Answer:
WARNING! THE PERSON ABOVE ME IS WRONG.
The correct answer is 3. (C)
ED2021
Telling the managers in each of the 5 departments to randomly select 10 people to take the survey.
What is a random sample?An unprejudiced portion of a population is chosen in a simple random sampling. With this sampling technique, the possibility of selection bias is reduced because every person of the population has an exact equal probability of being chosen.
A simple random sample is a group of people chosen at random, all with the same probability, from a larger group of people in statistics. It involves a method of randomly choosing a sample.
Random sampling assures that the results of sample should be close to those that would have been found if the complete population had been measured. With the simplest random sample, each unit in the population has an equal probability of being chosen.
Therefore, Option B is correct.
Learn more about random sample from here:
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A brick has the following dimensions:
Length = 30 cm
Width = 10 cm
Height = 5 cm
What is the volume of the brick.
Please answer fasttt!!
Answer:
1500 cm
Step-by-step explanation:
Volume = length x Width x Height
Length = 30 cm
Width = 10 cm
Height = 5 cm
30 x 10 x 5 = 1500
Cynthia rounds a number, x, to one decimal point.
The result is 6.3
Write down the error interval for x.
Answer:
[6.26,6.29]U[6.31,6.34
Step-by-step explanation:
6.26
6.27
6.28
6.29
6.31
6.32
6.33
6.34
So in interval form [6.26,6.29]U[6.31,6.34]
Discriminant 9v^2+v+5=0
Answer:
-179, since it is negative then there are no real roots
Step-by-step explanation:
b²-4ac is the discriminant formula
9v² + v + 5 = 0 ∴ a = 9, b = 1, c = 5
1² - 4(9)(5) = -179
Help me please I’ll give brainliest
Answer:
its B
hope it helps
byeeeee
6. Sales associates at a local clothing
store eam a 2% commission on the
clothes they sell if an associate earned
$50 in commission, what was the value
of her sales? Explain how you can
check your answer.
Answer quick PLZZ no website
Answer:
$2500
Step-by-step explanation:
Given data
Percent commission from sale= 2%
We are told that an associate earned $50 from sales
Let the amount of the sales be x
so
2/100*x= 50
0.02x=50
Divide both sides by 0.02
x=50/0.02
x=2500
Hence the sales made was $2500
Find the missing sides and angles of this triangle
Answer:
LK = 3.56
ML = 8.76
m∠L = 66°
Step-by-step explanation:
tan 24 = [tex]\frac{LK}{8}[/tex]
8 tan 24 = LK
LK = 3.56
cos 24 = [tex]\frac{8}{ML}[/tex]
ML cos 24 = 8
ML = [tex]\frac{8}{cos 24}[/tex] = 8.76
∠L and ∠M are complementary
m∠L + m∠M = 90
m∠L + 24 = 90
m∠L = 66°
Note: You need to learn the definitions of all the trig functions and then these types of problems are easy.
For example, Tan of an angle = oppside/adjacent side. OK?
A store has clearance items that have been marked down by 60%. They are having a sale, advertising an additional 15% off clearance items. What percent of the original price do you end up paying?
Answer: 34%
Step-by-step explanation:
Given
Price is marked down by 60% with an additional discount of 15% on the marked down price
Suppose x is the original price of the item
After marking down, it is
[tex]\Rightarrow x-x\times 0.6=0.4x[/tex]
after additional discount it is
[tex]\Rightarrow 0.4x(1-0.15)=0.4x\times 0.85=0.34x[/tex]
Effective discount on the item is
[tex]\Rightarrow \dfrac{x-0.34x}{x}\times 100=66\%[/tex]
Thus, a person is paying [tex]100-66=34\%[/tex] of the original price
-3(6v-3w-5)
i have to use the distributive property to remove the parentheses
Answer:
-18v + 9w +15
Step-by-step explanation:
-3(6v-3w-5)
You can use a table or multiply each term
-3(6v) + -3(-3w) + -3(-5)
= -18v + (9w) + (15)
= -18v + 9w + 15
At a local print shop, 12 copies can be made for $3. At this rate, how much would it cost to make 84 copies? Fill out the table of equivalent ratios until you find a value of x. But i don't get it i divided 21 but got 4/7 & 1/7 so do i multiply or what
Answer:
I'm not understanding the second part. Can you elaborate more in the comments?
But it would cost $21
Answer:
$21
Step-by-step explanation:
You have to use ratios
[tex]\frac{12}{3} =\frac{84}{x} \\\\12x=252\\x=21[/tex]
It would cost $21 to make 84 copies
I WILL GIVE BRAINLIEST!!!
Answer:
The Answer is odd hope this helps :)
Step-by-step explanation:
find the volume of a sphere that has a radius of 4cm.
Answer: 267.9 cm if ur using 3.14 as pi :)
Ben's mom wants to buy a new carpet for the family room that measures 12 feet by 11 feet. She can purchase the carpet on sale for 6$ per square foot including installation. How much will bens mom spend to carpet the family room?
Answer:
$792
Step-by-step explanation:
The measure of the carpet is 12 feet by 11 feet.
She can purchase the carpet on sale for 6$ per square foot including installation.
The area of the carpet will be calculated as follows :
[tex]A=l\times b\\\\A=12\times 11\\A=132\ ft^2[/tex]
If the cost is $6 per square foot, then net cost will be :
Cost = 132×6
Cost = $792
So, she will spend $792 to carpet the family room.
Given PQRS and ZS = 40°, what is the measure of ZR?
S
R
40°
Answer:
angle R = 140 degrees
Step-by-step explanation:
I need help with letter A
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: x = 9
Explanation:
17x = 153
x = 9
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
9
Step-by-step explanation:
153/17=9
X
_ = 4
3
whats the answer for x?
PLS ANSWER ASAP
Answer:
x = 12
Step-by-step explanation:
Because if you multiply 3 and 4 its 12 Which makes the answer 12
which two dimensial shape can be roatated about one of its edges to create a cone
Answer:
The Triangle
Step-by-step explanation:
Answer:
b and c
Step-by-step explanation:
The sum of two numbers is 400. The smaller number
is 100 less than the larger number, n.
What is the value of n?
a.150
b.200
c.250
d.300
Answer:
The answer is c, 250.
Step-by-step explanation:
Smaller number = n - 100
Bigger number = n
n + n - 100 = 400
2n = 500
n = 250
Check that this is true:
250 + 250 - 100 = 400
What is the area of the shaded figure
Answer:
42 square units
Step-by-step explanation:
imagine the rectangle around the original shape, it would be LxW which wold be 9 x 6 = 54. Then if you find the area of the two triangles cut out of the left and right sides, each triangle area is 1/2 base x height, which is 1/2(6x2)=1/2(12)=6 and x2 for 2 triangles and that = 12.
Now subtract 54-12=42 sq. units shaded.
I'LL GIVE BRAINLIEST PLEASE ANSWER ALL FOUR PLEASE
Answer:
Step-by-step explanation:
1.) 700*0.42 = 294. Out of the 700 people at the concert, 294 are tennagers.
2.) 1.07*$450 = $481.50, including sales tax (final price)
3.) 120/(100%-85%) = 120/0.15 = 800. Original amount of water is 800 ml (Check by 800mL*0.15, which equals 120 mL)
4.) 100-35-45 = 20%
250*20% = 50; Out of the 250 sandwiches, Josh made 50 ham sandwiches.
Calculate the volume of the pyramid? I need help quickly
Answer:
480
Step-by-step explanation:
A road is inclined at an angle of 5°. After
driving 5,328 feet along this road, find the
driver's increase in altitude Round to the
nearest foot
Answer:
464 feet
Step-by-step explanation:
The Sine of the angle of inclination gives the increase in altitude.
This is because the Sine of an angle is equal to the Opposite side divided by the Hypotenuse side. i.e
Sin Ф = Opposite ÷ Hypotenuse
Sin 5° = O ÷ 5328
0·08716 = O ÷ 5328
Make O the subject and multiply every fraction by 5328
(0·08716/1 × 5328)= (O/5328 × 5328)
464·388 = O
∴ The increase in altitude is 464·388 feet
This is supposed to be to the nearest foot so we round off
464·388 becomes 464 feet
Use the distributive property for this expression to simplify. *
7y(10.2 + 11y)
please help asap
CAN SOMEONE PLEASE HELP ME WITH THIS??
Answer:
6^5 * a^3 * b ^2
Step-by-step explanation:
6 occurs 5 times in this equation
so it would be 6^5 (6 to the 5th)
a occurs 3 times in this equation
so it would be a^3 (a to the 3rd)
b occurs 2 times in this equation
so it would be b^2 (b to the 2nd)
Answer:
6*4
b*2
a*3
Step-by-step explanation:
Help plsss it’s urgent!!!!!! Thank you!!!
Answer:
20 π unit ^3 is your answer mate. . .
Answer:
V = 62.8
Step-by-step explanation:
To get the answer. The equation is pi(r)^2. You square the radius (2 x 2) which equals 4 and then you times it by the height, which is 5. This gives you 20, and then you multiply pi to it (3.14) to get an exact answer of 62.8.
The sum of three numbers is 41.the second number is 5 times the first.the third number is 14 less than the second.what is the third number?
Answer:
the third number is 11
Step-by-step explanation:
the first number is 5 so the second number since its five times the first is 25 and the third being 14 less then the second is 11
so 5+25+11= 41
Which sentence is true?
I’m marking brainliest to the person with the correct answer !!!
Answer:
2nd one
Step-by-step explanation:
75% of the 40 beverages in the vending machine are sports drinks. How many of the beverages are sports drinks?
Today, Heather is 9 years and 3 months old, How old was she 2 years and 6 months ago?
If the radius of a circle is 44 cm, then what is the diameter?
A 44 cm
B 88 cm
C 22 cm
D 1 cm
Step-by-step explanation:
[tex]44 \times 2 = 88[/tex]
Answer:
B, 88 cm
Step-by-step explanation:
Remember, the radius is half the diameter, so if you know the radius, all you have to do is multiply it by 2 to get the diameter.
44*2=88
Diameter=88 cm
Hey Guys can you help me with this? An article is sold at a certain price. By selling it at 2/3 of that price, one loses 10%. Find the profit percent at the original price. Thanks!
Answer:
35%
Step-by-step explanation:
If you see 2/3 as it is, each piece could be 35 pieces, leaving you with the profit, 35%
Plain explanation but I hope this helped!