which is the area of a circle with a diameter of 7 units? (use 3.14 for pi)​

Answers

Answer 1

Answer:

The area of circle = πR ^2

And diameter = 7 units

By interchanging d in R =d/2 = R =7/2 = 3.5

Step-by-step explanation:

πR ^2 =3.14 x (3.5)^2 =3.14 x 3.5 x 3.5 =38.465 (unit)^2 Answer

Hope it's help ^_^


Related Questions

the length of a rectangle exceeds its breadth by 4 cm. if the area of the rectangle is 96cm squared . find the length and breadth

Answers

Answer:

length=12; breadth=8

Step-by-step explanation:

l=w+4

w(w+4)=96

w²+4w-96=0

(w+12)(w-8)=0

width=8

length=w+4=12

Answer:

length=12; breadth=8

Step-by-step explanation:

Hope this helped have an amazing day!

what is the answer to this problem 9.87 x 10^1

Answers

Answer:

=9.87x10

Step-by-step explanation:

Simplifies to:

9.87x10

=9.87*x10

=9.87*(x*x*x*x*x*x*x*x*x*x)

=9.87x10

What is the remainder after you divide the polynomials?
(2x^4+3x^3-x-5) divided (x+2)

Answers

The remainder is 5/x+2

Explanation: full equation is 2x^3-x^2+2x-5+(5/x+2)

HELP ASAP!!

the questions are in the picture​

Answers

Answer:

1. Y≤2x-4

2. Yes, since its a solid line it includes points on the line

Step-by-step explanation:

Answer: y [tex]\leq[/tex] 2x - 4

Formula is   y = mx + b

m is the slope and b is the y-intercept.

Yes its a solution because the line passes through the point (2,0).

Mark me brainllest :D

what is 100,000,000,000,000,000, divided by 100

Answers

Answer:

1e+14

Step-by-step explanation:

SAS Congruence Theorem Two Column Proof, Pictures Included.


WILL GIVE BRANIEST

Answers

Answer:

we prove the both triangle

first we profe sides

two years late but hope this helps !!

Please help me ! Please!

Answers

It’s 19 so the answer would be B

Answer:

B) 19

Step-by-step explanation:

The first step is to substitute 2 for x into the equation. f(2) = 2(3^2)+1

The second step is to square 3 which equals 9. f(2) = 2(9)+1

The third step is to multiply 2 by 9 which equals 18. f(2) = 18+1

The fourth step is to add 18+1 which equals 19. f(2) = 19

a 15-inch candle burns down in 10 hours. at what rate does the candle burn in inches per hour

Answers

Answer:

5 inches per hour

Step-by-step explanation:

Answer:

1.5 inches per hour

Step-by-step explanation:

58.6 km/h in cm/min solve and explain me ​

Answers

Answer:

PLEASE MARK AS BRAINLIEST!!!!!!!

58.6 kilometer/hour = 97666.666667 centimeter/minute

Step-by-step explanation:

How to Convert Centimeter/minute to Kilometer/hour

1 cm/min = 0.0006 km/h

1 km/h = 1666.6666666667 cm/min

Example: convert 15 cm/min to km/h:

15 cm/min = 15 × 0.0006 km/h = 0.009 km/h

What is the solution to this equation? t =

Answers

Answer:

the person above me is correct it is 14.5

Step-by-step explanation:

:)

The solution to given equation is 91.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.

The given equation is t-15=76.

Here, transpose 15 to RHS of the equation, we get

t=15+76

t=91

Therefore, the value of t from the given equation is 91.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ6

"Your question is incomplete, probably the complete question/missing part is:"

What is the solution to the equation?

t-15=76

An investment that you bought for __________ and sold for __________ made a profit.
700-600
700-500
600-500
600-700

Answers

Step-by-step explanation:

600-700 is the correct answer

pls mark me as BRAINLIAST

600-700 !

explanation:
to make profit, you have to sell for a higher price than what you bought it for (:

Please help using the picture below I will give BRAINLY!

Answers

Answer:

2) 76

3)  64

Step-by-step explanation:

The actual answer is
A) 76
B) 62

The other person did a miscalculation

If the dotted figure is the image, the original figure was reflected over the.

Answers

Answer:

y axis

Step-by-step explanation:

having trouble with this graph

Answers

Answer:its a

Step-by-step explanation:i did this before

A is your answer you’re welcome!

FIRST GETS BRAINLIEST HURRY

Answers

Answer:

C is the answer

Step-by-step explanation:

A 13 3/4 -inch candle burns down in 11 hours. If b represents how much of the candle, in inches, has burned away at any time given in hours, t, write a proportional equation for b in terms of t that matches the context.

Answers

Answer:

5t = 4b

Step-by-step explanation:

Here, we want to write a proportional relationship for b in terms of t

From the question, b represent the amount of candle burned away in a given time t hours

From what we have initially, 13 3/4 burnt in 11 hours

So in 1 hour, the amount burnt will be;

55/4/11 = 5/4

5/4 inches of candle burnt in 1 hour

5/4 inches = b/t

So b inches burnt in t hours

5/4 = b/t

5t = 4b

Help me and I’ll give brainliest to u

Answers

Answer:

7p

Step-by-step explanation:

Since it is 7 dollars per person, and p stands for person, the admission fee would be 7p.

Thank you, I hope you learned from this answer! If it did help, please mark this as brainliest! Thank you!

Find the value of x please

Answers

Step-by-step explanation:

In isoceles triangle two sides are equal and two angles are equal.

Then,

∠R = ∠T = (5x-40)°

Then,

∠RTS + ∠STU = 180° (bcoz it lies on a straight line)

(5x-40) ° + 5x = 180°

10x = 220°

x = 22°

Therefore,

Option A is correct✔

it should be option A because it makes a lot of sense so your answer is correct

James calculated the height of a cylinder that has a volume of 324 pi cubic inches and a radius of 12 inches. His work is shown below. V = B h Step 1: 324 pi = pi 12 squared h Step 2: 324 pi = 24 pi h Step 3: StartFraction 324 pi over 24 pi EndFraction = StartFraction 24 pi over 24 pi EndFraction h Step 4: h = 13.5 pi inches What is the first error that James made when calculating the height of the cylinder? In step 1, he substituted into the volume formula incorrectly. In step 2, he calculated 12 squared incorrectly. It should be 144 rather than 24. In step 4, the Pi should have canceled, making the correct answer 13.5 cm. James calculated the height of the cylinder correctly.

Answers

Answer:

I believe the answer is B let me know if it's wrong

Answer:

(B) In step 2, he calculated 12 squared incorrectly. It should be 144 rather than 24.

0.075,0.75%, 3/4.. Which of the following correctly orders the values above from least to greatest

Answers

Answer:

0.075,3/4,0.75

Step-by-step explanation:

Answer:

0.75%, 0.075%, 3/4

Step-by-step explanation:

Took the test and this is the correct answer

This formula gives the yearly depreciation D for
an item in terms of its cost C, its salvage value
S, and the number of years 71. Solve the
equation below for C.
C-S
De

Answers

Answer:

C = 71D + S

Step-by-step explanation:

The computation of the equation for C is as follows:

Given that

Yearly Depreciation = D

Cost = C

Salvage value = S

Number of years = 71

Based on the above information

The formula for the yearly depreciation i.e. D is

D = (C - S) ÷ 71

71D = C - S

71D + S = C

So, the equation would be

C = 71D + S

round 17 21/30 to the nearest whole number

Answers

Answer:

i think 18

Step-by-step explanation:

dont come at me if im wrong

Name:
BARALAR
Index No asuelon
25. The average of 5 girls is 21 years. If the age of one of them is 8 years
calculate the average age of the remaining girls.​

Answers

Answer:

24.25 years

Step-by-step explanation:

We know that average of a set = (sum of all terms) / (number of terms). Right now, we know two things: the average of the set (21 years) and the number of terms in the set (5). Therefore, we can rewrite the equation to solve for the sum of all terms.

We have: 21 = [tex]\frac{sum}{5}[/tex]

sum = 21 · 5 = 105

Now we know the sum of ages of the 5 girls. We want to find the average age of the 4 remaining girls when we take out the girl who is 8 years old. As previously stated, to find the average of a set, we need to know two things: the sum of all terms in the set and the number of terms in the set. Right now, we only know one of those things: the number of terms in the set, which is 4. To find the sum, we can simply subtract the 8-year-old girl's age from the sum of ages of the 5 girls, which would be 105 - 8 = 97.

Therefore, the average age of the 4 remaining girls is [tex]\frac{97}{4} = 24.25[/tex] years.

Hope this helps!

Answer:

24.25

Step-by-step explanation:

Since the average of 5 girls is 21, there total age is 105 (21*5)

If one of them is 8, 105-8 is 97 and 97/4 (because there is 4 girls left) is 24.25

Hope this helps you!

The measures of the angles of a triangle are shown in the figure below. Find the
measure of the smallest angle.
(3x-9)°
(x+15)

Answers

Answer:

318.6

Step-by-step explanation:

(3x-9) + (x+15) = 180

3x (x+15) -9 (x+15)

4x + 45x - 9x + 6 = 180

40x + 6 = 180

40x = 180 - 6

40x = 174

x = 4.34

(3x-9) = 4.34 * 3x-9 = 4.02

(x+15) = 4.34 + 15 = 19.34

180 - (4.02 + 19.34)

= 180 - 23.36

= 156.64

hope this answer helps!!

give your answer as either an improper fraction or mixed number​

Answers

Answer:

1 1/10

Step-by-step explanation:

2 1/5= 2 2/10

33/10- 22/10= 11/10 or 1 1/10 or 1.1

BTW you can use google!

11/10 and i dunno what the mixed number is sorry

(02.02 LC)
If f(x) = 3(x + 4), find f(2).


I NEED HELP IMMEDIATELY

Answers

Answer:

f(2) = 18

Step-by-step explanation:

f(2) = 3(2 + 4)

f(2) = 3(6)

f(2) = 18

.

This formula is used to calculate the weekly pay of a letting agent. Weekly pay = basic pay + number of houses rented x bonus The basic pay is £400 and a bonus of £75 is paid for each house rented. Mrs Lewis rents out 5 houses in one week. Calculate her pay.

Answers

Answer:

£775

Step-by-step explanation:

From the question, it was given that:

Weekly pay = basic pay + number of houses rented x bonus

This expression can be used to determine the amount of money being paid to the agent every week.

When basic pay = £400, bonus = £75, and the number of house rented = 5.

Then,

Weekly pay = 400 + 5(75)

                    = 400 + 375

                    = 775

Weekly pay = £775

The amount of money paid to Mrs Lewis every week is £775.

HELP ME SOLVE THIS... BRAINLIEST AND 25 POINTS WILL BE GIVEN

Answers

it says 13 points dont lie now but ill solve it wait
Here is the answer to problem 2. I could not post all answers at once because it would not let me. Please find the answers on the other questions you have written (comment if you can’t find them)


Polygon PQRST shown below is dilated with a scale factor of 3, keeping vertex P as the center of dilation:

Answers

Answer:

Its either A or B:

The length of diagonal PS and diagonal P'S' are in the ratio 1:3.

The lengths of side PT and side R'Q' are in the ratio 1:3.

What is the formula of circumference of a
circle?

Answers

The formula is simply this: C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.

The formula is C=2πr

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