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rosijanka [135]
3 years ago
5

Which equations are equivalent? Select all that apply. 1 + x = 3 x – 4 = -2 1 + x = -2 x + 3 = 5 x – 5 = 3

Mathematics
2 answers:
Lapatulllka [165]3 years ago
6 0
1+x=3
x=2

x-4=-2
x=2

1+x=-2
x=-3

x+3=5
x=2

x-5=3
x=8

So 1+x=3,x-4=-2,x+3=5 are equivalent
vekshin13 years ago
4 0

Answer:

1 + x = 3        or A,B,D your welcome

x – 4 = -2

x + 3 = 5

Step-by-step explanation:

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Two different numbers are selected simultaneously and at random from the set {1,2,3,4,5,6,7,8,9,10}. What is the probability tha
ehidna [41]

The probability of getting positive difference between the numbers 3 or greater between 1,2,3,4,5,6,7,8,9,10 if two numbers are selected is 28/45.

Given Numbers:{ 1,2,3,4,5,6,7,8,9,10}

We have to find the probability that the positive difference between the numbers selected is 3 or greater.

Probability is the likelihood of happening an event among all the events possible.

Total number of combinations when two numbers are selected from 10 numbers is 10 C 2=10!/2!(10-2)!

=10*9*8!/2*1(8!)

=10*9/2

=45 combinations

Combinations of numbers whose difference will be 3 or more are: (10,7),(10,6),(10,5),(10,4)(10,3)(10,2)(10,1)(9,6)(9,5)(9,4)(9,3)(9,2)(9,1)(8,5)(8,4)(8,3)(8,2)(8,1)(7,4)(7,3)(7,2)(7,1)(6,3)(6,2)(6,1)(5,2)(5,1)(4,1)

Total numbers =28

Probability=numbers/total combinations

=28/45

Hence the probability that two numbers selected gives difference of 3 or more is 28/45.

Learn more about probability at brainly.com/question/24756209

#SPJ4

6 0
2 years ago
A spinner had four lettered sections. The table shows the results of an experiment spinning the pointer.
zhenek [66]

Answer:

Q 3/10    R 4/25    S 3/50  T 12/25

Step-by-step explanation:

Q 15/50    3/10

R 8/50     4/25

S 3/50    3/50

T 24/ 50   12/25

3 0
3 years ago
Read 2 more answers
hey y’all i just need help with the shading part please help! if you can do this on a piece of paper or show how do it, i’ll giv
kicyunya [14]
You might have to ask the question again, i’m jot sure what exactly the question requires
3 0
2 years ago
Pablo generates the function f (x) = three-halves (five-halves) Superscript x minus 1 to determine the xth number in a sequence.
kondor19780726 [428]

Answer:

f(x + 1) = Five-halves f(x) (A)

Question:

The complete question as found in brainly( ID:13525864) is stated below.

Pablo generates the function f(x) = three-halves (five-halves) Superscript x minus 1 to determine the xth number in a sequence.

Which is an equivalent representation?

f(x + 1) = Five-halvesf(x)

f(x) = Five-halvesf(x + 1)

f(x + 1) = Three-halvesf(x)

f(x) = Three-halvesf(x + 1)

Step-by-step explanation:

f(x) = (3/2)(5/2)^(x-1)

Where 3/2 = three-halves and 5/2 = (five-halves)

To determine an equivalent representation, let's assign values to x to see the outcome and compare it with the options.

f(x) = (3/2)(5/2)^(x-1)

For x = 1

f(x) = (3/2)(5/2)^(1-1) = (3/2)(5/2)^(0)

f(x) =(3/2)(1) = 3/2

For x = 2

f(x) = (3/2)(5/2)^(2-1) = (3/2)(5/2)^(1)

f(x) =(3/2)(5/2)

So from the above assigned values

f(x=1) = 3/2

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

f(x + 1) = (3/2)(5/2)

Since f(x) = 3/2

f(x+1) = (3/2)(5/2) = f(x) × 5/2 = 5/2f(x)

From the options, an equivalent representation: f(x + 1) = Five-halves f(x)

(A)

5 0
3 years ago
18 is __% of 30
I am Lyosha [343]

A percent is just a fraction.
So take your two numbers and make a fraction with them ...  18/30 .

18  is  18/30  of  30 .

Now, to find the percent that's equivalent to  18/30 ,
first do the division:

                     18/30  =  0.6  .

Now, to change a decimal into percent,
move the decimal point two places that way  ==> .

                                     0.6  =  60% .

                                  18  is  60%  of  30 .
3 0
3 years ago
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