find the area of a circle whose diameter is 7cm​

Answers

Answer 1

Answer:

3.5pi

Step-by-step explanation:

just multiply together and you'll get your answer

Answer 2

Answer:

38.5 cm^2

Step-by-step explanation:

Diameter ( d ) = 7 cm

Radius ( r ) = 7 / 2 cm

Formula : -

Ar ( circle ) = π r^2

π r^2

= ( 22 / 7 ) x ( 7 / 2 )^2

= ( 22 / 7 ) x ( 49 / 4 )

= 38.5 cm^2


Related Questions

III
O SYSTEMS OF LINEAR EQUATIONS
At a basketball game, a vendor sold a combined total of 150 sodas and hot dogs. The number of sodas sold was 30 more than the number of hot dogs sold. Find
the number of sodas sold and the number of hot dogs sold.
Number of sodas sold:
Number of here

Answers

Creo que es multiplicando 4,500

PLEASE HELP !!
What's the domain and range of the exponential growth function?

Answers

Answer:

you have to multiply the dividend by 2x+9y/22y

Step-by-step explanation:

Indicated operation? Perform it?

Answers


98

First you do the exponents.

11^2 = 121

-3^3 = -27

2^2 = 4

So now we have 121 - 27 + 4

And you just go left to right now

121 - 27 = 94

94 + 4 = 98

So the answer is

98

Hope this helps

Choose all the numbers that could be common denominators for 11/12 and 4/5.

Answers

Answer:

60

Step-by-step explanation:

list down the multiples of 12 and 5 to find the answer

HOPE THIS HELPS YOU

60 is the numbers that could be common denominators for 11/12 and 4/5.

What is  multiplication?

In mathematics, multiplication can be stated as a method of finding the product of two or more numbers. It is one of the important or primary arithmetic operations, that we use in everyday life.

here, we have,

given that,

11/12 and 4/5.

We have to do, the multiples of 12 and 5 to find the answer.

i.e. 12 * 5 = 60

so, 60 is the numbers that could be common denominators

Hence, 60 is the numbers that could be common denominators for 11/12 and 4/5.

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Question
A square has an area of 81 square inches. How long are its sides?



Someone please I need help ASAP !!

Answers

Hi,

Since to find the area you multiply the sides, I did the square root of 81 which is 9 therefore each side must equal 9 as 9x9=81

Hope this helps !

Answer:

Step-by-step explanation:

it is like 9x9=81

but yeah like he said it is a square so all sides are the same

but that is if you want to find the parameter

this question is talking about area

so when a question gives you an area you ask yourself what can be multiplied by what in order to give me the area

or since all sides are the same like he said you could just do simple division and do 81/9 which will =9

and since the question mentions that the area is in square inches it is obvious that the answer would be put in inches

answer: 9 inches

state the domain and range of the function:
y = -(x+8)^2 +9

Answers

Domain: All real numbers (-infinity, infinity)

Range: [9, -infinity)

Halla el 72% de 40 por favor ayúdenme a verificar si lo hice correcto

Answers

The answer is 28.80
Can I get brainliest answer

Penny reads 10 pages in 1/3 hour. What is the unit rate for pages per​ hour? For hours per​ page?

Answers

it would probably be 7, since 1 hour and 30 minutes would be 90 minutes, and she read 10 pages in that long, it would most likely be one page every 10 minutes, but since she read 10 in 90 minutes and not 9, I believe we would add 1 extra page to the amount she read in one hour, and since one hour is 60 minutes, it would probably be 6 + 1, which is 7.

hopefully Im right and this was helpful.

cuanto es 21:45 dividido a 7:15?​

Answers

Answer:

Entraría 3 veces.

Step-by-step explanation:

Podemos probar esto encontrando el máximo común divisor entre 21 y 45

21: 1,3,7,21

45: 1,3,5,9.15,45

Encontramos que 3 es el máximo factor común. Entonces dividimos ambos números por 3. Para obtener 7:15.

20,003x 6 using distributive property of multiplication

Answers

Answer:

360

Step-by-step explanation:

20.3 x 6

Find the surface area 5 8 10

Answers

Answer:

340

Step-by-step explanation:

last time I got this type of question, I either just multiplied it or sum, try doing different methods if u can because I got this question right and I forgot how I did it, but I feel like I multiplied something

Answer:

340

Step-by-step explanation:

which is the result of the surface area

Z
What is m 2?
y
+
What is m 1?
1
4
13 16
2/3
>
14 15
х
5
75°
912
6
7
10 11
w

Answers

Answer:

M.2, formerly known as the Next Generation Form Factor, is a specification for internally mounted computer expansion cards and associated connectors. M.2 replaces the mSATA standard, which uses the PCI Express Mini Card physical card layout and connectors.

Step-by-step explanation:

This question does not make sense!

What is the zero of f?


-5


2


-2


5

Answers

Answer:

0

Step-by-step explanation:

Let A, B, C, X be sets with A, B, and C are subsets of X. Prove the following set equalities
a) (A ∩ B)' = A' ∪ B'

Answers

Answer:

[tex] let \:x \in (A\cap B)'\\\Rightarrow x \notin (A\cap B) \\\Rightarrow x \notin A \:or\: x\notin B\\ \Rightarrow x \in A' \:or \:x \in B'\\\Rightarrow x \in A' \cup B'\\\therefore (A ∩ B)' = A' ∪ B' [/tex]

It is proved that , A Intersection B complement is equal to the union of the complements of the sets A and B i.e., (A ∩ B)' = A' ∪ B'.

What is a set ?

Sets are represented as a collection of well-defined objects or elements.

It is given that A , B , C , X are sets with A , B and C are subsets of X.

Let's assume X be an element of A intersection B complement. or (A ∩ B)'.

i.e.,

X ∈ (A ∩ B)'

Also , we can say that :

X ∉ ( A ∩ B)

This implies :

X ∉ A or X ∉ B

or we can also say that :

X ∈ A' or X ∈ B'

or

X ∈ A' ∪ B'

So , we can conclude that :

(A ∩ B)' = A' ∪ B'

or A Intersection B complement is equal to the union of the complements of the sets A and B.

Therefore , it is proved that , A Intersection B complement is equal to the union of the complements of the sets A and B i.e., (A ∩ B)' = A' ∪ B'.

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Round 0.0625 to the nearest hundredth​

Answers

0.06
Because you take away the 2 and the 5 which makes it 0.06
This is the answer with explanations.

Find the perimeter P of
v
OJKLM
with vertices J(-3,-2), K(-5, -5), L(1, -5), and M(3,-2). Round your answer to the nearest tenth, if
necessary
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P=
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7
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9
o
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W
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lab

Answers

Answer:

P = 3.6 + 6 + 3.6 + 6 = 19.2 units

Step-by-step explanation:

distance between (-3,-2) and (-5,-5) =

Sqrt[(-5-3)^2+(-5 - -2)^2]

Sqrt (4+9) = 3.6

d = (-5,-5) and (1,-5) =

Sqrt[(1 - - 5)^2 + (-5 - - 5)^2]

= sqrt (36 + 0) = 6

d = (1,5) and (3,-2)

Sqrt[(1 - - 3)^2 + (-5 - - 2)^2]

Sqrt(4+9) = 3.6

d = (3,-2) and (-3,-2)

Sqrt[(-3-3)^2 + (-2 - - 2)^2]

Sqrt (36+0) = 6

Find the missing dimension of the prism.​

Answers

Answer:

10

Step-by-step explanation:

To find volume you have to multiply all 3 sides 7*8*x=560 = 56*x=560 we divide it by 56 and get x=10


What must be the length of PQ in order for AJKL to be
similar PQR

Answers

9514 1404 393

Answer:

  (d)  18

Step-by-step explanation:

If ΔJKL ~ ΔPQR, then we must have ...

  PQ/JK = QR/KL . . . . . ratios of corresponding sides are the same

  PQ = JK×QR/KL = 12×9/6 = 2×9

  PQ = 18

Answer:

18

Step-by-step explanation:

The scale factor for this is 1.5,

JL = PR

JL is 14, and PR is 21, 14 * 1.5 = 21

KL = QR

KL is 6, and QR is 9, 6 * 1.5 = 9

So we do the same for JK and PQ

Since PQ is 12, we need to find what 12 * 1.5 is.

12 * 1.5 = 18

PQ = 18

Venetta buys 2 pounds of pistachios and 3 pounds of almonds. The pistachios cost $4 more per pound than the almonds. She pays a total of $48. Which of the following are true? Select all that apply.
A. One pound of pistachios plus 1 pound of almonds cost $20.
B. The pistachios cost twice as much per pound as the almonds.
C. Reducing the number of pounds of almonds by 1 results in a total cost of $40.
D. The cost a, in dollars, of 1 pound of almonds is modeled by 2(a – 4) + 3a = 48.
E. The cost p, in dollars, of 1 pound of pistachios is modeled by 2p + 3(p – 4) = 48.

Answers

The options that are true include:

A. One pound of pistachios plus 1 pound of almonds cost $20.

C. Reducing the number of pounds of almonds by 1 results in a total cost of $40.

E. The cost p, in dollars, of 1 pound of pistachios is modeled by 2p + 3(p – 4) = 48.

Cost of almond = a

Cost of pistachios = a + 4

Therefore, based on the information given, the equation to solve the question will be:

2(a + 4) + 3a = 48

Collect like terms

2a + 8 + 3a = 48

5a = 48 - 8

5a = 40

a = 40/5

a = 8

Almonds cost $8

Pistachios cost $12

In conclusion, the correct options are A, C, and E.

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https://brainly.com/question/24429956

What’s an equivalent fractions for 6/8 with a 20 as the new denominator

Answers

Answer:

15/20

Step-by-step explanation:

Divide your denominator by your previous/compared denominator (20/8) to find the number as your numerator. Take the found numerator (2.5) and multiply it times the compared numerator (2.5 x 6) giving your 15/20.

Hopes this helps!

PLEASE ANSWER THIS AS SOON AS POSSIBLE.

Answers

There are 76200000 or 762 x 10^5 more people in Mexico than Canada.

What is reciprocal of 2 1/2

Answers

Answer:

0.4

Step-by-step explanation:

type in a calculator 1 divide by 2.5 to get the answer

Javier says that when you add a positive and a negative number the sum is always negative. is Javier or statement true or false explain your reasoning​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Above statement is incorrect, because if the positive number is equal to the numerical value of negative number then their sum will be zero, and If the numerical value of positive number is greater than that of negative number then the sum will be a positive number, so the probability is of both three, the sum can be positive, negative as well as zero.

Answer:

The above statement is false.

Explanation:

If the positive number is greater than the negative, then it will stay positive.

Ruby has $130 saved. She is saving $15 dollars more each week. In how many weeks will she have $400 saved to buy the new phone she wants?

Answers

You answer is In 18 weeks he'll have the $400 for the new phone.

I know this because she needs 400 but already has 130 so (400-130=270)

This means that Ruby is missing 270 to get to the 400 that he needs for the phone.He gets $15 per week so now that's (270/15=18).Which means that in 18 weeks Ruby will complete to full $400 that he needs for a new phone.

The required solution of weeks will she have $400 saved to buy the new phone she wants is 18 weeks.

What is arithmetic?

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Given:

Ruby has $130 saved. She is saving $15 dollars more each week.

According to given question we have

let x represent the number of weeks

she saves $15 each week,

then in x weeks she will save = 15x dollars.

Add this to the 130 she has already saved, and at the end of each week we get

15x + 130dollars.

So,

15x + 130 = 400

Subtract 130 from both sides we get

15x-130+130=400-130

15x=270

Divide by 15 on both sides we get

x=18

Therefore, the required solution of weeks will she have $400 saved to buy the new phone she wants is 18 weeks.

Learn more details about arithmetic here:

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Witch of the following expressions are equivalent to 6+(-4)-5 A -(-6+4)-5 B 6-4-(-5) C 6-(4+5) D 6+4-5 E -(-6)+(-4)-(-5)

Answers

Answer:

c is your answer

Step-by-step explanation:

have a nice day!

(-6,7) (0,3)

I'm having treble finding the slop I need the sem

Answers

Did you use the formula

gradient =

[tex] \frac{y2 - y1}{x2 - x1} [/tex]

??

I'm not shear but i think that run to -6 then 3 is the correct sorry am learning it

Find the least common denominator (LCD) of 5/8
and 1/4

Answers

Answer:

8

Step-by-step explanation:

1. 1/4 × 2/2 = 2/8 (denominator is 8)

2. 5/8 × 1 = 5/8 (denominator is 8)

Therefore, the common denominator is 8.

The least common denominator is 8.
5/8=5/8 x 1/1=5/8
1/4=1/4 X 2/2 = 2/8

Solve for x: 1 < x + 3 < 4

4 > x > 7
4 < x < 7
−2 > x > 1
−2 < x < 1
100 points!!!

Answers

Answer:

Solve for x: x < 1

Step-by-step explanation:

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Math 1 Graded Assignment Unit Test, Part 21 Polynor
(Score for Question 3:___ of 5 points)
3. Multiply the polynomials (+3a-7) and (24 - a + 4). Simplify the answer. Show your work.
Answer:

Answers

Answer:

9a-3

Step-by-step explanation:

a^2=2a+3a=5a-7+4=5a-3+(4a-a)=3a+5a=9a-3

Lindsey sold stationery to her family and her mother's friends shw deposited the $125 shw earned in a savings account. The account earns 5.18% interest annually. If she does not deposit or withdraw any money for 18 months how much will she have in her account

Answers

Your Answer will be: $134.71

Answer:

$134.71

Step-by-step explanation:

A = P(1 + rt)

A = Amount after t months or years

P = Principal or amount saved

r = interest rate = 5.18% = 0.0518

t = time.in years = 18 months

= 1 year and 6 month

= 1.5 year

A = $125( 1 + 0.0518 × 1.5)

A = $125 ( 1 + 0.0777)

A = $125(1.0777)

A = $134.71

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