Brianna asked 45 students if they would vote for her to be student council president. She used her calculator to compare the number of students who said yes with the total number of students. Her calculator showed the result as 0.6222... 1. Write this number as a fraction (Steps)
2. How many students said they would vote for Brianna?

Answers

Answer 1

Answer: 0.6222... is a recurring decimal at the digit '2'

let x = 0.62222....

multiply x by 10 ⇒ 10x = 6.2222.... [we multiply by 10 to leave the recurring digits after decimal point]

multiply x by 100 ⇒ 100x = 62.2222... [we multiply by 100 so that we can again leave the recurring digit after decimal point]

subtract 10x from 100x
100x - 10x = 62.2222... - 6.2222...
90x = 56
x = 56/90
x = 28/45

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There are 28 students would vote for Brianna

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15+ Points, Plus Brainliest if your right!A summer camp has 20 boys and 20 girls. Each day, all camper names are put in a hat, and one name is drawn to receive a prize. What are the odds in favor of boys names being drawn on three out of three nights?
A. ) 1:1
B. ) 1:7
C. ) 1:8
D. ) 7:1

Answers

Answer:

Step-by-step explanation:

Because there are a same number of boys and girls, the odds are 20:20 which can be simplified to 1:1

Hope that helps

Once again the answer is A

Bye have a great time :D

What is b - 3/16 = 5/16

Answers

If you would like to solve b - 3/16 = 5/16, you can do this using the following steps:

b - 3/16 = 5/16
b = 5/16 + 3/16
b = 8/16
b = 1/2

The correct result would be 1/2.

The solution to the equation b - 3/16 = 5/16 is b = 1/2.

To solve the equation b - 3/16 = 5/16, you need to isolate the variable b.

To eliminate the fraction, you can add 3/16 to both sides of the equation:

b - 3/16 + 3/16 = 5/16 + 3/16

Simplifying the equation:

b = 8/16

Now, you can simplify the right side of the equation:

b = 1/2

Therefore, the solution to the equation b - 3/16 = 5/16 is b = 1/2.

To learn more on Equation:

brainly.com/question/10413253

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What is the end behavior of the graph of the polynomial function f(x) = 2x3 – 26x – 24?

Answers

The degree of the function is 3, so it's odd. The leading coefficient is 2, so it's positive. Therefore, the end behavior of the graph of the functions is:
as x approaches negative infinity, f(x) approaches negative infinity
as x approaches positive infinity, f(x) approaches positive infinity

The end behavior of a polynomial function is the behavior of the graph of as approaches positive infinity or negative infinity. The degree and the leading coefficient of a polynomial function determine the end behavior of the graph.

Degree - 3 (odd);

Leading coefficient - 2 (positive).

Then

when $x\rightarrow -\infty,$ then $f(x)\rightarrow -\infty;$
when $x\rightarrow \infty,$ then $f(x)\rightarrow \infty.$

See attached graph of the function for graphical illustration.

Okay so I'm trying to find the volume of a sphere with the radius of 3/4k. When I cube 3/4 do I only cube the top number?

Answers

No, you cube all of the numerator and denominator. This is because when you cube anything you do the number multiplied by the number 3 times. So you do the same with fractions.
$(3)/(4) * (3)/(4) * (3)/(4) = (3)/(4) ^(3)$

Ray is late for work, but would like to drink some coffee before he leaves. The coffee in the pot is too hot, so Ray puts 20 small ice cubes in a mug before pouring in the coffee. The ice cubes measure 1 cm per side. The mug is cylindrical, and has a height of 9 cm and a base of 7 cm. What is volume of the coffee that will fill the mug after the ice cubes have been added (round to the nearest whole number)?A) 113 cm3.
Eliminate
B) 326 cm3.
C) 346 cm3.
D) 424 cm3.

Answers

B) 326 cm3.
The volume of the mug is $\pi r^(2) *h$
r - radius,
h - height

The radius of the mug is 7/2 (half the base) = 3.5cm

volume of the mug = 3.5^2 * PI * 9 = 346 cm3

20 ice cubes = 20 cm3 that you need to substract from 346, that gives 326 cm3.

The volume of the mug is the area of its base · the mug's height, or $\pi r^(2)$ h. This is 3.5 cm · 3.5 cm. · 9 · $\pi$ , or 346.2 $cm^(3)$ . The volume of each ice cube is 1 cubic centimeter, so 20 of them will occupy 20 $cm^(3)$ . This leaves 326 $cm^(3)$ for the coffee.

Cost A=0.6489

take the inverse cosine of both sides

Answers

I am not quite sure what the question asks for,
But this is what i assume it wants:

Cos A= 0.6489
In this given one, we basically find the size of the angle A
we do cosine inverse on both sides to get the size of the angle A
$cos^(-1)$ : It looks like this in the calculator
$cos^(-1)$ × cos A= $cos^(-1)$ (0.6489)
( $cos^(-1)$ and cos cancels out)
A= $cos^(-1)$ (0.6489)
A=49.54°
check:
cos 49.54=0.6489 (its right!)

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