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3 years ago

I need help please i need help please

Mathematics

1 answer:

earnstyle [38]3 years ago

4 0

Answer:

1. C

2. A

Step-by-step explanation:

I hope this helps!

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I only need the first three answers now, please help

alekssr [168]

9 × 16 × 3 = 432

15 × 12 × 17 = 3060

7 × 6 × 10 = 420

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2 years ago

Larry measures the lens on a magnifying glass and calculates that it has an area of 50.24 square centimeters. What is the lens's

alina1380 [7]

Answer:

I think it might be = 16

Step-by-step explanation:

50.24/3.14

3 0

3 years ago

Read 2 more answers

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

Find the area of a rectangle whose vertices are (2,1), (2,11), (9,1), and (9,11).

lys-0071 [83]

The answer that I got when doing the calculations is A=70.

5 0

3 years ago

Find the Roots of the following polynomial. <br><br> x3−5x2+6x = 0

ICE Princess25 [194]

Answer:

(1): "x2" was replaced by "x^2". 1 more similar replacement(s).

Step by step solution :

STEP

Equation at the end of step 1

((x3) - 5x2) - 6x = 0

STEP

Pulling out like terms

3.1 Pull out like factors :

x3 - 5x2 - 6x = x • (x2 - 5x - 6)

4 0

3 years ago

Read 2 more answers