Answer:
use formula,
volume=1/3hπ[tex]r^{2}[/tex]
2592=1/3*h*3.14*(18)^2
2592=1/9.42h*324
2592=1/3050.08h
2592h=1/3050.08
h=1/3050.08*1/2592
h=1/79058071.36
h=1.26*10^-8
Step-by-step explanation:
plz answer this question without putting links or files
Answer:
(6,14) (7,16) (8,18)
Step-by-step explanation:
The x values are going up by one, while the y values are going up by 2.
Sarah earns $340 per week and spends 20% of her earnings on transportation. How much does Sarah spend on transportation every week?
Answer:
$68
Step-by-step explanation:
=> 20% 0f 340
=> (20/100) * 340
=> (1/5) * 340
=> (340/5) = 68
Sarah spends $68 dollar on transportation.
Thenks and mark me brainliest :)
What triangle is formed by the points (3,2), (4,7), and (5,6)?
Answer:
Scalene Triangle
Step.-by-step explanation:
Calculate the lengths of the sides:
Side 1 = √((4-3)^2+(7-2)^2) = √26.
Side 2 = √((6-7)^2+(5-4)^2) = √2.
Side 3 = √((6-2)^2+(5-3)^2) = √20.
So each side is different in length and so its a scalene triangle.
a newspaper carrier can deliver 240 newspapers in 3 hours. How long would it take the newspaper carrier to delivef 160 newspapers?
Answer:
2 hours
Step-by-step explanation:
Make a ratio. If 240 newspapers can be delivered in 3 hours, 160 newspapers can be delivered in how many hours.
240/160 = 3/x
Okay now, multiply 160 times 3 and that would equal 480. Next do 480 divided by 240 and you get 2. So the answer is 2 hours!
Hope this helped!! :)
Find two numbers a and b whose sum a+b is -3 and whose difference a−b is -5
Answer:
A=-4, b=1
Step-by-step explanation:
add those two function together u will got:
a+b+(a-b)=-3+(-5)
2a=-8
A=-4
-4+b=-3
B=1
question number eight answer
I think you forgot to attach the picture w/ the question . .
math please help 10 points!
Answer:
D. 36m^2
Step-by-step explanation:
4×9= 36
length × height = area
What is the volume of a regular cylinder whose base has a radius of 14cm and has a height of 6 cm
Answer:
3692.64 cm³
Step-by-step explanation:
What is the area of the shaded region of this circle?
an are whose measure is exactly 180°
Answer:
Mmeasure is exactly 180°
semi-circle because the measure of a whole circle is 360°.
Arc :
The arc of a circle consists of two points on the circle and all of the points on the circle that lie between those two points. It's like a segment that was wrapped partway around a circle. An arc is measured not by its length (although it can be, of course) but most often by the measure of the angle whose vertex is the center of the circle and whose rays intercept the endpoints of the arc. Hence an arc can be anywhere from 0 to 360 degrees.
A model car is built on a 1:16 scale
If the wheelbase on the actual car is 186 inches, what is the wheelbase on the model? Give your answer as a decimal. Do not round and do not include the units.
Answer:
11.625inches
Step-by-step explanation:
If a model car is built on a 1:16 scale and the length of actual car is 186inches
16inches = 1
186inches = x
16* x = 186
x = 186/16
x = 11.625
hence the wheel base of the model is 11.625inches
Write an equation of a line with slope -4 and y- intercept of 0
Answer:
y=-4x
Step-by-step explanation:
A UW Madison professor is interested in learning about the variance of grades for university students. The professor gathers the sample variance for a random sample of 50 students. From past experience, the professor knows that the population of students is normally distributed. The sample variance that is collected is equal to 80. The professor would like to infer at the 1% significance level that the population variance is less than 100.
a. State the appropriate null and alternative hypothesis.
b. What is the correct test statistic?
c. What is the conclusion of the test?
d. What would be the effect if the professor increased the sample size?
Answer:
A) H0 : μ = 100
H1 : μ < 100
B) 39.2
C) We fail to reject null hypothesis
D) If the professor increases the sample size the value of the test statistic will increase .
Step-by-step explanation:
sample variance ( s ) = 80
sample size = 50
At ∝ = 0.01 population variance ( σ ) < 100
a) Hypothesis
H0 : μ = 100 ( Null hypothesis )
H1 : μ < 100 ( Alternate hypothesis )
b) Determine The correct test statistic
x^2 = ( n-1 ) * s^2/σ^2
= ( 49 ) * 80^2 / 100^2
= 39.2
C) Determine the conclusion of the test
The P-value = 0.1596 ( calculated )
The conclusion of the test is that we fail to reject null hypothesis given that
P-value ( 0.1596 ) > ∝ ( 0.01 )
D) If the professor increases the sample size the value of the test statistic will increase .
It takes an older pump 4 times as long to drain a certain pool as it does a newer pump. Working together, it takes the two pumps 3 hours to drain the pool. How
long will it take the newer pump to drain the pool working alone?
Do not do any rounding.
Answer:
New pump = 3.75 hours
Old pump = 15 hours
Step-by-step explanation:
Let :
Time taken by newer pump = x hrs
Time taken by older pump = 4x hrs
Time taken when working together = 3 hours
Drain rate :
Newer pump = 1/x
Older pump = 1/4x
Combined = 1/3
Hence :
Newer pump rate + older pump rate = combined rate
1/x + 1/4x = 1/3
Take the lcm
(4 + 1) / 4x = 1/3
Cross multiply
5 * 3 = 4x
15 = 4x
x = 15/4
x = 3.75
The old pump will take :
4x = 4 * 3.75 = 15 hours
Hannah Borjas
What is the perimeter of the rectangle?
TH
65 feet
55 feet
A 240 feet
B 130 feet
с
3,575 feet
D
120 feet
Como sacar una taza de porcentaje
Answer:
La tasa de porcentaje resulta de la división del valor de porcentaje (el dividendo) entre el valor base (el divisor) multiplicado por 100 %.
9 – 3 (2+6)÷6 -2 × 5? step by step please
Can someone help me please
Answer:
It's 2/15
Step-by-step explanation:
Need help!!!!!!!!!!!!!!!!
Answer:
x=35
y=72.5
Step-by-step explanation:
Answer:
x=35 , y=72.5
Step-by-step explanation:
I'm not amazing at explaining but x is obviously 35 as its across from it and looks like it's the same angle, we'll be able to test this when we figure out y. Both of the y values are the same number so you just need to figure out
2y + 35 = 180
Minus 35 from both sides
2y = 145
Then we can divide 2 from both sides
y = 72.5
Then we test for x
2y + x = 180
Plug in y
145 + x = 180
Minus 145 from both sides
x= 35
There's your answer! I hope I cleared up any confusion
The lines graphed below show the amounts of water in two tanks as they
were being filed over time.
Which tank shows a proportional relationship between the amount of
water, in gallons, and the time, in minutes?
Answer:
Tank B
Step-by-step explanation:
Proportional relationships are relationships between two variables with equivalent ratios. For a proportional relationship, one variable is always a constant value times the other. A line is a proportional relationship if it starts from the origin, but if it does not start from the origin, it is not proportional.
From the two tanks, we can see that tank A have a y intercept whereas tank B starts from the origin. Therefore tank B shows a proportional relationship.
Practice:
Determine the coordinates of the point on the unit circle corresponding to the given central angles. if necessary, round your results to the nearest hundredth.
215°
a. (-0.82, 0)
b. (-0.57, -0.82)
c. (-0.82, -0.57)
d. (1, -0.57)
Please select the best answer from the choices provided
Answer:
C. (-0.82, -0.57)
Step-by-step explanation:
I calculated it logically
A classroom has a perimeter of 62.25m. What is the absolute error of the perimeter?
0.005m
Step-by-step explanation:Measuring properties of a given entity is always prone to error and hence leads to inaccuracy in the resulting measurement. One of such errors is the absolute error.
Absolute error is the difference between the actual/exact value and measured value.
The classroom has been measured to have a perimeter of 62.25m. This shows that it is accurate to 0.01 of a meter. This means that the actual measurement of the classroom could either be 0.005m more or less than the measured value.
In other words, the actual value of the classroom is
62.25 ± 0.005 m
This difference of 0.005 m gives the absolute error.
The height of a triangle is 7 ft more than its base. If the area of the triangle is 30 ft2, what is the length of the base?
2 ft
5 ft
9 ft
12 ft
Answer:
see below
Step-by-step explanation: 5 27 7 16
area = 1/2 bh
height of a triangle is 7 ft more than its base
base = b
height = b + 7
area = 30
area = 1/2 b(h)
30 = 1/2 b(b + 7)
30 = 0.5(b²+ 7b)
30 = 1/2 b²+ 3.5b solve for b
1/2 b²+ 3.5b = 30
1/2 b²+ 3.5b - 30 = 0
b²+ 7b - 60 = 0 factor
(b +12)(b - 5) = 0 when b = -12 or 5 base length can't be negative
b = base = 5
area = 1/2 bh 1/2×2(9) = 9
area = 1/2 bh 1/2×5(12) = 60
area = 1/2 bh 1/2×9(16) = 56
area = 1/2 bh 1/2×12(19) = 114
F(x)=9x+5, find f^-1(x).
Answer:
interchange the role of x and y
x=9y+5
x-5=9y
x-5 =y
9
so,f^-1(x)= x-5
9
hope it helps.
stay safe healthy and happy.What are the roots of the quadratic equation below?
2x2 - 5x-1 = 0
A baby giraffe eats 75 pounds of leaves a day. How many pounds of leaves does a baby giraffe eat in 31 days? explain your reasoning
Answer:
2325
Step-by-step explanation:
you multiple 31 by 75 it becomes 2325
The table below represents which equation ?
Answer:
D
Step-by-step explanation:
Find the slope by picking two ordered pairs in the table and using the slope formula( y2-y1/x2-x1) to get the slope. The smallest numbers are easiest to work with. (-1,1), (0,-2)
-2-1/0-(-1) = 3/0+1 = -3/1 = m=-3
Use one of the points you used and plug in the x and y values of the ordered pair into the equation with the slope to find your b( y-intercept). (0,-2)
-2= -3(0) +b
-2= 0+b
b=-2
The final equation will only have your slope and b( y-intercept). That should be your answer. Hope this helps!
Final Equation: y=-3x-2
There are 50 pennies in a roll. If you have 150 rolls of pennies, how many pennies do you have?
Answer: 7500
Step-by-step explanation:
multiply 150 by 50
what value do you give rif the
In the monthly payment formula M =
Pr(1 + r)"
(1 + r)" - 1
interest rate is 8.9%?
A. 0.74
B. 0.74
C. 0.0074
D. 0.0089
Answer:
c
Step-by-step explanation:
<3
The monthly rate of interest is 0.0074. Therefore, option C is the correct answer.
What is the rate of interest?An interest rate tells you how high the cost of borrowing is, or high the rewards are for saving. So, if you're a borrower, the interest rate is the amount you are charged for borrowing money, shown as a percentage of the total amount of the loan.
The given rate of interest is 8.9%.
The monthly payment formula is M = Pr(1+ r)ⁿ/(1+ r)ⁿ - 1
Here, rate of interest
= 8.9%/12
= 0.089/12
= 0.0074
Therefore, option C is the correct answer.
To learn more about the rate of interest visit:
brainly.com/question/28236069.
#SPJ7
what's the slope for coordinates (-5,-5) (5,3)?
Answer:
4/5
Step-by-step explanation:
slope = (difference in y)/(difference in x)
slope = (-5 - 3)/(-5 - 5)
slope = -8/(-10)
slope = 4/5
