Answers
Answer:
Step-by-step explanation:
Givens
r = 5
h = 30
Formula
SA = 2*pi*r^2 + 2pi*r*h
Solution
SA = 2*3.14 *5^2 + 2*3.14 * 5* 30
SA = 50*3.14 + 300*3.14
SA = 157 + 942
SA = 1099 square inches.
Related Questions
Zoom in on the photo:)
True or False? When you are dividing 2 numbers, you have to check to see
if there is a decimal in the divisor. If there is a decimal in the divisor, you
have to multiply that number by a power of ten to move the decimal to the
right. You have to move the decimal the same number of times to the right
in the dividend too. Then you can divide your numbers.
Answers
Answer:
true, have a great day and i hope that helped :)
What method of solving a quadratic equation is shown here? A set of expressions shows the solution of the quadratic equation shown on line 1. Line 2 shows an equivalent expression of two factors. Line 3 show two separate equations with each factor set equal to zero. Line four show two solutions for the value of x. A. Quadratic formula B. Factoring C. Grouping
Answers
Answer:
Factoring
Step-by-step explanation:
When we are solving a quadratic equation by the factorization method, each factor is set as being equal to zero.
The solution of each bracket of factors gives the root of the quadratic equation.
For example;
x2 + 16 = 10x
We now have;
x2 - 10x + 16 = 0
x2 - 8x - 2x + 16 = 0
x(x - 8) -2(x - 8) = 0
(x-2) (x-8) = 0
(x-2) = 0
Then x = 2
Or
(x-8) = 0
x = 8
Hence;
x = 2 or x= 8
A good estimate of the age of the Earth is 4.54 × 10 9 years. What is this number written in standard form?
Answers
hey can you state what's wrong in the given solution.
=》
[tex]0 = 0[/tex]
we know, zero is always equal to zero
=》
[tex]16 - 16 = 20 - 20[/tex]
because, 16 - 16 = 0
and 20 - 20 = 0
=》
taking 4 as common from 16 - 16 and 5 as common from 20 - 20
[tex]4(4 - 4) = 5(4 - 4)[/tex]
now dividing both sides by
(4 - 4)
=》
[tex] \frac{4(4 - 4)}{(4 - 4)} = \frac{5(4 - 4)}{(4 - 4)} [/tex]
=》
[tex]4 = 5[/tex]
because, (4 - 4) in denominators of both sides cancels out (4 - 4) in numerator of both sides.
=》
[tex]2 + 2 = 5[/tex]
we know, 4 = 2 + 2 , so plugging (2 + 2) in place of 4
Answers
Answer:
i also guess 2+2=4 not 5 ╮(╯▽╰)╭
Name the angles that are adjacent to
Answers
Answer:
angle k and n are adjacent to angle j
−
2
x
+
y
=
−
1
2
x
+
5
y
=
7
Answers
Answer:
I got you the answer is X = 14 and Y = 35
Are these proportional? And I need to show work sooo for example on the first question we did in class we wrote down
-3/1
-6/2=-3/1
-9/3=3/1
I hope I’m not asking for too much but I want to start off my trimester strongly.
Answers
Answer:
Step-by-step explanation:
If y is proportional to x,
y ∝ x
y = kx
k = [tex]\frac{y}{x}[/tex]
Here, k = Proportionality constant
For y = -8 and x = -4,
k = [tex]\frac{-8}{-4}[/tex]
k = 2
For y = -4 and x = -2
k = [tex]\frac{-4}{-2}[/tex]
k = 2
For all values of x and y proportionality constant = 2.
For x = 0 and y = 0,
If we graph a line passing through these points, the line will pass through the origin (No y-intercept).
And we know that any line passing through the origin represents the proportional relation between x and y variables.
Therefore, given table represents the proportional relation.
Find the radius of a circle which has a sector area of 9 pi whose central angle is 90 degrees.
Answers
Answer:360/90 = 4
Total area = 4 times that of the sector.
Step-by-step explanation:
A 90 deg sector has 1/4 the area of the circle.
Total circle area = 4*9pi = 36pi
Answer:
The area is A= 3/2π
Step-by-step explanation:
The area of whole circle is:
A
c
=
π
×
r
2
=
9
π
The central angle
60
o
is
1
6
of a full angle, so the area of the sector is:
A
s
=
1
6
A
c
=
1
6
×
9
π
=
9
6
π
=
3
2
π
Can someone help me with my homework, please?
Answers
Answer:
6 is 45° 1 is 45° x=10 hope this helps
Answer:
1) 45. Since it is congruent/corresponding to angle 7, which is 45 degrees.
2) 135. Because a straight line is 180 degrees, I substracted 45 from 180, getting 135 degrees, the measure of angle 1.
3) x = 20. Look at the work below.
Step-by-step explanation:
180 - 45 = 135
____________________________________________________________
5x + 35 = 135
-35 -35
5x = 100
divide by 5
x = 20
A pendulum's first swing has an arc of 36 inches. As the pendulum swings back and forth, the arc length for each successive swing is 95% of the previous swing. If this pattern continues, at which swing of the pendulum will the length of the arc be less than 27 inches? A. 5th B. 6th C. 7th D. 9th
Answers
Answer:
7th
Step-by-step explanation:
Given :
Arc length on first swing = 36 inches
After successive swing, arc length decreases by 95%
Length on 2nd swing = 0.95 * 36 = 34.2
Length on 3rd swing = 0.95 * 34.2 = 32. 49
Length on 4th swing = 0.95 * 32.49 = 30.8085
Length on 5th swing = 0.95 * 30.8085 = 29.268075
Length on 6th swing = 0.95 * 29.268075 = 27.80467125
Length on 7th swing = 0.95 * 27.80467125 = 26.4144376875
26.4144376875 < 27
Hence, length falls below 27 on 7th swing
Complete the equation to show how to find the sum of 7/10 and 20/100. Write your answers in the boxes. HALP MEH PLS
Answers
Answer:
9/10
Step-by-step explanation:
To solve this you need a common denominator, here we'll make it 10, leaving 7/10 and simplifying 20/100 by dividing both the 20 and 100 by 10 to get our common denominator of 10. Now we have 7/10 + 2/10 which is 9/10.
a student finshed 8 of her quiz problems in class. if the ratio of problem she finished to problems she still had left was 4:1 how many home work problems did she have total
Answers
Answer:
10
Step-by-step explanation:
I can't really explain this well but, when you double 4 you get 8 (which is how many she did), so since you doubled 4 you also have to double 1 which would be 2. Then add 8 and 2 and you get 10
Find (-3/7) divided (-1 1/14)
Answers
Answer:
2/5
Step-by-step explanation:
first, we convert the mixed fractions to improper fractions,
[tex]-1\frac{1}{14}=\frac{15}{14}[/tex]
so then we find what [tex]-\frac{3}{7}[/tex][tex]\div[/tex][tex]-\frac{15}{14}[/tex]
[tex]-\frac{3}{7}[/tex][tex]\div[/tex][tex]-\frac{15}{14}[/tex] = [tex]-\frac{3}{7} * -\frac{14}{15}[/tex]
and that equals [tex]\frac{3*14}{7*15}[/tex] , which equals [tex]\frac{42}{105}[/tex]. We can simplify that to 2/5
plz help me with this :(
Answers
Answer:
m is equals to 49 degree + 31 degree so which means it's 80°
pls help me 10 points
Answers
Answer: Approximately 20 miles per gallon
Step-by-step explanation:
The line of best fit is an approximate average. In order to predict the fuel efficiency you just estimate the place where x = 4800 and see what the y value of the line is for that point. In this case it's around 20 miles per gallon.
10 pounds of onions cost $100 how many pounds of onions can get with $150
Answers
Answer:
15
Step-by-step explanation:
$100 / 10 pounds = $10 / pound
$150 / 10 dollars = 15 pounds of onions
Triangle ABC ~ Triangle DEF and the area of Triangle DER is 11. 25 square centimeters. Find DE and DF.
Answers
Answer:
DE=3.75
DF=6
Step-by-step explanation:
Look at this graph what is the y- intercept?
Answers
help help help help help help help help
Answers
I believe the answer is (3,4)
Please answer this quickly
Answers
Hope this helps!!
Type the slope of the line PARALLEL to y = 6X -3 *
Your answer
Answers
Answer:
6
Step-by-step explanation:
Look for the x, the number before x tells you the slope
The measure of angle A is equal to x degrees. The measure of angle B is equal to 95 degrees. Angles A and B are supplementary. Find m angle A
Answers
Answer:
95°
Step-by-step explanation:
Since both angles are supplementary, they have the same degree.
If angle B = 95°, angle A is also = 95°
Write a real-world problem that could be
represented by the equation 2x + 5 = 35.
Then solve the equation.
Answers
Answer:
2x+5=35.
2x+5-5=35-5
2x=30
2x/2=30/2
x=15
How would you complete this table also it has to show the work
Answers
Answer:
cweds
Step-by-step explanation:
Nine is which percent of 25?
A. 16%
B. 27%
c. 36%
D. 225%
E 270%
Answers
Answer:
36%
Step-by-step explanation:
I don't know if you want the explanation or not.
A material that does not conduct heat well can be used as __________.
a heat source
b thermometer
c fuel
d insulation
Answers
plzz help it's due today
Answers
Answer:
c
Step-by-step explanation:
c c
Answer:
AC
AC is the only line wich pentrate the circle
The daily advertising revenue (in dollars) for a local newspaper is given by the function R(t) = -18t2 + 720t – 103, where t is number of years that the paper has been in production. What is the daily advertising revenue after the paper has been in business for 15 years?
Answers
Answer:
6647
Step-by-step explanation:
The computation of the advertising revenue for 15 years is shown below:
Given that
r(t) = -18t^2 + 720t - 103
where
t = number of years = 15
now put the value of t in the above equation
= -18(15)^2 + 720(15) - 103
= -4050 + 10,800 - 103
= 6647
Please I need the answer which one is it
Answers
Answer:
33
Step-by-step explanation:
33
what is the average of these numbers
3, 5, 6
Answers
Answer:
4.66666666667.
Step-by-step explanation:
3+5+6=14, and 14 divided by 3 (the number of numbers given) is 4.66666666667.