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Step2247 [10]
3 years ago
15

I don’t understand this

Mathematics
2 answers:
PIT_PIT [208]3 years ago
5 0

Answer:

24.5

Step-by-step explanation:

7²/x²-2

7²/2²-2

49/4-2

49/2

24.5

fomenos3 years ago
3 0
Replace x with 3 in the equation to get:
7^2/ 3^2 -2

7^2 changes to 49 and 3^2 changes to 9:
49/9-2

Simplify 9-2 to 7:
49/7

Divide 49 by 7:
7










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Tell whether the sequence 1/3, 0, 1, -2 ... is arithmetic, geometric, or neither. Find the next three terms of the sequence.
max2010maxim [7]

Answer:

A. neither; 7, -20, 61

Step-by-step explanation:

The sequence 1/3, 0, 1, -2 ...

The difference between the terms are; -1/3, 1, -3......

Looking the difference between consecutive terms in the sequence, we can predict the next differences between the following terms, as the differences form a geometric sequence;

Therefore; -1/3, 1, -3, 9, -27, 81

Thus; the sequence will be;

1/3, 0, 1, -2 , (-2+9), (-2+9+-27), (-2+9+-27+81)

1/3, 0, 1, -2, 7, -20, 61

Hence the next three terms are; 7, -20, 61

6 0
3 years ago
If angle9 = 7y° and angle10 = 3y°, what is the measure of angle16 such that x is parallel to z?
Semenov [28]
\angle 9 = \angle 16 = 7y
7 0
3 years ago
Read 2 more answers
Help me with this please! :D
Nady [450]

Answer:

#1=2

#2= 14

#3= 26

#4= 32

Step-by-step explanation:

y=6x-16

Lets use the first one as an example: since x is our variable we can plug in 3 into the equation to make y=(6x3)-16. 6x3=18, so y=18-16 which is 2. You can plug in any other number to find your answer as long as you follow the pattern in the equation.

8 0
3 years ago
Read 2 more answers
Alexander found the means-to-MAD ratio of two data sets to be 0.8.
Andrew [12]

Answer:

"They are similar"

Step-by-step explanation:

The means-to-MAD ratio tells how similar two distributions are to each other.

If the ratio is

< 1, this means they are similar

between 1 and 2.5, they are somewhat similar

> 2.5, this means they are different

<em>We see the ratio given is 0.8, which is  < 1, so the distributions are similar.</em>

<em>first answer choice is right.</em>

7 0
3 years ago
Whats the solution of y=2x-31
RideAnS [48]
When there are two variables ('x' and 'y'), then you need two equations
in order to find a solution.

If you only have one equation with 2 variables, then there are an infinite
number of solutions. 

Here are a few solutions to this particular equation:

x =    0,   y =  -31
x =    1,   y =  -29
x =    2,   y = -27
x =    3,   y = -25
x =  15,   y =   -1
x =  20,   y =    9
x =  30,   y =   29
x =  40,   y =   49
x =  50,   y =   69
x = 100,  y = 169

Now that you have these 10 solutions,
there are only an infinite number of others.
7 0
3 years ago
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