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2 years ago

3

The sets M and J are given below.

1 answer:

3241004551 [841]2 years ago

6 0

Intersection: { }

The intersection is the set of all elements in both the sets.

Union: {a, b, d, f, g, h}

The union is the set of all elements in at least one of the sets.

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Which expression is equivalent to (x + y)(x – y)?

Goshia [24]

X^2-y^2
you would get x^2+xy-xy+y^2
the xy and -xy cancel

5 0

3 years ago

Read 2 more answers

There are 25 questions on your math test. You have completed 5 questions so far. What fraction of the total questions do you sti

maksim [4K]

Answer:

$\frac{4}{5}$

Step-by-step explanation:

If you have completed $5$ questions, you still have $25-5=20$ more questions to answer. We need to find what fraction $20$ is of $25$ , if that makes sense. A fraction is simply a part over a whole. In this case, the part is $20$ and the whole is $25$ . Therefore, the fraction we are looking for is $\frac{20}{25}$ , which simplifies to $\frac{4}{5}$ . Hope this helps!

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3 years ago

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Determine the recursive function that defines the sequence.

Strike441 [17]

<h2>Answer:</h2>

Option: C is the correct answer.

C. $f(1)=4\\\\f(n)=5\cdot f(n-1)\ ;\ n\geq 2$

<h2>Step-by-step explanation:</h2>

Recursive Formula--

It is the formula which is used to represent the nth term of a sequence in terms of (n-1)th term of the sequence.

Here we are given a table of values by:

n f(n)

1 4

2 20

3 100

i.e. when n=1 we have:

$f(1)=4$

Also,

$f(2)=20\\\\i.e.\\\\f(2)=5\cdot 4\\\\i.e.\\\\f(2)=5\cdot f(1)$

Also,

$f(3)=100\\\\i.e.\\\\f(3)=5\cdot 20\\\\i.e.\\\\f(3)=5\cdot f(2)$

Hence, the recursive formula is:

$f(n)=5\cdot f(n-1)\ for\ n\geq 2$

5 0

4 years ago

1/2x=8 as a mixed number show work

olga nikolaevna [1]

Answer:

16

Step-by-step explanation:

1/2 x =8

Multiply both sides by 2

x = 8 times 2

x = 16

5 0

3 years ago

Read 2 more answers

There are 40 students in grade 7. 15 are boys and the others are girls a student is selected for a field trip in random. Find th

Bezzdna [24]

Answer:

There's a 37.5 percent chance that a boy will be selected.

Step-by-step explanation:

15/40=?/100

100 times 15 is 1500

1500 divided by 40 is 37.5

7 0

4 years ago