Full question:
Suppose SAT scores among students are normally distributed with a mean of 500 and a standard deviation of 100.
If a college says it admits only people with sat scores among the top 10%. how high a sat score does it take to be eligible?
Answer and explanation:
To find where SAT score of student falls in the test given mean and standard deviation of scores, we can calculate: x-500/100 where x is number of SAT score of students
A sat score in the top 10% region would have a score better than 90% of other SAT scores. Therefore 0.90 has a z score of 1.28
We use algebra to find the score to be eligible thus:
1.28=x-500/100
x-500=128
x=128+500
x=628
Therefore to be eligible, a student needs to score at least 628, and be in the top 10% of scores
Cara used the order of operations to evaluate the expression below. 4(7-13) +(-4)2 – 2(6-2) 3 28-13 3 +(-4)2-2(4) 15 3 + 16-8 5+ 16-8 13 What was Cara's first error? Cara did not evaluate 7-13. O Cara did not evaluate (-4)2. Cara subtracted 2 from 6 incorrectly. Cara multiplied 2 and 4 incorrectly.
Answer:
Step-by-step explanation:
C
Answer:
It is A
Step-by-step explanation:
please help me please i really need help
Answer:
Step-by-step explanation: It you start by getting rid of the 1/2x+1/2x it makes x=x/1. X/1 is x so x=x. X can be anything!
help please what type of angle is this, and what is x?
Answer:
50 Pick me brainliest
Step-by-step explanation:
Answer:
x = 50
Step-by-step explanation:
These angles are vertical angles. Vertical angles are congruent to each other. Therefore, 3x° = (2x+50)°
Subtract 2x from each side.
x=50
The cost of a bagel increased from $0.55 to $0.75. What was the percent of increase? If necessary, round your answer to the nearest tenth of a percent.
Answer:
14
Step-by-step explanation:
add 4+10
4/5 as an equivalent fraction in 3 different forms
Answer:
4/5=8/10=16/15=20/30
Step-by-step explanation:
there you go may u help me on my question now pls i rlly need help.
Find the measure of the missing angle
Answer:
angle a = 90° - 48 ° = 42° okay
I need help, pls !!!
Answer:
D) 11.2 Orange
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-8, -1)
Point (-3, 9)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute [DF]: [tex]\displaystyle d = \sqrt{(-3+8)^2+(9+1)^2}[/tex]Add: [tex]\displaystyle d = \sqrt{(5)^2+(10)^2}[/tex]Exponents: [tex]\displaystyle d = \sqrt{25+100}[/tex]Add: [tex]\displaystyle d = \sqrt{125}[/tex]Simplify: [tex]\displaystyle d = 5\sqrt{5}[/tex]Evaluate: [tex]\displaystyle d = 11.1803[/tex]Round: [tex]\displaystyle d = 11.2[/tex]Given x/5 + 6 > 21, what is the solution for x?
Answer: x>75
Step-by-step explanation:
Simplifying both sides of the inequality then isolating the variable
Suppose that out of 10 trees planted in a yard, only five survived. What kind of hypothesis could you make about this observation or event
Answer: The condition to which the trees were exposed played a part in their inability to survive.
Step-by-step explanation:
From the report given in the question, we can hypothesize on a number of grounds as to why only 5 of the 10 trees survived. Hypothesis is very common in statistical parlance as it could be referred to as a claim about a particular event which is only inferred and has not been proved either wrong or right. This hypothesis or claim are further scrutinized or tested in other to establish a fact or validity of the claim. Hence, we could infer that the reason why only 5 of the trees planted survived is due to harsh weather condition. However, this claim will be subjected to further test before establishing the truth or significance of the hypothesis.
Evaluate the expression you got in part d for b = 8.
Answer:
b/2-3
8/2-3(substituting B=8)
8/-1
-8
Step-by-step explanation:
eheh
Can someone please solve this and explain how to solve it with all the steps
Answer:
here this should be the answer
it is January 17th 2021
The stock market dropped 220 points on Monday. It lost another 48 points on Tuesday, and on Wednesday, it gained 96 points. What was the amount of change over those three days.
Request you to finish this please
48 points gained in those 3 days.
Subtract 220 with 48, then add 96. Last step would be subtracting 220 with the amount they have now in those 3 days to find how much points the stock market gained in those 3 days.
Subtract 220-48.It‘ll be 172.
Add 172 with 96. 172+96=268.
Subtract 268 with how much points the stock market had 3 days ago. 268-220.
Sot eh stock market gained 48 points in 3 days.
at a pumpkin patch celeste bought a pumpkin that weighed 5,585 grams how many kilograms did the pumpkin weigh
Answer:
5.58
Step-by-step explanation:
What is the slope of the linear function
graphed below?
Answer: C
Step-by-step explanation:
Solving a System of Linear Equations: Substitution
The tables represent two linear functions. The equation represented by the first table is given below. y = 5.75x + 34.5 What linear equation is represented by the second table? What is the solution to the system of equations?
(Please explain with directions on how to do the equation!)
Answer:
where is the picture of the tables
Bernard is 5 years younger than twice Mitchell’s age. How old is Mitchell if the total age is 35 years old?
Answer: 0<x<10
Step-by-step explanation:
Kimberly buys a jar of fruit punch
mix. The jar holds 15 ounces of
powder. If she uses 1 ounce a day.
how long will the jar last?
Answer:
the jar will last for 15 days
S2=1/(1)(2)+1/(2)(3)
Answer:
1/(1) (2) +1/(2) (3)
=1/2+1/6
=3
I don't understand can someone help me PLZ
Answer:
1/2
Step-by-step explanation:
the circle has 8 pieces so that's how you get the denominator
you count how many A's there are and that is your numerator
so now 4/8 and reduce to get a half
A local animal rescue group received a number of $10 donations (D) for its annual drive. Suppose the total of the donations (T) reached $930. Which equations apply to this situation?
Answer:
&80/yt5
Step-by-step explanation:
E
Between the ages 2 and 20, the weight W of an American boy is logistic function of his age. For boys at the 50 percentile, the differential equation for W can be approximated by 4W = 0.0008W (216 - W), where W is measured in pounds and t is measured in years beyond the age of 2. Express W as a function of t subject to the initial condition W(0) = 24
Answer:
rthtrhthrrgrg4432
Step-by-step explanation:
rthrthtrhtrhr242 42
The ratio of red marbles to blue marbles in Simran's bag is equal to 1 to 1. If there are 20 red marbles, how many blue marbles are there?
Answer:
There has to be 20 blue marbles
Step-by-step explanation:
The ratio is 1:1, so to be equal we must replace 1 with 20 on both sides.
Answer:
20
Step-by-step explanation:
1/1 = 1
20/x = 1
x=20
1490 thousand help me get that number because I can't find them
Answer:
1,490,000
Step-by-step explanation:
Answer:
1490000?
Step-by-step explanation:
A cookie recipe calls for 1 cup of flour to make 24 cookies. How many cups of flour are needed to make 30 cookies?
A
0.8
B
1.25
с
7.2
D
720
Answer:
b. 1.25
Step-by-step explanation:
30 / 24 = 1.25
so u take
1.25 * 1 = 1.25
PLEASE HELP its multiple choice i’ll mark brainliest and i added a couple points
Answer:
i think it the third one but i don't know i'm not in collage math class so...
Step-by-step explanation:
A recent report indicated that 22 percent of the households in a certain community speak a
language other than English at home. A reporter will randomly select a household from the
community until the first houehold that speaks a language other than English at home is
selected. Let random variable Q represent the number of attempts needed until the first
household that speaks a language other than English at home is selected. The random variable
Q has a geometric distribution with p = 0.22. Which of the following is closest to the variance
of the random variable?
Answer:
16.1157
Step-by-step explanation:
The random variable Q has a geometric distribution with p = 0.22. The variance of the random variable will be 16.1157.
What is the variance of the random variable?A spread measure for a random variable distribution quantifies how much the values of a random variable deviate from the value that is predicted.
For a discrete random variable, the variance is determined by adding the square of the difference between the value of the random variable and the anticipated value, together with the chance that the value of the random variable will occur, across all of the values of the random variable.
It is given that 22 percent of people in the community speak a language other than English at home.
The required number of tries should be represented by the random variable Q.
The geometric distribution of the random variable Q has a p-value of 0.22.
The variance of a random variable is
V(Q) = (1-p)/p²
V(Q) = (1-0.22)/(0.22)²
V(Q) =0.78/0.484
V(Q) =16.1157
Thus, the random variable Q has a geometric distribution with p = 0.22. The variance of the random variable will be 16.1157.
Learn more about the variance of the random variable here,
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Please help ASAP !! Via the photo below
Answer:
y-3 = -4 (x-1)
Step-by-step explanation:
y= -4x - 5
In slope-intercept form, they give us the slope, -4, and the y-intercept, -5 (we don't need for point-slope form).
Use the point (1,3) and substitute it into the equation.
Point-slope form: y-y1 = m(x-x1)
y-3 = -4 (x-1)
What is the ratio of oranges to apples? Write it as a fraction?
We could simply the ratio to?
Answer:
See below.
Step-by-step explanation:
3.)
There are 4 oranges and 6 apples so the fraction would be 4/6 which we can reduce to 2/3.
a.) As we stated beforehand, the fraction was 2/3. That means for every 2 oranges, there are 3 apples.
b.) We did this already. 4/6 was reduced to 2/3.
Find m∟1 and m∟2. Tell which theorem can be use
Answer: Angle 1 = 150 - corresponding angles
Angle 2 = 150 - alternate exterior angles
Step-by-step explanation:
To find the measure of angles ∠1 and ∠2, we are using vertical angle theorem and corresponding angles concept.
From the given figure measure of one of the angle is 150°.
What are angles of parallel lines?Angles in parallel lines are angles that are created when two parallel lines are intersected by another line called a transversal.
Corresponding angles are angles that occur on the same side of the transversal line and are equal in size. They are either both obtuse or both acute.
Here, ∠1 = 150° (Corresponding angles)
∠1 =∠2 = 150° (Vertically opposite angles are congruent)
To find the measure of angles ∠1 and ∠2, we are using vertical angle theorem and corresponding angles concept.
To learn more about the vertical angle theorem visit:
https://brainly.com/question/8119520.
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