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3 years ago

What is the value of 89 3/4

Mathematics

2 answers:

wolverine [178]3 years ago

7 0

Answer:

fraction form- 359/4

Decimal form- 89.75

Step-by-step explanation:

Denominator times whole number. Then add by the numerator.

multiply 4 by 89. Then add 3. which makes 359/4

If you want a decimal just divide 369/4 on paper or calculator.

Roman55 [17]3 years ago

3 0

Answer:

89.75

Step-by-step explanation:

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Which of the following have the property that a(x)=a−1(x)? I. y=x II. y=1/x III.y=x^2 IV. y=x^3 A. I and II, only B. IV, only C.

valentina_108 [34]

Answer:

Correct answer:

A. I and II

Step-by-step explanation:

First of all, let us have a look at the steps of finding inverse of a function.

1. Replace y with x and x with y.

2. Solve for y.

3. Replace y with $f^{-1}(x)$

Given that:

$I.\ y=x \\II.\ y=\dfrac{1}x \\III.\ y=x^2 \\IV.\ y=x^3$

Now, let us find inverse of each option one by one.

I. y = x, a(x) = x

Replacing y with and x with y:

x = y

x = $a^{-1}(x)$ = $a(x)$ Hence, I is true.

II. $y =\dfrac{1}{x}$

Replacing y with and x with y:

$x =\dfrac{1}{y}$

$x=\dfrac{1}{a^{-1}(x)}$

$\Rightarrow a^{-1}(x) = \dfrac{1}{x}$

$a^{-1}(x)$ = $a(x)$ Hence, II is true.

III. $y =x^{2}$

Replacing y with and x with y:

$x =y^{2}\\\Rightarrow y = \sqrt x\\\Rightarrow a^{-1}(x) = \sqrt{x} \ne a(x)$

Hence, III is not true.

IV. $y =x^{3}$

Replacing y with and x with y:

$x =y^{3}\\\Rightarrow y = \sqrt[3] x\\\Rightarrow a^{-1}(x) = \sqrt[3]{x} \ne a(x)$

Hence, IV is not true.

Correct answer:

A. I and II

4 0

3 years ago

(x² + 6x − 16)(x − 2) = ax³ + bx² + cx + d

stellarik [79]

B is the right answer to this question

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2 years ago

Round 541,776 to the nearest hundred thousand.

wel

500,000

The nearest hundred thousand would be 500,000 and 600,000, but since 541,776 has 4 in next unit, it rounds down.

6 0

3 years ago

What is the solution to the inequality 16x - 70x < 27?

vlada-n [284]

Answer:

16x-70x=-64

-64x 《27.

5 0

2 years ago

Read 2 more answers

A consumer survey conducted in two consecutive years found that a fixed basket of goods and services cost $36.00 in year 1 and $

docker41 [41]

Answer:

0.021/yr or 2.1%/yr

Step-by-step explanation:

Find the quotient:

$36.75/$36.00

This comes out to 1.021,

so the inflation rate is 1.021 - 1.000 = 0.021 or 2.1%/year

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3 years ago