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2 years ago

Please solve; help is appreciated

Mathematics

1 answer:

erastova [34]2 years ago

8 0

Answer:

it is between 180 and 90. 90 is a right angle, and 180 is a straight line.

i think it would be around 135 or sum

Step-by-step explanation:

sorry if it didn't help. tried my best

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Chords and arcs. Can someone please help me with this and explain???20 points

anyanavicka [17]

Answer:

Step-by-step explanation:

So the line segment CD is 12.7 and half that is 6.35. I wanted this 6.35 so I can look at the right triangle there and find the angle there near the center. This will only be half the answer. So I will need to double that to find the measure of arc CD.

Anyways looking at angle near center in the right triangle we have the opposite measurement, 6.35, given and the hypotenuse measurement, 9.06, given. So we will use sine.

sin(u)=6.35/9.06

u=arcsin(6.35/9.06)

u=44.5 degrees

u represented the angle inside that right triangle near the center.

So to get angle COD we have to double that which is 89 degrees.

So the arc measure of CD is 89.

5 0

3 years ago

The treasure box in Tammy's room is in the shape of a rectangular prism. The height is 7 inches, the lenght is 12 inches and wit

Sliva [168]

Answer:

336in^3

Step-by-step explanation:

The volume of a rectangulur prism can be found by multiplying the length of the box with its height and width.

Thus, we can find the volume using the solution below:

v=l*w*h

l = 12in

h = 7in

w = 4in

12*7*4 = 336in^3

6 0

3 years ago

You have decided to wallpaper your rectangular bedroom. The dimensions are 12 feet 6 inches by 10 feet 6 inches by 8 feet 0 inch

Schach [20]

Answer:

Number of wallpaper needed = At/Aw = 355.3/75

N = 4.74 ~= 5 rolls

Step-by-step explanation:

Given;

Length of the room = 12 feet 6 inches = 12.5 ft

Breadth of the room = 10 feet 6 inches= 10.5ft

Height of the room = 8 feet

Window = 4 ft by 3ft

door = 7ft by 3 ft

Wall paper = 30 inches by 30ft = 2.5ft by 30ft

The total area of the walls of the room is;

Area = Area of the four walls - Area of the two windows and a door.

A = 2LH + 2BH - Area of windows and door

A = 2(12.5×8) + 2(10.5×8) - 2(4×3) -(7×3)

A = 323ft^2

Allowing 10% waste, total area of wallpaper needed is;

At = 323 × 1.10 = 355.3ft^2

Area of wallpaper Aw= 2.5×30 = 75ft^2

Number of wallpaper needed = At/Aw = 355.3/75

N = 4.74 ~= 5 rolls

3 0

3 years ago

Someone help me with this ASAP

ratelena [41]

Answer:

Step-by-step explanation:

Bag A contains 9(5/9) pounds of coffee

Bag B contains 9(2/3) pounds of coffee

Which bag contains less coffee?

( 2/3) is the same as (6/9)

Now that the denominators are the same, if we compare the numerators, 5 is less than 6 (5 parts of 9 is less than 6 parts of 9)

Bag A contains less coffee than bag B

9(5/9) < 9(2/3)

A) 0.73

B) 21.93

C) 7.67

5&5-----------5

10&14------------2

20&36-----------2

8 0

2 years ago

Read 2 more answers

noted psychic was tested for extrasensory perception (ESP). The psychic was presented with 400 cards face down and asked to dete

adelina 88 [10]

Answer:

A sample of 11352 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.