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Paraphin [41]
3 years ago
11

The diameter of a circle is 4 feet. what is the circumference

Mathematics
1 answer:
castortr0y [4]3 years ago
8 0

Answer:

C=12.57 ft

Step-by-step explanation:

You might be interested in
Write an equation of the line that passes through (4, 5) and is perpendicular to the line y = -4x+6.
andrey2020 [161]
Y = -1/4x + c
5 = -1/4 x 4 + c
5 = -1 + c
c = 6
y = -1/4 + 6
8 0
2 years ago
I’m really struggling with these proofs. We just started learning them and I’m highly confused!! Please help :)
gulaghasi [49]
I'm not sure about what exactly your teacher is looking for, but the actual congruency conjecture you would use is:

(angle symbol) 1 (congruency symbol) (angle symbol) 8 - Because they are alternate exterior angles

8 0
3 years ago
2) Evaluate 9 X 364 – 9 X 125 – 9 X 39 without the use of your calculator
Brums [2.3K]

Answer:

<em>9*364 - 9*125 - 9*39 = 1,800</em>

Step-by-step explanation:

<em>Mental Calculation</em>

If we detect known patterns in the calculations, we could easily give their results without the use of calculators.

We are given the expression to evaluate:

9*364 - 9*125 - 9*39

The first thing to note is the 9 is a common factor of all terms, thus we take it out:

9*(364 - 125 - 39)

The negative numbers can be easily added

     125

+     39

------------

     164

Now our expression is much easier:

9*(364 - 164)

The subtraction of 364-164 is 200, thus the result of the operations is:

9*200. We only need to recall 9*2=18 and add two zeros to get 1,800, thus:

9*364 - 9*125 - 9*39 = 1,800

7 0
3 years ago
60 more than 9 times la number is the same as 2 less than 10 times the number what is the number?
vodomira [7]

Answer:

Step-by-step explanation:

let x represent the number

9x + 60 = 10x - 2

60 + 2 = 10x - 9x

62 = x <===

8 0
3 years ago
Sharon buys a new phone that is $144.60. It is on sale for 25% off, and she has to pay a 6.5% sales tax. How much does she pay f
-BARSIC- [3]

Answer:

$115.50

Step-by-step explanation:

<em>To find out what she paid with the discount and no tax, turn the percentage into a decimal. To do that, divide it by 100.</em>

25 / 100= .25

Then, multiply that by the total.

.25 * 144.6= 36.15

<em>Subtract that by the total.</em>

144.6 - 36.15=108.45

<em>Now, we need to find the sales tax. Again, we know to divide the percentage by 100 to get the decimal. In that case, 6.5% is now .065.</em>

Multiply that by the discounted price.

.65 * 108.45= 7.05

<em>Add that to the price.</em>

108.45 + 7.05 =115.50

$115.5 would be the total price.

<em>:)</em>

8 0
3 years ago
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