Answer:
D: 21.23 sq in
Step-by-step explanation:
A tennis ball is a sphere, so we're going to use the surface area of a sphere formula. (4πr²)
Remember that radius is HALF of the diameter, which in this case is 2.6. This means the radius is 1.3.
π represents 3.14
Once you plug the values into the above equation, you should receive the above answer.
Student tickets cost $2.00 and everyone else
is $4.00. If $500 was made by selling 175
tickets, how many student tickets were sold?
Answer:
Student =100
Step-by-step explanation:
Deshad runs a river tubing company that serves 300 customers a day during sunny, summer days. He knows that 45% of the customers rent life jackets. Suppose that Deshad calculates the daily proportion p ^ on top of customers who rent life jackets from his sample of 300. We can assume the customers each day represent a random sample
Here acccording to the question,We are examining the conditions under which the sampling distributions of the sample proportions given.
What is sampling distribution?
Sampling distribution is a statistic that determines the probability of an event based on data from a small group within a large population. Its primary purpose is to establish representative results of small samples of a comparatively larger population. Since the population is too large to analyze, you can select a smaller group and repeatedly sample or analyze them. The gathered data, or statistic, is used to calculate the likely occurrence, or probability, of an event.
Sampling distribution According to the given ScenarioWe are examining the conditions under which the sampling distributions of the sample proportions appear uniform, roughly normal, skewed to the left or skewed to the right.
When np10 and n(1p)10, where n is the sample size and p is the sample of proportions, are true, we know that the sampling proportions of the sample distributions will have a normal shape.
Aforementioned that our sample size is 300 people and that p = 0.45, we can use the given data to calculate
Successes anticipated: np= 300(0.45) = 135 10
Failures predicted: n(1p)=300 (10.45)=165 10
Since both of these statements are accurate, sample distribution sampling proportions will have a normal shape.
Because we anticipate each sample to have at least 10 successes and 10 failures, we have a normal sampling distribution.
As a result, the sample distribution has a roughly normal shape.
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the sides of a triangle are 7,10,12 cm long. Classify the triangle
Answer:340 cm long
Step-by-step explanation: multiply 7 x 10 then 70 x 12
Find the distance between the following two points: (3,-6) (-1,-8)
Twice the sum of a number and three is subtracted from six times a number
Answer: 2(x+6)=3(x-3)
Step-by-step explanation:
On a map, the distance from Langhorne to Tannersville measures 2 centimeters. What is the actual distance if the scale of the map shows that 1 centimeter is equal to 30 kilometers?
Answer:
I believe the answer is 60 kilometers.
Step-by-step explanation:
In a circle, an angle measuring 5. 5 radians intercepts an arc of length 8. 4. Find the
radius of the circle to the nearest 10th.
The circle's radius is equal to 3.659 or 3.7.
What is Radius?A circle's or a sphere's radius is the length of the line between the center and the edge.
From the center of the circle or sphere to any point on its perimeter, the radius' length is constant.
Its diameter is halved by its length.
A line segment from a circle's or sphere's center to its perimeter or boundary is known as the radius in geometry. I
t is a crucial component of spheres and circles and is frequently abbreviated as "r."
When discussing multiple radiuses at once, the plural form of radius is "radii." the longest line connecting any points on the opposite side of a circle or sphere.
Hence, The circle's radius is equal to 3.659 or 3.7.
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The ratio of the number of blue fish to the number of red fish at a pet shop is 2 to 3. There are 30 blue at the pet shop. How many red fish are at the pet shop?
Please no files!
ASAP PLS PLS!!!!!!!!!!!!!
Answer:
60
Step-by-step explanation:
base times height
10 times 6
60
I forgot how to do this- we are doing a review and I dont know how to do this-
Answer:
36.373 not rounded
Step-by-step explanation:
Using pythagoras theorem
a^2 =b^2 +c^2
a always is the hypotenuse (the opposite side to the 90 angle)
b and c are the other sides obviously
So here we have a = 38
let b =11
So for c =sqrt(38^2 - 11^2)=36.373
The height of adult males on a given South Pacific Island is approximately normally distributed with mean 65 inches and standard deviation of 4 inches. a). Taller than 64 inches b.) shorter than 62 inches c.) between 64 inches and 68 inches d.) between 58 and 68 inches e.) taller than 58 inches
Answer:
a) 0.59871
b) 0.22663
e) 0.95994
Step-by-step explanation:
The height of adult males on a given South Pacific Island is approximately normally distributed with mean 65 inches and standard deviation of 4 inches.
We solve using z score
z = (x-μ)/σ, where
x is the raw score
μ is the population mean = 65 inches
σ is the population standard deviation = 4 inches
a). Taller than 64 inches
This means x > 64
Hence,
64 - 65/4
=- 1/4 = -0.25
P-value from Z-Table:
P(x<64) = 0.40129
P(x>64) = 1 - P(x<64) = 0.59871
b.) shorter than 62 inches
Hence,
62 - 65/4
=- 3/4 =- 0.75
P-value from Z-Table:
P(x<62) = 0.22663
c.) between 64 inches and 68 inches
Hence,
for 64 inches
64 - 65/4
=- 1/4 = -0.25
P-value from Z-Table:
P(x = 64) = 0.40129
For 68 inches
Hence,
68 - 65/4
= 3/4= 0.75
P-value from Z-Table:
P(x = 68) = 0.77337
d.) between 58 and 68 inches
e.) taller than 58 inches
Hence,
58 - 65/4
= -6/4 = -1.5
P-value from Z-Table:
P(x<58) = 0.040059
P(x>58) = 1 - P(x<58) = 0.95994
Lines m, n, and I are parallel. Line w intersects each line, as shown in the diagram below.
Based on the angle measures in the diagram, what is the value of x?
Answer:
120
Step-by-step explanation:
vertical angles are congruent :)
What is the SHAPE of the 22nd figure?
The color of the 15th figure is green.
The shape of the 40th figure star.
The shape of the 22nd figure triangle.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
We have,
The pattern of shapes we get is:
circle - Triangle - Square - Star
The pattern of color we get is:
Purple - Red - Green
Now,
The color of the 15th figure.
= 15 is a multiple of 3
= 5 x 3
So,
Green will be the color of the 15th figure
Now,
The shape of the 40th figure.
= 40 is a multiple of 4
= 10 x 4
So,
Star will be the shape of the 40th figure.
Now,
The shape of the 22nd figure.
= 22 ÷ 4
We get 2 as the remainder.
So,
Triangle will be the shape of the 22nd figure.
Thus,
The 15th figure color is green.
The 40th figure is a star.
The 22nd figure is a triangle.
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Help :P Easy math =D
Answer
16
STEP BY FŔIGGIN STEP
simplify the first one into an exponent
-
2 exponent 8
then the second one
-
2 exponent 4
Now simplify the exponents
2 exponent 8 = 256
2 exponent 4 = 16
Use that knowledge to divide the two
256 ÷ 16 = 16
Hope I helped! :)
Answer: 16 =D
Step-by-step explanation:
2.2.2.2.2.2.2.2/2.2.2.2=16
hope this helped
brainliest
Give the most precise classification for each figure
Answer:
D
Step-by-step explanation:
Answer:
A. Quadrilateral
Step-by-step explanation:
quardrilateral Shapes have 4 corners. and That is the Most Precise classification of this Shape
5.
4.2 cm
4.2 cm
square centimeters
The total area of triangle in square centimeters is 56.7cm squared .The three angles of the triangle add up to 180 degrees.
what is triangle ?The term "trigon" is occasionally (though not frequently) used to refer to a triangle, a 3-sided polygon. Every triangle consists of a set of three angles and three sides, some of which may be the same. The three angles of the triangle add up to 180 degrees. With three sides and three vertices, triangles are a specific type of polygon in geometry. The two-dimensional figure displayed here has three straight sides. A triangle is a type of 3-sided polygon.
here
Area of each triangles is 4.2 x 8.2 or 34.44.
There are two triangles, thus you don't need to divide by two.
In addition, 8.2 is obtained by deducting the top length from the overall length. (13.5-5.3)
rectangle: 22.26 x 5.3
56.7 square meters is the entire area.
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The correct question is
What is the area, in square centimeters, of the triangles are?
a) 5.3 cm
b) 4.2 cm
c) 13.5 cm
Sara's mom takes the parkway to work. It takes her 30 minutes to travel from mile marker 88 where she enters to her exit at mile marker 121. What is her average speed
Sara's mom average speed is 66mph. The next step is to divide the distance by the time: 33/0.5 = 66 mph.
What is average speed ?You may estimate the average pace at which an object will go a distance by looking at its average speed. Average speed is calculated by dividing a quantity by the time required to obtain that quantity.
Finding the distance and the time is necessary to calculate speed.
In this situation, you must deduct mile marker 88 from 121 to determine the distance.
121 - 88 = 33mile
Even though the time is 30 minutes, you're probably interested in miles per hour. 30 minutes must be converted to 0.5 hours.
The next step is to divide the distance by the time: 33/0.5 = 66 mph.
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Randy grows cherries to sell at local stores. All of the cherries he will sell are in the four boxes shown. Randy wants to send an equal number of pounds of cherries to 4 stores. Enter a fraction that shows how many pounds of cherries each store will receive. Enter your answer as a mixed number
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as the 4 boxes are not given.
However, the general explanation is as follows;
From the question, we understand that Randy wants to send an equal amount to 4 different stores
This implies that, we calculate the average (mean) of the 4 boxes.
This is calculated as:
[tex]Mean = \frac{\sum x}{n}[/tex]
Assume that the number of cherry in the 4 boxes are: 25, 23, 28 and 27
The formula becomes
[tex]Mean = \frac{25 + 23 + 28 + 27}{4}[/tex]
[tex]Mean = \frac{103}{4}[/tex]
This implies that Randy will send 103/4 to each of the 4 stores.
The answer as a mixed number is:
[tex]Mean = 25\frac{3}{4}[/tex]
Zachary plans to collect $0. 30 from each person that comes to the party to cover the cost of the candy.
How many people will need to come to the party to cover the entire cost of the candy
In order to pay for the sweets, Zachary intends to take $0.30 from each guest that attends the celebration. To pay for the total cost of the sweets, 4 guests are required to attend the party.
How much candy per person?We suggest 8 ounces of sweets per visitor when utilizing ounces. A 5 pound bag of candy will thus be enough to satisfy 10 people. The candy bar may have been distributed evenly in the following manner. Since there are four individuals, split each according to who will receive. About half a pound of sweets is given to each visitor. Therefore, you should buy 50 pounds of sweets at the very least if 100 people are expected.
Setting up the confectionery should minimize guest contact with it for hygienic reasons. Tongs and candy scoops in your theme-coordinating color should be provided for bulk candies. Since you don't want your guests to consume too much sugar, smaller serving utensils are preferred.
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Tara has a flower garden.In the garden 3/8 of are red and 3/6 are yellow . Copare the amount of red and yellow flowers using <>=
Answer:
Step-by-step explanation:
3/6 > 3/8
2nd last question on my exam!! Someone please answer it
PLEASE HELP QUICKLY! IF 2 ANSWERS I WILL VOTE ONE BRAINLIEST
Answer:
15/3 =5 is the correct answer
Find the measure of the missing angles.
Answer:
Hello!
x = 39
y = 90
Hope this helps!
Shen's chocolate bar is 67% cocoa. If the weight of the chocolate bar is 59 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth.
Answer:
Step-by-step explanation:
Shen's chocolate bar is 67% cocoa. If the weight of the chocolate bar is 59 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth.
if t and m are positive integers and 2t+3m=8 what is the value of t
Answer: look at the picture
Step-by-step explanation: Hope this help :D
The value of m and t is 4- 3m/2 and 8/3 -2t/3.
What is Equation?Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S (left hand side = right hand side).
Parts of an EquationThere are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators.
Given:
2t+3m=8
For t:
2t= 8-3m
t= (8-3m)/2
t= 8/2 -3m/2
t= 4- 3m/2
For m:
3m= 8-2t
m= (8-2t)/3
m= 8/3 -2t/3
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An's backpack weighs as much as Lin's backpack. Clare's backpack weighs as much as Lin's backpack. Whose backpack weighs the most? Whose backpack weighs the least? Explain or show your reasoning.
Answer:
All 3 backpacks are equal in weight, there is none that is heavier or lighter than the others. That is, the 3 backpacks have the same weight.
Step-by-step explanation:
Given that An's backpack weighs as much as Lin's backpack, and Clare's backpack weighs as much as Lin's backpack, to determine whose backpack weighs the most and whose backpack weighs the least the following mathematical reasoning must be considered:
A = L
C = L
Therefore, A = C.
Since all 3 backpacks are equal in weight, there is none that is heavier or lighter than the others. That is, the 3 backpacks have the same weight.
Write the standard equation of the circle.
Geometry b
The standard equation of the circle will be;
⇒ (x - 3)² + (y + 5)² = 16
What is Circle?The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.
Given that;
The circle is shown in figure.
Now,
Here, By the figure;
The radius of the circle = 7 - 3
= 4 units
And, The center of circle = (3, - 5)
We know that;
The standard equation of the circle is,
⇒ (x - h)² + (y - k)² = r²
Where, (h, k) = center and r is radius.
So, We get;
The standard equation of the circle is,
⇒ (x - 3)² + (y - (-5))² = 4²
⇒ (x - 3)² + (y + 5)² = 16
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What is 4(a)(c)? Calculate the answer.
batch of hot chocolate is made with 21 teasoons of cocoa and 7 cups of milk.
How many teaspoons of cocoa are needed for every cup of milk?
On the double number line below, fill in the given values, then use
multiplication or division to find the missing value:
cups of milk
Answer:
Step-by-step explanation:
Ya
A triangle has an angle that measures 126°. The other two angles are in a ratio of 11:16. What are the measures of those two angles?
Therefore, the measures of those two angles are 33° and 24°.
Define angles.An angle is a figure in plane geometry that is created by two rays or lines that have a shared endpoint. The Latin word "angulus," which means "corner," is the source of the English term "angle."
Define geometry.Geometry is a branch of mathematics that studies the sizes, shapes, positions, angles, and dimensions of things.
We know, the sum of the angles in a triangle is always 180 degrees.
126 + x + y = 180
x + y = 54
Given that the two angles are in a ratio of 11:16, the proportion:
x/y = 11/16
Solving for x and y, we get:
x = 11y/16
We substitute this equation into the equation x + y = 54 and we get:
11y/16 + y = 54
Solving for y we get y = 24. Then we can use the proportion to find x:
x = 11 * 24 / 16 = 33.
So the two angles are 33° and 24°.
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