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3 years ago

How do I solve this help plz

Mathematics

2 answers:

Yakvenalex [24]3 years ago

4 0

If you replace z with 3 it will still be -3/4 so 3 is your answer

Bumek [7]3 years ago

4 0

The answer would be 3. This is because since the denominators and sign are the same, the numerator also must be the same, too. Therefore, z can be replaced with 3. Hope this helped!

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2. Find the common difference and the recursive formula. a. 22, 19, 16, 13, …

Musya8 [376]

Answer:

The common difference d is d = -3

The recursive formula is: $\mathbf{a_n=a_{n-1}-3}$

Step-by-step explanation:

We need to find the common difference and the recursive formula.

a. 22, 19, 16, 13, …

First we will find common difference

The formula of arithmetic sequence is: $a_n=a_1+(n-1)d$

where a_n is nth term, a_1 is 1st term and d is the difference

Looking at the sequence we get: a_1=22, a_2=19

Using these values we can find d, the common difference

$a_n=a_1+(n-1)d\\put\:n=2, a_2=19, a_1=22\\19=22+(2-1)d\\19=22+d\\d=19-22\\d=-3$

So, the common difference d is d = -3

Now, we will find the recursive formula:

The recursive formula is of type: $a_n=a_{n-1}+d$

We have found common difference d = -3

So, the recursive formula will be:

$a_n=a_{n-1}+d\\a_n=a_{n-1}+(-3)\\a_n=a_{n-1}-3$

The recursive formula is: $\mathbf{a_n=a_{n-1}-3}$

6 0

3 years ago

Is 14/950 more or less than 1/2 and why!

qwelly [4]

Well because 14 is nowhere near half of 950 (which is 475), 1/2 is bigger. I hope this helped.

3 0

3 years ago

Enter an equation to find three numbers with the following properties. Let x be the first number. The second number is 6 more th

krok68 [10]

Answer:

-7, -1, -7

-6, 0, 0

Step-by-step explanation:

x+6

7(x+6)

7(x+6)+ x(x+6) = 0

(x+6)(7+x) = 0

x = -6, -7

-6, 0, 0

-7, -1, -7

4 0

3 years ago

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Wendy is comparing two checking account. one has a monthly fee of $9 and a per-check fee of $0.50, and the other has a monthly f

Ilya [14]

I need this answer too

7 0

3 years ago

Read 2 more answers

Does the point (–3, 2) lie inside, outside, or on a circle with center (4, 0) and radius 5 units?

anastassius [24]

Answer:

The point (-3, 2) lies outside of the circle centered at (4, 0) with radius 5.

Step-by-step explanation:

The distance between two points (x₁, y₁) and (x₂, y₂) on the x-y plane can be calculated with:

√((x₁ - x₂)² + (y₁ - y₂)²)

So in this case, with the points (-3, 2) and (4, 0), the distance is:

√((-3 - 4)² + (2 - 0)²)

√(49 + 4)

√(53) ≈ 7.28

Since 7.28 > 5, the point (-3, 2) lies outside of the circle centered at (4, 0) with radius 5.

8 0

3 years ago