Bart practices his trumpet 1 ¼
hour each day for 5 days. How
much did he practice altogether?
Answer:
150 hours or 6.25 days
Step-by-step explanation:
5 days = 120 hours
120 hours × 1.25 hours = 150 hours
150 hours = 6.25 days
HOPE THIS HELPS!!!
-Silver
Answer:
6.25 hours
Step-by-step explanation:
1 ¼ × 5 = 6.25
The expression (2 x 7) x 3 represents the number of times Brandon went to the beach each week during 3 months. Which property is applied to write the equivalent expression 2 x (7x 3)? A. Distributive Property B. Commutative Property of Addition C.Associative Property of Multiplication D.Identity Property of Multiplication
Answer:
B. Distributive property
Step-by-step explanation:
Because (2 times 7) times 3 is the same as 2 times (7 times 3)
The numbers are just put different, and makes a different answer.
So, just because the answers are the same, doesn't make them commutative property,
So, the answer is B. Distributive propertyHye guys I need some heeeeeeeelp lol
2. Write (2+5i)(3-1) as a complex number in standard form a+bi.
real part + imaginary part
Answer:4+10i
Step-by-step explanation:
6+15i-2-5i
4+10i
I REALLY NEED HELP THIS IS URGENT.
Answer:plot at 50 degres
Step-by-step explanation:
pLEASE HELP first how do I get to the next question and what am I supposed to graph and what’s the answer
Answer:
Option D will be your answer
▪ no solution
Step-by-step explanation:
hope it's helpful...
How many times larger is 1.2*10^8 than 6*10^3
Answer:
1.2×10⁸ is greater than 6×10³ by a factor of 2×10⁴, or 20000.
Step-by-step explanation:
You can solve this simply by dividing the first one by the second one:
[tex]\frac{1.2\times 10^8}{6\times 10^3} \\\\= \frac{1.2}{6} \times \frac{10^8}{10^3} \\\\= \frac{12}{6} \times \frac{10^7}{10^3} \\\\= 2.0 \times 10^4 \\\\[/tex]
According to the guideline from the Health Department, every over-weight child needs to take a fitness test.
Every ten over-weight children would be randomly grouped together to attend the fitness test. According to
the past experience, the probability for each child to pass the fitness test is 0.75 and whether a child can pass
the test is independent with the test result of other children.
(a) Many test sessions will be conducted regularly, each with 10 independent children. Find the expectation
and standard deviation of the number of children can pass the fitness test in a test session.
(b) Most likely, how many children can pass the fitness test in a test session? Justify your answer by
comparing the two outcomes with the relatively high probability.
(c) Find the probability that less than 8 children can pass the fitness test in one test session.
Answer:
According to the guideline from the Health Department, every over-weight child needs to take a fitness test.
Every ten over-weight children would be randomly grouped together to attend the fitness test. According to
the past experience
Step-by-step explanation:
Solve For The Missing Variable In Each Figure. Give Exact Values.
Answer:
Step-by-step explanation:
[tex]sin60=\frac{\sqrt{3}{2}}\\ \\ \frac{9}{x}\\ \\ x=\frac{18}{\sqrt{3}}\\ \\ x=\frac{18\sqrt{3}}{3}\\ \\ x=6\sqrt{3}[/tex]
10. Which statement cannot be true? Explain.
A. sin A = 0.5
B.) sin A = 1.2654
C. sin A = 0.9962
D. sin A 3/4
help me pls
Midpoint, as the word suggests, means the point which lies in the middle of something.
The correct option is C. P cannot be the midpoint.
What does a midpoint mean?Midpoint, as the word suggests, means the point which lies in the middle of something. The midpoint of a line segment means a point which lies in the mid of the given line segment.
here, we have,
Since EN≅NG, therefore, the length of the two segments will be equal, which means P can not be the midpoint of the line segment EG.
Hence, the correct option is C. P cannot be the midpoint.
Midpoint, as the word suggests, means the point which lies in the middle of something.
The correct option is C. P cannot be the midpoint.
Learn more about Midpoint:
brainly.com/question/5127660
#SPJ2
complete question:
attached below.
PLEASE HELP!!
a) 16 units
b) /~13 units
c) 20 units
d) /~ units
If a plane travels over the Pacific Ocean in 2 hours, what is the traveled distance?
Answer:
The plane went as as much in mph as he went in 2 hours
ex: 1mph =2 miles in 2 hours
ex2: 48mph =96 miles in 2 hours
1. A ball is kicked up from a platform 36 feet above the ground. The height of
the ball h(t) above the ground (measured in feet) can be modeled by the
function h (t)
-3t2 + 12t + 36, where t represents the amount of time
(in seconds) since the ball was kicked. How long to the nearest second did it
take the ball to hit the ground?
-
seconds to hit the ground
Answer:6
Step-by-step explanation:
So when the ball hits the ground -3t^2+12t+36 must equal 0
So you can factor a -3 out
-3(t^2-4t-12)=0
Factor -3(t-6)(t+2)=0
T-6=0 t+2=0
T=6 t=Negative 2
And since time can’t be negative the answer is 6
4x^2 – 44x + 96 factor polynomial completely step by step
Answer:
4(x-8)(x-3)
Step-by-step explanation:
First take out a factor of 4:
4(x^2 -11x + 24)
Then factor the quadratic
4(x-8)(x-3)
Over with interval of the domain is fungi on m negative
Cost of 750ml at $68 what would be the price of a litre
Answer:
$90.67
Step-by-step explanation:
PLEASEEEEE SOMEBODY CAN YOU LOOK AT THE ATTACHMENTS ITS MATH IM OFFERING A 69 POINTS
I don't know sorry but I recommend using quizlet
What's the equation of this sequence 4,8,16,32,64,128,256
Answer:
n x 2
Step-by-step explanation:
n x 2
4,8,16,32,64,128,256 , 512,1024,2048...
What proportion can be used to find the length of BC?
Answer:
B. 20/5 = BC/4
FIST ONE TO AWNSER AND CORRECT GETS BRAINLYIST AND 50 POINTS HURRY!!!!!!!!!!!!
Which graph shows equivalent ratios?
A. On a coordinate plane, a line goes through points (2, 3) and (4, 4).
B. On a coordinate plane, a line goes through points (2, 2) and (3, 6).
C. On a coordinate plane, a line goes through points (1, 2) and (2, 4).
D. On a coordinate plane, a line goes through points (0, 6) and (1, 5).
Answer:
D
Step-by-step explanation:
It is because you can see the line pass through the value 0 in x-axis while 6 in y-axis which gives the first coordinate (x,y) = (0,6) and the line also past through the value of 5 in x-axis and 1 in y-axis which gives the second coordinate is (1,5).
So it is true that the line did go through at points (0,6) and (1,5).
Answer:
B
Step-by-step explanation:
Other guy is wrong
find the value of x. x⁵- 3x³- 2x²- x +2=0
Answer:
1
Step-by-step explanation:
By the remainder theorem,
(x-2)=0
x=2
p(0)=16-24+8+2-1
=1
I hope this helps you
Step-by-step explanation:
Answer:The answer is 1
Step-by-step explanation:
PLEASE HELP ME!! I DONT UNDERSTAND HOW TO DO THIS PROBLEM, and I need the correct answer
Answer:
C
Step-by-step explanation:
The lines cross at (1,4)
Two cubes are shown. If the side length of each cube is 3 feet, what is the total volume of the two cubes?
Answer:
12
Step-by-step explanation:
How many terms of the series do we need to add in order to find the sum with an absolute value of its error to be less than 0.01?
Answer:
Hello your question is incomplete attached below is the complete question
answer : first 7 terms ( option 3 )
Step-by-step explanation:
Determine the number of terms of the series that is needed to find a sum with an absolute value of its error to be less than 0.001
The number is : 7
attached below is the detailed solution
Convert
80.1
%
80.1% to a fraction in simplest form and a decimal.
Answer:
Step-by-step explanation:
Answer:
801/1000 and 0.801
Step-by-step explanation:
A percentage is basically a number, with the decimal point moved to the right 2 places, so to convert the percent to a decimal, move the decimal point to the left twice, and then you will also get your fraction.
Hope this helps!
525 divided by 15 = 35
Answer:
That is ccorrecct
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
I looked it up
I'll mark brainliest!
Answer:
C is your answerrrr
can i have brainliest?
Step-by-step explanation:
Answer:
The answer is c
this is the answer because Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 3 × 8 = 24,
1/3 = 1/3 × 3/8 = 8/24
Likewise, for the 2nd fraction, since 8 × 3 = 24,
3/8 = 3/8 × 1/3= 9/24
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
8/24 < 9/24
or 1/3 < 3/8
PLEASE HELP ITS URGENT DONT GUESS (also if you get it right ill mark you as brainliest)
Answer:
136.69 ft
im not completely sure but thats my best guess
We need to find the perimeter of the garden.
Perimeter of rectangle:
P= 19*2+29*2
P= 38+58
P= 96 ft
Perimeter of semicircle:
The diameter is 19ft
P= π*d
P= 3.14*9.5
P= 29.83 ft
Perimeter of the garden:
96+29.83
= 125.83 ft
So the fence has to be 125.83 ft
Find the product - you must show your thinking to support your answer. (Don't give me a thing to download as an answer, I can't download it.)
(−8) ⋅ (−2/3)
A certain forum reported that in a survey of 2005 american adults, 27% said that they believe in astrology.
(a) Calculate a confidence interval at the 99% confidence level for the proportion of all adult Americans who believe in astrology. (Round your answers to three decimal places.) Interpret the resulting interval.
i. We are 99% confident that the true population mean lies below this interval.
ii. We are 99% confident that the true population mean lies above this interval.
iii. We are 99% confident that this interval contains the true population mean.
iv. We are 99% confident that this interval does not contain the true population mean.
(b) what sample size would be required for the width of a 99% CI to be at most 0.05 irrespective of the value of p? Round your answer up to the nearest integer.)
Answer:
Step-by-step explanation:
Using confidence interval concepts, it is found that:
a)
The 99% confidence interval for the proportion of all adult Americans who believe in astrology is (0.244, 0.296).
The interpretation is:
iii. We are 99% confident that this interval contains the true population mean.
b)
A sample size of 664 would be required.
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]\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm M[/tex]
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]\frac{1+\alpha}{2}[/tex].
The interpretation of a x% confidence interval between a and b is that we are x% confidence that the true population mean lies in this interval, thus, option iii is correct.
In this problem:
Survey of 2005 adults, thus [tex]n = 2005[/tex].27% believe in astrology, thus, [tex]p = 0.27[/tex].99% confidence interval, thus z has a p-value of [tex]\frac{1 + 0.99}{2} = 0.995[/tex], thus z = 2.575.Then:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]M = 2.575\sqrt{\frac{0.27(0.73)}{2005}}[/tex]
[tex]M = 0.026[/tex]
The interval is:
[tex]M - \pi = 0.27 - 0.026 = 0.244[/tex]
[tex]M + \pi = 0.27 + 0.026 = 0.296[/tex]
The 99% confidence interval for the proportion of all adult Americans who believe in astrology is (0.244, 0.296).
Item b:
Irrespective of the value of p, thus [tex]\pi = 0.5[/tex].Margin of error of [tex]M = 0.05[/tex], and we have to find n:[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.05 = 2.575\sqrt{\frac{0.5(0.5)}{n}}[/tex]
[tex]0.05\sqrt{n} = 2.575(0.5)[/tex]
Dividing both sides by 0.05.
[tex]\sqrt{n} = 2.575(10)[/tex]
[tex](\sqrt{n})^2 = [2.575(10)]^2[/tex]
[tex]n = 663.1[/tex]
Rounding up:
A sample size of 664 would be required.
A similar problem is given at https://brainly.com/question/16807970