Answer:
The area is approximately 201.06
Step-by-step explanation:
If you use the equation pi r^2, then we will get the answer. Since the diameter is double the radius, we should know that the radius is 8ft. Then we do the math and get the answer above.
Answer: A≈201.06ft²
Step-by-step explanation:
How to Calculate Diameter?
Diameter = Circumference ÷ π (when the circumference is given)
Diameter = 2 × Radius (when the radius is given)
Diameter = 2√[Area/π] (when the area is given)
how many solution does 4x-5(2x+1)=6x+1 have
The number of solution the equation 4x - 5 (2x + 1) = 6x + 1 have is one.
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We have,
4x - 5 (2x + 1) = 6x + 1
4x - 10x - 5 = 6x + 1
-6x - 5 = 6x + 1
-5 - 1 = 6x + 6x
-6 = 12x
x = -6/12
x = -1/2
This means,
The equation has one solution.
Thus,
The equation has one solution.
Learn more about solutions of equations here:
https://brainly.com/question/545403
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These are homework questions I don't understand- can I please get help?
WARNING: ANSWER NOT NOT BE RIGHT! Answer: 1- A I really hope this helps! Im not good at this stuff, but I hope I did good! This not be right!
Answer:
1. a. draw 5 boxes with 7ś in them and x=7
2. number 7. x+x+x=9 that is A. and x+3=9 for B.
3. part a: x+9=16 draw a box with x+9=16 and x=7
3. part b: 4(x)=28 draw a bout that matches that and x=7
Step-by-step explanation:
1. the value of x is seven because 5x = 35 divide x on both sides is 7
2. number 7. x+x+x=9 that is A. and x+3=9 for B.
3. part a: x+9=16 draw a box with x+9=16 and x=7
3. part b: 4(x)=28 draw a bout that matches that and x=7
4x-5(2x+1)=6x+1. how many solution will this have? is this right
PLEASE HELP!!!!!!A set of data includes 98 data points ranging from 0 – 160. If the data is split into classes with a range of 10 (1 – 10, 11 – 20, etc), and there are no values that fall in the class 81 – 90, what can you say about the data?
1 The mean of the data will not be between 81 – 90.
2 All the data lies below 80.
3 The relative frequency of the class 81 – 90 is 0.
4 The median could be in the range 81 – 90.
Can anyone help out with this?
Answer:
Step-by-step explanation:
Find all the solutions to z^4 = -4 in complex numbers.
The complex numbers should be a+bi, where a and b are real
Answer:
z = 1 - i
z = 1+i
z = -1 - i
z = -1 + i
Step-by-step explanation:
I think?
Can I please have help
Can I please have help
Charlie bought pound of American cheese and pound of Swiss cheese. Josh bought pound of cheddar cheese and pound of jack cheese. Josh says that they bought the same amount of cheese. Is he correct? Explain.
Answer: It is not possible to determine whether Josh is correct without more information. In order to determine whether they bought the same amount of cheese, it would be necessary to know the weight of the cheeses that Charlie and Josh bought. If the weight of the cheeses that Josh bought is equal to the weight of the cheeses that Charlie bought, then Josh is correct and they did buy the same amount of cheese. However, if the weight of the cheeses that Josh bought is not equal to the weight of the cheeses that Charlie bought, then Josh is incorrect, and they did not buy the same amount of cheese.
Step-by-step explanation: It's hard to say because you would need the weight of the cheese.
Hallie and Mattie donated blue jeans to the clothing drive. Hallie donated 4 pairs of blue jeans. Mattie donated 6 pairs of blue jeans. Write a ratio to represent the relationship between Hallie's donation of jeans and Mattie's donation of jeans.
Answer:
2:3
Step-by-step explanation:
Hallie's Donation : Mattie's Donation = 4:6
simplified, it is 2:3
i needd help with this answer
this is an 10 points but it gon say 50 bc yall are spliting
Answer:
we 10 points because you are vb and your classmate have 50 point because their bright
Answer:
I think it's A.
Step-by-step explanation:
Spheres have no faces, sides, or verticles. this saying/fact is from a website https://flexbooks.ck12.org/cbook/ck-12-middle-school-math-concepts-grade-7/section/10.1/primary/lesson/classification-of-solid-figures-msm7/#:~:text=A%20sphere%20is%20a%20solid%20figure%20that%20has,has%20one%20face%2C%20but%20no%20edges%20or%20vertices.
Find the quotient. 3 ÷ 2/5
Answer:
7 1/2
Step-by-step explanation:
Keep Change Flip
3 x 5/2
=15/2
=7 1/2
Hope this helps :)
Please help with this question..
Answer: I don’t know
Step-by-step explanation:
but I’m really broke
Answer:
(9 - v)^7 ?
I'm kinda confused
Select all ratios equivalent to 1:3 A. 9:21 B. 5:15 C. 4:12
A right triangle has one leg with a length of 5 units. The hypotenuse is 30 units long. What is the length of the other leg?
A. 5 Units
B. 25 Units
C. V 875
D. V 375
Answer: C. [tex]\sqrt{875[/tex]
Step-by-step explanation:
use Pythagorean theorem [tex]a^{2}+b^{2}=c^{2}[/tex]
a=5 c=30 solve for b
[tex]25+b^2=900[/tex]
subtract 25 from both sides to get [tex]b^2 =875[/tex]
then square both sides to get [tex]\sqrt{875[/tex] for the length of the other leg
Football team needs to gain 10 yards to score touchdown. On the first play the team gained 7 yards. on the second play they were penalized and lost 5 yards on the. third play they gained 2 yards. how many more yards must they gain on the forth play in order to score?
A. 2 yards
B. 4 yards
C. 6 yards
D. 8 yards
PLEASE HELP
Answer:
Step-by-step explanation:
Select all ratios equivalent to 12:8 A. 15:10 B. 27:12 C. 14:2
Answer:
(12/8 = 1.5)
A) 15:10
A restaurant customer left $1.40 as a tip. The tax was 5% and the tip was 20% of the cost including tax. a. Which information is not needed to compute the bill after tax and tip? b. What was the total bill?
Answer:
Step-by-step explanation:
(10 x 100) x = 0.70. (10÷ 10) 100 ÷ 10. = 1/10 x = 0.70. X 0.70 x 10. X= 7.00
I'm super confused about this
20 POINTS TO WHOEVER GETS THIS RIGHT <3
What is the value of the expression below when x=8 and y=4
9x-2y
Answer 64
Step-by-step explanation: if x is 8 you do 8 x 9 which is 72. Then you do 2 x 4 which is 8. So now you have 72 - 8 which is 64.
Garth sells baseball caps outside the stadium. The graph shows the number of caps sold and the income from the sales. It represents a linear function.
Which statement best describes Garth's income from selling these caps?
A. He gets $5.00 per cap.
B. He gets $25.00 per cap.
C. He gets $34.00 per cap.
D. He gets $12.00 per cap.
On monday, your bank account balance was -$12.58. Because you didn't realize this, you wrote a check for $30.72 for groceries. a) What is the new balance in your checking account? b) The bank charges a $25 fee for playing a check on a negative balance. What is the balance in your checking account after this fee? c) How much money do you need to deposit to bring your account balance back up to $0 after the fee?
Answer:
a) The new balance in your checking account is -$12.58 - $30.72 = -$43.30.
b) After the bank charges a $25 fee for overdrafting, the balance in your checking account will be -$43.30 - $25 = -$68.30.
c) To bring your account balance back up to $0 after the fee, you will need to deposit $68.30.
Step-by-step explanation:
Answer:
First, you subtract the 30.72 from the -12.58 which is -43.03 which is therefore how much you have in your account. Then we subtract another 25 for the fee. -68.03 Is how much you have after paying the fee.
Therefore, to get to 0, you need to pay 68 dollars and 3 cents.
Step-by-step explanation:
Out of a class with 25 students, 24 of them returned their permission slips to go on the field trip. what percentage of the students returned their permission slips>
Answer: 96%
Step-by-step explanation: 24/25= 0.96
Solve the system of linear equations by elimination. Check your solutions.
-5x + 3y = -6
9x - 4y = 1
We can divide both sides of the equation by 43 to solve for x:
90x / 43 - 47y / 43 = -49 / 43
x = -49/43
We can substitute this value for x back into either of the original equations to find y. Let's substitute it into the first equation:
-5x + 3y = -6
(-5 * -49/43) + 3y = -6
y = (-6 + 5 * 49/43) / 3
y = 17/43
The solution to the system of equations is (x, y) = (-49/43, 17/43).
To check our solution, we can substitute the values we found for x and y back into the original equations and see if they hold true.
In the first equation, -5x + 3y = -6, substituting the values we found for x and y gives us:
(-5 * -49/43) + (3 * 17/43) = -6
This simplifies to -6 = -6, which is true, so the solution holds for this equation.
In the second equation, 9x - 4y = 1, substituting the values we found for x and y gives us:
(9 * -49/43) - (4 * 17/43) = 1
This simplifies to -1 = -1, which is true, so the solution holds for this equation as well.
Therefore, the solution (x, y) = (-49/43, 17/43) is correct.
Select all ratios equivalent to 30:14 A. 6:4 B. 21:7 C. 60:28
Answer:
c
Step-by-step explanation:
30:14 The division isn’t proportional. 30/5 is 6 but 14/5 is not 4.
6.4
—————
30:14 Same here as above just now the 14 is proportional just not the 21.
21:7
—————
30:14 Finally! The 2nd ratio is twice the first!
60:28
Answer: hope this helps ♡
C. 60:28
Step-by-step explanation:
30:14
A. 6:4 → 30 ÷ 6 = 5 & 14 ÷ 4 = 3.5 (the answers aren't equal) 30:14 ≠ 6:4
B. 21:7 → 30 ÷ 21 = 1.4 & 14 ÷ 7 = 2 (the answers aren't equal) 30:14 ≠ 6:4
C. 60:28 → 30÷60 =0.5 & 14÷28 = 0.5 (the answers are equal) 30:14 = 60:28
Nine out of 45 students said that their favorite color was red. what percentage of students said that red was their favorite color?
So if theres 45 students in total, thats 100% of students, nine of those would be 20%
The equations below represent the numbers y of tickets sold after x weeks for two different local music festivals. Create a table for the ticket sales each week.
Answer:Part a) 3.5 weeks
Part b) 185 tickets
Step-by-step explanation:
29 POINTS TO WHOEVER GETS THIS RIGHT
What is the value of the expression below when w=7 and x=5
3w + 10x
Answer:
3 × 7 = 21
10 × 5 = 50
21 + 50 = 71
Therefore, the answer is 71.
Answer:
41
Step-by-step explanation:
Think about the division expression 2 1/5 ÷ 3/5
Answer: hope this helps ♡
2⅕ ÷ ⅗ = 11/3 or 3⅔
Step-by-step explanation:
2⅕ ÷ ⅗
= 11/5 (2*5+1) ÷ ⅗
= 11/5 × 5/3 (flip the fraction)
= [tex]\frac{11*5}{5*3}[/tex]
= 55/15 → 11/3 (divided by 5) or 3⅔
Marna thinks that about 35% of her mail is junk mail. She gets about twice as much regular mail as junk mail. Is she correct? Explain.