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viktelen [127]
3 years ago
12

I am having troubles, would love the help

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

AC= 12.6

Step-by-step explanation:

The length of AX is half the length of AC. 6.3x2= 12x6

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(a)
Vika [28.1K]

Answer:

(a) Percentage of girls = 55\frac{5}{7}

(b) Percentage of boys = 44\frac{2}{7}

Step-by-step explanation:

To find percentage, we multiply the fraction out of the total by 100%.

Percentage of girls = \frac{780}{1400} × 100%

                                = 55\frac{5}{7}

Percentage of boys = \frac{1400-780}{1400} × 100%

                                 = 44\frac{2}{7}

3 0
2 years ago
Read 2 more answers
Help I'm stuck on this problem
ollegr [7]
Easy! 

All you have to do is make a number lower or higher according to the symbols and make it unique.

For example, on letter B, it says ____ - ____ = <1

So what you want to do is make it 0 - 0 = <1
7 0
3 years ago
Read 2 more answers
1. A sine function has the following key features
strojnjashka [21]

Answer:

1) y= 2sin(\frac{1}{2}x) + 2

2) y= 3sin(\frac{\pi}{2}x)-1

3) y= 2sin(2x) -2

Step-by-step explanation:

General form of sin function is

y= Asin(Bx) + C

Where A is Amplitude

B is \frac{2\pi}{\text{Period}}

C is Mid line

1) Given : A sine function has the following key features  

Frequency = \frac{1}{4\pi}

Period is P=\frac{1}{f}=\frac{1}{\frac{1}{4\pi}}=4\pi

Amplitude= 2

Mid line y= 2

Y intercept (0,2)  

This function is NOT a reflection of its parent function of the x-axis

Solution : We put the value in the general form of sin function

A= 2 ,  B=\frac{2\pi}{4\pi}=\frac{1}{2} , C=2

y= Asin(Bx) + C

y= 2sin(\frac{1}{2}x) + 2

2) Given : A sine function has the following key features  

Period = 4

Amplitude = 3

Mid line y = -1

Y intercept (0,-1)

Solution : We put the value in the general form of sin function

A= 3 ,  B=\frac{2\pi}{4}=\frac{\pi}{2} , C=-1

y= Asin(Bx) + C

y= 3sin(\frac{\pi}{2}x)-1

3) Given : A sine function has the following key features  

Period = \pi

Amplitude = 2

Mid line y = -12

Y intercept (0,-2)

Solution : We put the value in the general form of sin function

A= 2 ,  B=\frac{2\pi}{\pi}=2 , C=-2

y= Asin(Bx) + C

y= 2sin(2x) -2

5 0
3 years ago
Which equation illustrates the additive inverse property?Select one of the options below as your answer:
belka [17]
"d + (-d) = 0" is the one equation among the following choices given in the question that <span>illustrates the additive inverse property. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has actually come to your desired help.</span>
7 0
3 years ago
Need help with 5 and 6! Please!
SSSSS [86.1K]
5. 2400. take the 4000 total and divide that by 0.6 or 60%
6. illegible
7. this would be the average of all 3 total months not just x day in y month <span />
3 0
3 years ago
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