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Verdich [7]
2 years ago
10

Determine the exact and approximate circumference of the circle.

Mathematics
1 answer:
madam [21]2 years ago
3 0

Answer:

C (circumference) =2×π×r

we've got a 30-60-90 triangle

which means 9=d√3, d=5.19 exact inches

or ≈5.20 inches

d=2r, r=5.20÷2≈2.60 inches

C=2×3.14×2.60≈16.328

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Prove the theorem (AB )^T= B^T. A^T
Lisa [10]

Answer:

(AB)^T = B^T.A^T  (Proved)

Step-by-step explanation:

Given  (AB )^T= B^T. A^T;

To prove this expression, we need to apply multiplication law, power law and division law of indices respectively, as shown below.

(AB)^T = B^T.A^T\\\\Start, from \ Right \ hand \ side\\\\B^T.A^T = \frac{B^T.A^T}{A^T}.\frac{B^T.A^T}{B^T} (multiply \ through) \\\\                = \frac{A^{2T}.B^{2T}}{A^T.B^T} \\\\=\frac{(AB)^{2T}}{(AB)^T} \ \ (factor \ out \ the power)\\\\= (AB)^{2T-T}  \ (apply \ division \ law \ of \ indices; \ \frac{x^a}{x^b} = x^{a-b})\\\\= (AB)^T \ (Proved)

3 0
3 years ago
Can someone please solve this​
Svetradugi [14.3K]

Answer:

The answer is the 3rd one.

Step-by-step explanation:

3 times 3 is 9

4 times 4 is 16

13 is in between those 2 numbers

4 0
2 years ago
Read 2 more answers
Set background
saw5 [17]

Answer:

45/5 = 9

Step-by-step explanation:

use PEMDAS

8 0
2 years ago
Mrs. Sloane has $500 to buy a video game console and some video games for her family. Including tax, the video game console cost
nexus9112 [7]

Answer:

1 console and 8 games because

Step-by-step explanation:

one console cost 280 and each game costs 25 so do 500-280=220 so, u have 220 dollars left basically. 220/25=8.8 so 8 games u can buy and the tax will be $20 because 0.8 * 25 = 20 so theres ur tax and u have to answer my question

6 0
2 years ago
Simplify 4c2+6c-3c2-2c-3
NikAS [45]
Let's simplify step-by-step.<span><span><span><span><span>4<span>c2</span></span>+<span>6c</span></span>−<span>3<span>c2</span></span></span>−<span>2c</span></span>−3</span><span>=<span><span><span><span><span><span><span><span>4<span>c2</span></span>+<span>6c</span></span>+</span>−<span>3<span>c2</span></span></span>+</span>−<span>2c</span></span>+</span>−3</span></span>Combine Like Terms:<span>=<span><span><span><span><span>4<span>c2</span></span>+<span>6c</span></span>+<span>−<span>3<span>c2</span></span></span></span>+<span>−<span>2c</span></span></span>+<span>−3</span></span></span><span>=<span><span><span>(<span><span>4<span>c2</span></span>+<span>−<span>3<span>c2</span></span></span></span>)</span>+<span>(<span><span>6c</span>+<span>−<span>2c</span></span></span>)</span></span>+<span>(<span>−3</span>)</span></span></span><span>=<span><span><span>c2</span>+<span>4c</span></span>+<span>−3

</span></span></span>Answer: =c2+4c−3
6 0
2 years ago
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