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3 years ago

PLEASE HELP THIS IS DUE IN 5 MINUTES PLEASE

Mathematics

2 answers:

Fed [463]3 years ago

7 0

Answer: 8/5

Check:

8/5 = 1.6

1.6 x 5 = 8

FromTheMoon [43]3 years ago

6 0

Answer:

A 5/8

Step-by-step explanation:

the ratio is 5/8 and uh i need more characters

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Y - 4x = -2<br> 2y - 8x = -4

Fudgin [204]

Answer:

Using substitution method

First make y in equation 1 the subject of formula

Y=4x-2

Sub in equation 2

2(4x-2)-8x=4

8x-4-8=4

8x=4+12

8x=16

X=2

Sub in any of equation to get y

Step-by-step explanation:

Y =4(2)-2=6

3 0

3 years ago

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Which formula decribe the following geometric equence? Remember that n repreent the term number. 2, 6, 18, 54,. An = 3 · 2 n - 1

Goryan [66]

For the given geometric progression, the nth term of the given GP is $A_n=2.3^{n-1}$ .

Option (C) is correct.

What is the Geometric Progression?

Geometric Progression (GP) is a type of sequence in mathematics in which each succeeding term is produced by multiplying each preceding term by a fixed number known as a common ratio. This progression is also known as a pattern-following geometric sequence of numbers.

The given sequence is 2, 6, 18, 54

here the first term(a) = 2 and the common ratio(r) = 6/2 =3

Then by using the formula for the nth term of a GP, we get

$A_n=ar^{n-1}\\\\A_n=2.3^{n-1}$

Hence the nth term of the given GP is $A_n=2.3^{n-1}$ .

To learn more about Geometric progression, visit:

brainly.com/question/12006112

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1 year ago

Kevin received 20 text messages on his phone and 12 were from his mother. What

GalinKa [24]

40% were NOT from his mother, I think.

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If Johnny has 3 apples, and he eats 2, how many does he have left?

MrRissso [65]

There is 1 apple left

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Verify sinx/1-cosx + sinx/1+cosx = 2cscx

Andru [333]

$\displaystyle \\ 
 \frac{\sin x}{1-\cos x} + \frac{\sin x}{1+\cos x} = \\ \\ 
 =\frac{\sin x(1+\cos x)}{(1-\cos x)(1+\cos x)} + \frac{\sin x(1-\cos x)}{(1+\cos x)(1-\cos x)} = \\ \\ 
 =\frac{\sin x+\sin x\cos x}{1-\cos^2x} + \frac{\sin x-\sin x\cos x}{1-\cos^2x} = \\ \\ 
 =\frac{\sin x+\sin x\cos x + \sin x-\sin x\cos x}{1-\cos^2x} = \\ \\ 
=\frac{2\sin x }{\sin^2x} = \frac{2 }{\sin x} =2 \times \frac{1 }{\sin x} = 2 \times \csc x = \boxed{2\csc x }$

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3 years ago