Someone help me solve this
Step-by-step explanation:
I hope you understand what I wrote
its asking for the surface area of the sphere
Answer:
89^2π
Step-by-step explanation:
Using the formulas
A=4πR2
D=2r
Solving for A
A=πD2=π·89^2≈24884.55541
A scuba diving resort hotel offers divers two plans. Plan A gives 3 nights’ lodging and 4 dives. Plan B gives 5 nights’ lodging and 8 dives. How much does it cost for each night and each dive?
Answer:
x = 35 and y = 100
Step-by-step explanation:
Let x = dollar cost per dive and y = dollar cost per night.
ATQ,
4x+3y = 440 .....(1)
and
8x + 5y = 780 .....(2)
Multiply equation (1) by 2.
8x+6y = 880......(3)
Subtract equation (3) from (2).
8x + 5y -(8x+6y)= 780-880
-y = -100
y = 100
Put the value of y in equation (1).
4x+3(100) = 440
4x = 440-300
4x = 140
x = 35
Hence, the value of x is 35 and that of y is 100.
Stefan sells Jin a bicycle for $125 and a helmet for $18. The total cost for Jin is 130% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend originally? How much money did he make by selling the bicycle and helmet to Jin?
Answer:
Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.
Step-by-step explanation:
Since Stefan sells Jin a bicycle for $ 125 and a helmet for $ 18, and the total cost for Jin is 130% of what Stefan spent originally to buy the bike and helmet, to determine how much did Stefan spend originally and how much money did he make by selling the bicycle and helmet to Jin, the following calculations must be performed:
130 = 125 + 18
100 = X
100 x (125 + 18) / 130 = X
100 x 143/130 = X
14,300 / 130 = X
110 = X
143 - 110 = 33
Therefore, Stefan originally spent $ 110 on the bike and helmet, with which he is making a profit of $ 33.
ILL MARK BRAINLIEST.
Which One Doesn't Belong? Determine which equation fromthe four below doesn't belong and justify your answer. Could there be a different answer?
A. solve for x: 2x + 6 + 1x = 3x + 6
B. solve for x: 5x + 6 + -2x = 3x + 6
C. solve for x: 3x + 7 = 3(x +2)
D. solve for x: 2x + 6 = 3x + 7
Answer:
c
Step-by-step explanation:
c because you would get fals as the answer because to solve you first distribute so you would get 3x+7=3x+6 and both 3 x's would cancel out so you would get 7=6 so that would be false
will name brainliest
Answer:
14.1 =x
Step-by-step explanation:
Since this is right triangle, we can use trig functions
sin theta = opp/ hypotenuse
sin 42 = x /21
21 sin 42 = x
14.05174273 =x
Rounding to the nearest tenth
14.1 =x
Answer:
x = 14.1 (Rounded to the nearest tenths)
Step-by-step explanation:
Since the opposite side of the angle given needs to be found out and hypotenuse, Sin ratio would be used;
Sin(42) = [tex]\frac{x}{21}[/tex]
=> Now multiply 21 on both sides of =, in order to isolate x;
Sin(42) * 21 = x
14.1 = x
Hope this helps!
Madison earned $80 last month pet sitting in her
neighborhood. She spent $54 and put the remainder of the
money in her piggy bank. What percent of her allowance
Madison put in her piggy bank?
A local movie theater was showing them
Answer:
26
Step-by-step explanation:
Subtract
Answer: 32.5%
Step-by-step explanation:
80 - 54 = 2626/80 × 100 = 32.5%If PQRS is a parallelogram, what is the value of y?
O A. 44
B. 60
C. 52
O D. 26
O E. 48
O F. Cannot be determined
Answer:
C. 52
Step-by-step explanation:
If this is a parallelogram then sides PS and QR must have the same length. If PS is 13 then 1/4y must equal 13. 1/4 of 52 is 13 meaning y must equal 52.
Answer:
52 is right
Step-by-step explanation:
Find the perimeter of the image below: (4 points)
two coins are tossed together What is the probability of obtaining
(1)exactly one tail
(2)at least one head
(3)no tails?
Amelia volunteers at her town's animal shelter. Every day, she puts out 10 ounces of food for each of the 8 dogs. If dog food comes in 25-pound bags, how many days will one bag of dog food last?
Answer:
5 days
Step-by-step explanation:
dogs, combined, eat 80 ounches of food daily
there are 16 ounces in one pound so there are 25x16, or 400 ounces, in a 25-pound bag
400/80 = 5
25-pound bag would last 5 days
One bag of dog food volunteered by Amelia, Which have quantity of 25 pounds will last for 5 days.
What is ratio?
Ratio is mathematical term, which we use for comparing two or more terms. basically it indicates that how much big or small is number in compared to another.
Given that,
Every day, Amelia puts out 10 ounces of food for each of the 8 dogs.
Dog food comes in 25-pound bags.
And it is know that,
1 pound = 16 ounce;
so by that way it can state that,
Dog food for 25-pound bag will be equal to;
25*16
400 ounce.
Everyday requirement of dog food is 8*10 = 80 ounce/day
Number of days food will last= Available quantity/Everyday requirement
Number of days food will last= 400/80
Number of days food will last= 5 days
Hence, One bag of food will be enough for 5 days.
To know more about ratio check:
https://brainly.com/question/1504221
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Can someone plz help me with this one problem plz plz!!!
Answer:
50.27
Step-by-step explanation:
thats the answer I worked on a laptop so i dont have work.
Answer:
4^4 = 16
16 x 3.14 = 50.24
Step-by-step explanation:
Formula of an area of a circle:
3.14(pi) x r(radius)^2(squared)
Match each cone’s measures to its corresponding volume.
•base area=16in2 height=6in
•Diameter=12in height=5in
•Radius=5in height=4
V=60 in3
V=100/3 in3
V=32 in3
Answer:
Step-by-step explanation:
Match each cone’s measures to its corresponding volume.
The formula for the volume of a cone is given as:
πr²h/3
a) base area=16in² height=6in
Base area of a cone = πr²
Hence, volume of this cone = 16in² × 6 in
= 96in³
•Diameter=12in height=5in
•Radius=5in height=4
V=60 in3
V=100/3 in3
V=32 in3
Answer:
Radius= v=100/3 pie in ^3
base area= v=32 pie in. ^3
Diameter v=60 pie in ^3
question in photo! no need to explain answer,
Answer:
i its 3 or 4
Step-by-step explanation:
Can someone pls help me!!! NO LINKS... I will mark brainiest to.
Which of the following are abiotic factors in an ecosystem? (select all)
water
trees
sun
grass
sand
PLEASE HELP ASAP!! GIVING AWAY BRAINLY if correct AND PLUS 100 pts
Circle A is located at (6, 5) and has a radius of 4 units. What is the equation of a line that is tangent to circle A from point C (2, 8)?
x = 2
y = −0.75x + 9.5
y = 1.33x + 1.66
x = 8
Answer:
x=2
Step-by-step explanation:
got it right on the test i promise
The equation of the line that is tangent to circle A from point C (2, 8) is x = 2 option (A) x = 2 is correct.
What is a circle?It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
It is given that:
Circle A is located at (6, 5) and has a radius of 4 units.
First, find the slope of the radius
As we know, the ratio that y increase as x increases is the slope of a line. The slope of a line reflects how steep it is, but how much y increases as x increases. Anywhere on the line, the slope stays unchanged (the same).
[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]
The line passes through (2, 8) and (2, 5)
y - 5 = (-3/0)(x -2)
-x + 2 = 0
x = 2
Thus, the equation of the line that is tangent to circle A from point C (2, 8) is x = 2 option (A) x = 2 is correct.
Learn more about circle here:
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Students got to choose what game they wanted to play in gym class. The ratio of people wanting to play kickball to dodgeball was 7:5. what percent of the students wanted to plau dodgeball? (round to the nearest percent)
Answer:
7%
Step-by-step explanation:
Because the ratio was 7 to 5 which means 7 people wanted to play kickball and 5 percent wanted to play dodgeball
solve it please, (√9 + √9) ASAP
Answer:
6
Step-by-step explanation:
(sqrt(9)+sqrt(9))
3+3
6
Answer:
6 is the answer.
Step-by-step explanation:
(√9 + √9) = ?
→ √9 + √9
→ 3 + 3 = 6
Janice is 7 years older than Tam. Complete the table, and then graph this situation.
Tam
x(years)
2 9
4 ?
6 ?
8 ?
Answer:
The table in the exercise can be completed with the next results:
x y 2 9 4 11 6 13 8 15Step-by-step explanation:
As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:
y = x + 7Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:
When x is 2:
y = 2 + 7y = 9When x is 4:
y = 4 + 7y = 11When x is 6:
y = 6 + 7y = 13When x is 8:
y = 8 + 7y = 15At last, to obtain the graph you can use the formula made: y = x + 7, and you'll obtain a graph like the attached picture, where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7.
How many inches are in 2 yards, 3 feet?
Answer:
3 feet = 36 inches
2 yards = 72 inches
Add them together to get:
108
HELP PLEASE! THANKS.
FILLER FILLER FILLER FILLER
Step-by-step explanation:
your answer is right now
What is the equation of a line with a slope of 4 and a y-intercept of 2?
Answer:
y=4x+2 or f(x)=4x+2
Step-by-step explanation:
This is because the equation format for a line is y=mx+b, the slope is m and the y-intercept is b. So all you have to do is fill it out to get y=4x+2. Or the other way I listed the equation is right too. Hope this helps!
A cylinder has a radius of 5 cm and a height of 12 cm, what is the volume?
Step-by-step explanation:
In a cylinder
Radius=r=5cmHeight=h=12cmWe know that
[tex] \boxed { \sf \: volume = \pi {r}^{2} h} \\ \rm \rightharpoonup \: \frac{22}{7} \times {5}^{2} \times 12 \\ \rm \rightharpoonup \: \frac{22}{7} \times 25 \times 12 \\ \rm \rightharpoonup \: \frac{6600}{7} \\ \rm \rightharpoonup \: 942.8cm {}^{3} [/tex]
Answer:
approx. 943 cm^3
Step-by-step explanation:
π × 5^2 x 12 = approx. 943 cm^3
A butterfly has a wingspan of 66 mm and a height of 6 cm.
Which is greater, its wingspan or its height?
Answer:
wingspan
Step-by-step explanation:
there's 10 mm in every cm
Solve 3-²I need work shown
Answer:
1/9
Step-by-step explanation:
Answer:
its 987556467724
Step-by-step explanation:
I took quiz and got it right thid my proof
Please help me please I really need help.
Answer:
B. 113°Step-by-step explanation:
Tc = R + (Th - R)e^(-0.036t)Substitute values and solve for Tc:
Tc = 68° + (146° - 68°)e^(-0.036*15)Tc = 113.45° ≈ 113°Correct choice is B
I’LL MARK AS BRAINLIEST!!! Plz no links
Answer:
6 people
Step-by-step explanation:
75% of 8 is 6
multiply 8 by the decimal .75
6x + 2y = 12
5x + 2y = 8
Answer:
I searched it up and took a screenshot
Step-by-step explanation:
Here they are:
Btw the 1st one is for 6x + 2y = 12 and the second one is for 5x + 2y = 8.
Hope this helps! : )
**100 POINTS**
To evaluate the quality of their product, a manufacturer of cell phones checks every 50th phone off the assembly line. Out of 200 phones tested, 4 are defective. The manager concludes that the 2% of the cell phones produced will be defective.
Unbiased, systematic random, valid.