Answer:
502.4 in²
Step-by-step explanation:
Area of a sphere = 4 πr²
Plastic beach balls are spherical in shape.
Hence, the Area of a sphere = 4πr²
Where r = radius = 2 inches
π = 3.14
Hence, the area of one spherical ball =
4 × 3.14 × 2²
= 50.24 square Inches
For 1 spherical ball, 50.24 square inches of plastic is needed to make it.
How many square inches of plastic does the company need to make 10 beach balls?
Therefore,
1 spherical ball = 50.24 in²
10 spherical balls = x
Cross Multiply
x = 10 × 50.24 in²
x = 502.4 in²
Therefore, 502.4 square inches of plastic is needed by the company to make 10 beach balls.
Answer:
a
Step-by-step explanation:
on edge
factor this equation: y^2+5y-84
Answer:
(y−7)(y+12)
Step-by-step explanation:
Yana plans to run 1 mile she has run 7/10 of a mile what fraction of a mile does she have left to run
Answer:
3/10
Step-by-step explanation:
7+3= 10 so 7+3=10/10 which is one mile
can someone help me 10 points
The two angles form a right triangle which is 90 degrees.
Add the two to equal 90:
3x-8 + 4x = 90
simplify:
7x-8 = 90
Add 8 to both sides:
7x = 98
Divide both sides by 7:
x = 14
I NEED HELP ASAP PLEASE GIVING BRAINLIEST!
Answer:
0.52= 52/100= 0.52
Step-by-step explanation:
25 cents plus 5 cents is 30 cents plus 2 dimes which is 10cents each gets is 50 cents plus 2 penny's that are 1cent each is 52cents
which one doesn't belong
Andre went to purchase sporting goods. His total was $42. Due to a sale he saved $4. What percentage of the total regular price was his savings?
To figure this out, simply divide 4 by 42
4/42 = 0.0952
0.0952 x 100 = 9.52%
9.52% of the regular price were savings :D
A principal of 1800$ is invested at 6.75% interest, compounded annually. How much will the investment be worth after 7 years? Use the calculator provided and round your answer to the nearest dollar.
Answer:
$2843 is the investment value after seven years
A manager wants to gauge employee satisfaction at a company. She hands out a survey questionnaire to everyone in the human resources department who were hired in the past two years. The employees must respond to the questionnaire within five days.
What type of bias are the survey results at risk for?
A.
The survey results are at risk for nonresponse bias and undercoverage.
B.
The survey results are most at risk for nonresponse bias.
C.
The survey results are most at risk for undercoverage.
D.
The survey results are not at risk for any bias.
The survey results are most at risk for undercoverage.
What is a survey?A survey is the process research method in which a group of things are tested to find insights into the data collected from the groups.
As its mentioned in the question that the employees must respond to the questionnaire within five days.
The survey results are not at risk for non-response bias as its mandatory for every employee to respond to the survey results.
There can be a chance that the survey does not cover all the points that should be include in order to get employee satisfaction.
Therefore the survey results are most at risk for undercoverage.
To know more about the survey follow
https://brainly.com/question/251701
#SPJ5
what is the slope of this equation y=7x+22
Answer:
the slope is +7
Step-by-step explanation:
m means slope in the formula y=mx+b
i giveeee brainlilstttt
Answer:
man have a good day
Step-by-step explanation:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 100 u made it :) GOOD JOB
Answer:
thethethethethethethetheththethethethethethethetehthetehthethethethettehtehtehtehtehethtehteydogdgodgdgodgdogdogdgddddogdoodgodgdodgdghodgodgodgdodgogdoddgodogdogdogdotdgo
Step-by-step explanation:
For the given equation, enter the value of M when
x= 3/2
x+2M= 7/2
Answer:
Hopes this helpsss plz mark brainliest
Step-by-step explanation:
i givee brainlilstttt
Answer:
4,-4
Step-by-step explanation:
i think
Figure out the pattern, then fill in the missing number. 4, 20, 100, _______, 2,500
Answer:
500
Step-by-step explanation:
Muliplting by 5
4*5=20
20*5=100
100*5=500
500*5= 2500
Answer:
500
Step-by-step explanation:
Mutiplying every number by 5 to gove is the next number
Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations)
I got 56,52 text me if you need explanation
Answer:
18π
Step-by-step explanation:
(80/360)πr^2
What is the 11th term of the sequence 2, 8, 32, 128
A. 262,144
B. 524,288
C. 1,048,576
D. 2,097,152
Answer:
2,097,152Step-by-step explanation:
Given the sequence
2, 8, 32, 128..
The sequence is a geometric sequence. The nth term of the geometric sequence is expressed as;
Tn = arⁿ⁻¹
a is the first term
r is the common ratio
n is the number of terms
From the sequence;
a = 2
r = 8/2 = 32/8 = 4
n = 11 (since we are to find the 11th sequence)
Substitute into the formula;
T₁₁ = 2(4)¹¹⁻¹
T₁₁ = 2(4)¹⁰
T₁₁ = 2(1,048,576)
T₁₁ = 2,097,152
Hence the 11th term of the sequence is 2,097,152
Let the random variable X represent the profit made on a randomly selected day by a certain store. Assume that X is Nomal with mean $360
and standard deviation $50. What is P(X<$400)?
A0 2881
B0.7881
C0.8450
D0.5319
E0.2119
Answer:
b
Step-by-step explanation:
The probability for P(X<$400) is 0.7881.
What is z- score?The Z-score quantifies the discrepancy between a given value and the standard deviation. The Z-score, also known as the standard score, indicates how many standard deviations a specific data point deviates from the mean. In essence, standard deviation represents the degree of variability present in a given data collection.
Given:
Mean = $360
Standard Deviation = $50
We can use the z-score formula that is shown below:
Z = x - μ/σ
Where,
Z = standard score
x = observed value
μ = mean of the sample
σ = standard deviation
So,
z = 400 - $360/$50
z = 40/ 50
z= 0.8
and, P(x<400) = 0.78814
Learn more about z- score here:
brainly.com/question/15016913
#SPJ4
Hey can someone help me with this
Answer:
[4x^2}-[9x]+[11}
Step-by-step explanation:
Given:
(3x^2-2x)+(x^2-7x+11)=
3x^2-2x+x^2-7x+11=
4x^2-9x+11=
Answer:
4x^2-9x+11
Step-by-step explanation:
download cymath to see explanation. it helps solve this kind of problem
Common factor of 17abc,and 51a2bc is
Answer:
17abc
Step-by-step explanation:
To find the greatest common factor between 17abc and 51a²bc, let's start by breaking down any composite number here into prime factors. 17 is prime, but 51 is composite; its prime factorization is 3 · 17. Now, let's fully expand each term:
[tex]17\cdot a\cdot b\cdot c\\3\cdot17\cdot a\cdot a\cdot b\cdot c[/tex]
The greatest common factor is the product of all the factors these terms have in common. Here, we can see that they have
One 17One aOne b, andOne cin common. Multiplying these together, the greatest common factor is 17abc.
=
1...
12
Integer
Statement
+5
Rony earned $ 5
The tempreature falls 10 degrees
Tim won 20 points
Jack lost forty dollars
The plant has grown 3 inches since last month
Thomas has to pay $ 4 as penalty
The cat lost its two kittens
Rosy have 12 excessive stamps con
ers
Henry won a lottery amount of $ 50
Answer:
-10
+20
-40
+3
-4
-2
+12
+50
Which expression is equivalent to -6 (3x - 2/3)
A -2x + 9
B -3x - 6 2/3
C -18x + 12
D -18x + 4
Answer:
D (We can extend all the expressions)
627.6-422.34
I need help on this question
Answer:
Answer is 205.26 is the I think so
the answer to your question is 205.26
Does the set of numbers form a Pythagorean triple? Explain.
24, 20, 32
Choose the correct answer below.
No, because the given numbers satisfy the equation a? + b2 = c?
Yes, because the given numbers satisfy the equation a? + b2 = c2.
Yes, because the given numbers do not satisfy the equation a? + b2 =c2.
No, because the given numbers do not satisfy the equation a² + b2 =c2.
Answer:
D. No, because the given numbers do not satisfy the equation a² + b² = c²
Step-by-step explanation:
For the set of numbers; 24, 20, 32, to form a pythagorean triple, they must satisfy the equation a² + b² = c².
Where, c is the longest side (hypotenuse), while a and b are the two other legs.
Let's find out.
a = 20, b = 24, c = 32
Plug in the value into the equation
20² + 24² = 32²
976 = 1,024 (this is not true).
976 is not equal to 1,024.
The set of given numbers does not form a pythagorean triple because it does not satisfy the equation a² + b² = c².
How many leaves are 7 inches or longer
Answer:
You could pick as many as you like. Ideally you would use all the leaves on the tree, but that would be rather a large number to measure, and your parents might not be very happy if you stripped the tree bare!
So let's try 100 leaves.
How to get a random sample?
Here is one way you could get a random sample:
Try taking all the leaves on one branch of the tree. After you've discarded any that are broken, then see how many there are. If there are less than 100, then get the leaves from another branch until you have more than 100. Then write a different number (starting with 1) on each leaf with a marking pen.
Write the same numbers on small pieces of paper.
Fold the pieces of paper.
Put them into a hat and mix them up.
Draw 100 pieces of paper (without looking) from the hat. The first 100 pieces of paper you draw would give you the numbers of the leaves to use in the experiment.
The next thing you need to decide is how to measure the leaves, and
how accurate your measurements should be:
How to measure?
Keeping your leaves flat, use a ruler to measure the length of each leaf from the pointy part at one end of the leaf to the point where the leaf joins the stalk at the other end. Maybe your leaves bend a bit, but don't follow the main rib of the leaf as this would make measurement too difficult.
Just measure in a straight line as shown in the following diagram:
leaf
How accurate?
You should measure the length of each leaf to the nearest millimeter.
Now you're ready to begin.
Measure the length of each leaf to the nearest millimeter and record you results in a table, as follows:
find geometric mean between 2 and 8
Answer: 4
===================================
Rule: The geometric mean of two numbers x and y is sqrt(x*y)
In this case, x = 2 and y = 8
So we have the geometric mean equal to sqrt(2*8) = sqrt(16) = 4
If you wanted to find the geometric mean of three values, then you'll multiply the numbers and take a cube root. If you had four values, then you multiply and apply a fourth root. And so on.
Solve fort.
2(t+1) = 10
Answer:
t=4
Step-by-step explanation:
2(t+1)=10
t+1=10/2
t+1=5
t=5-1
t=4
Find x.
88°
142°
136°
105°
136°
xº
Х-y=5
x-2y=3
Can someone help me
Drag each expression to a box to show whether it is a correct way to check the answer
to this equation:
4,112 - 5 = 822 remainder 2
CLEAR
Answer:
822 × 5 + 2
Step-by-step explanation:
Given that:
4112 ÷ 5 = [tex]\frac{4112}{5}[/tex]
= 822 remainder 2
To check if the answer is correct, we can write that;
[tex]\frac{4112}{5}[/tex] = 822 remainder 2
4112 = 5 x 822 remainder 2
= 5 x 822 + 2
= 822 x 5 + 2
4112 = 4112
Thus,the correct process of checking the answer is 822 x 5 + 2.
Can some plz answer this I can't figire it out 3(-3f-2)-f
9514 1404 393
Answer:
-10f -6
Step-by-step explanation:
Maybe you want to simplify the expression ...
3(-3f-2)-f
The distributive property is used to eliminate parentheses.
= 3(-3f) +3(-2) -f
= -9f -6 -f
Recognize like terms and group them together to make it easier.
= -9f -f -6
Combine the like terms.
= (-9 -1)f -6
= -10f -6
If 4 pounds of jelly beans cost $6.82, how much would 2 pounds cost?
I
Answer: $3.41
Step-by-step explanation: Since 2 is half of 4 divided 6.82 by 2 and you'll get the answer of 3.41.
