HELP ASAP

The perimeter of a semicircle is 27.756 inches. What is the semicircle's radius?

Answers

Answer 1

Answer:

r = 5.4

Step-by-step explanation:

Formula:

P = πr + 2r

27.756 = πr + 2r

27.756 = 3.14r + 2r

27.756 = 5.14r

r = 5.4


Related Questions

Prism or pyramid pleaseeeeeeeee helpp

Answers

Answer:

Prism

Step-by-step explanation:

what is the surface area of this square pyramid with a base length of 4 centimeters and slant height of 9 centimeters? HELP PLEASE!!!!

Answers

Answer:

The surface area of a square pyramid = 1/2 * slant height * base perimeter + area of base

The slant height is 8 cm

The base perimeter is 4 * 5 cm = 20 cm

The area of the base is 5 cm * 5 cm = 25 cm**2

Plugging into the formula the area =

1/2 * 8 cm * 20 cm + 25 cm**2 =

4 cm * 20 cm + 25 cm**2 =

80 cm**2 + 25 cm**2 = 105 cm**2

The Surface Area of Pyramid is 105 cm².

What is Surface Area of Pyramid?

If “P” is the base perimeter, “l” is the slant height, and “B” is the base area, then the total surface area of the regular pyramid formula is given by (½)Pl + B Square units.

Given:

slant height, l= 8 cm

So, the base Perimeter = 4 x 5

                                      = 20 cm

Now, area of the base = 5 cm x 5 cm

                                     = 25 cm²

Then,  surface area of a square pyramid

= 1/2 x slant height x base perimeter + area of base

= 1/2 x 8 x 20 + 25

= 80 + 25

= 105 cm²

Hence, the Surface Area is 105 cm².

Learn more about Surface area of Pyramid here:

https://brainly.com/question/1503383

#SPJ2

a college employs 15 stewards. what is the average monthly wage of the stewards if the college pays 226.20 naira in wages each months​

Answers

What are the options

If we use 3 eggs in a 15 cm mold-
How many eggs do we use in a 25 cm mold?​

Answers

you would use 5 eggs I think


[tex] \binom{ \sin( \alpha) + \sin( 2alpha ) }{1 + \cos( \alpha ) + \cos(2 \alpha ) } = \tan( \alpha ) [/tex]

Answers

I see you use the TeX command "\binom" for binomial coefficient, but I think you meant to use "\frac" to write a fraction, namely,

[tex]\dfrac{\sin(\alpha)+\sin(2\alpha)}{1+\cos(\alpha)+\cos(2\alpha)}=\tan(\alpha)[/tex]

and I assume you're supposed to establish an identity.

Recall the double angle identities for cos and sin :

cos(2α) = cos²(α) - sin²(α) = 2 cos²(α) - 1

sin(2α) = 2 sin(α) cos(α)

Now expand the left side as

(sin(α) + sin(2α)) / (1 + cos(α) + cos(2α)) = (sin(α) + 2 sin(α) cos(α)) / (1 + cos(α) + 2 cos²(α) - 1)

Factor sin(α) from the numerator, and after canceling the 1s in the denominator and factor cos(α) :

… = [sin(α) (1 + 2 cos(α))] / [cos(α) (1 + 2 cos(α))]

Cancel the factors of 1 + 2 cos(α) :

… = sin(α) / cos(α)

which is equivalent to

… = tan(α)

by definition of tan.

Draw four more rectangles with areas equal to 24cm².​

Answers

Area of rectangle is equal to: length times width. A=l•w
If A=24cm^2
24cm^2=1cm•24cm
24cm^2=2cm•12cm
24cm^2=3cm•8cm
24cm^2=4cm•6cm
Good luck


1. Observa el siguiente conjunto de enteros (-1,0, 1)

A. ¿Cuál de las propiedades de los números reales son verdaderas
para el conjunto?

Answers

Answer:

no hablo espanol papas fritas papas fritas papas fritas papas fritas papas fritas papas fritas papas fritas papas fritas

Step-by-step explanation:

12 points and brainliest pls and thank you ! (no unknown links or ill report u and ur whole acc)

Answers

Answer:

13

cuz one of those square part = to 90 degrease

so 77 degrease is already shown so minus 90-77

and u get 14

Answer:

x = 13°

Step-by-step explanation:

Angles 77° and BGE are vertical and thus equal angles.  Angle x and BGE are complementary angles; thus, x + 77° = 90°.  Solving this for x, we get:

x = 13°

what is this answer h – 6.5 = 15

Answers

Answer:

h=43/2 = 21 1/2 = 21.5

Step-by-step explanation:

h−6.5=15

Add 6.5 to both sides.

h=15+6.5

Add 15 and 6.5 to get 21.5.

h=21.5

What is the solution to the system of equations
Y=x+6
Y= -0.5x+3

Answers

Answer:

[tex]y = 4 \\ x = - 2[/tex]

Which pairs of numbers are opposites? Check all that

apply.

0-6 and -6

0-2 and 2

4 and 4

O 8 and -8

10 and 0

Ur welcome

Answers

Negative is the opposite of positive, so the only true opposites are. -2,2 8,-8

Answer:

–2 and 2      8 and –8                                                                                                         Which pairs of numbers are opposites? Check all that apply.

–6 and –6

–2 and 2

4 and 4

8 and –8

10 and 0

Step-by-step explanation:

Please help worth 10 points

Answers

Answer:

JK, NK

Step-by-step explanation:

both start at a point and extend through an arrow

PLEASE HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

81 sq.metre

Step-by-step explanation:

So this shape is made up two geometrical shapes - Triangle and a Rectangle.

So we have to find the area of Rectangle and Triangle

Area of Rectangle =

[tex]l \times b[/tex]

If we apply this to the given diagram we get,

[tex]10 \times 6 \\ = 60[/tex]

Now we have to find the area of Triangle

Area of Triangle =

[tex] \frac{1}{2} \times b \times h[/tex]

If we apply this to the given diagram we get,

[tex] \frac{1}{2} \times 7 \times 6 \\ = \frac{1}{2} \times 42 \\ = 21[/tex]

So the total area of the given figure is 60 + 21 which is equal to 81 sq.metre

Answer:

[tex]81m^{2}[/tex]

Step-by-step explanation:

Area of rectangle =Length × Width

so Area of rectangle = 10 × 6=60[tex]m^{2}[/tex]

The base of triangle equals to the width of rectangle so,

Area of triangle =[tex]\frac{1}{2}[/tex]×7×6=21[tex]m^{2}[/tex]

Then add the two areas together so , 60+21=81[tex]m^{2}[/tex]

Because it's two shapes

2. Define any variables and tell the slope and y-intercept of the situation. Then, write an equation to represent
the situation.

An electrician charges $75 for a service call and $25 for each hour they are on the job. If the electrician spends x hours at a house, what will the total charge, C(x) be?

Answers

Answer:

x=number of hours

c(x)= 25x+75

y-intercept= (0, 75)

Equation= y=25x+75

Slope= 25

Step-by-step explanation:

75 would be the y intercept(constant) because that's the initial charge for a call.

25 would be the coefficient for x because the hour you spend on the call varies.

The slope is how steep the line is, in this case it is 25.

x is the number of hours because that is the time that varies.

Need help 15 points pls help me

Answers

5 1/2 feet is the base of window.

Answer:

area of parllelogram =base×height

25 2/3=base×4 2/3

77/3=base×14/3

77/3×3/14=base

base=77/14=11/2=5 1/2feet

determine the intercepts of the line
x intercepts (__ , __)
y intercepts (__ , __)​

Answers

I’m gonna try to help you. So in the graph the line on the x intercept is between 100 and 150. Meaning it is at 125. The Y intercept line is marked at 275.

Therefore the answer should be
x-intercept: (125, 0)
y-intercept: (0, 275)

can someone help having trouble solving this question

Answers

Answer:

if you pit the shape in a straight line it would be 180 degrees now take 180 take 130 and 100 and subtract those add that to the other 30 then take 180 divided by 60

Answer:

x = 50°

Step-by-step explanation:

sum of exterior angles is always equal to 360°

so, we can add all the given numbers and set them equal to 360° to find x:

130° + 30° + 100° + x° + x° = 360°

260° + 2x = 360°

2x = 100°

x = 50°

A wooden wagon wheel has 12 equally spaced spokes radiating from the central hub.

Answers

Answer: 12 INCHES

Step-by-step explanation:


Please help me it’s a Friday and my cousin birthday tomorrow and if I don’t finish I can’t go. (NO LINKS) need explanation. (EXPLAIN) and no lying.

Answers

Answer:

D. 0-69

Step-by-step explanation:

I'm not quite 100% sure but I believe it is D. This is because the spread means the range, and the range is the lowest value to between the highest value so it makes sense that the spread is 0-69

apologize of its wrong

How to find the volume of the cube?

Answers

Answer:

its 125

Step-by-step explanation:

5x5x5

Answer:

Volume = [tex]length * width * height.[/tex]

Step-by-step explanation:

[tex]V=a^{3}[/tex]  that is the formula

So the volume of this cube is 125 cm

i will give a crown if you are the first one to answer and if you get it right and if you just get it right then i will i give you a full star rating and a thanks

Answers

I think the answer is 7+56x
The simplified way would by 7•(8x+1)

Need Help Geometry Question I will give brainliest

Answers

Answer:

if u just scan that with photo math it will give u answer and explanation :) hope that helped i am sorry i don't know the anwswer

Step-by-step explanation:

Thomas lives more than 0.55 km and less than 0.75 km from his school.
Thomas lives from his school?
A. 0.06 km
B 0.50 km
c. 0.60 km
D. 1.30 km
What is the difference between 75 and 55

Answers

Answer:

C 0.60km

I hope this answer helps if you have any questions just ask

ILL GIVE YOU BRAINLIEST PLEASE ANSWER

Answers

Answer:

376.9 ft²

Step-by-step explanation:

There you go the right answer

PLEASE HELP I WILL MARK YOU BRAINIEST!!

Answers

Answer:
r = 9

The error happened when -3 was multiplied by -r in the first step, negative and negative makes a positive so it should have been
-18 + 3r= 9 in the second step.
Hope this helps :)

Many utility companies promote energy conservation by offering discount rates to consumers who keep their energy usage below certain established subsidy standards. A recent EPA report notes that 70% of the island residents of Puerto Rico hae reduced their electricity usage sufficiently to qualify for discounted rates. If five residential subscribers are randomly selected from San Juan, Puerto Rico, find the probability of each of the following events.a. All five qualify for the favorable rateb. At least four qualify for the favorable rates

Answers

Answer:

a. 0.1681 = 16.81% probability that all five qualify for the favorable rate.

b. 0.5283 = 52.83% probability that at least four qualify for the favorable rates

Step-by-step explanation:

For each Puerto Rico resident, there are only two possible outcomes. Either they qualify for discounted rates, or they do not. The probability of a person in the sample qualifying for discounted rates is independent of any other person in the sample. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

70% of the island residents of Puerto Rico have reduced their electricity usage sufficiently to qualify for discounted rates.

This means that [tex]p = 0.7[/tex]

Five residential subscribers are randomly selected from San Juan, Puerto Rico

This means that [tex]n = 5[/tex]

a. All five qualify for the favorable rate

This is P(X = 5). So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 5) = C_{5,5}.(0.7)^{5}.(0.3)^{0} = 0.1681[/tex]

0.1681 = 16.81% probability that all five qualify for the favorable rate.

b. At least four qualify for the favorable rates

This is

[tex]P(X \geq 4) = P(X = 4) + P(X = 5)[/tex]

So

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 4) = C_{5,4}.(0.7)^{4}.(0.3)^{1} = 0.3602[/tex]

[tex]P(X = 5) = C_{5,5}.(0.7)^{5}.(0.3)^{0} = 0.1681[/tex]

[tex]P(X \geq 4) = P(X = 4) + P(X = 5) = 0.3602 + 0.1681 = 0.5283[/tex]

0.5283 = 52.83% probability that at least four qualify for the favorable rates

3.5.1 Why do banks charge transaction fees?​

Answers

To make a profit and pay operating expenses, banks typically charge for the services they provide. When a bank lends you money, it charges interest on the loan. Even fee-free checking and savings accounts have some fees.
i miss brown hair color all the way better and internet is a little more expensive for me to do that one ☝️ w.

PLS HELP AND ANSWER QUICK PLZ

Answers

Answer:

∠CDE = 76

Explanation:

1) Find ∠CED

- 180 - 116 = 64

2) Find y

- 4y + 7y + 6 + 64 = 180

- 11y + 70 = 180

- 11y = 110

- y = 10

3) Substitute 10 for y

- 7y + 6

- 7(10) + 6

- 70 + 6

= 76

Helps, is it 64 111 or 90?​

Answers

Answer:

111

Step-by-step explanation:

2 ( x - 10) + 1 = 60

Answers

Answer:

x = 39.5

Step-by-step explanation:

2(x-10) = 59

x - 10 = 29.5

x = 39.5

Answer:

x=39.5 or 79/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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