Find the area of this semi-circle with diameter, d = 58cm.
Give your answer rounded to 2 DP.

Answer:

25/18

Step-by-step explanation:

Answer: 1.6 meters tall

Step-by-step explanation:

the building is twice as tall as its shadow sooo..

0.8 x 2 = 1.6m

Answer:

9.89

Step-by-step explanation:

Find the distance between the two points rounding to the nearest tenth (if necessary) (6,-1) and (-1,6)

Step one:

given data

x1=6

y1=-1

x2=-1

y2=6

Step two:

The distance between two point is

d=√((x_2-x_1)²+(y_2-y_1)²)

substitute

d=√((-1-6)²+(6+1)²)

d =√((-7)²+(7)²)

d =√49+49

d=√98

d=9.89

Answer:

K = $0.45

1____ 2__ 4 __5___10__ 15__ 20__ 100

0.45_0.9_1.8_2.25_4.5_6.75__9___45

Step-by-step explanation:

Given the data:

Number of pepper: 1 2 4 5 10 15 20 100

Cost :

Cost of 5 pepper = 2.25

Using variation :

Cost = number of pepper * k

K = CONSTANT of proportionality

k = cost / number of pepper

k = 2.25 / 5

k = 0.45

Hence,

Cost of pepper = k * number of pepper

Number of pepper:

Cost :

1____ 2__ 4 __5___10__ 15__ 20__ 100

0.45_0.9_1.8_2.25_4.5_6.75__9___45

Answer:

The atomic number increases as you move from left to right across a period.

=====================================================

Explanation:

We'll apply the arc length formula

L = theta*r

Theta is the central angle and r is the radius. This formula only works when the angle is in radian mode. In this case, theta = 4/3 radians.

Arc length AB is part of a circle that has radius r = 8, so,

L = theta*r

L = (4/3)*8

L = 32/3

That represents the length of arc AB. This length is in cm.

-----------------------

Let x be the length of segment BD. This is also the length of AC as well due to rotational symmetry.

Arc CD is part of the larger circle that has radius r = 8+x

L = theta*r

L = (4/3)(8+x)

-----------------------

We found the following lengths so far

These four pieces form the sides of the blue region. Therefore, they form the perimeter of the blue region. Add up these four sides and set the sum equal to the given perimeter 48. Then solve for x.

(arcAB)+(segmentBD)+(arcCD)+(segment AC) = perimeter of blue region

(32/3) + (x) + (4/3)(8+x) + (x) = 48

32/3 + x + (4/3)*8+(4/3)*x + x = 48

32/3 + 2x + 32/3+(4/3)*x = 48

64/3 + 2x +(4/3)*x = 48

64/3 + 6x/3 +(4/3)*x = 48

64/3 + (10/3)*x = 48

(10/3)*x = 48-64/3

(10/3)*x = 144/3-64/3

(10/3)*x = 80/3

10x = 80

x = 80/10

x = 8

-----------------------

Since x = 8, we know that AC and BD are each 8 cm long.

This means that the larger circle has radius 8+8 = 16 cm

Now we'll apply the sector area formula. You can think of a sector as a pie slice or pizza slice. The formula shown below only works if theta is in radian mode.

Let's find the area of sector AOB. This is the smaller pie slice.

A = area of sector

A = (1/2)*theta*r^2

A = (1/2)*(4/3)*8^2

A = (1/2)*(4/3)*64

A = (1*4*64)/(2*3)

A = (2*64)/3

A = 128/3

Sector AOB is 128/3 square cm. Let's make m = 128/3 so we can use it later.

Now let's find the area of sector COD. We use the same theta value, but the radius is now 16 cm.

A = (1/2)*theta*r^2

A = (1/2)*(4/3)*16^2

A = (2/3)*256

A = 512/3

The area of sector COD is 512/3 square cm. Let n = 512/3.

-----------------------

The last thing to do is subtract the values of m and n to get the area we want.

blue area = (area of sector COD) - (area of sector AOB)

blue area = n - m

blue area = 512/3 - 128/3

blue area = (512-128)/3

blue area = 384/3

blue area = 128 square cm

Answer:

30% Markup

Step-by-step explanation:

10-7= 3 3=30%

$700/100 = 7 so they were originally bought at $7. they are sold at $10 so they are raised by $3. the percent they are raised by is 3/7, or about 43%

Answer:

e=1

Step-by-step explanation:

Answer:

e = 1

Step-by-step

i hope this helped have a great day!

Answer:

1 1/2 hours i think

Step-by-step explanation:

Answer:

(5,1)

Step-by-step explanation:

When you reflect a point across y = x, the x-coordinate and y-coordinate switch.

Answer:

(5, 1).

Step-by-step explanation:

When (x, y) is reflected  over y = x the image is (y, x).

Answer:

your answer would be 2

Step-by-step explanation:

12.80= 9.80 + 1.50x

3= 1.50x

x=2

Answer: $12.5

Step-by-step explanation:

The $100 Is 100 percent meaning that one percent is $1. Take that and multiply it by 12.5 and get $12.5

Answer:

12.5

Step-by-step explanation:

12.5 % of 100$ = 12.5

([tex]\frac{12.5}{100}[/tex]) x (100) = 12.5

Answer:

If they have 90$ to spend between the 10 people they can each 9 dollars to eat lunch with

Step-by-step explanation:

90

÷10

_____

9

Answer:

It is A.

Step-by-step explanation:

Answer:

It's 3. (1,-5)

Step-by-step explanation:

Look where the lines intersect!!

Answer:

252

Step-by-step explanation:

6x42=252

Answer:

i think its A cs its the most reasonable one

Step-by-step explanation:

sorry if its wrong

Answer:

(2) is the correct answer

Step-by-step explanation:

if you multiply the given equation by 3 you get answer (2):

3(4x - 3y) = 3(12)

12x - 9y = 36

Answer:

(2) 12x-9y=36

Step-by-step explanation:

4x-3y=12  (×3)

12x-9y=36

Answer:

15 miles per hour

Step-by-step explanation:

Since we're looking for miles per hour ([tex]\frac{miles}{hour}[/tex]) we can just replace the variables in the fraction. So, 210 divided by 14.

[tex]\frac{210}{14} \\=15 miles per hour[/tex]

Hope this helps!

Answer:

b. x > -6

Step-by-step explanation:

> [greater than], and < [less than] inequalities are not filled in because the value is not included, but is only greater or less than.

≥ [greater than or equal to], and ≤ [less than or equal to] inequalities are filled in because the value is included, and it is greater than or less than.

Given that there is an empty circle with an arrow moving in the positive direction from -6, the inequality must be a greater than, and since the value is -6, x > -6.

Answer:

Step-by-step explanation:

if the item is 430, and the sales tax is 25.80

we can find how much is 1%

430/100=4.30

25.80/4.30=6

the sales tax is 6%

Step-by-step explanation:

15(3) - 2(2 x 3 + 6)

45 - 2(12)

45 - 24

21

11(3) - 12

33 - 12

21

21 = 21

Answer:

Table D is proportional

Step-by-step explanation:

the ratio of 2:1 is true throughout each coordinate pair.

Answer:

Table D

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]x[/tex] is the total volume of milk.

100% - 60% = 40%

40% is left in the glass.

40% of [tex]x[/tex]  = 80 ml

[tex]\frac{40}{100}[/tex] of [tex]x[/tex] = 80

[tex]x = 80[/tex] × [tex]\frac{100}{40}[/tex]

[tex]x = 200[/tex] ml

The volume of milk initially in the glass was 200 ml.

A percentage is a minimum number or ratio that is measured by a fraction of 100.

Let x be the total volume of milk.

100% - 60% = 40%

40% is left in the glass.

40% of x = 80 ml

40 / 100 × x = 80

0.4 × x = 80

x = 200

Thus, The volume of milk initially in the glass was 200 ml.

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Answer:

744/40=18.6

Step-by-step explanation:

the 1 in 18.6 is in the 10ths place

the 8 in 18.6  is in the ones place

the .6 in 18.6 is in the -ones place

Answer:

justin bro

madada

Step-by-step explanation:

Answer:

C 1 5

Step-by-step explanation:

that's ur answer I hope it's correct

x + 54 + 5x = 90°

6x = 90 - 54

6x = 36

x = 36/6 = 6

value for x is 6

Answer:

$55.88

Step-by-step explanation:

Step 1: 51.50 times 8.5% = 4.3775

Step 2: Add 51.50 plus 4.3775

Step 3: 55.8775 round to the hundreth place.

Step 4: Skylar spent $55.88 after tax

Answer:

17 :) your welcome

Step-by-step explanation:

The solution is Option B.

The value of a from the equation is a = 0

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

( 1/8 )⁻³ᵃ = ( 512 )³ᵃ   be equation (1)

On simplifying the equation , we get

when a = 0

Substitute the value of a = 0 , we get

( 1/8 )⁻³ˣ⁰ = ( 512 )³ˣ⁰

On simplifying the equation , we get

( 1/8 )⁰ = ( 512 )⁰

Any number raised to the power 0 will be 1

So , ( 1/8 )⁰ = ( 512 )⁰ = 1

1 = 1

Therefore , the value of a = 0

Hence , the equation is solved

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Answer :The answer is a 2b+2+b=3b+2

Step-by-step explanation: