2 years ago

AB= 6 cm, AC = 12 cm Calculate the length of CD. Give your answer to 3 significant figures.

Mathematics

1 answer:

djverab [1.8K]2 years ago

4 0

CB is 10.392...

(root 12^2 - 6^2 = 6root3)

CB is now the opposite

CD = hypotenuse

Hypotenuse + opposite = SOH - sin

Sin55 = o/h

sin55 = 6root3/h

x h, then ÷ sin55

H = 6root3/sin55

H = 12.686...

To 3 s.f CD is 12.7cm

(root = square root)

Hope this helps!

You might be interested in

Use the unit price to find the total price.8 gallons at $1.94 per gallon

Alika [10]

1.94 / 8 = 0.2425 rounds to 0.24....so unit price is 24 cents per gallon

5 0

3 years ago

Can someone help me I really need it

Dennis_Churaev [7]

Answer:

The 3 lines are parallel.

Step-by-step explanation:

To draw the lines with the slope of 1/3 choose any point and mark it, then go up 1 square and right 3 squares and mark that point. Draw a line connecting those 2 points. Now choose another point and do the same thing. Then once more. Lines with the same slope are parallel.

Hope this helped! Please mark Brainliest.

8 0

3 years ago

Katherine goes to the deli to buy some turkey. Turkey cost $5.28 per pound. Katherine needs to buy 3 1/4 pounds of turkey. How m

Leto [7]

<u /><u />5.28 dollars per pound multiplied by 3.25 pounds is a total of 3.25*5.28=$17.16.

7 0

3 years ago

Suppose account numbers for an internet service provider consist of alpha-numeric characters. The first character is a digit (0

Amiraneli [1.4K]

Answer:

20,442,240 account numbers are possible.

Step-by-step explanation:

The first character has 10 possible values.

The next 2 has 26 * 26 = 676 possible combinations.

The last 4 has 9*8*7*6 = 3024 possible combinations.

So the answer is 10 * 676 * 3024

= 20,442,240.

6 0

2 years ago

The numerator and denominator of a fraction are in the ratio of 3 to 5. If the numerator and denominator are both increased by 2

butalik [34]

Answer:

The correct answer is A) 5n = 3d and 3n + 6 = 2d + 4

Step-by-step explanation:

hope this is right...

6 0

3 years ago

AB= 6 cm, AC = 12 cm Calculate the length of CD. Give your answer to 3 significant figures. ​

AB= 6 cm, AC = 12 cm Calculate the length of CD. Give your answer to 3 significant figures.