Using the histogram, it is found that about 10% of students took less than 40 minutes to complete the exam.
What is an histogram?An histogram is a graph that shows the number of times each element of x was observed.
Researching the problem on the internet, it is found that the histogram states that:
One student completed the test in less than 10 minutes.Two students took between 30 and 40 minutes to complete the test.10% of 29 is approximately 3, hence about 10% of students took less than 40 minutes to complete the exam.
More can be learned about histograms at https://brainly.com/question/25836450
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is this right?????? or not if it's not what's the correct answer (mark brainiest)
Answer:
Yes.
Step-by-step explanation:
You always do the operations in parenthese first.
"The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)." -khanacademy . org > ...> order of operations
Answer:
B. (20 ÷ 4 - 2 + 1)
Solved, the equation equals 29.
Step-by-step explanation:
Order of operations: PEMDAS
Parantheses
Exponents
Multiplication
Division
Addition
Subtraction
9 + 5 × 2(20 ÷ 4 - 2 + 1)
The first step would be to do the operations inside the parantheses.
9 + 5 × 2(20 ÷ 4 - 2 + 1)
So,
(20 ÷ 4 - 2 + 1)
There are several operations, so lets look at PEMDAS again..
Okay, so we dont have any exponents, or multiplication inside the parantheses, so next step is divide.
(20 ÷ 4 - 2 + 1)
20 ÷ 4 = 5
So, we replace '20 ÷ 4' with '5'
(5 - 2 + 1)
Next, we add.
(5 - 2 + 1)
2 + 1 = 3
Now, replace '2 + 1' with '3'
(5 - 3)
Now, we just subtract 3 from 5.
5 - 3 = 2
So now our equation looks like this:
9 + 5 × 2(2)
Now, we have to do the parantheses again. But this time we are going to treat the parantheses as a multiplication symbol:
9 + 5 × 2(2) → 2 × 2 = 4
↓
9 + 5 × 4
Now, we have to multiply.
9 + 5 × 4 → 20
↓
9 + 20 = 29
So, when you solve the equation, you get 29.
Find the measure of the angles.
3
62
mZ1 =
mZ2 =
Answer:
Step-by-step explanation:
Help asap due in an hour
Answer:
7. x-2y=-4
-x-y=-5
x-2x=-4
2x+2y=10
Step-by-step explanation:
sorry cant do the rest im sleeping now but use symbolab just add the equations there and easy good night
Select the correct answer from each drop-down menu.
Which data set has a greater spread? Why?
Set A: {38, 12, 23, 48, 55, 16, 18}
Set B: {44, 13, 24, 12, 56}
has a greater spread because
.
Reset Next
Answer:
B
Step-by-step explanation:
B because range of set B is more than set A
range B=56-12=44
range A=55-12=43
\frac{x^2+9x+14}{x^2+10x+16}
x
2
+10x+16
x
2
+9x+14
Answer:
(x+7)(x+2)
(x+2)(x+8)
Step-by-step explanation:
PLEASE MARK ME AS BRAINLIST
Ursula is starting a new national network of science fiction book clubs. The establishment and expansion of the network is as follows. The original network began with eight people in each club and four clubs in each of two states. Every month, the number of people in each club increases by two and the number of clubs in each state grows by one. The number of states where the groups exist also increases by one every month. The total number of people in the network of book clubs is represented by the expression below, where x is the number of months since the clubs were established.
Using derivatives, it is found that the correct option is given by:
A. The expression 2x² + 20x + 32 represents the average rate of increase in the total number of clubs in the network across all states.
What is the meaning of the derivative of a function?It is the rate of change of the function over a period of time.
In this problem, the total number of people in the book club after x months is given by:
f(x) = 2x³ + 20x² + 64x + 64
The derivative is given by:
f'(x) = 4x² + 40x + 64 = 2(2x² + 20x² + 32).
It represents the average rate of change across all states, hence option A is correct.
More can be learned about derivatives at https://brainly.com/question/2256078
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Which of the following addition problems yields a sum that is an irrational number? Select TWO that apply. (answers in picture)
Answer:
probably the answer to the following question is B and C I hove this helps because this numbers cannot be fraction only decimal
Maddy has a coupon for bananas. Bananas normally
cost $0.49 per pound. Maddy wants to buy 8
pounds of bananas for her team. She has a coupon
for 5 cents off per pound.
If she uses the coupon, how much will she pay?
Answer:
$3.52
There are two ways you can solve this problem.
1. Take 5 cents off before multiplying.
Since the coupon takes 5 cents off per pound, you can subtract 5 cents off 49 cents.
$0.49-$0.05= $0.44
Now multiply $0.44 by the 8 pounds.
$0.44 (8) = $3.52
2. Take the 5 cents off after multiplying
You can multiply the 5 cents by 8, to find the total money off the bananas. Then subtract that from the total cost.
$0.49 (8) = $3.92 -> Total cost with no coupon
$0.05 (8) = $0.40 -> Total money off
Subtract the two totals.
$3.92 - $0.40 = $3.52
Answer:
I believe the answer is 3.42.
i do not know this answer
Answer:
9 millimeters is the answer.
Is FGH ~ JKL? If so, identify the similarity postulate or theorem that applies.
Answer:
It is similar by AA
Step-by-step explanation:
AA stands for angle-angle. In similar figures, angles are congruent, and the sides are proportional. the corresponding angles are the same. Hope this helps!
Find the circumference of each circle. Use 3.14 or 22/7 for π. Round to the nearest tenth if necessary.
I'm going to keep asking because I have no clue how to solve these
Answer:
219.8 yd
Step-by-step explanation:
Circumference Formula= πd or 2πr
Plug in the values. The diameter of this circle is 70 yds.
70(3.14) (replace 3.14 for π)
70*3.14=219.8 yds
Hope this helps ^^
An electronics store has determined that 45% of its customers buy a wide-screen television. describe the model that you could use to find the experimental probability that the next three television-buying customers will buy a wide-screen television
The model that you could use to find the probability is a binomial model with parameters n = 3, X = 3 and p = 0.45.
For each TV bought, there are only two possible outcomes, either it is wide screen, or it is not. The probability of a TV bought being wide screen is independent of any other TV, hence the binomial distribution is used to solve this question.
What is the binomial probability distribution?It is the probability of exactly x successes on n repeated trials, with p probability of a success on each trial.
In this problem:
45% of its customers buy a wide-screen television, hence p = 0.45.The experimental probability that the next three television-buying customers will buy a wide-screen television is P(X = 3) when n = 3.More can be learned about the binomial distribution at https://brainly.com/question/24863377
Can someone please help me solve this? or at least explain how I would go about solving this?
Answer:
find the probaillity of each one.
Step-by-step explanation:
In a school of 450 students, 110 of them are in the choir, 240 of them are in the band and 60 students are in the choir and the band
Answer:
whats rhe question itdoesntsay
How do i Write (3x^3)^2 WITHOUT exponents
Answer:
(3x³)² = 9x⁶ = 3 × 3 × x × x × x × x × x × x
Thus, The answer is
3 × 3 × x × x × x × x × x × x
Answer:
3 * 3 * y * y * y * y * y * y
Step-by-step explanation:
(3y³)²
Multiply 3 by 3 and y six times
3 * 3 = 9
y * y * y * y * y * y
The answer should be
3 * 3 * y * y * y * y * y * y
I hope this helps!
The problem is the screenshot
Answer: 0 5 10
Step-by-step explanation:
y = 5(0)
y = 0
y = 5(1)
y = 5
y = 5(2)
y = 10
What is the equation of the line that passes through the point (- 2, - 1) and has a slope of 5/2
Answer:
[tex]equation \: of \: a \: line \\ y - y1 = m(x - x1) \\ y - ( - 1) = \frac{5}{2}(x - ( - 2)) \\ 2(y + 1 )= 5(x + 2) \\ 2y + 2 = 5x + 10 \\ 2y - 5x - 8 = 0[/tex]
Find the equation of the line.
Use exact numbers.
Answer:
y=0.5x-6
Step-by-step explanation:
check out the attached photo
Answer:
y=0.5x-6
Step-by-step explanation:
3 km is greater or less than 5,000 m
Answer:
less
Step-by-step explanation:
3 km is 1.864 miles therefore, less than 5,000 m
I Need Help! Please!
Alex is only paid commission on his sales at Juniper Motor Company. In November, Alex earned $21,563 on his total sales of $204,865.
What is his rate of commission?______% ( Round to the nearest tenth of a percent)
Answer:
its 10.5
Step-by-step explanation:
If you divide what alex earned by his total sales, you get 10.5%.
please help :) thank u
Answer:
Already answered
Step-by-step explanation:
go to this
https://brainly.com/question/11412750
There is an answer by a tutor there better than me telling you
The measure of angle 'y' which is a corresponding angle is 62°
What is a triangle?A triangle is a three-sided closed-plane figure formed by joining three noncolinear points.
Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.
We know the midsegment of a triangle is parallel to one side of a triangle.
And parallel lines form similar corresponding angles.
Therefore, From the given figure the midsegment 'z' forms similar corresponding angles to x and y which are, 31° and 62°.
learn more about midsegments of triangles here :
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Which sign completes each expression?
0.3
>
0.25
0.35
0.4
0.05
0.1
Answer:
Below
Step-by-step explanation:
0.3>0.25
0.35<0.4
0.05<0.1
Pls help! This is my question..
A sample of iron has dimensions of 2 cm x 4 cm x 6 cm and a mass of 100g. What is the density of the sample?
What do we know:
the dimensions ⇒ can help us find the volume, area, surface areamassWhat do we want to find ⇒ Density
To solve that,
⇒ must find the relationship between density, mass, and volume
Definition of density: mass per unit volume⇒ Density = mass / volume
Now let's convert some units to make it into a standard answer:
mass = 100g ⇒ 0.1 kg (1000g = 1kg)volume = 2 * 4 * 6 = 48 cubic centimeters = 0.000048 cubic meter(1 cubic meter = 1000000 cubic centimeter)
⇒ Density = 0.1 / 0.000048 = 2,083.33 kilograms per cubic meter
Hope that helps!
A trapezoid has an area of 151.2 square centimeters. One base is 8.8 cm long. The height measures 10.5 cm. What is the length of the other base?
Answer:
x=20
Step-by-step explanation:
(1/2)*10.5*(8.8+x)=151.2
8.8+x=151.2*2/10.5
8.8+x=28.8
x=28.8-8.8
x=20
Answer: 20 cm
Step-by-step explanation:
area of trapeziod = ( (base + base) / 2) x height
151.2 = ( (8.8 + base) / 2 ) x 10.5
14.4 = ( (8.8 + base) / 2)
14.4 x 2 = 8.8 + base
28.8 - 8.8 = base
base = 20 cm
Solve the triangle. Round to the nearest tenth.
answer:
213.176 units^2
explanation:
1) find the height
10.8^2+h^2=22.5^2
h^2=389.61
h=19.7
2) use formula to find area
A=1/2bh
A=1/2(21.6)(19.7)
A=213.176
--
if this helped, please consider giving brainliest !
I need this ASAP!!!!!
Answer:
7/5 y intercept 1
Step-by-step explanation
Answer:
B: slope 5/7 Y-intercept is 1
Step-by-step explanation:
To calculate the slope it is rise orver run
To calculate the Y intercept you look at the graph and where-ever x=0 and y=- is the number.
The slope is 5/7 because the rise is 10 and the run is 14. 10/14 is simplified to 5/7.
the Y intercept is 1 because on the vertical line the line passes through 0,1.
What is the difference between 3/4 and 1 1/2
Answer:
3
Step-by-step explanation:11/2 = to 6/2 so the diffrence is 3 im geussing
AN
O A. SAS
DB. HL
O C. LL
O D. ASA
O E. LA
F. AAS
SUBMIT
Answer:
Its SAS( side angle side) axiom.
Part A Find the distances between points P and Q and between points R and Q. Explain your answer. Refer to the number line in your interpretation. * *
The points P, Q and R are collinear points on the number line
The distance PQ is 0.6The distance QR is 0.3How to determine the distance between P and Q?From the number line we have:
P = -0.6
Q = 0
The distance is calculated as:
PQ = Q - P
This gives
PQ = 0 - -0.6
Evaluate the difference
PQ = 0.6
Hence, the distance PQ is 0.6
How to determine the distance between R and Q?From the number line we have:
R = 0.3
Q = 0
The distance is calculated as:
QR = R - Q
This gives
QR = 0.3 - 0
Evaluate the difference
QR = 0.3
Hence, the distance QR is 0.3
Read more about number lines at:
https://brainly.com/question/10851163
Answer:
The distance PQ is 0.6
The distance QR is 0.3
Mr. warren has a bag of nails assorted lengths. he asks his sons paul and tim to sort them by length. paul pours 3/4 of the bag of nails out and sorts them. he makes a chart showing the number of nails of each length.
later, Tim sorts the rest of the nails approximately how many 1-inch nails can tim expect to find in the rest of the nails? 100 pts
Answer:
Step-by-step explanation:
he has 1/4 remaining as he has only used 3/4
