4 years ago

Write general term of

Mathematics

1 answer:

damaskus [11]4 years ago

8 0

First one is X_n = (2n-1)/2n - X_(n-1) (n=0,1,2.....)Second one is X_n = (-1)^(n-1) n^2/(n^3+1) (n=1,2...)

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Algebra work need help please show working

Nastasia [14]

Expand the left side:

(3x + 2) (5x + 1) = 15x² + 10x + 3x + 2 = 15x² + 13x + 2

Then a = 15 and b = 13, so a - b = 2.

8 0

3 years ago

Can someone please help with this question

maksim [4K]

Answer:

X = 7.2

Step-by-step explanation:

Hello

For the triangle of right side, using Pytagoras:

(2.5)^2 + b^2 = 6^2

6.25 + b^2 = 36

b^2 = 36 - 6.25

b^2 = 29.75

b = 5.45

Now we can to find X using again Pytagoras:

3^2 + (5.45)^2 = x^2

9 + 29.75 = x^2

38.75 = x^2

X = 7.2

Best regards

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3 years ago

How much cakes can you bake if 1,12 of teaspoon of vanilla and she has 9/12 of teaspoon?

prohojiy [21]

If 9/12 is how much it takes to bake a cake you would need 9 of 1 and1/2

7 0

3 years ago

Tim added two fractions with denominators of 4 but with different numerators. The sum was 3 over 4. Which two fractions did Tim

puteri [66]

Answer:

It could be 2/4+1/4

2+1=3 and they both have a denominator of 4

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3 years ago

Simplify (2/9)^3 A.6/9 B.8/729 C.2/720

saw5 [17]

Answer:

$\frac{8}{729}$

Explanation:

Before we begin, remember that:

( $\frac{a}{b}$ )ⁿ = $\frac{a^n}{b^n}$

This means that power is distributed in case of division

The given is:

$(\frac{2}{9} )^3$

Applying the above rule, we would get:

$(\frac{2}{9} )^3$ = $\frac{2^3}{9^3} = \frac{2*2*2}{9*9*9} = \frac{8}{729}$

Hope this helps :)

8 0

3 years ago