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iris [78.8K]
3 years ago
7

Which expression is an irrational number?A. 1/9 B.0.4 C. √15 D. √36

Mathematics
2 answers:
frutty [35]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Daniel [21]3 years ago
3 0
C is irrational because there is no definite square root for 15 whereas the square root of 36=6
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Which expressions are equivalent to -3x+6v+7x14?
Greeley [361]

Between the 4 and the 7 is it a multiplication or an X?

If the multiplication sign, this is the solution

- 3x + 6v + 7 \times 14 \\  =    6v  - 3x + 98

8 0
2 years ago
My mom packed my lunch three of the past five days, so the probability of my mom packing my lunch is 3/5. Is this Experimental o
Crank

Answer:

definitely theoretical.  Seems how mom packed the lunch 3/5 times a week, the pattern will follow

Step-by-step explanation:

4 0
2 years ago
Write the product as a sum: 14cos(39x)sin(19x)
charle [14.2K]

Recall that

sin(<em>a</em> + <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) + cos(<em>a</em>) sin(<em>b</em>)

sin(<em>a</em> - <em>b</em>) = sin(<em>a</em>) cos(<em>b</em>) - cos(<em>a</em>) sin(<em>b</em>)

Adding these together gives

sin(<em>a</em> + <em>b</em>) + sin(<em>a</em> - <em>b</em>) = 2 sin(<em>a</em>) cos(<em>b</em>)

To get 14 cos(39<em>x</em>) sin(19<em>x</em>) on the right side, multiply both sides by 7 and replace <em>a</em> = 19<em>x</em> and <em>b</em> = 39<em>x</em> :

7 (sin(19<em>x</em> + 39<em>x</em>) + sin(19<em>x</em> - 39<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) + sin(-20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

7 (sin(58<em>x</em>) - sin(20<em>x</em>)) = 14 cos(39<em>x</em>) sin(19<em>x</em>)

4 0
2 years ago
The granola summer buys used to cost $6.00 per pound but it has been marked up %15 A. How much did it cost summer to buy 2.6 pou
Maksim231197 [3]
The granola summer buys used to cost $6.00 per pound but it has been marked up %15 Question: How much did it cost summer to buy 2.6 pounds of granola at the old price.=> previous price of granola = 6.00 dollars per pound=> marked up 15% = 15% /100% = .15Solve:=> 6 * .15 = .9=> 6 + .9 = 6.9 dollars per poundNow, you want to buy 2.6 pounds=> 6.9 * 2.6 = 17.94 dollars <span>
</span>
3 0
2 years ago
What is the center of the data in the dot plot?
Vadim26 [7]
The answer would be 3
4 0
2 years ago
Read 2 more answers
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