Answers
Answer:
The answer is option
3 and 4
Related Questions
Many states assess skills of their students in various grades. One program that is available for this purpose is the NAEP. One of the tests provided by the NAEP assesses the reading skills of 12th grade students. In a recent year, the national mean score was 288 and the standard deviation was 38. Assuming the scores are approximately normal, give a range of scores that includes 99.7% of these students.
Required:
How high a score is needed to be in the top 25% of students who take this exam (use technology)?
Answers
Solution :
Given :
National mean score of the reading test that is conducted the NAEP = 288
Standard deviation of the score = 38
Therefore, P(X > x) = 0.25
P (Z > [tex]$\frac{x-288}{38} $[/tex] = 0.674)
[tex]$\frac{x-288}{38} = 0.674$[/tex]
[tex]$x=288+(38 \times 0.674)$[/tex]
x = 326.67
Therefore, the highest score that is needed for the students to be in the top of 25 percent among the students those who take the exam.
1) Dan ate 1/12 of a pumpkin, while Sandy ate 1/2 of a pumpkin. In total, how much pumpkin did these two eat?
Answers
Answer:
1 pumpkin
Step-by-step explanation:
1/2 + 1/2 is 1. They ate 1 pumpkin in total.
1/2+1/2( half + half)=1
you order items from a menu that total $10.75. your bill comes to $11.66, including tax. what is the percent of increase (tax)
i would love if someone can help me please it is due on the 19th
Answers
Answer:
-o.91
Step-by-step explanation:
first u - 10.75 by 11.66 and then u get the answer
Which of the following is most likely the next step in the series ?
Answers
Answer:
b
Step-by-step explanation:
it should be red because the colour is alternative
and next we should add a horizontal line
hence b is the next step
Answer:
I'm not sure but I guess the answer is option >D
Step-by-step explanation:
Desmond went to a concert with his three other friends and he decided to pay for the tickets and his friends would pay him back. The total of the tickets was $108. Write and solve an equation that will find how much it is for one ticket.
Answers
Riya buys 9 square paving slabs, each with a side of 1m. She lays them in the form of square.
(a) What is the perimeter of her arrangement?
Answers
Answer:
Step-by-step explanation:
The slabs are arranged in a 3×3 matrix. Each side is 3 m long. The perimeter is 4×3 = 12 meters.
please answer this
Answers
Answer:idl
Step-by-step explanation:
rjrng
+30-1
=29//
Answer=29
Hope this helps pal
Please mark me brainliest =)
On a United States map, 1 inch represents
240 miles. Using this scale, find the distance
represented by 3.5 inches.
AND
On a California map, 1 inch represents 150 miles. Using this scale, find the distance represented by 2.5 inches.
Answers
6. B
Steps on paper
suppose that the population of deer in a state is 16,000 and is growing 1%each year Predict population after 6 years
Answers
Answer:
16984
Step-by-step explanation:
Given
[tex]a = 16000[/tex] ---- Initial
[tex]r = 1\%[/tex] --- rate
Required
Determine the population after 6 years
To do this, we make use of the following exponential function
[tex]f(x) = a(r+1)^x[/tex]
Substitute values for a and r
[tex]f(x) = 16000(1\%+1)^x[/tex]
Express 1% and decimal
[tex]f(x) = 16000(0.01+1)^x[/tex]
[tex]f(x) = 16000(1.01)^x[/tex]
The population after 6 years is:
Substitute 6 for years
[tex]f(6) = 16000(1.01)^6[/tex]
[tex]f(6) = 16984.3224096[/tex]
[tex]f(6) = 16984[/tex] -- approximated
Chris received $50,000 from his grandparents as a graduation gift. So, he has decided to invest the money
to pay his living cost at a college, which is $3,000 a year. There are two options: a bond that pays 12% and
a CD that pays 5%. How much should he invest in the bond? [Please round your answer to 2 decimal places.]
Answers
Answer: $7142.86
Step-by-step explanation:
Let the amount to be invested in the bond be represented by y.
Based on this, the amount to be invested in the CD will be: = 50000 - y.
From the information given, yearly interest on bond is 12%, this will be:
= 12% × y = 0.12 × y = 0.12y
Also, interest on CD will be:
= 5% × (50000 - y)
= 0.05(50000 - y)
Then, the equation to get the amount to be invested in bond will be:
0.12y + 0.05(50000 - y) = 3000
0.12y + 2500 - 0.05y = 3000
0.12y - 0.05y = 3000 - 2500
0.07y = 500
y = 500/0.07
y = 7142.8571
y = 7142.86
The amount to be invested in bond will be $7142.86
Write the equation for the perpendicular bisector of a segment that has endpoints (1, –4) and (3, 2).
Answers
Answer:
y = -⅓x-⅓
Step-by-step explanation:
graph this inequality x ≤ 4
Answers
Answer:
Step-by-step explanation:
Graphing this equality would shade everything including and to the left of the vertical line x=4.
4 movie tickets cost $35, how many dollars per ticket
Answers
Answer:
140
Step-by-step explanation:
35 x 4= 140
the ratio of the angle measures of a triangle are 3:3:4 what angle measures the triangles classification
Answers
Step-by-step explanation:
sum of the ratio=3+3+4=10
now,
angle I = 3/10×180=54
angle II= 3/10×180=54
angle III=4/10×180=72
that shows th given triangle is isoceles
help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
"Playing video games has been shown to enhance memory and even increase brain volume"
Step-by-step explanation:
The claim is approves the usage of video games.
The first piece of evidence supports the usage, citing how video games can "enhance memory" which is positive.
The second piece of evidence does the opposite and disapproves video games, citing them as an "addiction" which is negative.
In the expression 710 , which number is the exponent?
A) 10
B) 70
C 7
D) None of the above
Answers
Answer:
A.10
Step-by-step explanation:
An exponent is a number or letter written above and to the right of a mathematical expression called the base.
x is the base and n is the exponent or power. Definition: If x is a positive number and n is its exponent, then xn means x is multiplied by itself n times.
the radius of a circle is 2 kilometers. What is the circles circumference. Use 3.14 for pie
Answers
Answer: 12.56
Step-by-step explanation:
Help plz:)))I’ll mark u Brainliest
Answers
4x+27/65 = 4x-3/39
39(4x+27) = 65(4x-3)
156x+1053= 260x -195
-104x = -1248
x= 12
Domain answers:
-The set of all real numbers from 0-60
-The set of all real numbers from 500-2000
-The set of all real numbers from 25-500
-{0,1,2,3...,500}
-{25,50,75,100,...}
-{60,61,62,63,...,2000}
Range answers:
The set of all real numbers from 0-60
-The set of all real numbers from 500-2000
-The set of all real numbers from 25-500
-{0,1,2,3...,500}
-{25,50,75,100,...}
-{60,61,62,63,...,2000}
Answers
Domain= "number of minutes water has been added" and the set of all real numbers would be from 0-60
Range= "amount of water in the pond(in liters) and the set of all real numbers from 500-2000
I hope this helps
I'm terribly sorry if this is wrong
Please help for instant brainliest.
Answers
Answer:
(8, -1)
Step-by-step explanation:
its the point of intersection
Answer:
D
Step-by-step explanation:
the following lines meet up at the poitn (8,-1) which is to answer d
hope this helps
Can u help me answer this?
Thanks!
Answers
Answer:
190 trees
Step-by-step explanation:
38% of the plantings in the garden are trees. There are 500 plantings.
So we are looking for 38% of 500.
To find the percentage of a number, convert the percentage to a decimal and multiply:
38%=0.38
500*0.38=190
Write a second inequality with the same meaning -12<= a
Answers
Answer:
a[tex]\geq[/tex]-12 or -48[tex]\leq[/tex]4a
Step-by-step explanation:
PLS HELP ME :)) i will mark brainliest!!!
Answers
Answer:
51 deg
Step-by-step explanation:
By corresponding parts of congruent polygons, <BAD is congruent to <FEH.
m<BAD = m<FEH = 51 deg
Answer: 51 deg
Answer:
51 degrees
Step-by-step explanation:
The answer is 51 degrees because the two pyramids shown are congruent which means that since we are given the degree measure of angle FEH then we can plug in that measure to find the measure of angle BAD. We can also use what we know about degrees to figure out that because angle CBA is equal to 129 degrees then angle BAD is equal to the difference between the measure of angle CBA and 180 degrees which is 59 degrees.
Marc sold 425 tickets for the school play. Student tickets cost $4 and adult tickets cost $5. Marc's sales totaled $1925. How many adult tickets and how many student tickets did Marc sell?
Answers
Explanation: We need a system of equations to find how many of each ticket Marc sold and we can use 4s+5a=1925 and s+a=425.
If we isolate a, we will have a=425-s
If we plug this into the first equation, we will get 4s+2125-5s=1925
Solving for s gives us s=200.
To find a, we can do 425-200 to find that a=225.
What is 1/7 of 28% of 8,000
Answers
Answer:
320
Step-by-step explanation:
A=1/7 * .28 *8000 = 320
Answer: 320
Step-by-step explanation: 1/7*28 of 8000
Evalua la siguiente
expresión algebraica si
X=3 Y=2
3x + 4y =
Answers
Answer:
3x + 4y = 17
Step-by-step explanation:
Espero y te haiga ayudado :)
can somebody help me with this homework?
Answers
Answer:
121.1/1.6%
Step-by-step explanation:
subtarct the given numebrs to get 121.1
Divide 123.06 from 121.1, multiply by 100, and you have 101.6, rate of change take away the hundred value to get 1.6%
Hope this helps and makes sense
Can you show me the steps that you took to get the answer for this question?
Answers
If measure of 1 + measure of 2 = 90
And measure of 1 = x
And measure of 2 = x - 4
You would have the equation of
X + X - 4 = 90
So then you combine like terms
2x - 4 = 90
Then you add 4 on both sides
2x - 4 = 90
+ 4 + 4
2x = 94
Then you divide by 2 to get x alone
And x = 47
Darby bought a rare baseball card for $2,000. Three years later, the value of the card had increased 35% of its original value. By how much did the value of Darby’s baseball card increase?
$___
Answers
================================================
Work Shown:
35% = 35/100 = 0.35
35% of 2000 = 0.35*2000 = 700
Since the card increased by 700 dollars, this means the card is now worth 2000+700 = 2700 dollars.
While rolling, a wheel with a diameter of 13/2m makes 196 revolutions. Find the distance that is traveled by the wheel. Use for 22/7 for pi
Answers
Answer:
9.6 m
Step-by-step explanation:
let 'x' be distance traveled
196 = 3.14(6.5)x
196 = 20.41x
x = 196/20.41
x = 9.6
