Answer:
yeah, it is 35.77
Step-by-step explanation:
:)))))
a is an integer greater than -3 and less than 3?
John works in a car dealership selling new and used cars, He is extremely busy during major holidays selling as many cars as possible. The store’s motto is “Work Hard Earn More”. During the last holiday period, John sold $150,000 worth of vehicles. His commission is 15% of the first $100,000 and 10% on the remaining balance. How much commission did he earn on his total sales?
PLZZZ HELP ASAP
Answer:
20,000$
Step-by-step explanation:
15% of 100,000$ is 15,000$
10% of the remaining 50,000$ is 5,000$
Answer:
Hey yes you give brainly to the other person now they answered it even if it's
wrong they still helped thanks Hun hope you pass
Step-by-step explanation:
If you can help me, I respect you and hope you have a great day
Answer:
4
Step-by-step explanation:
I'm 99 percent sure that the scale factor is four. Multiply the measurements of Figure A by four, and they match the measurements of Figure B.
Can someone help me out with my sister's math problem? she's in middle school btw
Answer:
-1/2
Step-by-step explanation:
u move up 1 across 2 and slope is going down so it is a negative
Please help me please !!
Answer:
The answer is C) the starting amount in the account
Step-by-step explanation:
True or False? A triangle cannot have side that are pararell. Explain your thinking
Answer:
True. It would need two interior angles of 90 degrees to have parallel lines. However the interior angles must add up to 180 in order for it to be a triangle therefore it is true.
Step-by-step explanation:
A triangle cannot have side that are parallel is True.
What is Parallel line?The fundamental characteristics listed below make it simple to recognise parallel lines.
Straight lines that are always the same distance apart from one another are called parallel lines.No matter how far apart they are from one another, parallel lines can never intersect.No matter how long you make them, parallel lines will never cross one another.
and, A polygon with three sides and three angles is called a triangle.
So, A triangle does not include any parallel lines because of its shape.
Also, We cannot say a triangle is parallel because a side doesn't have an opposite side.
Hence, A triangle cannot have side that are parallel is True.
Learn more about Parallel line here:
https://brainly.com/question/16701300
#SPJ2
Determine which sets of lengths can form a right triangle.
Right triangle
Yes
No
30, 40, 50
4, 4, 16
48, 55, 73
Submit
Work it out
Answer: 50,40
Step-by-step explanation:
because a right angle is 90 degress
Answer:
Triangle 1 is a right triangle
Triangle 2 is not a right triangle
Triangle 3 is a right triangle
Step-by-step explanation:
Triangle 1: 30^2 + 40^2 = 50^2
900 + 1600 = 2500
2500 = 2500
Triangle 2: 4^2 + 4^2 = 16^2
16 + 16 = 256
32 = 256
Triangle 3: 48^2 + 55^2 = 73^2
2304 + 3025 = 5329
5329 = 5329
A professor wants draw a sample of 50 students to fill out a questionnaire about which sports they play. The professor’s 10:00 am class has 50 students. She uses the first 20 minutes of class to have the students fill out the questionnaire. Which sampling method did the professor use?
Step-by-step explanation:
I would suggest that this is cluster sampling.
The teacher is selecting a cluster of the population at random to sample.
This is a method of probabalistic sampling.
22) Daniel won 55 pieces of gum playing
basketball at his school's game night. Later,
he gave two to each of his friends. He only
has 3 remaining. How many friends does he
have?
Answer:
26 friends
Step-by-step explanation:
Find the midpoint of A and B where A has coordinates (-5, 3)
and B has coordinates (3,-1)
Answer:
(-1, 1)
Step-by-step explanation:
Midpoint formula: (x₁ + x₂/2 , y₁ + y₂/2)
Substitute the values into the formula.
(-5 + 3/2 , 3 - 1/2)
(-2/2 , 2/2)
(-1,1)
Therefore, the midpoint is (-1, 1).
work out and simplify where possible
7/15+2/15
Answer:
3/5
Step-by-step explanation:
7/15 + 2/15 = 9/15
both 9 nad 15 are divisible by 3
9/15 = 3/5
1/2h=16 1/2 (8)
What is the answer it’s due tomorrow help!
What number a is 70% of 70?
70
100
Answer:
49
Step-by-step explanation:
hope this helps!
Answer:
49
Step-by-step explanation:
49 is the answer!!!!
Acid rain accumulations in lakes and streams in the northeastern part of the United States are a major environmental concern. A researcher wants to know what fraction of lakes contain hazardous pollution levels. He randomly selects 200 lakes and determines that 45 of the selected lakes have as unsafe concentration of acid rain pollution.
(a) Calculate the best point estimate of the population proportion of lakes that have unsafe concentrations of acid rain pollution.
(b) Determine a 95% confidence interval for the population proportion.
(c) If a local politician states that only 20% of the lakes are contaminated, does the study provide overwhelming evidence at the 95% level to contradict his views?
Answer:
a) 0.225
b) (0.167, 0.283)
c) No, since 20% = 0.2 is part of the confidence interval.
Step-by-step explanation:
(a) Calculate the best point estimate of the population proportion of lakes that have unsafe concentrations of acid rain pollution.
45 out of 200 lakes. So
45/200 = 0.225
So the best point estimate of the population proportion of lakes that have unsafe concentrations of acid rain pollution is of 0.225.
(b) Determine a 95% confidence interval for the population proportion.
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
For this problem, we have that:
[tex]n = 200, \pi = 0.225[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The lower limit of this interval is:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.225 - 1.96\sqrt{\frac{0.225*0.775}{200}} = 0.167[/tex]
The upper limit of this interval is:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.225 + 1.96\sqrt{\frac{0.225*0.775}{200}} = 0.283[/tex]
The 95% confidence interval for the population proportion is (0.167, 0.283).
(c) If a local politician states that only 20% of the lakes are contaminated, does the study provide overwhelming evidence at the 95% level to contradict his views?
No, since 20% = 0.2 is part of the confidence interval.
Walter has saved 25% of the money he needs to buy a new pair of shoes. If he saved $21, how much money does the pair of shoes cost? Use $ to label your answer. (Example: $3.00)
Answer:
The pair of shoes is $84
Step-by-step explanation:
he saved 1/4 (25%) of what he needs to buy the shoes. 25 x 4 =100 =full price
21 x 4 =84. and also if you can do 84 - 25% on a calculator, the 25% would turn to 21, or at least in mine it did. Total price of shoes - money saved = money needed to buy shoes, which is $63.
dang i wrote a lot, but hope this helps
Please help I will make you Brainliest this is timed!!
Step-by-step explanation:
For all y values, just look along the y-axis. The same applies to the x-axis.
17. Find the reflection of the point A(6.-1) in the x-axis.
Answer:
Your answer will be (6,1)
Step-by-step explanation:
I know this because a reflection over the x-axis is (x,y) -> (x,-y) If you apply this to (6,-1) you get (6,1).
The length of a rectangular garden is 5x+5
feet and its width is 2-3x feet. What is the
perimeter of the garden?
Answer:
4x+14
Step-by-step explanation:
we know that in a rectangle, 2 sides are equal to one another (opposite sides), and the other 2 are equal to each other.
so,
2(5x+5) for the first 2 sides. you'd get 10x+10
2(2-3x) for the other two sides. you'd get -6x+4
add them up, and you'd get 4x+14
Comparing Means
7th Grade
Students in 7th grade took a standardized math test
that they also had taken in 5th grade. The results are
shown on the dot plot, with the most recent data shown
first.
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Test Score
Find and compare the means to the nearest tenth.
7th-grade mean:
5th Grade
5th-grade mean:
What is the relationship between the means?
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Test Score
Answer:
THE RIGHT ANSWER:
16, 13.4, the 7th grade mean is about 2.5 points higher.
Step-by-step explanation:
Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade student.
What is the Mean of a Data Distribution?The mean is the average of the data set, that is the sum of each data value divided by the number of data points.
The dot plots for 7th and 5th grade is attached below.
Mean for 7th Grade Students:
Mean = [10 + 11 + (2 × 12) + 13 + 14 + (2 × 15) + (3 × 16) + (3 × 17) + (2 × 18) + (2 × 19) + (3 × 20)]/21
Mean = 335/21
Mean = 15.95 = 16
Mean for 5th Grade Students:
Mean = [8 + (2 × 9) + (2 × 10) + (2 × 11) + (2 × 12) + (2 × 13) + 14 + (3 × 15) + (2 × 16) + 17 (2 × 18) + 19
Mean = 281/21
Mean = 13.38 = 13.4
Difference between their means = 16 - 13.4 = 2.6.
In summary:
Mean for 7th Grade Students is: 16
Mean for 5th Grade Students is: 13.4
Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade student.
Learn more about the mean of data on:
https://brainly.com/question/11015069
Turn 8/6 into a mixed fraction
HELP HELP HELP
5TH GRADE MATH
HELP HELP HELP
Answer: it should be 14 or 10
Step-by-step explanation:
probability question!!!! help please!!!...Using a standard 52 card deck, what is the probability of pulling the king of hearts if you are
given two attempts (you will pull out one card and then another card)??
Answer:
4/103
Step-by-step explanation:
2/the average of 52 and 51
2/51.5 or 4/103
46°
7 8
T
E
8
15
10
6
29°
S
20
Given ASTU and ADEF,
what is mZD? what is m/T?
Please help
Answer:
m ∠D = 29°
m ∠T = 105°
Step-by-step explanation:
Given: ΔSTU and ΔDEF
To find: m ∠D and m ∠T
Solution:
According to SSS similarity criteria,
two triangles are said to be similar if their corresponding sides are proportional.
In ΔSTU and ΔDEF,
[tex]\frac{ST}{DE}=\frac{15}{6}=\frac{5}{2} \\\\\frac{TU}{EF}=\frac{10}{4}=\frac{5}{2}\\\\\frac{SU}{DF}=\frac{20}{8}=\frac{5}{2}[/tex]
So,
[tex]\frac{ST}{DE}=\frac{TU}{EF}=\frac{SU}{DF}=\frac{5}{2}[/tex]
Therefore,
ΔSTU ≈ ΔDEF
If two triangles are similar then measure of their corresponding angles are equal.
m ∠D = m ∠S = 29°
m ∠U = m ∠F = 46°
In ΔSTU,
m ∠S + m ∠T + m ∠U = 180°
29° + m ∠T + 46° = 180°
75° + m ∠T = 180°
m ∠T = 180° - 75° = 105°
(According to angle sum property of a triangle, sum of measures of angles of a triangle is equal to 180°)
I WILL GIVE BRAINLYEST
What is the slope of the line passing through the points (2, 5) and (0, -4)?
a 9/2
b2/9
c-9/2
d-2/9
Answer:
c: -9/2
Step-by-step explanation:
to calculate the slope its rise/run so
-9/-2
now that means ur answer is c -9/2
Which of the following stamens are true about the graph?
A. The graph has a minimum
B. The graph has a maximum
C. The graph has zeros at -4 and 2.
D. The vertex is located at (-1-9)
E. The graph has a y-intercept of (-4,0) and (2,0)
F. The solution of the quadratic function represented by the graph is (-1,-9).
G. The y-intercept of the graph is (0,8)
John and his wife took 5 hours to dig a hole in the garden
How long would it have taken 8 people in hours and minutes to did the same hole
hours
Answer:
1.25 hours = 1 hour 15 minutes
Step-by-step explanation:
5 hours = 2 people
2.5 hours = 4 people
1.25 hours = 8 people
What is the explicit formula for the geometric sequence: 224, 112, 56, 28, ... .
Answer:
a_n=224(1/2)^n-1
Step-by-step explanation:
In this geometric sequence, we can see that the common ratio is 1/2 and the 1st term is 224. using this information, we can plug it into the geometric series formula and we get a_n=224(1/2)^n-1.
Bananas are selling for $0.85 a pound. Milan spent $9.86 on bananas. How many pounds of bananas did Milan buy?
Answer:
11.6 lbs
Step-by-step explanation:
2+3+4+5+6+4+2+1+34+4+4+4+4+5
Answer:
The answer is 82.
Step-by-step explanation:
Just work it through.
Math question I'm having trouble on: 20 Points.
Answer:
its D
Step-by-step explanation:
two over y is just division.
Answer:
2 divided by some number
Step-by-step explanation:
when you have a fraction like that your dividing
