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Sunny_sXe [5.5K]
3 years ago
12

.

Mathematics
1 answer:
denpristay [2]3 years ago
3 0

Answer:

x = 10, y = 0

Step-by-step explanation:

x + y = 10 ---> x = 10 - y

3x + 2y = 30

3 (10 - y) + 2y = 30

30 - 3y + 2y = 30

y = 0

x + 0 = 10

x = 10

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Answer:

8

Step-by-step explanation:

Given:

Annuity at time (n + 1) = 13.776

(1 + i)ⁿ = 2.476

Now,

S_{n/i}=\frac{(1+i)^n-1}{d}

here, d = \frac{i}{1-i}

thus,

13.776=\frac{2.476-1}{d}

or

d = 0.1071

therefore,

d = \frac{i}{1+i}

or

0.1071 = \frac{i}{1+i}

or

0.1071 + 0.1071i = i

or

i = 0.1199

now,

(1 + i)ⁿ = 2.476

or

(1 + 0.1199)ⁿ = 2.476

1.1199ⁿ = 2.476

taking log both sides

n × log(1.1199) = log(2.476)

or

n = 8.006 ≈ 8

hence,

the answer is 8

7 0
3 years ago
Simplify (x^3)(x^-2)
Charra [1.4K]
Hey there!

When multiplying variables with the same degree, be sure to add the two degrees being multiplied.

For example;

x * x; both of these terms have the degree of "1" as they are "x^1". Since we are multiplying them, we need to add their degrees.
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Now that we've broken down what we are doing, let's apply this new knowledge to your problem.

(x^3)(x^-2); Remember to just add the degrees; -2 + 3 = 1
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I hope this helps!
8 0
4 years ago
PLEASE HELP ASAP
zheka24 [161]

Answer:

the second forth and fifth on the graph.

Step-by-step explanation: have a good day!

5 0
2 years ago
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8 0
3 years ago
What is equivalent to <br> (3x+1)(4x-1)
valentinak56 [21]
(3x+1)(4x-1)

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So

(3x+1)(4x-1) = 7x

I hope this helped and was right, have a nice day
4 0
3 years ago
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