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timurjin [86]
2 years ago
13

Select the correct answer. Which statement describes the effect of inflation on purchasing power? A. As the rate of inflation re

mains constant, purchasing power increases. B. As the rate of inflation remains constant, purchasing power stays the same. C. As the rate of inflation increases, purchasing power increases. D. As the rate of inflation increases, purchasing power decreases.
Mathematics
1 answer:
Readme [11.4K]2 years ago
8 0

Answer:

D

Step-by-step explanation:

more money for everyone = higher price of goods

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Prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A​
astraxan [27]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)} ← expand numerator/denominator using FOIL

= \frac{1-sin^2A}{1-cos^2A}

= \frac{1-(1-cos^2A)}{1-(1-sin^2A)}

= \frac{1-1+cos^2A}{1-1+sin^2A}

= \frac{cos^2A}{sin^2A}

= cot²A = right side , thus proven

6 0
3 years ago
The domain of a relation is
adelina 88 [10]
The domain of a relation, otherwise known as a function, is the input, or x values, of the relation
3 0
4 years ago
Read 2 more answers
Given the sequence -3, 9, -27, 81, -243, ..., find the recursive formula.
ollegr [7]

Answer:

a(1)= -3

a(n)=a(n-1) (-3)

Step-by-step explanation:

hope this helps

8 0
4 years ago
what is the common number to be subtracted from each term of the ratio 11:8 to get the new ratio 2:1.?​
JulijaS [17]

Answer:

5 should be subtracted  from each term

Step-by-step explanation:

\frac{11-x}{8-x}=\frac{2}{1}

Cross multiply,

1 * (11 - x) = 2*(8-x)

11 -x = 2*8 - 2*x

11 - x = 16 - 2x

Subtract 11 from both sides,

-x = 16 - 2x - 11

-x = 5 - 2x

Add 2x to both sides

-x +2x = 5 - 2 + 2x

x = 5

7 0
3 years ago
A spinner with 9 equal sections is numbered 1 through 9. The probability of spinning a 1 or a 9 is 29 . What is the probability
xz_007 [3.2K]
Just subtract 100 - 29 i think 
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3 years ago
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