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Lubov Fominskaja [6]
3 years ago
8

The radius of ⨀B is 4 centimeters and the circumference of ⨀A is 20π centimeters. Find CD

Mathematics
1 answer:
malfutka [58]3 years ago
8 0

Answer:

24

Step-by-step explanation:

If we're using CD as simply numbers and not references to their designated circles we can use the difference between A and B as a pattern

The circumference is 2 multiplied by pi by the radius. This would mean that A has a radius of 10.

The difference between A and B is 2 so we can assume that C is 6 and D is 4. 4×6=24.

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Multiply. (Use photo). Enter your answer in simplest radical form.
IrinaK [193]

Answer:

72√2

Step-by-step explanation:

3√2 × 2√8 × √3 × √6

The above can be simplified as follow:

3√2 × 2√8 × √3 × √6

Recall

a√c × b√d = (a×b)√(c×d)

3√2 × 2√8 × √3 × √6 = (3×2)√(2×8×3×6)

= 6√288

Recall

288 = 144 × 2

6√288 = 6√(144 × 2)

Recall

√(a×b) = √a × √b

6√(144 × 2) = 6 × √144 × √2

= 6 × 12 × √2

= 72√2

Therefore,

3√2 × 2√8 × √3 × √6 = 72√2

7 0
3 years ago
Solve for an angle in right triangles
bezimeni [28]

Answer:

Angle B measures 68.19 degrees. Used SOH CAH TOA method.

5 0
3 years ago
X^2 + 8 = 3<br>please help! show steps.​
Alborosie

x² + 8 = 3

x² = 3 - 8

x² = -5

x = √-5 or undefined

6 0
3 years ago
Write in point-slope form an equation of the line that passes through the point (1,9) with a slope of -2
Travka [436]

Answer:

y - 9 = - 2(x - 1)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

Here m = - 2 and (a, b ) = (1, 9 ) , then

y - 9 = - 2(x - 1) ← is the equation of the line

7 0
2 years ago
At a shelter 15% of the dogs are puppies. There are 60 dogs at the shelter. How many are puppies?
kiruha [24]

Answer:- There are 9 puppies in the shelter .


Explanation:-

Total dogs in the shelter=60

At the shelter 15% of the dogs are puppies.

Number of puppies=15% of total dogs

⇒Number of puppies=\frac{15}{100}\times60........[Simplify]

⇒Number of puppies=9\ puppies

Therefore, there are 9 puppies in the shelter .



6 0
4 years ago
Read 2 more answers
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