Answer:D
Step-by-step explanation:
The effect of the time of day a science class is taught on test scores being studied in an experiment will be the length of the class period. The correct option is D.
What is a test analysis?
A test score is a piece of data, typically a number, that describes how well a test-taker performed. It is "a summary of the evidence contained in an examinee's replies to the test items that are connected to the construct or constructs being tested," according to one formal definition.
Given that the effect of the time of day a science class is taught on test scores is being studied in an experiment.
The time of the class periods is affected by the length of the class period. The length of the class period of one subject should be optimum so that students get the concepts easily without getting bored.
Therefore, an effect of the time of day a science class is taught on test scores being studied in an experiment will be the length of the class period. The correct option is D.
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During a sale of computers, one-fourth of
the inventory was sold the first day. The next
day two-thirds of the remaining inventory was
sold. What percent of the total inventory was
sold during the second day?
Answer:
On the second day, 50% of the total computer inventory was sold.
Step-by-step explanation:
Since during a sale of computers, one-fourth of the inventory was sold the first day, while the next day two-thirds of the remaining inventory was sold, to determine what percent of the total inventory was sold during the second day, we must perform the following calculations:
1/4 = 0.25 = 25%
Remaining = 100 - 25 = 75%
75/3 = 25 x 2 = 50
Thus, on the second day, 50% of the total computer inventory was sold.
7. Which of the following number has a rational root?
A V322
V324
B. 7323
D. 7325
Answer:
Step-by-step explanation:
Prime factorize the number. Only 324 can be factorized.
[tex]\sqrt{324}=\sqrt{2*2*3*3*3*3}=2*3*3=18[/tex] is rational number
Please help. I don’t understand the question.
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Answer:
-21, 13
Step-by-step explanation:
If Z is located to the right of Y, its point on the number line is -4+17 = 13.
If Z is located to the left of Y, its point on the number line is -4-17 = -21.
There are two possible locations for Z on a number line.
_____
In a 2-dimensional plane, there are an infinite number of locations of distance 17 from a given point. The set of all of them makes a circle on the plane, with radius 17.
In 3-dimensions, the set of points becomes a sphere with radius 17.
Ted jogged a total of 11.2 miles in 4 days. He jogged the same distance each day
Part A
How far did he jog each day? Enter your answer in the box,
2.8
milos
00:00
Part B
How many total miles would Ted jog if he continued to jog the same number of miles each day for 6 days? Enter your answer in the box
Answer:
Part A: 2.8 miles
Part B: 16.8 miles
Step-by-step explanation:
First, solve for how many miles Ted jogged in 1 day:
Variable x = number of miles
11.2/4 = x/1
Cross multiply
11.2 × 1 = 4 × x
11.2 = 4x
Divide both sides by 4
2.8 = x
He jogged 2.8 miles every day.
To find how many miles Ted would jog in 6 days, simply multiply his miles per day by the number of days he will jog:
2.8 miles × 6 days = 16.8 miles in 6 days
The number 4,250 is ten times smaller than what number?
Answer:
42,500
Step-by-step explanation:
The number which is ten times greater than 4250 is 42, 500.
What is algebra?A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.
Variables are the name given to these symbols because they lack set values.
In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.
Given:
The number 4,250 is ten times smaller than what number.
let the number be x.
So, x/10 = 4250
Now, make x as subject formula
x = 4250(10)
x= 42500
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name the song
What is the median of the data set shown?34, 86, 12, 56, 21, 98, 72, 34, 21, 34, 45, 23, 97, 44
Answer:
39
Step-by-step explanation:
median is the middle number
12, 21, 21, 23, 34, 34, 34, 44, 45, 56, 72, 86, 97, 98
34-44=10
10/2=5
34+5=39
39
NO LINKS PLEASE
Which algebraic rule represents the pattern in the table?
multiplying each number by 8
Answer: n=m divided by 8
Step-by-step explanation:
According to genetic theory, the blossom color in the second generation of a certain cross of sweet peas should be red or white in a 3:1 ratio. That is, each plant has probability 3/4 of having red blossoms, and the blossom colors of separate plants are independent. Using the Binomial distribution, what is the exact probability that more than 7 out of 10 these plants have red blossoms
Answer:
The answer is "0.250".
Step-by-step explanation:
Given:
[tex]P(X=7) \\\\ n=10\\\\ p=0.75\\\\x \sim Binomial (n = 10, p = 0.75)\\[/tex]
[tex]P(X=7) =\binom{n}{x} P^{x} (1-p)^{(n-x)} \\\\[/tex]
[tex]= \binom{10}{7}(0.75)^7(1-0.75)^{10-7} \\\\=120 \times (0.75)^7 \times (0.25)^3\\\\=0.250[/tex]
In AFGH, the measure of ZH=90°, the measure of ZF=44°, and GH = 14 feet. Find
the length of HF to the nearest tenth of a foot.
Answer:
In AFGH, the measure of ZH=90°, the measure of ZF=44°, and GH = 14 feet. Find the length of HF to the nearest tenth of a foot. - 22536102.
Step-by-step explanation:
find the value of" A" such that triangle DEF with vertices D (a,1) , E(10,7) and F(7 ,11) is a right angle at E?
a=2
Answer:
(m1) slope of DE=(7-1)/(10-a)=6/(10-a)
(m2) slope of EF=(11-7)/(7-10)=4/-3=-4/3
since line are perpendicular
m1m2=-1
6/(10-a) ×-4/3=-1
6/(10-a)=3/4
6×4=3(10-a)
24=30-3a
3a=30-24
a=6/3=2
A basket has 6 bananas, 2 oranges and 4 apples. What is the probability of pulling out an apple?
-3 < 5 true or false
Answer:
true
Step-by-step explanation:
Answer:
true?
Step-by-step explanation:
no links plz help
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
the answer is essentially d
anyone please help .
...
Answer:
HI is 8 as the equal angles resemble equilateral triangle
rhe angle is 110 as the two equal sides represent isosceles triangle
Step-by-step explanation:
hope it helped!!!
7. Find the volume of the hemisphere if the dimeter is 18mm. Round to the nearest
tenth.
Answer:
20
Step-by-step explanation:
HELP ME PLEASE I CAN'T FAIL THIS!!!
To find the distance AB across a river, a distance BC of 319 m is laid off on one side of the river. It is found that B = 104.6° and C = 14.4°. Find AB.
Answer:
90.70464953m
Step-by-step explanation:
Look at the image
Two people share proceeds of a business venture in the ratio 2:3 If the proceeds came to GHS 2,350,000 how much does each get?
Answer:
GHS 940,000 and GHS 1,410,000
Step-by-step explanation:
Total Ratio, thus 2+3 = 5 = 2,350,000
2/5 × 2,350,000 = 940,000
3/5 × 2,350,000 = 1,410,000
In conclusion, the money was shared at GHS 940,000 and GHS 1,410,000 among the two.
Can somebody please help me!!
Step-by-step explanation:
it is in the picture that I have provided
Pls help I need a good grade
Answer:
If it is number 5. the answer is 13
Step-by-step explanation:
take the largest number and subtract the smallest number.
Answer:
13
Step-by-step explanation:
highest number is 60
lowest number is 47
60-47=13
The area of a square is 1800 in2, how long is each diagonal?
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Answer:
60 in
Step-by-step explanation:
The area of a square can be computed as ...
A = (1/2)d^2 . . . . where d is the length of the diagonal
For an area of 1800 in^2, the diagonal length can be found as ...
1800 in^2 = 1/2d^2
3600 in^2 = d^2
d = √3600 in = 60 in
The length of each diagonal is 60 inches.
help me plsss i need help
Answer:
1. = 2/3
2. = 5/7
3. = 2/3
Step-by-step explanation:
divide by 4 for 1
divide by 2 for 2
divide by 2 for 3
A computer password contains six characters but does not permit repetition of any characters (either letters or numbers). If uppercase and lowercase letters are used, how many possible passwords are there?
Answer:
[tex]\frac{62!}{56!}[/tex]
Step-by-step explanation:
We can either look at all 62 characters (2 * 26 in the alphabet and 10 digits), choose 6 of them, and add the fact that we care about their order - so multiply by 6! and we get [tex]\binom{62}{6}\cdot 6! = \frac{62!}{6!\cdot 56!} \cdot 6! = \frac{62!}{56!}[/tex]
Or, we can look atr all the permutations of all the characters and take into account that we DON'T care about the order of the 56 after the first six. Getting [tex]\frac{62!}{56!}[/tex] immediately.
.. Is the product of (-2.1)(3.7)(8)(4.5) positive or negative?*
Answer:
negative
Step-by-step explanation:
(-2.1)(3.7)(8)(4.5)= -279.72
2
The parabola y = x2 is scaled vertically by a factor of
3
What is the equation of the new parabola?
Answer:
Drop Out
Step-by-step explanation:
School Sucks
3=x2
2) As a wildlife biologist you are currently researching feral pigs in Texas and need to collect data to yield the average weight of a mature female feral pig in Texas. Which type of study is most suitable for data collection in this situation? A) experimental B) Census sampling Eliminate D) simulation
Answer:
Step-by-step explanation:
C sampling
The rate of healing, A′(t)(in square centimeters per day), for a certain type of abrasive skin wound is given approximately by the table.
t 0 1 2 3
A′(t) 0.91 0.83 0.76 0.69
t 4 5 6 7
A′(t) 0.62 0.58 0.48 0.44
Use left and right sums over five equal subintervals to approximate the area under the graph of A′(t) from t=0 to t=5.
The left sum, L5, is __________.
The right sum, R5, is ______________.
Answer:
Step-by-step explanation:
Given that:
t 0 1 2 3 4 5 6 7
A'(t) 0.91 0.83 0.76 0.69 0.62 0.58 0.48 0.44
a) [tex]\Delta x = \dfrac{5-0}{5}[/tex]
[tex]\Delta x = 1[/tex]
[tex]L_ 5= \Delta x ( (A'(0)+A'(1)+A'(2)+A'(3)+A'(4)) \\ \\ = 1 (0.91 + 0.83+ 0.76 +0.69 + 0.62 ) \\\\ L_5 =1( 3.81) \\ \\ \mathbf{L_5 = 3.81}[/tex]
[tex]R_ 5= \Delta x ( (A'(1)+A'(2)+A'(3)+A'(4)+A'(5)) \\ \\ = 1 ( 0.83+ 0.76 +0.69 + 0.62 +0.58) \\\\ R_5 =1( 3.48) \\ \\ \mathbf{R_5 = 3.48}[/tex]
The true statement:
[tex]Since, R_5 = 3.48 \ and \ L_5 = 3.81; \\ \\ Then : R_5 \le \int \limits ^5_0 A'(t) dt \le L_5[/tex]
a painter is paid by the hour if he is paid 360 for 12 hours work how much will he be paid for 9 hours work
Answer: $270
Step-by-step explanation:
1. calculate how much he's getting paid per hour
- 360 / 12 = $30
2. calculate how much he's getting paid for 9 hours
- 30 * 9 = $270
The amount he would be paid for 9 hours of work is 270.
How much would the painter be paid for 9 hours of work?The first step is to determin1 be how much the painter would be paid for 1 hour of work.
Pay for working for 1 hour = 360 / 12 = 30
The pay for 9 hours = 30 x 9 = 270
If there are 45 boys and 60 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
Answer:
45:60
45 to 60
45/60
Step-by-step explanation:
it's the 3 different types of ways to write a ratio
1. The population of an endangered species of bird is decreasing 15 percent each year. If there were originally 1,400 birds remaining,
how many are left after six years?
Answer:
528 birds
Step-by-step explanation:
100%-15%= 85% = .85
1400 (.85)^6
= 528
Draw regular polygons with the given number of sides. Then find the measure of one interior and exterior angle in each polygon. (For the drawing of regular polygons use bond paper or pad paper)
Measure of Interior /s Measure of Exterior /s
1. 4 sides __________________ _________________
2. 5 sides __________________ _________________
3. 8 sides __________________ _________________
4. 10 sides __________________ _________________
5. 12 sides __________________ _________________
pa help po ako
Answer:
1) 90 90
2) 108 72
3) 135 45
4) 144 36
5) 150 30
