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3 years ago

Solve the value for r (8r-6)° (5r+5)° Plz help meeeee

Mathematics

1 answer:

Sever21 [200]3 years ago

3 0

The answer is 1 for both

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12 Which numbers are irrational? Choose all that apply.

alex41 [277]

Option a and option d

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3 years ago

I took notes and went back through the lesson but I can't get it. Help, please!!!

aliina [53]

Answer:

Step-by-step explanation:

▪Picture 1. x = 28

$\frac{x}{42} = \frac{10 + x}{57} \\ 42(10 + x) = 57x \\ 420 + 42x = 57x \\ \frac{ \: \: \: \: \: \: \: \: \: \: \: - 42x = - 42x}{ \frac{420}{15} = \frac{15x}{15} } \\ \\ 28 = x$

▪Picture 2. I don't know what in trying to solve.

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3 years ago

At the Hardey Fitness Center, the management did a survey of their membership. The average age of the female members was 40 year

faust18 [17]

Answer:

5 / 8

Step-by-step explanation:

Given :

Average age of male = 25

Average age of female = 40

Average age of entire membership = 30

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25 : 40

5 : 8

5/8

8 0

3 years ago

Pn=1/3pn-1 and p4=108 , then p6= ? please show steps

Natali5045456 [20]

$p_n=\dfrac13p_{n-1}$
$\implies p_n=\dfrac13\left(\dfrac13p_{n-2}\right)=\dfrac1{3^2}p_{n-2}$
$\implies p_n=\dfrac13\left(\dfrac13p_{n-3}\right)=\dfrac1{3^3}p_{n-3}$

and so on, up to

$p_n=\dfrac1{3^{n-4}}p_4=\dfrac{108}{3^{n-4}}$

which means

$p_6=\dfrac{108}{3^{6-4}}=\dfrac{108}9=12$

6 0

3 years ago

the diameter of a circle is 12yd. find the exact area and circumference of the circle. write your answers in terms of pie

Scorpion4ik [409]

So,

The area of a circle is $A = \pi *radius^{2} \\and\\Radius = Diameter \div 2\\\\So\\A = \pi * 6^2\\\\A = 36\pi$

For Circumfrence

$C = \pi * diameter\\C = 12\pi$

3 0

3 years ago