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3 years ago

Determine the length of a circumference whose diameter is 14 cm.

Mathematics

2 answers:

Julli [10]3 years ago

8 0

I hope this helps you

skad [1K]3 years ago

6 0

The circumference will be 14×1.14

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A letter is chosen from the word ROCK and a standard die is

gavmur [86]

Answer:

ummm well to change your UN you have to email the brainly FAQ and ask if you can im trying to change myne to

Step-by-step explanation:

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3 years ago

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Which of the following DOES NOT have any rectangular faces? A. pentagonal prism B. hexagonal pyramid C. rectangular prism D. squ

docker41 [41]

A pentagonal prism, a rectangular prism, and a square pyramid all have rectangular faces but a hexagonal pyramid does not.

A hexagonal pyramid only consists of a hexagon and triangles. Therefore, the answer is B. Hexagonal Pyramid.

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3 years ago

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This monitor has a diagonal length of 19 inches and an aspect ratio of 5:4. What are the width and height of the monitor? Round

nasty-shy [4]

<em>Rounded to the nearest tenth of an inch the Witdth of the monitor is 14.8 inches while the Height of the monitor is 11.9 inches.</em>

<h2>Explanation:</h2><h2 />

The aspect ratio is defined as:

<em>"The proportional relationship between the width and height of an image"</em>

It is usually expressed in a mathematical language as:

$x:y \\ \\ x: \ Width \\ \\ y: \ Height$

So, it is true that:

$x:y=5:4 \\ \\ or: \\ \\ \frac{x}{y}=\frac{5}{4} \\ \\ \therefore x=\frac{5y}{4}$

In this case, we know that the monitor has a diagonal length (D):

$D=19in$

So, by Pythagorean theorem:

$D^2=361 \\ \\ 361=x^2+y^2 \\ \\ Since \ x=\frac{5y}{4}$

$D^2=361 \\ \\ 361=x^2+y^2 \\ \\ Since \ x=\frac{5y}{4} \\ \\ 361=\left(\frac{5y}{4}\right)^2+y^2 \\ \\ 361=\frac{25y^2}{16}+y^2 \\ \\ \frac{41}{16}y^2=361 \\ \\ y^2=\frac{261\times 16}{41} \\ \\ y=\sqrt{140.87} \\ \\ y=11.869in$

Finding x:

$x=\frac{5(11.869)}{4} \\ \\ x=14.836in$

<em>Finally, rounded to the nearest tenth of an inch the Witdth of the monitor is 14.8 inches while the Height of the monitor is 11.9 inches.</em>

<h2>Learn more:</h2>

Pythagorean Theorem: brainly.com/question/10182890

#LearnWithBrainly

5 0

3 years ago

The equation y = 7x+25 gives the number of minutes it takes to prepare a meal y given the number of people being served x. Which

scoray [572]

Given equation y=7x+25.

where x represents number of people being served and y represetns number of minutes it takes to prepare a meal.

Number of people can be taken for x variable are 1,2,3,4...

From the given equation if we plug x=0, it gives y=7(0)+25= 0+25=25.

So, fix number of minutes is 25 minutes to prepare a meal.

If we take x=1, that means we are taking 1 extra person and if we plug x=1 in original function, we get y=7(1)+25= 7+25.

So, it is taking 7 extra minute to prepare a meal.

Let us check by adding one more person. For that we need to take 1+1=2 number of person.

On plugging x=2, we get y=7(2) +25 = 14+25 = 7+7+25.

So every time if we add extra person, the time increase by 7 minutes to prepare a meal.

Therefore, Option "C) For every extra person served, the time it takes to prepare a meal increases by 7 minutes." is correct option.

4 0

3 years ago

I need help really bad :(

Darya [45]

Answer:

5x+ 13x = 180

Step-by-step explanation:

The two angles form a straight line, which is equal to 180 degrees

We can add the angles together which will total 180

5x+ 13x = 180

6 0

4 years ago