Answer:
50%
Step-by-step explanation:
A score of 100 on the current IQ test with a standard deviation of 15 points means you scored higher than about 25.14% of the population, based on the normal distribution and z-score calculation.
To find the percentage of the population that scored lower than a score of 100 on the IQ test,
Use the z-score formula and the standard normal distribution calculator.
The z-score formula is: z = (X - μ) / σ
Where,
X = The raw score (in this case, 100)
μ = The mean of the distribution (here, the mean IQ score)
σ = The standard deviation of the distribution (in this case, 15)
Now, let's calculate the z-score:
z = (100 - μ) / 15
Since we want to know the percentage of the population that scored higher than 100,
The area under the curve to the right of the z-score in the standard normal distribution calculator.
The standard normal distribution calculator provides the cumulative probability to the left of the z-score.
To get the percentage of the population that scored higher than 100, we subtract the cumulative probability from 1.
Using the calculator, if the z-score is approximately 0.67, then the cumulative probability to the left of the z-score is 0.7486.
The percentage of the population that scored higher than 100 is Percentage = 1 - 0.7486 ≈ 0.2514 or 25.14%
Therefore, a score of 100 on the current IQ test would mean you scored higher than about 25.14% of the population.
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Can you help me with this plz
Hello there
Please check attached image for answer.
Hope it helps ...
~ Benjemin360
BRAINLIEST TO WHOEVER ANSWERS QUICKEST AND IS RIGHT.
anaalyze the problem
first term: -1
common difference: +9 (8-(-1) is 9)
so, an=-1+9n-9
answer is an=9n-10, with n bigger or equal to one
sixth term,plug in 9(6)-10=54-10=44
tenth term, plug in 9(10)-10=90-10=80
can someone help me on math i cant fail
Answer:
A)16
Step-by-step explanation:
Explanation is in the image above.
Hope this helps please mark me brainiest
pls helpppppppppppppppppppppp
A theater group is made up of 21 girls and 24 boys. Fifteen of the girls and 12 of the boys are also in a photography club.
What percent of the theater group is also in the photography club?
Answer:
60%
Step-by-step explanation:
There are a total of 45 people 24 boys and 21 girl=45
27 of them are in the club 27 out of 45=60%
How many cubic yards of concrete are in a light pole caisson having a diameter of 24 inches and a
depth of 6 feet?
a. 2.09
b. 1.4
c. .7
d. 18.9
Answer:
C. 0.7 yd³Step-by-step explanation:
Find the volume of cylinder:
V = πr²hConvert the dimensions into yards:
d = 24 inches = 24/36 yards = 2/3 yards ⇒ r = 1/2d = 1/2*2/3 = 1/3 yardsh = 6 feet = 6/3 yards = 2 yardsFind the volume by substituting the values:
V = 3.14*(1/3)²*2 = 0.69777 ≈ 0.7 yd³Correct choice is C
Someone please help :)
Both pls :)) also ill try Mark u brainliest <33 please answer both :3
Step-by-step explanation:
5. 56÷4 = 14
6. (2 × 27) - 3 × 5 - 8
54 - 15 - 8
39 - 8 = 31 ans.
Hope this answer helps you!
Answer:
5.56÷4=14
6. (2×27)-3×5-8=
1) 2×27=54
2)3×5=15
3)54-15=39
4)39-8=31
Step-by-step explanation:
hope it helped
A tv with marked price 11,500 is sold at 10% discount ,due to festival season the shopkeeper allows a further discount of 5% ,find the net selling price of the TV
Answer:
9,775
Step-by-step explanation:
10% + 5%=15%
11,500-15%
=9,775
A bag contains 90 balls.
The ratio of red to blue to yellow balls is 2:7:1
Find how many red, blue and yellow balls there are.
Answer:
18 red, 63 blue and 9 yellow
Step-by-step explanation:
→ Add the ratios together
90 ÷ ( 2 + 7 + 1 ) = 9
→ Multiply each ratio by
2 × 9 = 18 red
7 × 9 = 63 blue
1 × 9 = 9 yellow
A bag has six balls labeled A,B ,C ,D ,E , and F. One ball will be randomly picked, and its letter will be recorded as the outcome. Give the sample space describing all possible outcomes. Then give all of the outcomes for the event of choosing the letter B, C, E or . If there is more than one element in the set, separate them with commas.
Answer:
abx
Step-by-step explanation:
t i think based on bdheyefs
Helga teaches dance classes. She charges for the classes as shown below. Option 1: $80 per month for five classes Option 2: $900 per year for 60 classes Option 3: $174 for 12 classes Calculate the constant of proportionality for each class. Then select the true statements below. Option 1 and option 3 cost the same amount per class. Option 3 costs the least amount per class. Option 2 and option 3 cost the same amount per class. Option 1 costs $1 more per class than option 2 costs per class. Option 3 costs $1 more per class than option 1 costs per class.
Answer:Option 3 costs the least amount per class.
Option 1 costs $1 more per class than option 2 costs per class.
Step-by-step explanation:blah blah blah
Using the constant of proportionality that is determined, the true statements are:
B. Option 3 costs the least amount per class.
D. Option 1 costs $1 more per class than option 2 costs per class.
How to Find Constant of Proportionality?The constant of proportionality, k, between variables y and x is, k = y/x.
Amount = y
Number of classes = x
Constant of proportionality = y/x.
Option 1:
Constant of proportionality = 80/5 = $16 per class
Option 2:
Constant of proportionality = 900/60 = $15 per class
Option 3:
Constant of proportionality = 174/12 = $14.5 per class
The lowest cost per class is Option 3.
Option 1 is $1 more costlier than Option 2.
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we just learned this and i’m confused pls help :,)
Answer:
10^2
Step-by-step explanation:
small number next to the 10 is how many spaces to the right. its called the exponent
10^2 means 2 spaces to the right
with 10^2 2.33 becomes 233
Answer:
(Trick question) Either B, C, or D.Step-by-step explanation:
Here are all the answers verified.
Remember: 10^1 = 10
10^2 = 100
10^3 = 1000
10^4 = 10,000.
A. Incorrect. 2.33 * 10^1 = 23.3.B. Correct. 2.33 * 10^2 = 233.C. Correct. 2.33 * 10^3 = 2330.D. Correct. 2.33 * 10^4 = 23,300.Question is trick question. Try all of B, C, and D.
If you get one of those right, please notify me.
Round 8,162 to the nearest thousand
Answer:
8,000 :D
Step-by-step explanation:
Answer:
8,000
Step-by-step explanation:
Since the 1 in the hundreds place isn't five or higher we round the number down.
3. If a store had a 20% discount on a coat that was $29.99, how much would you have to pay for the coat?
Answer:
$23.99
Step-by-step explanation:
$29.99 x 0.2 = 5.998
$29.99 - 5.998 = $23.99
Expand 2(q+3) please
Answer:
2q + 6Step-by-step explanation:
Expand the expression with the help of distributive property.
2(q + 3)=> (2 x q) + (2 x 3)=> 2q + 6Hence, the expanded expression is 2q + 6.
Answer:
2q +6
Step-by-step explanation:
The distributive property is used for this purpose. The factor outside parentheses (2) multiplies each of the terms inside parentheses (q, 3).
2(q +3) = 2·q +2·3 = 2q +6
_____
Additional comment
It might help to think of the parentheses as a "bag" containing one "q" and 3 tokens. The number outside parentheses tells you how many "bags" you have. Expanding the expression is equivalent to dumping out the bags and describing the total contents:
2(q +3) = (q +3) +(q +3) . . . . multiplication is the same as repeated addition
= (q +q) +(3 +3)
= 2q +6
Find ij i need help with this
Answer:
IJ is going to be 5400.
Step-by-step explanation:
60*90= 5400.
90 is the right angle on J.
I is 60 degrees.
Can someone help with this?
Answer:
B
Step-by-step explanation:
if you want to have 60,000 and 8 years how much do you need to deposit in the bank today if the account pays an interest rate of 9% ?
Answer: $30111.98
Step-by-step explanation:
60,000=x(1+0.09)^8
60,000=1.99256264169x
x=$30111.98
Convert 111.11 base 2 to base 10
Answer:
31
Step-by-step explanation:
111.11 is an invalid format, 11111 is 31 from binary (base 2) to base 10
Can someone please help me with this :(
Answer:
see attached
Step-by-step explanation:
The legs of the right triangles are drawn along the grid lines. You can count the grid lines to see how long they are. Use the given formula to find the square of the hypotenuse, then take the square root. The hypotenuse of each triangle is the straight-line distance between its end points.
It should be no surprise that 3^2 +4^2 is more than 3^2 +3^2, so the length from B to C will be longer than from A to C.
_____
Additional comment
3√2 ≈ 4.24
Not good with functions however I'm sure this is easy for most people.
--Marking Brainliest whoever answers this first, please hurry
A neighborhood is having a community garage sale, where all items cost the same amount. If you buy 7 items, the price is $2.45, and if you buy 11 items, the price is $3.85. If you graphed the relationship between x, the number of items sold, and y, the total price in dollars, what would be the slope of the line?
The slope of the line is 0.35
x = number of items sold
y = total price in dollars
Therefore,
using slope formula,
The slope is rise over run. The slope of a line is the measure of its steepness.
Slope equation:m = y₂ - y₁ / x₂ - x₁where
y₂ = 3.85
y₁ = 2.45
x₂ = 11
x₁₁ = 7
Therefore,
m = 3.85 - 2.45 / 11 - 7
m = 1.4 / 4
m = 0.35
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Ticket prices for 3-D movies are $10 for a child and $15 for and adult .One adult spends $55 to take a group of children to the movies.Write and solve an equation to find how many children go to the movies.Show your work
55-15=40
40÷10=4
There is one adult and 4 children going to the movies
i need to solve this please
Answer:
[tex]\frac{3x-4}{4} =\frac{7x}{3} +2\\\\\frac{3x-4}{4}=\frac{7x+6}{3} \\\\3(3x-4)=4(7x+6)\\9x-12=28x+24\\-28x+9x=24+12\\-19x=36\\x=-\frac{36}{19}[/tex]
Step-by-step explanation:
Hope it will help you a lot.
3 1/5 + 1 2/5) + 4 4/5 =
Answer:
9 2/5 or 9.4
Step-by-step explanation:
(3 1/5 + 1 2/5) + 4 4/5
(4 3/5) + 4 4/5 =
8 7/5
1 = 5/5
7/5 = 1 2/5
8 + 1 /25 = 9 2/5
Find the area of the figure below by first finding the area of the rectangle and triangles.
Answer:
do you have an image of the math PRoblem
calculate the relative change in tbe monthly cost of eggs from $1.65 to $2.37
Find the area of triangle
Answer: 72
Step-by-step explanation:
[tex]A = \frac{1}{2}bh\\\\A=\frac{1}{2}(12)(12)\\\\A=\boxed{72}[/tex]
HELP ME ASAP! Please
Answer:
3 hours
Step-by-step explanation:
Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their ages now?
Answer:
Present Time
Let X= Eric's age (4/5)X= Seth's age
Question: What are their ages now?________________________________________________________________________
Past (21 years ago)
X-21 =Eric's age (4/5)X-21=Seth's age
2*[4/5(X-21]=Eric's age
Therefore, X-21= 2*[4/5(X)-21]=Eric's age Substitution
_______________________________________________________________________
X-21= 8/5 X - 42 Solve for "X" by adding 42 to both sides.
X-21+42=(8/5) X
X+21 = (8/5)X Subtract "X" from both sides.
21=(3/5)X Multiply both sides of equation by reciprocal of (3/5), which is 5/3
21*(5/3)= X Finish the problem to find value of "X," which is Eric's age.
Then find 4/5 (X)= Seth's age
Seth age = 4/5 × Eric's age
seth age = x
eric age = y
x = 4y/5 .....eqa 1
2(x-21) = y-21 ......eqa 2
2(4y/5 - 21) = y-21
8y/5 - 42 = y -21
8y/5 - y = 21
1.6 y - y = 21
0.6 y = 21
y = 35 years Eric's age
x = 28 years Seth's age
