HELP FAST PLEASE (zoom in on the photo) Your friend graphs the inequality, Is your friend correct?
-1
-
0
o yes
no
Explain your reasoning
Answers
Answer
i would say no
Step-by-step explanation:
Related Questions
the following box plot shows the number of years during which 20 schools have participated in an inter-school swimming meet at least how many schools have participated for 6 years or more?
A: 4
B: 5
C: 10
D: 11
Answers
Answer:
4 schools
Step-by-step explanation:
Based on the box plot you have given above, the answer would be 20% of the total schools participated for 6 years or more. This is because the part of the box plot wherein it hits 6 years and above is 20%. Thus, if there are 20 schools, then the 20% of it would be 4. In conclusion, there are 4 schools that participated for 6 years or more.
Hope this helps!!
work out the size angle of x. Give reasons for your answer
Answers
the sum of 105° and x should be 180° since ABF and EFG angles are equal
180°=105°+x
180°-105°=x
75°=x
(3x^2+2y^2+3xy)-(x^2+y^2+2xy)
Answers
Answer:
6x+4y+3xy-2x+2y+2xy
4x+2y+xy
this is the answer
Step-by-step explanation:
4x+2y+xy answer
hope this will help you
What fraction is equivalent to. —-
0.45?
Answers
Answer:
E. 9/20
Step-by-step explanation:
0.45=45/100=9/20
Answer:
E. 9/20
Step-by-step explanation:
0.45= 45/100
45/100 divided by 5 is 9/20
Ronald runs 6,000 meters in 2 hours. He is thinking of running an 18 kilometers race. How much time will he take in the race if he maintains the same speed?
Answers
Answer:
6 hours
Step-by-step explanation:
speed = distance/ time
6000meters to km = 6000/1000= 6km
speed for the first race = 6/2
speed = 3km/hr
for the second race
speed = distance/time
3 = 18/time
cross multiply
3* t = 18
divide both sides by 3
t = 18/3
t = 6 hours
Answer:
Ronald will take 6 hours to complete the 18 km race if he maintains this speed.
Step-by-step explanation:
6000m in 2h = 6km in 2h
multiply by 3:
18km in 6h
Have a nice day!
What is true about the slope of the line graphed?
EO
A. The slope is positive.
B. The slope is negative
C. The slope is zero.
D. The slope cannot be determined.
Answers
Answer:
B, slope is negative
Step-by-step explanation:
if the line, starting from left, goes down then the slope is negative
1. True or false:
The ordered pair (3, 4) is a solution for the equation:
5x + 2y = 23
2. True or false:
The ordered pair (0, 4) is a solution for the equation:
5x + 2y = 23
Answers
1) true
2)false
Step-by-step explanation:
1) 5(3)+2(4) = 23
= 15+8=23
23=23
thus, (3,4) is solution for 5x + 2y = 23
2) 5(0)+2(4) =23
= 0+8 is not 23
thus, (0,4) is not solution for 5x + 2y = 23
Which of the following is equivalent to ^5sqrt13^3
Answers
Answer:
The last one 13^3/5
Step-by-step explanation:
13^3/5
A math professor notices that scores from a recent exam are normally distributed with a mean of 61 and a standard deviation of 8. Answer the following questions using integer values.
(a) What score do 25% of the students exam scores fall below?
And, the professor decides to grade on a curve. If he wants .15% of the students to get an A, what is the minimum score required.
I have tried a "calculator" I found online and the answers it provided gave me 50% credit and I don't know which answer is correct as I don't know how to do the actual calculation.
I would appreciate referral to any valid resources as it has been many, many years since I took a math class.
(b) Suppose the professor decides to grade on a curve. If the professor wants 0.15% of the students to get an A, what is the minimum score for an A?
Answers
Answer:
a) 25% of the students exam scores fall below 55.6.
b) The minimum score for an A is 84.68.
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 61 and a standard deviation of 8.
This means that [tex]\mu = 61, \sigma = 8[/tex]
(a) What score do 25% of the students exam scores fall below?
Below the 25th percentile, which is X when Z has a p-value of 0.25, that is, X when Z = -0.675.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-0.675 = \frac{X - 61}{8}[/tex]
[tex]X - 61 = -0.675*8[/tex]
[tex]X = 55.6[/tex]
25% of the students exam scores fall below 55.6.
(b) Suppose the professor decides to grade on a curve. If the professor wants 0.15% of the students to get an A, what is the minimum score for an A?
This is the 100 - 0.15 = 99.85th percentile, which is X when Z has a p-value of 0.9985. So X when Z = 2.96.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]2.96 = \frac{X - 61}{8}[/tex]
[tex]X - 61 = 2.96*8[/tex]
[tex]X = 84.68[/tex]
The minimum score for an A is 84.68.
.
8
10
12
14
16
Girls
8
10
12
14
16
Boys
What is the difference between the medians for the two data sets?
O tickets
0 2 tickets
4 tickets
O 6 tickets
Answers
1. Taylor drinks 2 liters of water during
every concert. How many milliliters did
she drink during two concerts?
Answers
Answer:
4000 Milliliters......
Lyndy conducted a survey of the 300 students in her school. She found that 60 students own dogs, while only 30 students own cats. What percent of the students own cats?
give me direct answer
Answers
Answer:
390
Step-by-step explanation:
u add all together
Noah picks a card at random from a stack that has cards numbered 5 through 20. List the sample space and tell how many outcomes there are.
Answers
Answer:
6
Step-by-step explanation:
6
What number is rational, less than 0, greater than -4 but is not an integer?
Answers
Nine less than the product of a number n and 1/4 is no more than 93
Answers
Answer:
n < 408
Step-by-step explanation:
(n/4) - 9 < 93
n - 36 < 372
n < 372 + 36
n < 408
Correct me if I'm wrong. I hope it helps
2(x + 1) > 10
Help pleaseeeeeeee
Answers
Answer:
x > 4
Step-by-step explanation:
2(x + 1) > 10
x + 1 > 5
x > 4
right triangle with x, 29, and 18 degrees
Answers
Answer:
we can't answer this bc u dont show which side is whicj
Step-by-step explanation:
but u need to use sin, cos, or tan
which shapes have 2 obtuse angles? choose
Answers
Answer:
a trapizoid has 2 obtuse angles
Step-by-step explanation:
PLEASE HELP I DONT GET THIS AT ALL I BEG U! helppp!! pleaseeee!!
Answers
what is the answer please? show step by step
Answers
Answer:
D
Step-by-step explanation:
f(x-3) = (x-3)^2 - 8
f(x-3) = (x-3)(x-3) - 8
f(x-3) = x^2 - 6x + 9 - 8
f(x-3) = x^2 - 6x + 1
Please answer CORRECTLY for brainliest guarantee. If your answer is not correct or does not have a explanation I will report you!
Answers
Answer:
c. 45.34ft
Step-by-step explanation:
When leg one of the triangle is 15ft and leg two is 17 ft you would take 17^2 + 15^2 and then you find the square root of that (514) to get the hypotenuse of the triangle. After that you multiply by two to account for the 2/2 sqaure foot per each unit
The probability of winning a game is 20% how many times should you expect to win if you play 36 times
Answers
Susan has 3 pairs of shorts, 5 shirts, and 2 pairs of shoes to take to camp. If she wears a pair of shorts, a shirt and pair of shoes each day, how many different outfit combinations does Susan have to choose from?
Answers
Answer:
30
Step-by-step explanation:
I need help ss is below
Answers
Answer:
9± √3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hope this helps u!!
Evaluate the expression when b= 3 and x= -3
B-5x
Answers
Answer:
3-5(-3)
3 minus -15
-12
Step-by-step explanation:
PLEASE DONT SEND LINKS OR I WILL REPORT! Emily buys meat for a charity event in her community. Chicken costs 4 AED per kg and beef burger 3 AED per kg. How much will she spend on 3.6 kg of chicken and 2.2 kg of beef burger?
Answers
Answer:
21 AED
Step-by-step explanation:
W know the cost of each kind of meat
Chicken = 4 AED
Beef = 3 AED
We also know how much of each we will be buying
Chicken = 3.6 kg
Beef = 2.2 kg
Multiply each price of meat by its respective weight, then add the products together for you final answer.
4(3.6) + 3(2.2) = 21
A researcher surveyed 220 residents of a city about the number of hours they
spend watching news on television each day. The mean of the sample was
1.8 with a standard deviation of 0.35.
The researcher can be 95% confident that the mean number of hours all the
residents of the city are watching news on television is 1.8 with what margin
of error?
Answers
Margin of error is 4.645% with 95% confidence that the mean number of hours all the residents of the city are watching news on television is 1.8 .
Data given :
A researcher surveyed 220 residents of a city about the number of hours they spend watching news on television each day. The mean of the sample was 1.8 with a standard deviation of 0.35 .
The researcher can be 95% confident that the mean number of hours all the residents of the city are watching news on television is 1.8 with what margin of error,
By formula of margin of error = [tex]M = 1.96 \times S / \sqrt{N} ,[/tex]
[tex]Margin \ of \ error, \ M = z \times \frac{s}{\sqrt{N}}[/tex]
z - represents the z-value for the required confidence level .
s - represents the standard deviation of the sample .
N - represents the sample size .
Now, using the above information, compute the margin of error as -
[tex]\therefore \ Margin \ of \ error, \ M = z \times \frac{s}{\sqrt{N}} \\= 1.96 \times \frac{0.35}{\sqrt{220}}[/tex]
[tex]=0.04625 (rounded \ to \ 5\ decimal\ places) \\\\ =4.625\%[/tex]
Thus, the margin of error, M, is approximately 4.625% .
Know more about margin of error,
https://brainly.com/question/34599324
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Evaluate the expression for b = 7
6b + 8 – 5b
Answers
Answer:
For b = 7, the expression equals 15.
Step-by-step explanation:
6b + 8 - 5b
Substitute the variable b = 7.
6(7) + 8 - 5(7)
Multiply.
42 + 8 - 35
Add.
50 - 35
Subtract.
15.
Answer:
15
Step-by-step explanation:
6 × 7 = 42
5 × 7 = 35
42 + 8 - 35 = 15
What is the distance from -2 to 0?
O A. 2, because |-2| = 2
ОВ.
1
2
because 1-2) =
2
O c. 2, because 1-21 = -2
D. -2, because |-2| = -2
Answers
Answer:
A. 2, because -2=2 2+-2=0 if that makes sense
What is the range of y = -3sin(x)?
THE ANSWER
B) -3 (less than or equal to) y (less than or equal to) 3
Answers
Answer:
its b
Step-by-step explanation:
the man said so
Answer:
b
Step-by-step explanation: