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trapecia [35]
3 years ago
6

Experts/ace/geniuses helpp

Mathematics
2 answers:
Tems11 [23]3 years ago
4 0
Because the .21 is repeating the fraction is:

1 and 21/99
Vinil7 [7]3 years ago
3 0
0.2121...  = 21 / 99

So your answer is  1 21/99   =   120 / 99   answer
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Assume that x is a positive acute angle.<br> Given: sin x =28/53<br> Find: sin 2x
alexdok [17]

Answer:

its sophisticated but answer is 3

Step-by-step explanation:

you have to dive deep into it and research

4 0
3 years ago
Dishwashers are on sale for 25% off the original price (d), which can be expressed with the function p(d) = 0.75d. Local taxes a
shutvik [7]

We are given the functions:

<span>P (d) = 0.75 d                                      ---> 1</span>

<span>C (P) = 1.14 P                                      ---> 2</span>

The problem asks us to find for the final price after discount and taxes applied; therefore we have to find the composite function of the two given functions 1 and 2. To solve for composite function of the final price of the dishwasher with the discount and taxes applied, all we have to do is to plug in the value of P (d) with variable d into the equation of C (P). That is:

C (P) = 1.14 (0.75 d)

C (P) = 0.855 d

or

<span>C [P (d)] = 0.855 d</span>

8 0
3 years ago
What is the ratio of 30 divided by 4:2
klasskru [66]
4:2 can represented as 4 / 2. Or also 2.

30 / 2 = 15
7 0
3 years ago
Find the equation of the exponential function represented by the table below:
amm1812

Answer:

f(x) = 2^(2x+1)

Step-by-step explanation:

2 = 2¹

8 = 2³

32 = 2⁵

128 = 2⁷

1,3,5 and 7 are odd numbers.

Individual numbers in mathematics are represented as 2x + 1.

4 0
3 years ago
Please help me I will mark brainliest! The ratio of the number of boys to the number of girls in a school is 3:4. One-third of t
Alex17521 [72]

Answer:

a) 952

b) 136

Step-by-step explanation:

<u>Ratio of b:g = 3:4, based on this we have:</u>

  • Number of boys = 3x
  • Number of girls = 4x
  • Total number of pupils = 3x+4x = 7x

<u>Number of spectacle wearers:</u>

  • 1/3*3x + 3/8*4x = x + 3/2x = 2.5x

<u>Number of those not wearing spectacles:</u>

  • 7x - 2.5x= 4.5x

<u>And this number equals to 612, then we can find the value of x:</u>

  • 4.5 x = 612
  • x= 612/4.5
  • x= 136

a) T<u>otal number of pupils:</u>

  • 7x = 7*136 = 952

b)<u> The difference in the number of boys and girls:</u>

  • 4x-3x= x = 136
7 0
3 years ago
Read 2 more answers
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