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2 years ago

Find -18 + (-67) Show work.

Mathematics

1 answer:

PtichkaEL [24]2 years ago

8 0

Answer:

- 85

Step-by-step explanation:

-18 - 67= -85

Hope this helps! :) plz mark brainliest

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Which of the following is the inverse of the given function? Y=3x^5-4

lawyer [7]

$y\textrm{ }=\textrm{ }(\frac{x\textrm{ }+\textrm{ }4}{3} )^{\frac{1}{5} }$

Step-by-step explanation:

Given function $y\textrm{ }=\textrm{ }3x^{5}\textrm{ }-\textrm{ }4$

To find an inverse for any given function, which is of the form $y=f(x)$ , always swap $x$ and $y$ in the equation and try to get the form $x=f(y)$ . Now, swapping back $x$ and $y$ , we get the inverse function.

On swapping $x$ and $y$ , we get $x\textrm{ }=\textrm{ }3y^{5}\textrm{ }-\textrm{ }4$

$y\textrm{ }+\textrm{ }4\textrm{ }=\textrm{ }3x^{5}$

$x^{5}\textrm{ }=\textrm{ }\frac{y\textrm{ }+\textrm{ }4}{3}$

$x\textrm{ }=\textrm{ }(\frac{y\textrm{ }+\textrm{ }4}{3} )^{\frac{1}{5} }$

Swapping back $x$ and $y$ , we get $y\textrm{ }=\textrm{ }(\frac{x\textrm{ }+\textrm{ }4}{3} )^{\frac{1}{5} }$

This is the inverse function.

3 0

2 years ago

The sum of the digits in a two digit number is 5. If 27 is subtracted from the number then places of the digits are interchanged

EleoNora [17]

Please find the attached photograph for your answer

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2 years ago

Please show your work. Convert decimals into fractions in simplest form

Hoochie [10]

Answer:

1. 0.5 = 5/10 ÷ 5 = 1/2

2. 0.7 = 7/10

3. 0.33 = 33/100 ÷ 33 = 1/3

4. 0.875 = (875/1000) ÷ 125 = 7/8

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2 years ago

Estimated sum of 71,458

Rudiy27

Answer:

there can be a lot example:

71,000

71,500

71,460

Step-by-step explanation:

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2 years ago

In a school election, Violet received 156 votes. She got 60% of all the votes. How many total votes were cast? Which equation CA

Dafna1 [17]

Answer:

1) Total votes = 260

2) option (a) CANNOT be used to answer this question

================================================

Step-by-step explanation:

Part (A)

let all the votes = x

Violet received 156 votes which equal to 60% of all the votes

∴ 156 = 60% of x

60% = 60/100 = 0.6

∴156 = 0.6 x ⇒ x = 156/0.6 = 260 votes

Part (B) :

options (b), (c) and (d) can be used to answer this question because they will give the same result of part (A)

<u>While option (a) CANNOT be used to answer this question.</u>

Check the following

a. 0.6 times 156 = x ⇒ x = 93.6

b. 156 = 0.6x ⇒ x = 260

c. 156/0.6 = x ⇒ x = 260

d. 156/x = 60/100 ⇒ x = 260

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2 years ago