A circle has a radius of 7 centimeters (cm).
What is the approximate area of the circle?
Use the approximation of 22/7 for π in your calculations.
Answers
Answer:
154 cm
Step-by-step explanation:
the formula for the area of a circle is: \(\pi r^{2}\)
Instead of \(\pi\) we will use \(\frac{22}{7}\)
\(\frac{22}{7} . (7)^2\\\\\frac{22}{7} . 49\\\\22 . 7 = 154\\\)
Related Questions
What is the constant of proportionality, y/x?
Answers
Answer: 2
Step-by-step explanation:
1 ÷ 0.5 = 2
explanation: 1 divided by 0.5 =2
For each ride, a taxi service charges an initial fee plus an additional fee based on the number of kilometers of the trip. The graph shows the cost for taxi rides. Select a true statement. The rise is 4 while the run is 2. The selection of answers are:
A: The slope is 2.1. This means that each kilometer costs $2.10.
B: The slope is 5. This means that each kilometer costs $5.
C: The y-intercept is 2.1. This means that the initial fee is $2.10.
D: The y-intercept is 5. This means that the ride lasts 5. kilometers.
Which one is right and why?
Answers
THIS MIGHT NOT BE WHAT YOU ARE LOOKING FOR AND MIGHT NOT BE CORRECT! READ FIRST!
The answer is A. The slope of the line is rise/run = 4/2 = 2.1. This means that each kilometer costs $2.10. The y-intercept is 2.1, which means that the initial fee is $2.10. So the correct statement is: The slope is 2.1. This means that each kilometer costs $2.10.
The other statements are incorrect. The slope is not 5, so each kilometer does not cost $5. The y-intercept is not 5, so the ride does not last 5 kilometers. The y-intercept is the value of the function when the input is 0, which in this case is the initial fee of $2.10.
Given 11 different natural numbers, none greater than 20. Prove that two of these can be chosen, one of which divides the other.
Answers
Answer:11 honestly have no idea but im going to give my best answer it is 31
Answer:
777 838 3
Step-by-step explanation:
sood
6^{2} + b^{2} = 8^{2}
Answers
Answer:
-{2√7} or {2√7}
Step-by-step explanation:
1) Simplify the exponents 6^2 and 8^2 by multiplying 6*6=36 and 8*8=64.
2) Write an equation, 36+b^2=64
3) Subtract 36 from both sides, b^2=28
4) Apply a square root to both sides, √(b^2)=√(28)
5) Simplify the equation, b=-√(28) or b=√28
6) If you want, factor the square root by finding a factor that is a square number, -{√(4)*√7} or {√(4)*√7}; -{2√7} or {2√7}
36+ b^2 = 64
64-36=28
__
_/28
5.3~~ approximately
Please help me. Mark me the branliest.
Topic: Percentage
Q1) 80% of a dog's mass is equal to 24% of the mass of a lion. If the mass of the lion is 105 kg more than the mass of the dog, find the total mass of the dog and the lion.
Answers
We are given that 80% of the dog's mass is equal to 24% of the lion's mass. Mathematically, this can be expressed as:
0.80D = 0.24L
We are also given that the mass of the lion is 105 kg more than the mass of the dog:
L = D + 105
We can use these two equations to find the values of D and L.
Substituting the value of L from the second equation into the first equation:
0.80D = 0.24(D + 105)
Now, let's solve for D:
0.80D = 0.24D + 0.24(105)
0.80D - 0.24D = 25.2
0.56D = 25.2
D = 25.2 / 0.56
D ≈ 45
Now that we have the value of D, we can find the value of L by substituting it back into the second equation:
L = 45 + 105
L = 150
Therefore, the total mass of the dog and the lion is:
D + L = 45 + 150 = 195 kg
So, the total mass of the dog and the lion is 195 kg.
Which graph represents a proportional relationship?
Answers
help would be so appreciated!! thank u in advance
Answers
Answer: 0.375
Step-by-step explanation:
We know that 3/4 of a cup of oats is equal to a full recipe and we're only making half of the full mix.
1) Convert 3/4 to a decimal in order to make the division easier
- 0.75
2) Divide 0.75 by 2
- 0.375
Hope this helps!
[7th Grader]
Answer:We know that 3/4 of a cup of oats is equal to a full recipe and we're only making half of the full mix.
1) Convert 3/4 to a decimal in order to make the division easier
- 0.75
2) Divide 0.75 by 2
- 0.375
Step-by-step explanation:
You have explored and hypothesized Rates through Rates Exploration and Definition of Rates activities. During that work, you learned how to compare, read, and represent two quantities. state your new understanding of Rates.
Answers
help !!!
write the equation of the line.
Answers
Answer:
y = -x + 60
Step-by-step explanation:
From point (0, 60) to point (60, 0), the rise is -60, and the run is 60.
slope = m = rise/run = -1
The y-intercept, b, is 60.
y = mx + b
y = -x + 60
Y= -x+60
Which of the graphs shows the solution to the inequality?
p < –2
Answers
Answer:
Graph C
Step-by-step explanation:
Please Help
I need an answer ASAP
Answers
What is the difference between these two integers?
−14 − (+6) =
Answers
-14 - 6 = -20
Hillary unraveled 3.0 centimeters of ribbon and then continued to unravel 1.5 more centimeters.
Which horizontal NUMBER LINE could be used to SHOW the number of centimeters of ribbon Hillary unraveled?
Answers
The answer you are looking for is B.).
The reason why it is B. is because she kept unraveling the ribbon meaning +.
I took it on T4L that's how I know. Have a great day!
Answer:
B
Step-by-step explanation:
honestly i need points
Does ANYONE know?????
Answers
Answer:
150 votes were casted
Step-by-step explanation:
So first, we know that Amy received 48 votes. Then Neil received 1/4 as many votes as Amy. So we can divide 48 by 4:
48/4=12
Neil got 12 votes. We also know that Neil and Amy's votes together is only 40% of the votes casted in total. So we can add their votes together and then find a fifth of the votes casted by dividing the 40% in half:
12+48=60
60/2=30
So now 30 votes are 20% of the total votes casted, now we just have to multiply by 5:
30*5=150
150 votes were casted
150 cast votes
Explanation :
Write the following number in standard form: 34.71 - 10^-5 =
Answers
Answer:
0.000036
Step-by-step explanation:
Kelly bought a cup of coffee and drank 5/8
of it.
Write an addition equation to represent how much coffee is remaining.
Answers
Answer: x+5/8 = 1 is the equation where x is the remaining coffee.
Step-by-step explanation:
he drank = 5/8
whole coffee = 1
so
let coffee remaining be x
1-5/8 = x
x+5/8 = 1
The required equation, for the remaining cup of coffee, is x = 1+(- 5/8).
To determine the addition equation of coffee remaining in the cup, for the condition Kelly bought a cup of coffee and drank 5/8 it.
What is arithmetic?In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Let the coffee remaining in the cup be x,
Now, according to the question,
1 = x + 5/8
x = 1 - 5/8
For the addition equation,
x = 1 +(-5/8)
Thus, the required equation, for the remaining cup of coffee, is x = 1+(- 5/8).
Learn more about arithmetic here:
brainly.com/question/14753192
#SPJ2
Mio is on the running team. She runs 4 laps in 6 minutes.
At this rate, how long will it take for her to run 15 laps? ____ minutes
Answers
1 lap : 1 mins 30
15 laps : 22 mins 30
Which equation represents the line through (4, 5) and (0, –3)?
Answers
Answer:
y = 2x-3
Step-by-step explanation:
Y=mx+c
We find m first so
m=y2-y1/x2-x1
= -3-5/0-4
= 2
So y=2x+c
Now we find c, so we sub any of points in the line equation!
Sub (4,5) in y=2x+c
5=2(4)+c
-8+5=c
-3=c
So the answer is D !
What is the estimated difference of 28 5/12-6 7/15?
A. 22
B. 22 1/2
C. 23
D. 23 1/2
Answers
Answer:
the answer is A(22)
Answer:
A 22
Step-by-step explanation:
(-3, 5) is located in _____.
Answers
Answer:
II Quadrant
Explanation :
I Quadrant is (+,+)
II Quadrant is (-,+)
III Quadrant is (-,-)
IIII Quadrant is (+,-)
A submarine descended 500 feet below sea level. It then descended another 275 feet. Write and then evaluate a subtraction expression to determine the new position of the submarine.
Answers
Answer:
-500-275= -775
or
-500+-275=-775
Step-by-step explanation:
0-500-275=-775
PLEASE HELP!!!!! SEMESTER TEST PART 2 K12 PLEASE ANSWER ALL THE QUESTIONS GETS BRAINLIEST
Answers
Answ
Step-by-step explanation:
Characteristics is greecex
simplify the expression by arranging the steps in sequence, based on the order of operations.
Answers
You answer, you win 100 points
Answers
Answer:
\(13.5 m^{2}\)
Step-by-step explanation:
area = length × width
= 15m × 9/10m
= 15m × 0.9m
= \(13.5 m^{2}\)
Answer:
\(\Huge \fbox{Area = 13.5 m^{2}$}\)
Step-by-step explanation:
To find the area of the baseboard, we need to multiply the length by the width:
The length of the baseboard is given as 15 metres. The width of the baseboard is given as \(\frac{9}{10}\) metre.To multiply these values, we can convert the width to a decimal by dividing the numerator (9) by the denominator (10):
\(\frac{9}{10} = 0.9\)Now we can multiply the length and width:
\(\text{Area = Length $\times$ Width}\)\(\text{Area = 15 m $\times$ 0.9 m}\)\(\text{Area = 13.5 m^{2}$}\)Therefore, the area of the baseboard is 13.5 m².
__________________________________________________________
please help
What is the solution of the equation 6 + q = 25 1/2?
A. q= 19 1/2. B. q= 18 1/2. C. q= 30 1/2. D. q= 31 1/2
Answers
option:-
\( \boxed{ \rm{A) \: q = 19}}\)\( \: \)
Solution:-
\( \rm{6 + q = 25 \frac{1}{2} }\)\( \: \)
\( \rm{q = 25 \frac{1}{2} - 6 }\)\( \: \)
\( \underline{ \boxed{ \color{green}{\rm{q = 19 \frac{1}{2} }}}}\)\( \: \)
hope it helps! :)
The function f(x) = -x + 5 has domain values of -3, 3, and 9.
Which are the corresponding range values?
A 3,7, and 11
B 7,3, and -1
C 9,3, and -3
D 12,3, and -6
help!
Answers
Answer:
A 3,7, and 11
Step-by-step explanation:
Answer:
A 3,7, and 11
Step-by-step explanation:
Domain is the x-value so you replace all the x's in f(x)=-x+5 with -3,3, and 9
f(-3)=2/3(-3)+5
= 3
f(3)=2/3(3)+5
=7
f(9)=2/3(9)+5
=11
Hope this helps!
Find the value of: 24/25 divided by 4/5
Type mixed numbers like this: WholeNumber numerator/denominator
type the whole number then a space...then type the numerator, a slash, and the denominator WITH NO SPACES between each part.
Type fractions like this: numerator/denominator
type the numerator, a slash, and the denominator WITH NO SPACES between each part
Answers
Answer:
1 1/5.
Step-by-step explanation:
To divide a fraction by another fraction you have to change the equation like "Keep, Switch, Flip".
For the problem 24/25 ÷ 4/5,
You KEEP the first fraction as is, so 24/25
Then, you SWITCH the sign from division to multiplication.
Finally, you FLIP the second fraction upside down, (the reciprocal). So it's 5/4.
The equation is now 24/25 * 5/4, which we can just multiply the numerators and denominators. (or cross cancel first)
24 * 5 = 120
25 * 4 = 100
the fraction is 120/100. Simplified, it can be divided by 10 to make 12/10, and finally divided by 2 to make 6/5, or 1 1/5.
A function with an input of 1 has and output of 3. Which of the following could NOT be the function equation?
1. y= 3x
2. y= x+2
3. y= 4x-3
4. y= 4x-1
Answers
Answer:
The answer is 3
y=4x-3❌
Step-by-step explanation:
1)y=3x=3(1)=3✅
2)y=x+2=1+2=3✅
3)y=4x-3=4-3=1❌
4)y=4x-1=4-1=3✅
The pharmacist has a 2.8 L bottle of cough syrup. If she fills a bottle that is 1,200 ml, how many ml of cough syrup does the pharmacist have left?
160 ml
400 ml
1,600 ml
4,000 ml
Answers
Answer: 1,600 ml
Step-by-step explanation:
You can arrive at this answer by subtracting the amount of cough syrup used (1,200 ml) from the initial amount in the bottle (2.8 L, which is 2,800 ml).
2,800 ml - 1,200 ml = 1,600 ml
I hope this helps :)
Answer: 1,600 mL
Step-by-step explanation:
1. convert the 1,200 mL to L, which is 1.2 L.
2. Subtract that value from 2.8 L, equaling 1.6 L
3. Convert the 1.6 L back into mL by multiplying by 1000, which is equivalent to 1600 mL.
PLEASE ASAP HURRY!!!
Answers
Answer:
Strawberry= 3
Watermelon=3
Coconut=9
Orange=5
Step-by-step explanation:
Quite easy, you can use substitution
First look at the simplest row that can be solved by itself
row 2:
2strawberries +4 = 10
2 strawberries= 6
1 strawberry = 3
Row 3: Strawberry(3)+ orange=8
1 orange= 5
Rpw 4: 14= 1coconut +orange(5)
1 coconut= 9
Row 1: Coconut(9)+ watermelon+ coconut(9)= 21
2 coconut(18)= 21
1 watermelon = 3
Watermelon=3
Coconut=9
Orange=5