Answer:
100 pi cm^2
or approximately 314 cm^2
Step-by-step explanation:
The surface area of a sphere is given by
SA = 4 pi r^2
The radius is 5
SA = 4 *pi * 5^2
SA = 4*pi(25
SA = 100 pi cm^2
If pi is 3.14
SA = 100 *3.14 = 314 cm^2
[tex]\large\fbox{\underline{Surfαcє αrєα σf sphєrє ís 314 cm ².}}[/tex]
Step-by-step explanation:◈ Gívєn ◈☞ Rαdíus σf sphєrє = 5 cm
◈ Tσ FínD ◈☞ Surfαcє αrєα σf sphєrє
◈ Fσrmulα nєєdєd ◈☞ Surfαcє αrєα σf sphєrє = 4 π r ²
◈ Sσlutíσn ◈usíng thє fσrmulα
surfαcє αrєα σf sphєrє = 4 π r ²
suвstítutє thє vαluєs
surfαcє αrєα σf sphєrє = 4 × 3.14 × ( 5×5 ) cm ²
mutíplчíng thє vαluєs
surfαcє αrєα σf sphєrє = 100 cm² × 3.14
Hєncє , Surfαcє αrєα σf sphєrє ís 314cm ².
–––––––––☆–––––––––What is 0.08 written as a percent?
8%
0.8%
0.08%
80%
Any Answers and explanation to this?
Answer:
give a thanks first and then ill tell you
Step-by-step explanation:
Answer:
Maybe it's D) or c) if not i'm du.mb and sorry
Step-by-step explanation:
If the car gets 32 miles per gallon how much does it cost you to drive 30 miles when gasoline cost 2.55
Answer:
$2.39
Step-by-step explanation:
30/32* 2.55 = $2.39
The cost to drive 30 miles is $2.39.
Here,
Car gets 32 miles per gallon.
We have to find cost to drive 30 miles when gasoline cost 2.55.
What is Multiplication?
The multiplication of two numbers is called product.
Now,
Car gets 32 miles per gallon.
Cost to drive 30 miles when gasoline cost 2.55 is;
⇒ 30/32* 2.55 = $2.39
Hence, The cost to drive 30 miles is $2.39.
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What is the value x² + 3y / xy, if x=4 and y=2?
Answer:
Step-by-step explanation:
x^2+3y/xy
4^2+3*2/4*2
16+6/8
22/8
Find the number of distinguishable permutations of the letters PEPPERONI. NO LINKS!!!!
This is is one value (and not two values separated by a comma) and it's slightly over 30 thousand.
========================================================
Explanation:
There are n = 9 letters in the word "PEPPERONI"
If we could tell all the letters apart, there would be 9! = 9*8*7*6*5*4*3*2*1 = 362,880 permutations, and that would be the answer.
However, we have repeated letters that we cannot tell apart. The P shows up a = 3 times, and the E shows up b = 2 times. So we need to divide by a!*b! = 3!*2! = 6*2 = 12 to correct for the overcounting. That leads to the final answer of (362,880)/(12) = 30,240
the current value of an investment is 25% more than its initial value. The increase in value is $10 million. What was the initial value of the investment
A.12.5 million
B.40 million
C.35 million
D.100 million
Help me PLEASEEEEEEEEEEEEE
Answer:
part a answer is b and part b answer is 3
Step-by-step explanation:
Write the equation in slope-intercept form. -10x+2y=12
-please help
Answer:
y=5x+6
hope this helps
have a good day :)
Step-by-step explanation:
The slope intercept form for the equation -10x+2y=12 is y= 6+5x
What is slope- intercept form?The slope intercept form is a method used to determine the equation of a straight line in the coordinate plane. The equation of a straight line will be that relation which:
the coordinates of any point on the line must satisfy.the coordinates of any point not on the line will not satisfy.The determination of this equation is straightforward. To find the slope intercept form of a straight line, we would need the slope, or the angle of inclination of this straight line from the x-axis and the intercept that it makes with the y-axis.
Given:
-10x+2y=12
As, we know the slope- intercept form is
y= mx +b
Then writing the equation as the slope intercept form
-10x+2y=12
2y = 12 +10x
Divide both side by 2 to make the coefficient as 1.
y= 12/2 + 10x/2
y= 6 + 5x
Hence, the slope intercept form is y= 6+5x
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Find the Area of the shaded region. Round your answer to the nearest tenth.
Answer:
210 ft^2
Step-by-step explanation:
The figure is made up of a rectangle 15 ft by 12 ft and a triangle with base 15 ft and height 4 ft.
A = LW + BH/2
A = (15 ft)(12 ft) + (15 ft)(4 ft)/2
A = 180 ft^2 + 30 ft^2
A = 210 ft^2
Answer:
210ft²
Step-by-step explanation:
Step one, find the area of the square. --->
A= bh (Area equals base times the height)
15×12=180
Step two, find the area of the triangle.
A=bh÷2 (Area equals base times the height divided by 2)
4×15= 60÷2= 30
Step three, add the solutions together
180+30=210
An angle measures 114° more than the measure of its supplementary angle. What is the measure of each angle
Answer:
33º and 147º
Step-by-step explanation:
x + (x + 114) = 180
2x + 114 = 180
2x = 66
x = 33º
x + 114 = 147º
Is 2.605 a rational number
Answer:
yes 2.605 is a rational number
Select the correct answer.
Mike wants to find the confidence interval for a set of data. He knows the sample size and the sample proportion. Which other piece of information does he need to determine the confidence interval?
A.
the number of favorable responses
B.
the critical value
C.
the standard deviation
D.
the standard error of the mean
its A the critical value because I just took the test and got it right
Answer:
Yeahhhh!! the critical value
Step-by-step explanation:
FOR 50 POINTS. HELP ASAP!!!! John is looking at the eagle on top of a building. The height of the building is 120 ft.
Approximately how many feet is Jack away from the base of the building?
The degree is 60*
Choices are
A.70ft
B.208ft
C.240ft
D.120ft
Answer:
A. 70 ftStep-by-step explanation:
Use trigonometry.
tangent = opposite / adjacentWe have:
opposite = 120 ftangle = 60°adjacent = xSolve for x:
tan 60° = 120/xx = 120 /tan 60°x ≈ 70 ftFareda and Johnny have joined a book club. Fareda has already read 6 books pages and Johnny has already read 8 books. Each month, both students
read another 3 books. Complete the table to show the total number of books each has read after each month. Use the rule "add 3". Choose all the ordered
pairs that represent the number of books Fareda and Johnny have read.
(9,11)
(11.14)
(15,17)
(18,20)
(20,22)
Answer:
(9,11)
(15,17)
(18,20)
Step-by-step explanation:
9-6=3
11-8=3
18-6=12
20-8=12
15-6=9
17-8=9
3*1=3
3*4=12
3*3=9
PLS ANSWER ASAP!! Person with correct answer will be marked brainliest
Answer:
B
Step-by-step explanation:
The 3 angles (6x + 2), 40, 90 lie on s straight line and sum to 180° , that is
6x + 2 + 40 + 90 = 180
6x + 132 = 180 ( subtract 132 from both sides )
6x = 48 ( divide both sides by 6 )
x = 8 → B
What are the x- and y- intercepts of the graph of 9x-3y = 18?
Step-by-step explanation:
9x - 3y = 18
Solve for y:
1. 3y= 9x + 18
2. y= 3x + 6 (This is the equation you will graph)
To graph:
Make a table for y = 3x +6.
If x =0, y=6
If x =1, y=9
If x =-1, y=3
You could get as many points as you like, however you need at least TWO, to be able to draw the line.
LOts of points pls help me
Answer:
Solution given:
l=12in
b=2.7in
h=9.8in
Volume=l*b*h=12*2.7*9.8=317.52in³
nearest measurement is 324in³
option C.324in³ is a required answer.
Answer:
Question:Which of the following volume measurements is the best estimate for the figure above? Round each measurement to the nearest whole number to get your estimate.
A. 360 in³
B. 300 in³
C. 324 in³
D. 216 in³
Answer :C. 324 in³✓Step-by-step explanation:
We're provided with a Cuboid with L = 12 in ,B = 2.7in & H = 9.8 in where,
L = Length of the cuboidB = Width of the cuboidH = Height of the cuboidand we're asked to Find the volume of the solid .
To find the volume of the given cuboid , we'll use the formula to find the volume of cuboid
[tex] \huge\fbox\pink{Area}\huge\fbox\green{=} \huge\fbox\blue{L}\huge\fbox\purple{B}\fbox\green{H} [/tex]
Inserting the value of L,B & H in the above formula
12×2.7×9.8We get
Area↬317.52 in³Estimating it to the nearest no. ,we get 324 in³-------☆ﾟ.･｡ﾟᵴɒƙυᴚᴀ_ƨȶäᴎ❀
Find the value of x in the given
right triangle.
10
x = [?]°
Enter your answer as a decimal rounded to the
nearest tenth.
Enter
Answer:
x = 44.4º
Step-by-step explanation:
sin = opp/hyp
sinx = 7/10 = 0.7
x = arcsin0.7
Use calculator
x = 44.4º
Answer:
44.4 I'm 100% sure
Step-by-step explanation:
What is 17 out of 22 as a percentage?
Answer:
The answer is 77.27%
Step-by-step explanation:
Please mark brainliest!
Enjoy the rest of your day!
Answer:
77.2727.. (repeating)%
or 77 3/11 %
Although im not sure if fractions are accepted in percents, so stick to the first option
Step-by-step explanation:
A percent is simply [tex]\frac{}{100}[/tex]
How many 22's are there in 100? 100/22=4.54 repeating
So 22*4.54 repeating = 100
do the same to both sides of the equation
17 / 22
17*4.54 repeating
77.27272.../100
so 77.27272727... %
f(x) = { 2x + 3
if 1 sr < 4
if x 34
Answer:
[tex]f(7) = 1[/tex]
Step-by-step explanation:
Given
[tex]f(x) = \left[\begin{array}{cc}2x+3&1 <x < 4\\1&x>4\end{array}[/tex]
Required
Determine f(7)
To do this, we make use of
[tex]f(x) = 1[/tex]
Because [tex]7 > 4[/tex]
So, we have:
[tex]f(7) = 1[/tex]
the lenght of a room is twice its breadth and thrice its height if the cost of carpeting the floor at rs 80 per sq metre is rs 9000 find the cost of plastering its walls and ceiling at rs 35 per sq metre
Answer:
Let's define the variables:
L = length of the room
B = breadth of the room
H = height of the room.
We know that:
L = 2*B
L = 3*H
Remember that the area of a rectangle of length L and breadth B is:
A = L*B
Then the area of the floor of the room is:
A = L*B
and L = 2*B, if we replace that, we get:
A = (2*B)*B
A = 2*B^2
Now, we know that the cost of carpeting the floor is $80 per m^2
And the total cost was $9000
Then the number of square meters in the floor (thus, the area of the floor) is:
A = ($9000)/($80) m^2
A = 112.5 m^2
With this, we can find the value of B.
A = 112.5 m^2 = 2*B^2
B = √( 112.5/2) m = 7.5 m
Then the length is:
L = 2*B = 2*7.5m = 15m
And the height is:
L = 3*H
H = L/3 = 15m/3 = 5m
Now that we know all the dimensions of the room, we need to find the area of the four walls, and the area of the ceiling (which is equal to the area of the floor 112.5 m^2)
Now, we will have two walls with an area of:
area = breadth*height = B*H = (7.5m)*(5m) = 37.5m^2
And two walls with an area of:
area = length*height = L*H = 75m^2
Then the total area of the four walls plus the ceiling is:
A' = 2*(37.5m^2) + 2*( 75m^2) + 112.5 m^2
A' = 337.5 m^2
And we know that for each m^2, the cost of plastering is $35
Then for 337.5 m^2, the cost will be 337.5 times $35
Cost = (337.5)*$35 = $11,812.50
PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!!
Select the correct answer.
Esther works for a marketing company. She earns $12 per hour, and she gets a $50 travel allowance every month. Which linear equation could be used to find her monthly pay rate?
A. y = 50x + 12
B. y = 12x + 50
C. y = 12x
D. y = 50x
The linear equation that could be used to find her monthly pay rate will be y = 12x + 50.
What is a linear equation?It is referred to as the relationship between two variables, and a straight line is produced when the linear equation's graph is shown. The equation is referred to as a linear equation in one variable if just one variable is contained in the linear equation.
It is given that, Esther is employed by a marketing firm. She makes $12 per hour and receives a $50 monthly travel reimbursement.
Suppose x be the number of months,
The linear equation could be used to find her monthly pay rate is,
Total amount = Amount per hour×number of hour+ travel allowance
y = 12x + 50
Thus, the obtained linear equation for a given condition will be y = 12x + 50.
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Gina types 150 words in 3 minutes. Linda types 80 words in 2 minutes. How much
longer would Linda take to type 8 pages that contain 500 words on each page?
full working
Answer:
20 minutes
Step-by-step explanation:
It would take 20 minutes longer for Linda to type 8 pages that contain 500 words on each page.
Are these answers correct?
Answer:
Yes, your answers are correct!
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
you are correct!
7
What is the distance from 33, 5) to (3 7.-1
Answer:
7.211
Step-by-step explanation:
I'm going to assume that's supposed to say (33, 5) to (37, -1)
Use the pythagorean theorem: a^2 + b^2 = c^2
"a" is going to be your difference in x values (37 - 33) = 4
"b" is going to be your difference in y values (5 - (-1)) = 6
4^2 + 6^2 = c^2
16 + 36 = c^2
52 = c^2
sqrt(52) = c
7.211 = c
pleaser help me i really need help please
Answer:
V ≈ 706.9 cm³
Step-by-step explanation:
The volume (V) of a cylinder is calculated as
V = πr²h ( r is the radius and h the height )
Here r = 5 and h = 9 , then
V = π × 5² × 9
= π × 25 × 9
= 225π
≈ 706.9 cm³ ( to the nearest tenth )
A rectangular prism has a length of 4 feet, a width of 8 feet and a height of 5 feet. What is the volume of the prism
Write an equation to represent the following description. The difference of seven times a number and 15 is 41.
Answer: 3
7x + 15 = 41 or 7x - 15 = 41
Answer:
7x - 15 = 41
Step-by-step explanation:
The key word is "difference" so keep that in mind. 7 times a number and 15 is 41. The "number" is unknown so a variable can be put in place until the number is known. The whole equation equals 41. The word "and" is where the "difference" or subtraction sign should go. Now we have a translated description! I hope this helps and if I'm wrong, please let me know!
Nearly 100% of the observed occurrences of a random variable x that is normally distributed will fall within three standard deviations of the mean of the distribution of x. True False
Answer:
True
Step-by-step explanation:
Three standard deviation from the mean value of distribution of x comprises of 99.7 % of the values of a given set of data.
However, 68% of the data lies with in one standard deviation
while 95% percent of the data lies within two standard deviations
99.7% is approximately 100% of the observed occurrences.
Hence, given statement is true
What is the area of the figure? Round to the nearest tenth.
3.5 cm
4 cm
A. 14.0 cm
B. 28.0 cm
C. 42.0 cm2
D. 56.0 cm
Answer:
14.0 cm its a
Step-by-step explanation: