Answer:
382 inches
Step-by-step explanation:
Given that :
The size of the soccer ball that Adrian and Violetta got is = 4
The diameter of the soccer ball is = 9 inches
Therefore, the radius of the soccer ball is, r = [tex]$\frac{9}{2}$[/tex] inches
So the volume of the soccer ball is :
[tex]V = \frac{4}{3} \pi r^3[/tex]
[tex]V = \frac{4}{3} \times \frac{22}{7} \times \left(\frac{9}{2}\right)^3[/tex]
[tex]V = \frac{4}{3} \times \frac{22}{7} \times \frac{9}{2} \times \frac{9}{2} \times \frac{9}{2}[/tex]
V ≈ 382 inches
6 bulbs cost Rs 560,find the cost of 2 dozen bulbs.
24/6=4
2 dozen (24) is 4 times as many as 6
multiply 560 times 4 to get cost
560×4=2,240
Answer is 2,240 Rs
A traffic consultant wants to estimate the true proportion of cars on a certain street that have more than two occupants. She stands at the side of the road for two hours on a weekday afternoon and flips a coin each time a car approaches. If the coin comes up heads, she counts the number of occupants in the car. After two hours, she has counted 103 cars, 15 of which had more than two occupants. Which condition for constructing a confidence interval for a proportion has she failed to satisfy
Answer:
The data is a simple random sample from the population of interest.
Step-by-step explanation:
Conditions necessary to consider when constructing a confidence interval include using a large sample size, which should be greater Than or equal to 30 for n and a sample proportion of np ≤ 10. Importantly the sample must be a random sample drawn from the population, meaning that all the population of interest must have equal chances of being a part of the sample data. However, the scenariomabiveb, violates this condition as the sampling design is not completely randomized. Those who do not ply the route on that certain day have no Chaves of being part of the sample.
A bag contains 3 red marbles and 4 blue marbles. A marble is taken at random from the bag and replaced. Another marble is taken from the bag.
Work out the probability that the two marbles taken from the bag are the same colour.
Give your answer as a fraction.
Answer:
25/49
Step-by-step explanation:
probability of red and red is (3/7)(3/7) = 9/49
Probability of blue and blue is (4/7)(4/7) = 16/49
Probability of same color = prob. of red and red or prob. of blue and blue
= 9/49 + 16/49
= 25/49
[tex]2x^{2}-3x-5[/tex]
[tex]{ \sf{2 {x}^{2} - 3x + 5}} \\ \\ { \dashrightarrow{ \sf{2 {x}^{2} - (5x - 2x) - 5}}} \\ \\ { \dashrightarrow{ \sf{ 2{x}^{2} - 5x + 2x - 5}}} \\ \\ { \dashrightarrow{ \sf{x(2x - 5) + (2x - 5)}}}[/tex]
[tex]{ \dashrightarrow { \sf{(2x - 5)(x + 1)}}}[/tex]
Will give brainiest to best answer
Answer:
1.V=288, A=288
2. V=460, A=494
3. V=672
4. A=898
Step-by-step explanation:
1.
V= l×b×h
288
A=2(lb+lh+bh)
=288
2.
V¹= larger cuboid =320
V²=smaller cuboid=140
V=460
A¹=328
A²=166
A=494
3.
V=(Area of cross section)×length
=672
4.
Area of cube=l³
³√294=6.65
add 3
9.65³=898
one can of waterproofer covers 100 square feet. you want to apply two coats of waterproofer to the wooden crates. How many cans of waterproofer do you need?
Answer:
Hello! its 1
Step-by-step explanation:
The model shows 4 = 2x - 2 What value of x makes the equation true?
Answer:
You showed no model. However, looking at this equation it seems the answer would be x=3.
Step-by-step explanation:
Add 2 to both sides which leaves you with 6=2x and then divide both sides by 2 to get x=3.
A line passes through the point (-2,7) and has a slope of -5
Answer:
y - 7 = -5(x + 2) a = -1Step-by-step explanation:
The equation of a line which passes through (x₁, y₁) and with slope of m in point-slope form:
y - y₁ = m(x - x₁)
m = -5
(-2, 7) ⇒ x₁ = -2, y₁ = 7
y - 7 = -5(x - (-2))
y - 7 = -5(x + 2)
(a, 2) ⇒ 2 - 7 = -5(a + 2)
-5 = -5a - 10
5a = 5 - 10
5a = -5
a = -1
9. Find the value of x
Answer:
13 = x
Step-by-step explanation:
Remark
The six exterior angles add up to 360. In fact the exterior angles of any closed convex figure adds up to 360.
You can try this with simple figures. An equalateral triangle has 3 equal exteror angles. They are all 120 degrees 3*120 = 360
A square has 4 exterior angles. All 4 of them are 90 degrees. The sum of them is 90 * 4 = 360
Givens
Angles
3x+ 6,7x - 11, 62, 4x + 7 , 6x-5, 41The Total is 360 degrees
Solution
3x + 6 + 7x - 11 + 62 + 4x + 7 + 6x - 5 + 41 = 360 Combine like terms
20x + 100 = 360 Subtract 100 from both sides
20x = 360 - 100
20x = 260
x = 13
Check
3x + 6 = 457x - 11 = 80 624x + 7 = 596x - 5 = 73 41 Total 360The average petrol consumption of a vehicle is 1 gallon per 35 km. The cost of 1 litre of petrol is $49. Fund the cost of petrol for a journey of 280 km.
(take 1 gallon=4.5 litres)
Step-by-step explanation:
Total petrol consumption of the journey=
Total distance travelled ÷ Average petrol consumption
[tex] = 280 \div 35 \\ = 8 \: gallons[/tex]
Given 1 gallon = 4.5 litres,
[tex]8 \: gallons \: = 8 \times 4.5 \\ = 36 \: litres[/tex]
Total cost of petrol for this particular journey = Petrol consumed x cost of 1 litre of petrol
[tex] = 4.5 \times 49 \\ = 220.50 \: dollars[/tex]
Someone help plz and plz make sure it’s right
Answer:
Ruffly 6.5
Step-by-step explanation:
a^2+b^2=C^2
In this case we need to find a so we do c^2-b^2.
9.8^2-7.3^2=42.75
Square root of 42.75 is ruffly 6.5
Answer:
6.5 km
Step-by-step explanation:
hypotenuse (h)=9.8km
base(b)=7.3km
perpendicular (p)=?
we know,
p^2 =h^2-b^2
p^2=(9.8)^2-(7.8)^2
p^2= 96.04-53.29
p^2=42.75
(p)^2=(6.5)^2
p=6.5km
A council tax bill costs £1920 annually if the bill is paid in monthly instalments how much will the payments be per month
Answer: 160
Step-by-step explanation:1920 divided by 12
If she would have left the money in the account for another 2 years before withdrawing, how much interest would the account have earned?
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 12% more interest
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
if snoop drove 114 km in2 hr. what is his average speed
Answer:
57 km per hour is the average speed
Step-by-step explanation:
Wich set of ordered pairs does not represent a function.
Please help.
Answer:
D.
Step-by-step explanation:
A function has to have only one y-value for every x-value. This means that D is not a function because it contains (6,2) and (6, 4), which means that there are 2 different y-values for the x-value of 6.
The angle of elevation from a car to a tower is 32 degree. The tower is 150 ft. tall. How far is the car from the tower? Round to the nearest tenth.
Answer:
240.1 ft (nearest tenth)
Step-by-step explanation:
Please see the attached picture for the full solution.
#1: Find the volume of the cylinder below. Use 3.14 for . Round your answer to the nearest tenth, if necessary. *
Answer:
Volume of Cylinder=πr²h
22/7*2/1*2/1*5/1=
440/7=62.857 to nearest tenth
62.860, if u like u put the zero.
10) On Tuesday Imani bought eight hats. On
Wednesday half of all the hats that she had
were destroyed. On Thursday there were
only 21 left. How many did she have on
Monday?
Please help me with this math problem
Answer:
what Type of question is that
20 points! Please help me out here!
Find the volume of a pyramid with a square base with a perimeter of the base is 5.7 cm in the height of the pyramid is 8.6 
Answer:
try 28.4 inches to the 3rd power
Step-by-step explanation:
simplify 4/9 square root
Answer:
4/9 square root
= √(4/9)
= √4/√9
= 2/3
4/9=16/36
4/6=2/3
hope it helps:))))))
What is the value of x, given that RS||XY
Answer:
8
Step-by-step explanation:
x/16 = 6/12
cross multiply
12x=6*16
12x=96
divided by 12
x=8
What is the volume of the cylinder below? Write your answer in terms of π
Answer:
The answer would be 414 . good luck ^^
Α = πr2
b) Find the value of A when u = 3.142 and r = 5
Answer:
A = u(5)^2
= 78.55
Just substitute r and u
l think hai
l am not sure
lt is wrong than l am sorry
For a magic trick , Ashley has a classmate pick one card from a standard deck of cards . what is the probability of Ashley 's classmate selecting a heart ?
A . 1/4
B. 1/2
C. 1/25
D. 1/6
Answer:
1/4
Step-by-step explanation:
The sales tax on clothing in Louisiana is 4% . Calculate how much tax you need to pay on a dress if it costs $19.50 before before tax. Round your answer to the nearest cent.
Answer:
.78 cents
Step-by-step explanation:
To find the tax amount on any number, divide that number by 100 and then multiple it by the tax percentage.
In this case that would look like: $19.50/100 times 4 =.78
Vikash placed four 50 cm pieces of wood end to end .In meters how long are the pieces of wood altogether?
Answer:
.5 meters
Step-by-step explanation:
Well we know each centimeter is .01 of a meter so 50 * .01 is .5
There is .5 meters of wood in together
Answer:
2 meters
Step-by-step explanation:
there are 100 cm in a meter. 4 x 50cm = 200cm
so 2 meters.
Max has sticks of lengths 6, 7, 8, and 10 inches. He wants to make a right triangle for an art project. Which 3 sticks should he use? 6 in., 7 in., and 8 in. 6 in., 7 in., and 10 in. 6 in., 8 in., and 10 in. 7 in., 8 in., and 10 in.
Answer:
6in, 8in and 10in
Step-by-step explanation:
For a right angled triangle :
The hypotenus, thee longest side in The triangle should be :
Hypotenus = sqrt((opposite² + adjacent²))
The most appropriate from the option would be :
6in, 8in and 10in
Hypotenus = sqrt((6² + 8²))
Hypotenus = sqrt(36 + 64)
Hypotenus = sqrt(100)
Hypotenus = 10
Answer:
C. 6 in., 8 in., and 10 in.
Step-by-step explanation:
Just did it on edge
Find the length of the hypotenuse?
11 cm
60°
Answer:
19.7ft
Step-by-step explanation:
i just know
Answer: x=22.0 (nearest tenth)
Step-by-step explanation:
For this question you have to find out whether you are using Sin, Cos, Tan.
To which one you are using you can use SOH CAH TOA to help you.
SOH- The 'S' is for Sin and then the 'O' and the 'H' is for Opposite over Hypotenuse.
CAH- The 'C' is for Cos, then the 'A' and the 'H' is for Adjacent over Hypotenuse.
TOA- The 'T' is for Tan, the 'O' and the 'A' is for Opposite over Adjacent.
Because we have the Adjacent (angle next to 60°) and the Hypotenuse we would be using Cos.
So first you would write:
Cos 60=11/x
Then we would have to do the inverse to 'undo' the equation to get x on it's own. This would then look like:
x Cos 60=11
Then we do the inverse again:
x=11/Cos 60
so, x=22.0 (to the nearest tenth)
Hope this helps :)