21.
Referring to the figure, the circle shown is drawn on grids. Find
A ÷ r and A ÷ r2.
a. 7.1, 3 c. 16, 4
b. 14.2, 3.2 d. 12, 2.7
Answers
Answer:
B. 14.2, 3.2
Step-by-step explanation:
diameter: 9 (count each box as 1)
d/2 = radius --> radius: 4.5
Area of a circle= πr^2
A= 63.6172
A/r = 63.6172/4.5 = 14.1
A/r^2= 63.6172/(4.5)^2 = 3.14
Answer:
b
Step-by-step explanation:
Related Questions
Which row of the input/output table is incorrect?
y = 3x - 4
x y
A 2 2
B 5 8
C 6 14
D 8 20
Answers
Answer:
B 5,8
Step-by-step explanation:
3(5)-4 = 11 not 8
5x 4=11 is false
Pls help I don’t know how to turn these decimals into fractions and it is hw for tomorrow
Answers
Answer: -342.7074
Step-by-step explanation: first multiply 7(-2.655), which is -18.585. since only one of the numbers is negative, the product will also be negative. multiply -18.585 by 18.44. this is equivalent to -342.7074.
Please hurry will give braliny
Answers
Answer:
Step-by-step explanation:
My reasoning for this is because
Step 1) 3^2=9
Step 2) 8-9=-1
Step 3) -1X9=-9
Step 4) -9-6= -15
Answer A is correct
Hope this helps
Help please. Screenshot if below:
The table shows the changes in the times (in seconds) of four teammates. What is the mean change? Write your answer as a decimal. {picture}
The mean change is _____second(s).
Answers
Answer: - 1.28
Hope this help you and or any other person that needs this :)
Step-by-step explanation:
Please hurry will give braliny
Answers
Hello,
[tex]( {c}^{2} + {d}^{2} ) - 2( {c}^{2} - {d}^{2} )[/tex]
[tex] = (( - 2) {}^{2} + 2 {}^{2} ) - 2(( - 2) {}^{2} - 2 {}^{2} )[/tex]
[tex] = (4 + 4) - 2(4 - 4)[/tex]
[tex] = 8 - 2 \times 0[/tex]
[tex] = 8[/tex]
Answer:
d or 16
Step-by-step explanation:
(-2²+2²)-2(-2²-2²)
-2(-4-4)
8+8=16
Select the example which illustrates the distributive property of 7 × 39
(7 + 3) (7 + 9)
(7 × 30) + 9
39 × 7
7(30 + 9) = 7(30) + 7(9)
THIS IS URGENT- BLUE!!!
Answers
Answer:
d) 7(30 + 9) = 7(30) + 7(9)
Step-by-step explanation:
Distributive method:
a(b + c) = ab + acHere given:
7 × 39Among the option's:
1st option (7 + 3) (7 + 9) is wrong, changes final answer.
2nd option (7 × 30) + 9 is wrong, changes final answer.
3rd option 39 × 7 shows commutative property of multiplication.
4th option show distributive method.
What is the sum of -45 and 17?
28
-28
-62
-32
Answers
(-45)+17=-28
So the answer is b
-45 + 17 = -28
Minya is looking at a map that is drawn to a scale in which 0.25 inch represents one mile. If the map shows 3.4 inches between her house and her school, how many miles does she live from school? Did you multiply or divide to find your answer?
Answers
Answer: you would need to multiply to find the correct answer.
PLEASEE HELP ME
Referring to the figure, find the area of the rectangle shown.
a. 48 m2 c. 567 m2
b. 96 m d. 2,268 m2
Answers
Answer:
c
Step-by-step explanation:
area is length multiply width 21 and 27 is 567m2
B IS THE CORRECT ANSWER
Will give 20 points to whoever answers
Answers
Answer: I hope this helps.
Step-by-step explanation:
PLS help me 30p + brainlyest
Answers
Answer: is five over 8
Step-by-step explanation:
Answer: 8 over 5 :p
Step-by-step explanation:
What is 10/11 as a decimal?
Answers
Answer:
0.90909091
10/11 as a decimal is 0.90909091
Answer:
Step-by-step explanation:
The fraction 10/11 can be written in decimal form as 0.9091.
Please hurry will give braliny
Answers
Step-by-step explanation:
answer is 11 or d
squareroot 25=5
so 5-5=0
3²=9
so 9+2=11
Answer:
I believe its C, I could be wrong tho
9.(5)²
HELP ME !!!!!!!!
Answers
Answer:
225
Step-by-step explanation:
5 Times The Square Root Of 2 Is 25, Then I Multiplied That My 9, and Im 100% Sure 225 Is Correct.
Hope This Helps.
Find 3 consecutive odd integers such that the sum of 2 times the first and the last term is equal to 5 times the middle integer.
Answers
Answer: 10
Step-by-step explanation:
-0.2 x -5/6 pls help
Answers
Answer:
⅙ or 0.166666667
Step-by-step explanation:
Can you please help me?
Answers
Answer:
3 and 7
Step-by-step explanation:
Answer:
B - Angles 3 and 7
Hope this helps :)
Step-by-step explanation:
The alternate interior angles are angles that are inside the two lines and diagonally on opposite sides of the transversal.
HELP
Jack wants to model a situation where the perimeter of the rectangle below is 6 ft plus or minus 1.5 ft.
Answers
Answer:
Step-by-step explanation:
The perimeter of the rectangle is given as:
The perimeter of a rectangle is:
So, we have:
Substitute values for length and width
Split
or
or
Divide both sides by 2
or
Solve for x
or
or
Both values of x are negative.
This means that; the absolute value model cannot work, because a rectangle cannot have a negative dimension.
Hence, option (c) is correct.
Read more about perimeters at:
brainly.com/question/6465134
A teacher needs to buy yarn for her students to make a craft in
class. If each student needs 1 1/4 feet of yarn, how many feet of yarn
should the teacher buy for the following 10 students?
a. 10 1/40 feet c. 12 1/2 feet
b. 3 1/2 feet d. 10 1/4 feet
Answers
Answer:C 12 1/2 feet
Step-by-step explanation:1.25 times 10 = 12.5
I hope this helps!
ANSWER THIS CORRECTLY TO BE BRAINLIEST
Answers
Answer:
Q6. -5/2
Q7. -7/24
Q8. 127/24
Q9. 151/12
Step-by-step explanation:
Q6. (−3/4)+(−7/4) = -3-7/4 = -10/4 = -5/2
Q7. 3/8 - 2/3 = 3*3/8*3 - 2*8/3*8 = 9/24 - 16/24 = 9-16/24 = -7/24
Q8. 18+2/3 - 8+3/8 = 20/3 - 11/8 = 20*8/3*8 - 11*3/8*3 = 160-33/24 = 127/24
Q9. 12+1/4 + 27+1/3 = 13/4 + 28/3 = 13*3/12 + 28*4/12 = 39 + 112/12 = 151/12
9 : 32 1/3
PLS HELP ME WITH THIS!!! THIS IS DUE TOMORROW!!! b − 7/4 = -2/3
What is b?
Answers
1/4
Decimal form:
0.25
Here is the shown work:
4x+(-7)/4=-2/3
4x-7/4=-2/3
3(4x-7)=4(-2)
3(4x-7)=-4 times 2
3(4x-7)=-8
3 times 4x - 3 times 7 =-8
12x-21=-8
(12x-21)+21=-8+21
12x-21+21=13
12x=13
12x/12=13/12
X=13/12
What inequality is graphed below?
Answers
Answer:
x is less than or equal to 1.5
(less than sign with a bar below it)
in November, MS Calistro's students read 20 books in December they read 16 books. What is the percent increase or decrease of books they read
Answers
Answer:
20 percent decrease
Step-by-step explanation:
Please help asap its okay if you get it wrong i wont judge.
Answers
Answer:
hm... 9
Step-by-step explanation:
read warriors
by eren hunter
2x8=16
17-7=9
Trust me this is correct!
Please hurry will give braliny
Answers
Answer: D
Step-by-step explanation:
Follow the PEMDAS rule.
It’s not A, because when you solve 2^2 and sq rt of 4, the square exponent and the square root cancels out, so it’s simply 2 x 4. Then you follow by doing division and multiplication, 45/5 is 9 and 2 x 4 is 8, so 9+8=17.
It’s not B, because first solve the numbers in the parentheses. 2^2 is 4, 5+4 is 9. Then solve the square root of 4 which is 2, and you get 45/9x2, which is 10.
It’s not C because 2^2 is 4 and sq rt of 4 is 2, and 4-2 is 2. Then divide 45 by 5 to get 9, and 9+2 is 11.
The correct answer is D, because when you solve 2^2 which gives you 4 and add that to 5, you get 9. The sq rt of 4 is 2, so you get 45/9-2, which is 3.
Hope this helps!
Which expression represents the sequence of operations described below?
subtract 4 from 8, then multiply the result by 5
Answers
Answer:
(8-4)×5
Step-by-step explanation:
expression is as above
Answer:
(8-4) • 5 = 20
Step-by-step explanation:
first you solve what is in the parentheses;
8-4 which = 4
then you multiply 4 by 5 which is 20
The difference between two positive numbers is 40 and the ratio of these integers is 1:3.Find the integers.
Answers
Answer:
the two integers are 20 and 60
Step-by-step explanation:
Let x and y be two positive numbers ,where x < y.
• The difference between the two positive numbers x and y is 40.
Means
y - x = 40
• the ratio of these integers is 1:3
Means
y = 3x
We obtain these two equations:
y - x = 40
y = 3x
Solving the system of equations by substitution :
y - x = 40
y = 3x
⇔
3x - x = 40
y = 3x
⇔
2x = 40
y = 3x
⇔
x = 20
y = 3 × 20 = 60
can you please help me
Answers
Did I do it right? Grade 7 math
Answers
Answer:
You have all the right answer except for the last one it should be 20 not 22
Step-by-step explanation:
Here's way she is buying two candles which is $12 then to rush it it is an extra $8 adding them together you get only $20.
Use the fact that 13x17=221 to find the following and explain how you found each solution
13 × 1.7
130 x 17
13 x 1700
I do not understand what it wants me to do please help
Answers
Answer:
13 × 1.7
130 × 17
13 × 1700
13 × 17× 100
221 × 100
22100
So the answer is 22100
13 x 1.7 =22.1
130 x 17 =2210
13 x 1700 = 22100
Explanation: i believe your learning about how to move your decimal place. If you see the given information 17 is the number we are looking at. When the first equation comes up, there’s a decimal making 17 -> 1.7 . Then you move the decimal in the other direction making the 17. turn to 170. then 1700. Making your answer 22100