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tino4ka555 [31]
3 years ago
9

If sin(2x - 1) = cos(11), what is x?

Mathematics
1 answer:
Sever21 [200]3 years ago
7 0

Answer:

x = 40 + 180 n , 51 + 180 n , for any integer  n

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Write 0.8 as a fraction.
Scrat [10]
0.8=0.8/1=8/10=4/5
not one of them
but,

2/9=0.2222222222
4/9=0.444444444444
7/9=0.7777777777
8/9=0.88888888888

I  think you meant 0.8 repeating so

answer is D
5 0
3 years ago
In a certain county, the number of charter schools is 6 less than twice the number of atternative schools. We know that there ar
posledela
C = 2A - 6
C = 52

52 = 2A - 6
52 + 6 = 2A
58 = 2A
58/2 = A
29 = A <==alternative schools
7 0
4 years ago
An actor invests some money at 8​% simple​ interest, and ​$21 comma 000 more than four times the amount at 10​% simple interest.
Dennis_Churaev [7]

Answer:

First investment = $98000

Second = $413,000

Step-by-step explanation:

Given the following :

Investment 1:

Let first investment = f

Rate = 8% = 0.08

Investment 2:

$21,000 more than 4 times of investment 1:

4f + 21000

Rate = 10% = 0.1

Total annual interest earned from both :

$49,140

Interest on investment 1 + interest on investment 2 = $49,140

To solve:

Simple Interest = principal * rate * time

Time = 1 year

Total interest = (f * 0.08 * 1) + ((4f + 21000) * 0.1 * 1)

49140 = 0.08f + 0.4f + 2100

0.48f = 47040

f = 47040 / 0.48

f = 98000 = first investment

Second investment :

4f + 21000

= 4(98000) + 21000

= $413,000

3 0
4 years ago
Mrs.Canales class is selling frozen pizzas to earn money for a field trip.For every pizza sold, the class makes $5.35.They have
Rufina [12.5K]
The amount of money that they still have to earn in order to achieve their goal is the difference between $750 (goal) and $182.90 (current earnings) which is equal to $567.1. To determine the number of pizzas that still have to be sold, we divide this amount by the unit price of pizza. 
                               n = $567.1 / $5.35 = 106
Therefore, Mrs. Canales' class should be able to sell another 106 pizzas. 
8 0
4 years ago
9)<br> 10)<br> 22x - 2<br> 8x + 2<br> A) 5<br> B) 6<br> D 2<br> C) 8<br> A 5<br> C) -10
Varvara68 [4.7K]

Answer:

I don't know

Step-by-step explanation:

could you screenshot your question or reword it. I don't know what you're asking. Sorry.

4 0
3 years ago
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