MATHEMATICS HIGH SCHOOL

i need help asap! ONLY GIVING BRAINLIEST TO CORRECT! If your answer is not correct, im deleting it :)) I NEED TO GET THIS CORRECT thank youu
i need help asap! ONLY GIVING BRAINLIEST TO CORRECT! If - 1

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

The candle is cylindrical in shape.

The formula for determining the volume of a cylinder is expressed as as

Volume = πr²h

Where

π = 3.14

r represents radius of the cylinder and also the candle

h represents the height of the cylinder and also the candle.

Looking at the diagram,

r = 4 cm

h = 6 cm

Volume of candle = 3.14 × 4² × 6

= 301.44 cm³

Looking at the table,

60 cm³ of the candle melts off in 2 hours, it means that the in one hour, the volume of candle that melts off would be 60/2 = 30cm³

Therefore, in 7 hours, the volume of candle that would melt off is

30 × 7 = 210 cm³

Therefore, the percent of candle that is melted off after 7 hours would be

210/301.44 × 100 = 69.67%

Approximately 70% to the nearest percent.
Answer 2
Answer:

Answer:

After 7 hours about 70% of the candle was melted

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Find the product of (-12) and (3).
-36
-4
4
36

Answers

A negative multiplied by a positive ALWAYS results in a negative. To make things simpler, you could multiply 12 by 3 to get 36, and then add on a negative afterwards. Otherwise, you can use your integer rules or a calculator. Any way you do it, the answer will be -36.
it would be -36 because a negative times by a positive is a negative

Find the quotient.

1,976 ÷ 38

52
42
48
58

Answers

The answer is going to be 52

15% of 20 is what number?

Answers

Answer:

Brainliest plz

Step-by-step explanation:

20 x 15%

is equal too...

20 x 0.15

and that is equal to

...

3

Carmela mixes 3/4 kilogram of walnuts, 1/2 kilogram of almonds, and 1/4 kilogram of pecans together. She divides the mixed nuts into 3/10 kilogram bags. How many bags of mixed nuts does she have.

Answers

The total number of bags of mixed nuts with Carmela are 5.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is Carmela who mixes 3/4 kilogram of walnuts, 1/2 kilogram of almonds, and 1/4 kilogram of pecans together. She divides the mixed nuts into 3/10 kilogram bags.

We can write the equation as -

(3/4 + 1/2 + 1/4) x 1000 = (3/10) x 1000 x n

1.5 x 1000 = 3 x 100 x n

1.5 x 10 = 3n

15 = 3n

n = 5

Therefore, the total number of bags of mixed nuts with Carmela are 5.

To solve more questions on Equation Modelling, visit the link below -

brainly.com/question/14441381

#SPJ2

Answer:

5

Step-by-step explanation:

Two bicyclists leave the center of town at the same time. One heads due north and the other heads due west. Later, the two cyclists are exactly 25 mi apart. The cyclist headed north has traveled 5 mi farther than the cyclist going west.How far has the cyclist going west traveled?

Answers

Answer:

Distance traveled by bicyclist traveling west  = 15 miles

Step-by-step explanation:

Two bicyclists leave the center of town at the same time. One heads due north and the other heads due west. Later, the two cyclists are exactly 25 mi apart. The cyclist headed north has traveled 5 mi farther than the cyclist going west.

These two cyclists travel at angle 90°

Relative displacement can be calculated using Pythagoras theorem.

Let d be the distance traveled by bicyclist traveling west

Distance traveled by bicyclist traveling north =  d + 5

25^2=d^2+(d+5)^2\n\nd^2+d^2+10d+25=625\n\n2d^2+5d-600=0\n\nd^2+5d-300=0\n\nd=(-5\pm √(5^2-4* 1* (-300)))/(2* 1)\n\nd=(-5\pm √(25+1200))/(2)\n\nd=(-5\pm √(1225))/(2)\n\nd=(-5\pm 35)/(2)\n\nd=15miles\texttt{ or }d=-20miles

Negative displacement is not possible.

Hence d = 15 miles

Distance traveled by bicyclist traveling west = d = 15 miles
This  situation is represented  in annex. 
From Pythagorean theorem you've got equation:
x^2+(x+5)^2=25 \n \n \hbox{From formula} \ \ \ (a+b)^2 = a^2+2ab+b^2: \n \n x^2+x^2+10x+25=25 \n 2x^2+10x=0 \n \n \hbox{Factor out} \ \ 2x: \n 2x(x+5)=0 \n \n \hbox{So you've got:} \n \n x_1=0 \n x_2=-5

There isn't any solutions where x>0, so this situation is IMPOSSIBLE.

Did you write correctly this question....?

What is the range of the function on the graph?O all real numbers
O all real numbers greater than or equal to 0
O all real numbers greater than or equal to 1
O all real numbers greater than or equal to 2

Answers

Answer:

4th Option: All real numbers greater than or equal to 2.

Step-by-step explanation:

Range is the set of y-values that can be outputted by function f(x).

We see here our range spans from 2 to infinity. Since 2 is a closed dot, we can include it in our range. Therefore our answer is All real numbers that are greater than or equal to 2.

[2, ∞)

Answer:all real numbers greater than or Equal to 2

Step-by-step explanation:
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