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1 year ago

Which number is composed of exactly 8

Mathematics

2 answers:

Keith_Richards [23]1 year ago

6 0

Answer:

B is the answer

Step-by-step explanation:

because it said 8 thousands so you know its not D and it says 7 tens so you know its not C and for 9 sense the hundredths has (ths) you know it's not A so the answer is B.

ozzi1 year ago

3 0

Answer:

B) 8070.09

Step-by-step explanation:

First, we must identify the difference in wording for decimals and whole numbers.

1000 = Thousand

.001 = Thousandth

Now, let's break down the words:

8 thousand = 8 × 1000 = 8000

7 ten = 7 × 10 = 70

9 hundredth = .01 × 9 = .09

8000 + 70 + .09 = 8070.09

Therefore, B would be the correct answer.

-kiniwih426

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Please help. 24 points!!

Lina20 [59]

The given function is,

$f(x)= \frac{2x-1}{x+5}$ .

Or, $y= \frac{2x-1}{x+5}$

To find the inverse of a function, first step is to switch x and y. Therefore,

$x= \frac{2y-1}{y+5}$

Next stpe is to solve the above equation for y t get the inverse f f(x). Hence, multiply each sides by y + 5 to get rid of fraction form. So,

$x*(y+5)= \frac{2y-1}{y+5}*(y+5)$

xy + 5x = 2y - 1

xy = 2y - 1 - 5x Subtract 5x from each sides to isolate y.

xy - 2y = -5x - 1 Subtract 2y from each sides.

y(x - 2) = -5x -1 Take out the common factor y.

$\frac{y(x-2)}{(x-2)} =\frac{(-5x-1)}{(x-2)}$ Divide each sides by x-2.

$y=\frac{(-5x-1)}{(x-2)}$

So, $f^-1(x)=\frac{-5x-1}{x-2}$

Now when we will compare $f^-1(x)=\frac{-5x-1}{x-2}$ with $f^-1(x)=\frac{ax+b}{cx+d}$ then we will get a = -5, b = -1, c = 1 and d=-2

So, $\frac{a}{c} =\frac{-5}{1} =-5$

Hope this helps you!

6 0

2 years ago

It is colder than −7 ºF outside. Which inequality represents the temperature t?

bekas [8.4K]

Answer:

-7>t

Step-by-step explanation:

If the temperature is lower than -7 degrees Fahrenheit, then the inequality must show a number less than -7. Or in other words, -7 is greater than what the temperature is, thus the answer is -7>t

3 0

2 years ago

the area of the triangle below is 1/4 square meters. what is the length of the base. express your answer in simplest form

Alexeev081 [22]

Answer:

4/5

Step-by-step explanation:

Given,

Area of the triangle = 1/4 square meters

From the diagram,

Height = 2/5 m

To find : Length of the base

Formula : -

A = bh/2

Here,

A denotes Area

b denotes Base

h denotes Height

A = 1/4

h = 2/5

A = bh/2

Cross multiply,

A * 2 = bh

2A = bh

2 * (1/4) = b * (2/5)

(1 * 2)/4 = (b * 2)/5

2/4 = 2b/5

1/2 = 2b/5

Cross multiply,

1 * 5 = 2 * 2b

5 = 4b

b = 4/5 meters

Hence,

The length of the base is 4/5 meters.

5 0

1 year ago

The difference 3 1/2 minus 1 1/2 must be between and

bija089 [108]

Answer:

Step-by-step explanation:

3 1/2 - 1 1/2 = 2

PLS GIVE BRAINLIEST

5 0

2 years ago

Differentiate between a fixed and movable pulley.

Tamiku [17]

Answer:

Step-by-step explanation:

A fixed pulley consists of a wheel fixed to a shaft and is used in conjunction with a belt to transfer energy to another fixed pulley. A movable pulley consists of a shell, a movable wheel and a rope. Movable pulleys are also know as block and tackle.

8 0

2 years ago