c).
Please help me it would help a lot
Answer:
x=11°
<Bec = 33°
<Ced = 39°
Step-by-step explanation:
That's a right angle so it would be 90 degrees angle.
18+3x+4x-5=90
Lets simplify it to make it easier to work out by collecting like terms.
First all the variable 3x+4x=7x
Then the numbers 18+-5=13
13(-13)+7x = 90(-13)take away 13 from both sides
(Opposite operators EG, Add becomes subtract)
7x = 77 then divide 7 from both sides
x=11
Then work out
3x11=33 degrees
4x11=44-5=39 degrees
To double check 39+33+18=90 degrees
Bradley had 25 baseball cards in his collection. He receives x number of baseball cards for his birthday.
Enter an equation that represents the total number of baseball cards, y, Bradley now has in his collection.
Answer:
my friends last name is bradley
Step-by-step explanation: