Answer:
7,854 cm squared
Step-by-step explanation:
The formula for the area of a circle is ...
A = πr^2
Filling in the given radius gives you ...
A = π(50 cm)^2 = 2500π cm^2 ≈ 7854 cm^2
ing One Step Equations - Barb knows that she needs 8.5 hours of sleep every night to feel rested and sharp. If Barb has been getting her 8.5 hours of sleep every night, write and solve an equation that represents the number of perfect nights of sleep she's had, if she's had 3102.5 hours of sleep.
I've been stuck on this for sooo longgg:((
Answer:
x=3102.5/8.5 is your answer
Step-by-step explanation:
Solve for x. Round to the nearest tenth.
x =
(37 points)
Answer:About 14 to 15 inches
Step-by-step explanation:
Answer:
Step-by-step explanation: First you must do 70 subtracted by 13 then you have your answer for x.
please help!
!!!!!!!!!!!!!!!!!!!!!!!
The equation is graphed in this figure is y - 5 = 3(x - 1).
From the graph:
points are (0, 2) , (1, 5) , (-2, -4) and (-3, -7).
slope between two points (0, 2) and (1, 5) is m = y2 - y1/x2 - x1
= 5 - 2 / 1 - 0
= 3/1
m = 3.
we know that line equation is y - y1 = m(x - x1)
y - 2 = 3(x - 0)
3x - y + 2 = 0.
option 4 is correct because y - 5 = 3(x - 1) ≅ 3x - y + 2 = 0.
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Evaluate the following complex expression. (4+ i) 2= + i (-4 i)(3 i)= i 3(9- i)= - i (5+2 i)(3-7 i)= - i (8+5 i)+2(3 i-4)= i (4+6 i)-(-4- i)= + i
Answer:
Operations on Complex Numbers (page 2 of 3) ... Simplify (2 – i)(3 + 4i). (2 – i)(3 + 4i) = (2)(3) + (2)(4i) + (–i)(3) + (–i)(4i). = 6 + 8i – 3i – 4i2 = 6 + 5i – 4(–1) ... exact same techniques for simplifying complex-number expressions as you do for polynomial ... Suppose you have the following exercise:
Step-by-step explanation:
1) Kelly has 15 blue bracelets and 12 green bracelets. What is the ratio of Kelly’s blue bracelets to green bracelets?
2) Over the winter it snowed 36 days out of 40 days. What is the snow days to days ratio in simple form?
3) The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys participated?
1)The ratio of Kelly’s blue bracelets to green bracelets is 5:4.
2)The snow days to days ratio is 20:1
3)There are 42 girls in the competition. The ratio of girls to boys who participated in the quiz bowl was 7 : 5. Solving the two ratios, Therefore, There are 30 boys in the competition.
Define ratio?A ratio is a ratio that compares two quantities.A proportion is the difference between two ratios. To write a ratio, do the following: Determine whether the ratio is a part-to-part or a part-to-whole ratio. If necessary, compute the parts and total.The ratio is defined as the division of two numbers or quantities. The ratio is a relationship between the quantities of two or more objects that indicates how much of one is contained in the other. The ratio formula can be used to convert a ratio into a fraction. a:b = a/b is the ratio formula for any two quantities, say a and b.To learn more about ratio refer to:
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1)The ratio of Kelly’s blue bracelets to green bracelets is 5:4.
2)The snow days to days ratio is 20:1
3)There are 42 girls in the competition. The ratio of girls to boys who participated in the quiz bowl was 7 : 5. Solving the two ratios, Therefore, There are 30 boys in the competition.
Define ratio?
A ratio is a ratio that compares two quantities.A proportion is the difference between two ratios.To write a ratio, do the following: Determine whether the ratio is a part-to-part or a part-to-whole ratio. If necessary, compute the parts and total.The ratio is defined as the division of two numbers or quantities.The ratio is a relationship between the quantities of two or more objects that indicates how much of one is contained in the other.The ratio formula can be used to convert a ratio into a fraction. a:b = a/b is the ratio formula for any two quantities, say a and b.To learn more about ratio refers to:
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What’s the correct answer for this question?
Answer:
6 pounds and 15 ounces
Step-by-step explanation:
Since 1 pound is equal to 16 ounces you divide 111 by 16 and get 6 remainder 15 which is basically 6 pounds and 15 ounces. Hope this helps!
multiply (plzzz help i forgot how to do this)
(x+3)(x+4)
David is three time as old as Joseph after 3 years David will be only twice as old as process will be there find their present ages
Answer:
Joseph's present age=3 yrs
David's present age=9 yrs
Step-by-step explanation:
Let Joseph's present age be x.
David's present age=3x
__________________
Ater 3 yrs,
Joseph's age=x+3
David's age=2(x+3)
Also, we can add 3 to David's present age to get age After 3 yrs. So, David's age after 3 yrs would also be 3x+3.
Now, balance them.
3x+3=2(x+3)
3x+3=2x+6
x=3
D"s prsent age=9
J's present age=3
Please help me solve this question
Answer:
The final answer is 78 inches, though I would recommend for you to read through the steps of how this is achieved.
Step-by-step explanation:
To start, to grasp the corresponding sides deal, think of it as saying Quad 1234 is equal to Quad ABCD. Now, it is fairly easy to make up the sides between the two shapes. With this, the following is true:
Side 12 ≅ Side AB
Side 23 ≅ Side BC
Side 34 ≅ Side CD
With the end, it loops back around to meet back at the first edge of the shape again, if you're looking for a side length.
Side 41 ≅ Side DA
Now, with the real stuff. We're greeted with the Quads DEFG and KLMN, and asked to find FG. Looking at it, FG would be using the 3rd and 4th letters of the set of quad edges. Comparing this to the other quad shape, the 3rd and 4th letters are MN. Therefore, lets use this.
Next, set these equal to each other. FG is 5y+3 and MN is 7y-27
5y+3 = 7y-27
5y = 7y-30
-2y = -30
2y = 30
y = 15
y equals 15.
Lastly, plug this into the equation for FG to get the final answer.
5(15)+3
75+3
78 inches
To pay for a home improvement project that total is $20,000 a homeowner is choosing between two different credit card loans with an interest rate of 7% the first credit card compounds interest quarterly or the second credit card compounded monthly the homeowner plans to pay off the loan in 10 years part a determine the total value of a loan with the quarterly compounded interest Show all work and round your answer to the nearest hundred part B determine the total value of the loan with the monthly compounded interest show all work and round your answer to the nearest hundredth Park see what is the difference between the total interest accrued on each loan explain your answer in complete sentences
A. The total value of the loan with quarterly compounded interest is $52,400.
B. The total value of the loan with monthly compounded interest is $52,010.04
How did we get the values?Part A: Total value of the loan with the quarterly compounded interest
To find the total value of the loan, we'll use the formula for compound interest:
A = P * (1 + r/n)^(nt)
Where:
A = final amount (loan + interest)
P = principal amount (initial loan) = $20,000
r = interest rate = 7% = 0.07
n = number of times compounded per year = 4 (quarterly)
t = number of years = 10
Plugging in the values, we get:
A = $20,000 * (1 + 0.07/4)^(4 * 10)
A = $20,000 * (1.0175)^40
A = $20,000 * 2.620075
A = $52,401.51
Rounding to the nearest hundred, the total value of the loan with quarterly compounded interest is $52,400.
Part B: Total value of the loan with the monthly compounded interest
To find the total value of the loan with monthly compounded interest, we'll use the same formula with a different value of n:
A = P * (1 + r/n)^(nt)
Where:
n = number of times compounded per year = 12 (monthly)
Plugging in the values, we get:
A = $20,000 * (1 + 0.07/12)^(12 * 10)
A = $20,000 * (1.005833)^120
A = $20,000 * 2.600502
A = $52,010.04
Rounding to the nearest hundredth, the total value of the loan with monthly compounded interest is $52,010.04
The difference between the two loans is $52,401.51 - $52,010.04 = $391.47
The difference between the two loans is due to the higher frequency of compounding in the monthly compounded interest loan. The interest is compounded more times per year, so the interest is accumulating on the interest more quickly, leading to a higher overall interest charge.
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A 30-sided regular polygon has an angle measure represented as 6g°. Determine the value of g.
g = 30
g = 28
g = 180
g = 168
The value of g, for a 30-sided regular polygon has an angle measure represented as 6g° is calculated to be 28
How to find the value of gThe problem is solved using the formula for number of angles for n sided polygon
The formula is (n - 2)180
where n = number of sides
for 30-sided polygon the angles is solved as below
= (n - 2)180
= ( 30 - 2 ) * 180
= 28 * 180
= 5040
this is represented as 6g
each angle is measured 5040 / 30 = 168
6g = 168
g = 28
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Answer: 28
Step-by-step explanation: 168 is the whole polygon, so 6 times 28 is 168 therefore its correct, btw i also did the test
9(2n+1) help please brooooooo
Answer:
18n + 9
Step-by-step explanation:
Distribute 9 into the expression.
9*2n = 18n
9*1 = 9
18n + 9
pls help asap !!!!!!
Answer:
The MEDIAN, 4.5 hours, is the best measure of center, so the IQR is the best measure of variability.
McKennas conclusion IS NOT accurate. The mode of her data IS 6 hours. However, MORE than half of the time, she spends LESS than 6 hours riding her horse. It would be more accurate to say that Mckenna typically rides her horse between 2.5 and 6 hours.
Step-by-step explanation:
Put the values in order of smallest to largest:
0, 2, 2, 2.5, 2.5, 3, 4, 5, 6, 6, 6, 8, 9, 10
Median (middle value) = (4 + 5)/2 = 4.5
Lower quartile Q1 = 2.5
Upper quartlie Q3 = 6
IQR = Q3 - Q1 = 3.5
Mode (value that occurs most often) = 6
Mean (average) = sum of values ÷ number of values = 4.7
Range (difference between the highest and lowest values) = 10 - 0 = 10
Median is the best measure of the center since it isn't influenced by extreme values.
IQR is less affected by outliers and extreme values. It gives a consistent measure of variability for skewed data.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The MEDIAN, 4.5 hours, is the best measure of center, so the IQR is the best measure of variability.
McKennas conclusion IS NOT accurate. The mode of her data IS 6 hours. However, MORE than half of the time, she spends LESS than 6 hours riding her horse. It would be more accurate to say that Mckenna typically rides her horse between 2.5 and 6 hours.
Identify the number line that correctly displays the solution x ≥ 3.
The correct number line that displays the solution `x ≥ 3` would be:
<------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------|------>
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
●------------------------------------------------>
The solution `x ≥ 3` is an inequality that means x is greater than or equal to 3. To graph this inequality on the number line, we mark the point representing the value 3 with a closed circle on the number line and draw an arrow pointing to the right to indicate that all values greater than or equal to 3 satisfy the inequality.
The closed circle at 3 indicates that 3 is included in the solution set, and the arrow to the right indicates that all values greater than 3 also satisfy the inequality. Therefore, any value of x that is equal to or greater than 3 would be considered a solution to the inequality `x ≥ 3`.
It is important to note that if the inequality was `x > 3` (without the equal sign), the closed circle at 3 would be changed to an open circle, indicating that 3 is not included in the solution set, and only values greater than 3 would be considered solutions. In conclusion, the number line provided above correctly displays the solution `x ≥ 3`.
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Find the intersection of the line and the circle given below
2x+y=-5
x^2+y^2=10
Answer:
There are two intersections.
(-3,1) and (-1,-3)
Step-by-step explanation:
Answer:
They intersect at (-3,1), and also (-1,-3)
Step-by-step explanation:
Graph:
A golf retailer purchases its clubs from a wholesaler at $39 per club. It sells the same clubs to golfers at $76 per club. What is the markup on each club, as a percentage of the wholesale price?
Find the amount of the markup by subtracting:
76-39 = $37
Divide the amount of the mark up by the purchase price:
37/39 = 0.948 x 100 = 94.8%
Answer: 94.8 %. Round the answer as needed.
A dog trainer is trying to find a triangular area behind his house that encloses 1800 square feet for his dog to run. He has the first two fence posts at (6, 0) and at (0, 25). The final fence post is on the property line at x = 30. Find the point where the trainer can place the final fence post.
Answer:
\(C = (30,500)\)
Step-by-step explanation:
Given
\(Area = 1800ft^2\)
\(A = (6,0)\)
\(B = (0,25)\)
\(C(x,y) = (30,y)\)
Required
Determine the coordinates of C
The area of triangle is calculated as thus:
\(Area = \frac{|A_x(B_y - C_y) + B_x(C_y - A_y) + C_x(A_y - B_y)|}{2}\)
This gives:
\(1800= \frac{|6(25 - y) + 0(y - 0) + 30(0 - 25)|}{2}\)
\(1800= \frac{|6(25 - y) + 30(0- 25)|}{2}\)
\(1800= \frac{|6(25 - y) + 30(-25)|}{2}\)
\(1800= \frac{|150 - 6y -750 |}{2}\)
\(1800= \frac{|150 -750- 6y |}{2}\)
\(1800= \frac{|-600- 6y |}{2}\)
Multiply through by 2
\(2 * 1800= |-600- 6y|\)
\(3600= |-600- 6y|\)
\(3600= |-(600+ 6y)|\)
\(3600= 600+ 6y\)
Solve for 6y
\(6y = 3600 - 600\)
\(6y = 3000\)
Solve for y
\(y = 3000/6\)
\(y = 500\)
Hence:
The point is:
\(C = (30,500)\)
Multiple Choice Carlos read a book for language arts class.
He finished the book on Friday. On Monday he read 27 pages.
On Tuesday he read 31 pages. On Wednesday he read 28 pages.
On Thursday and Friday he read the same number of pages each day.
The book has 144 pages. How many pages did he read on Thursday?
A. 28
B. 29
C. 31
D. 58
Carlos read 29 pages on Thursday.
What are equations?In its most basic form, an equation is a mathematical statement that shows that two mathematical expressions are equal. 3x + 5 = 14, for example, is an equation in which 3x + 5 and 14 are two expressions separated by a 'equal' sign.So Let, the pages read by Carlos on Thursday and Friday be x as on Thursday and Friday he read the same number of pages.
The equations will be: 27 + 31 + 28 + x + x = 144Now, solve the equation fr x as follows:
27 + 31 + 28 + x + x = 14486 + 2x = 1442x = 144 - 862x = 58x = 58/2x = 29So, Carlos read 29 pages on Thursday and Friday.
Therefore, Carlos read 29 pages on Thursday.
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Please help me will give you brainliest!!!
Combine the like terms to create an equivalent expression.
10k+1+8k+2=10k+1+8k+2
Eric has 9 large pitchers for a sport drink at the soccer game. If he pours 4/7 of the sports drink into each pitcher will the total amount he lours into those pitchers be more or less than9 gallons?
Answer:
more because it is 9 pitchers and 4/7 of energy drink in each
Joe makes tomato sauce to sell at a craft fair. He makes it in 5 gallon batches. How many pint jars does he need to hold 5 gallons of sauce?
By doing a change of units, we know that he will need 40 pint jars to hold the whole volume of sauce.
How many pint jars does he need?
We know that Joe makes tomato sauce to sell at a craft fair, and we know that he did make that sauce in 5-gallon batches.
We want to see how many jars do he need to hold these 5 gallons, so we need to perform a change of units.
Remember the relation:
1 gallon = 8 pints.
So, for each gallon, he will need 8 pint jars, then for the 5 gallons, he will need:
5*8 pint jars = 40 pint jars.
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What is the range of the function? f(x)=3^x−1−2
The range of the equation f(x) = 3ˣ ⁻ ¹ - 2 is y > -2
Calculating the range of the equation?From the question, we have the following parameters that can be used in our computation:
f(x) = 3ˣ ⁻ ¹ - 2
The above equation is an exponential function
The rule of an exponential function is that
The domain is the set of all real numbersHowever, the range is always greater than the constant termIn this case, it is -2
So, the range is y > -2
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Please i nedd help with this i will give brainliest
Answer:
1) 1 hour
2) 1 hour
3) 2 hours
Step-by-step explanation:
1 hour = 60 minutes
Therefore,
7/8 of an hour implies 7/8 of 60 minutes
7/8 * 60 = 420/8 = 52.5 Mins
52.5 is closest to an hour
5/6 of an hour implies 5/6 of 60 minutes
5/6 * 60 = 50 = 50 Mins
50 is closest to an hour
An hour + Anhour = 2 hours
Total: 2 hours
How do I do this , it is very confusing
Given
\(\begin{gathered} g(x)=x^2-10x+19 \\ 0\leq x\leq8 \end{gathered}\)Answer
\(\begin{gathered} g(0)=0^2-10(0)+19=19 \\ g(18)=8^2-10(8)+19=64-80+19=3 \\ \text{Average = }\frac{-3-19}{2}=\frac{-22}{2}=-11 \end{gathered}\)Ximena pays a flat cost of $44.50 per month and $4 per gigabyte. She wants to keep her bill at $50.10 per month. How many gigabytes of data can she use while staying within her budget?
Answer:
Ximena can use 1 gigabytes of data
Step-by-step explanation:
The first thing you want to do is subtract
51.10 - 44.50 = 5.6
5.6 is the amount of money she will have to spend on data
With each gigabyte costing 4 dollars and only 5 dollars to spend
she can only use one gigabyte
Median weekly earnings for women with some college for an associate degree. 1980.......$231 2013.............$657 Using today's dollars, the data in the bar graph can be described by the mathematical model W = 13n + 231, Where W represents median weekly earnings n years after 1980. Does the formula underestimate or overestimate the median weekly earnings in 2013? By how much?
Using the linear function given in this problem, the formula underestimates the median weekly earnings in 2013 by $3, as 657 < 660.
What is the linear function?The function that estimates the median weekly earnings n years after 1980 is:
W = 13n + 231.
2013 is 2013-1980 = 33 years after 2000, hence the estimate is given by W when n = 33, that is:
W = 13 x 33 + 231 = 660.
657 < 660, hence the formula underestimates the median weekly earnings in 2013 by $3.
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100,000,000 sheep are in a field the farmer says there are 36 acres for each sheep how many acres are there in the field
Answer:
3,600,000,000
Step-by-step explanation:
if i understood this correctly, you just multiply 100,000,000 by 36 and you're done
A bag contains 8 green candies and 4 red candies. You randomly select one candy at a time to eat. If you eat five candies, there are relatively prime positive integers m and n so that m n is the probability that you do not eat a
green candy after you eat a red candy. Find m + n.
If m/n is the probability that you do not eat green candy after you eat a red candy, then m + n is 6.
A bag contains 8 green candies and 4 red candies. If you eat five candies, there are relatively prime positive integers m and n so that m/n is the probability that you do not eat green candy after you eat a red candy. Below list the ways to accomplish this ordering along with their respective probabilities:
GRRRR : \(\frac{8}{12}\times\frac{4}{11} \times\frac{3}{10} \times\frac{2}{9} \times\frac{1}{8}\)
GGRRR : \(\frac{8}{12}\times\frac{7}{11} \times\frac{4}{10} \times\frac{3}{9} \times\frac{2}{8}\)
GGGRR : \(\frac{8}{12}\times\frac{7}{11} \times\frac{6}{10} \times\frac{4}{9} \times\frac{3}{8}\)
GGGGR : \(\frac{8}{12}\times\frac{7}{11} \times\frac{6}{10} \times\frac{5}{9} \times\frac{4}{8}\)
GGGGG : \(\frac{8}{12}\times\frac{7}{11} \times\frac{6}{10} \times\frac{5}{9} \times\frac{4}{8}\)
The sum is \(\frac{8\times3\times4(2+14+42+70+70)}{12.11.10.9.8}\)
Probability that you do not eat green candy after you eat a red candy =\(\frac{1}{5}\)
so m = 1 and n = 5
m + n =6
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Please help and show how you found the answer step by step.
According to the information, the perimeter of the triangle is ≈ 31.18
How to calculate the perimeter of the triangle?To find the distance between two points, we can use the distance formula:
distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Let's label the coordinates as follows:
Point 1: (-2, 3)
Point 2: (3, -2)
Now we can substitute these values into the distance formula:
distance = sqrt((3 - (-2))^2 + (-2 - 3)^2)
distance = sqrt((5)^2 + (-5)^2)
distance = sqrt(25 + 25)
distance = sqrt(50)
distance ≈ 7.07
Therefore, the distance from (-2, 3) to (3, -2) is approximately 7.07 units.
To find the perimeter of the triangle, we need to find the length of all three sides of the triangle and then add them up.
Using the distance formula, we can find the length of the sides:
Side 1: (-2,3) to (3,-2)
d = √[(3 - (-2))^2 + (-2 - 3)^2]
= √[5^2 + (-5)^2]
= √50
= 5√2
Side 2: (3,-2) to (-7,-2)
d = √[(-7 - 3)^2 + (-2 - (-2))^2]
= √[(-10)^2 + 0^2]
= 10
Side 3: (-7,-2) to (-2,3)
d = √[(-2 - (-7))^2 + (3 - (-2))^2]
= √[5^2 + 5^2]
= 5√2
Therefore, the perimeter of the triangle is:
5√2 + 10 + 5√2 = 15√2 + 10 ≈ 31.18 (rounded to two decimal places)
An two of the three sides are equal, so it is an isosceles triangle.
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