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Twenty-eight students are taking the WIDA test this Friday in A209. Twenty-two of them are taking Tier A test. The rest are taking Tier B test. How many students are taking the Tier B test?
Answer:
6
Step-by-step explanation:
6 students are taking the b test because if you subtract 22 from 28 you get 6
Can someone please answer B (PICTURE)
Answer:
The question is asking for the perimeter. There are three ways to answer this depending on the assumptions though so I'll let you choose.
Assumptions are basically the different scenarios
1st scenario being the trim covers the carpet and the tile, they'd need 48m of trim (12+12+4+8+8+4)
2nd scenario in which the trim covers the carpet but not the tiled area, they'd need 44m of trim (12+12+4+8)
3rd scenario where the trim only covers the the tiled area, 4m of trim
(just 4 since the tile only touches 4m of the wall)
Hope this helps!
Step-by-step explanation:
trim is just the perimeter since it covers the base of the wall
Write the following as an inequality.
x is greater than or equal to - 7 and less than or equal to 4
Use x only once in your inequality.
Answer:
4 ≤ x ≥ -7
I think this is right. I'm not 100% sure! But maybe it will help :)
Answer:
x ≥ -7 ≤ 4
Step-by-step explanation:
how YOU LIKE ME NOW !
Answer:
im confusedddddddd.................
Addison is going to invest in an account paying an interest rate of 3.1% compounded continuously. How much would Addison need to invest, to the nearest dollar, for the value of the account to reach $910 in 18 years?
Answer: $521
Step-by-step explanation:
1. Suppose X~N(30, 144). That is, X has a normal distribution with ?=30 and ?2=144.
1a. Find a transformation of X that will give it a mean of zero and a variance of one (ie., standardize X).
1b. Find the probability that 18
1c. Supposing Y=10+5X, find the mean of Y.
1d. Find the variance of Y.
X has a normal distribution, X that will give it a mean of zero and a variance , then the mean of Y = E(10+5X) = 1020
The variance is a measure of variability. It is calculated by taking the average of squared deviations from the mean. Variance tells you the degree of spread in your data set. The more spread the data, the larger the variance is in relation to the mean.
Given that,
E(x) = 30
Var(x) = 144
E(y) = ?
Var(y) = 144
Then,
E(10+5X)
To do this, we make use of the following equation
E(ax + by) = a E(x) + b E(y)
E(10+5X) = 10 E(x) + 5 E(y)
E(10+5X) = 10*30 + 5*144
E(10+5X) = 300 + 720
E(10+5X) = 1020
Therefore,
X has a normal distribution, X that will give it a mean of zero and a variance , then the mean of Y = E(10+5X) = 1020
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Can someone pls help me out
___________
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\(\boxed{ \rm{answer \: by \: { \boxed{ \rm{☆HayabusaBrainly}}}}}\)
This is Question no picture, soo iam work in question before^^
Step by step :x² = 12² + 10²
x² = 144 + 100
x² = 244
x = 15,6m✔
factorise x²-49
please solve this answer
Answer:
(x+7)(x-7)
Step-by-step explanation:
x²-49
=x²-7²
=(x+7)(x-7)
Answer:
(x+7) (x-7)
Step-by-step explanation:
\(\sqrt x^{2}\)-49
\(\sqrt x^{2}\) - \(\sqrt{49}\) = (x+7) (x-7)
help i will give alot of points
According to the information, the surface area of the prism is 3200 square meters.
How to find surface area of the prism?To find the surface area of the prism, we need to add up the areas of all its faces.
The prism has 2 triangle sides with a height of 15m and a base of 40m. The area of each triangle can be calculated using the formula A = 1/2 × b × h, where b is the base and h is the height of the triangle. So, the total area of these two triangles is:
A = 2 × 1/2 × 40m × 15mA = 600m^2The prism also has 2 triangle sides with a height of 25m and a base of 40m. The total area of these two triangles is:
A = 2 × 1/2 × 40m × 25mA = 1000m^2Finally, the prism has 2 rectangular sides with a height of 40m and a base of 40m. The area of each rectangle is simply the product of its height and base, so the total area of these two rectangles is:
A = 2 × 40m × 40mA = 1600m^2To find the total surface area of the prism, we add up the areas of all its faces:
Total surface area = 600m^2 + 1000m^2 + 1600m^2Total surface area = 3200m^2Therefore, the surface area of the prism is 3200 square meters.
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Kylie recorded the number of squats she could do on each day of her training is the relation a function explain?
Answer:
The second one
Step-by-step explanation:
Yes. Each input (day) has exactly one output (number of squats). (I think lol)
A group of 45 students went to a basketball game.
Each student bought a candy and a popcorn. Write 2
equivalent expressions to represent the total spent at
the basketball game.
Answer:
See below. (C*a) + (P*b) = M
Step-by-step explanation:
amount of students = 45
amount of candy per student = 1
amount of popcorn per student = 1
Let "S" be the total amount of students
Let "C" be the total amount of candy
Let "P" be the total amount of popcorn
Let "T" be the total number of snacks
Let "a" be the price per candy
Let "b" be the price per popcorn
Let "M" be the total amount of money spent at the game
The price of the candy is unknown.
The price of the popcorn is unknown.
The total amount of money spent at the game is unknown.
(C*a) + (P*b) = M
I am not sure what you are asking for but, here is what I drew up for you. Hope this helps!
help and please explain
The points are basically numbers and use those points to help you figure out which equation is true or in you case best models the graph.
Answer:
Option (D) is correct
Step-by-step explanation:
Hope this helped if so please leave a rating! :)
THANKS
Paul & Malachy share a lottery win of £2750 in the ratio 2 : 3. Paul then shares his part between himself, his wife & their son in the ratio 5 : 4 : 1. How much more does his wife get over their son?
Answer:
£330
Step-by-step explanation:
The total ratio between Paul and Malachy is 2 + 3 = 5.
The amount that Paul will receive is:
2/5 * 2750 = £1100
The second ratio is between Paul, his wife and their son in the ratio 5:4:1. The total ratio between Paul, his wife and their son is:
5 + 4 + 1 = 10
The amount that Paul's wife will receive is:
4/10 * 1100 = £440
The amount that their son will receive is:
1/10 * 1100 = £110
Therefore, the amount that the wife will receive over the son is:
440 - 110 = £330
Please answer correctly !!!!!! Will mark brainliest answer !!!!!!!!!!!
Answer:
Step-by-step explanation:
Take you ruler and draw a horizontal line from point (0,-2)
When you do, the point where y = -2 is when x = - 3
Answer:
x = -3
Step-by-step explanation:
the question asks for what x the function = -2
if you imagine horizontal line passing through -2 then you cann see that it crosses graph when x = -3 and 0
If AB = 2, AD = 5, and DE = 6, what is the length of ?
2.5
2.7
2.4
2.3
Please help
The length of BC in this problem is given as follows:
BC = 3.6.
What are similar triangles?Two triangles are defined as similar triangles when they share these two features listed as follows:
Congruent angle measures, as both triangles have the same angle measures.Proportional side lengths, which helps us find the missing side lengths.The similar triangles for this problem are given as follows:
ABC and ADE.
Hence the proportional relationship for the side lengths is given as follows:
3/5 = BC/6.
Applying cross multiplication, the length BC is given as follows:
BC = 6 x 3/5
BC = 3.6.
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From the equation y=3.5x identify the constant of proportionality
Answer:
3.5
Step-by-step explanation:
Answer:
3.5
Step-by-step explanation:
y = kx is the equation of direct variation where k is the constant of proportionality
FILL IN THE BLANK. Overall, available research suggests jurors exposed to pretrial publicity are ________________ to favor the ________________.
Answer:
Overall, available research suggests jurors exposed to pretrial publicity are more likely to favor the prosecution.
Tiffany enters a raffle in which 400 people each pay $1 to enter. There will be eight random drawings with one $100 winner, two $25 winners, and five $10 winners. In the form of gains or losses, what is the expected profit?
Answer:
$200
Step-by-step explanation:
If tickets cost $1/ticket then it'll be $400 for all the tickets combined. If you add all the winners up then you will get $200 that is given back to them.
For example:
1 $100 winner =$100
2 $25 winner =$50
5 $10 winners =$50
All together it will add up to $200
So then we do the prize money minus our starting cost which is $400-$200. Which equals $200. You will give back $200 as prize money, and then $200 is a profit you will keep.
HELP ME I WILL GIVE 20 POINTS PLS
the given proportional relationship y=0.5x with proportional constant is 1/2.
what is proportional relationship?
When two variables are correlated in a manner that their ratios are equal, this is known as a proportional relationship. In a proportional connection, one variable is always a constant value multiplied by the other, which is another way to think of them. The "constant of proportionality" is the term used to describe that constant.
Given x and y will have a proportional relationship if the ratio of x to y will be equal for all given values.
For every 1 scoop of ice cream, cup of milk is needed 1/2, and for every 5 scoops of ice cream, 2 cups of milk 2 1/2 are needed.
So the equation will be y = kx
or y = 0.5(x)
Here proportional constant is 1/2 or 0.5.
For 18 scoops of icecream, milk will be needed is 18/2 = 9 cups of milk.
Hence, we can say that the given proportional relationship y=0.5x with a proportional constant is 1/2.
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Triangle LMN isosceles,
Answer:
In the given figure, Triangle LMN is an isosceles triangle with angle m = angle n and angle p bisects angle NLQ. Prove that angle P is parallel to MN.
Can you please help me with this
The answer is 63
Glad I could help :)
Answer:
117
Step-by-step explanation:
angle 2 is a vertical angle to 63. This means that it is equal to 2. So angle two is 63 degrees.
angle 2 and 7 add up to 180 degrees. You know that angle 2 is 63 degrees. So you do 180-63 degrees which leaves you with 117 degrees. Angle 7 is 117 degrees.
angle 5 and 7 are also vertical angles. Which means 5 is also equal to 117.
The answer is 117 degrees.
Sub :- Linear Equations
Hiiiiiiiiiiiii
The value of x is 1 & y is 2 (a).
Steps are attached.
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꧁✿ ᴿᴬᴵᴺᴮᴼᵂˢᴬᴸᵀ2222 ✬꧂
How many students answered exactly two questions incorrectly
Step-by-step explanation:
you didn't post the questions yk?!
professor smith ran a simple regression equation using midterm exam scores to predict final exam scores. the r square was 0.91 and this was statistically significant (p
The the final exam score according to the linear equation is 69. Thus, Option A is correct.
According to the statement
we have to find that the exam of the midterm which is Y with the help of the given equation.
So, For this purpose, we know that the
The value of p is 0.0001 and the given equation is Y=1.5 + .9(75).
Which is a linear equation.
So,
A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.
So, From given equation
Y=1.5 + .9(75).
Solve this equation
Y = 1.5 + 67.5
Y = 69.
So, The the final exam score according to the linear equation is 69. Thus, Option A is correct.
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Disclaimer: This question was incomplete. Please find the full content below.
Question:
Professor Smith ran a simple regression equation using midterm exam scores to predict final exam scores. The R square was 0.91 and this was statistically significant (p=0.0001). Using the following simple regression equation generated by Professor Smith, predict the final exam score Y when the midterm score is 75: Y=1.5 + .9(75).
A. 69
B. 55
C. 82
D. 91
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If TU=z+9 and VX=z–41, what is VX? Picture down below.
Answer:
VX=50
Step-by-step explanation:
VX=\(\frac{1}{2} *UT\) (The straight line joining the mid points of two sides of a triangle is parallel to the third side and equal to half of it.
\(z-41=\frac{1}{2} *z+9\)
\(z-41=z+9/2\)
do cross multiplication
2(z-41)=z+9
2z-82=z+9
2z-z=9+82
z=91
VX=z-41
=91-41
=50
In the college class, there were 15 students that came to the review class before the test. This was 30% of the students in class. How many students were in the class, altogether?
Answer:
30 students
Step-by-step explanation:
The 15 students that came were 30% of the class:
30% = 15 students
To find 100%, we can first find 10% by dividing both sides by 3
10% = 3 students
(30% ÷ 3 = 10%, 15 ÷ 3 = 5)
Then, multiply both sides by 10 to get 100%
100% = 30 students
(10% × 10 = 100, 3 × 10 = 30)
Find m
160
260
50
80
An electrician earns $950 per week. How much will the electrician earn in 3 weeks?
Answer:2850
Step-by-step explanation: 950*3
12. An online clothing company sells custom sweatshirts. The company charges $6.50 for each sweatshirt and a flat fee of $3.99 for shipping.
a. Write a linear function in the form y = mx + b that represents the total cost, y, in dollars, for a single order of x sweatshirts.
b. Describe how the linear function would change if the shipping charge applied to each sweatshirt.
Answer:
a. y = 6.5x + 3.99
b. y = 10.49x
Step-by-step explanation:
a.
total cost = charge per shirt + flat rate of shipping
y = 6.5x + 3.99
b.
total cost = charge per shirt + shipping charge per shirt
y = 6.5x + 3.99x
y = 10.49x
If the shipping charge applies to every shirt, then the total cost is the cost of the shirts (6.5x) plus the cost of shipping multiplied by the number of shirts (3.99x)
there are four multiple-choice questions on an exam, each with three possible answers. (a) determine the number of possible answer sequences for the four questions. (b) if you do not know the answers and are guessing, what is the probability of getting all four answers correct? (round your answer to five decimal places.) (c) if you do not know the answers and are guessing, what is the probability that you will answer at least one question out of four correctly? (round your answer to five decimal places.)
(a) There are 81 possible answer sequences for the four questions.
(b) The probability of getting all four answers correct when guessing is approximately 0.01235 when rounded to five decimal places.
(c) The probability of answering at least one question correctly when guessing is approximately 0.51775 when rounded to five decimal places.
(a) Since there are three possible answers for each of the four questions, there are a total of 3^4 = 81 possible answer sequences for the four questions.
(b) If you are guessing on each question, the probability of getting one question correct is 1/3. Since there are four questions, the probability of getting all four correct is (1/3)^4 = 1/81, which is approximately 0.01235 when rounded to five decimal places.
(c) The probability of not getting any question correct is (2/3)^4, since there are two incorrect answers for each question and we are guessing on all four questions. Therefore, the probability of getting at least one question correct is 1 - (2/3)^4, which is approximately 0.51775 when rounded to five decimal places.
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