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3 years ago

Emergency please it’s due in 20 mins

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

Answer:

12.11

Step-by-step explanation:

all you have to do is add them together (this is for the first page)

11.34 + 0.77 = 12.11

pychu [463]3 years ago

5 0

Look at comment
.........

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Part B Using squares 1, 2, and 3, and eight copies of the original triangle, you can create squares 4 and 5. Keep the square 4 a

disa [49]

The 4 sides of a square are usually the same and the side length of squares 4 and 5 is a+b.

<h3>How to explain the square?</h3>

From the diagram, each side is called the side length. Therefore,

Side length of square 4 = a + b
Side length of square 5 = a + b

If the side lengths are equal that is (a + b), then the area which is the square of the side length will also be the same.

Learn more about square on:

brainly.com/question/25092270

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3 years ago

Write the ratio as a fraction in simplest form,with whole numbers in the numerator and denominator 42 to 6

nadya68 [22]

42/6 simplified equals 7/1 or just 7

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3 years ago

PLEASE ANSWER AS SOON AS POSSIBLE WILL GIVE "Brainliest" TO THE FIRST CORRECT PERSON!!!

saw5 [17]

Answer: $x=18$ ; $y=6\sqrt{3}$

Step-by-step explanation:

You can write two expressions that are in terms of 'x' and 'y'. This is a right triangle, so Pythagorean's theorem can be used. We can also use the angle to find the sine of 30 degrees.

<u>Pythagorean's Theorem:</u>

The values 'a' and 'b' are the two shorter sides of the triangle, while the value 'c' is the longest side of the triangle; the hypotenuse.

$a^2+b^2=c^2$

$x^2+y^2=(12\sqrt{3} )^2$

$x^2+y^2=12^2*\sqrt{3} ^2=432$

<u>Sine of the Angle:</u>

Sine is defined to be the opposite side divided by the hypotenuse. Let's take the sine of 30 degrees:

$sin(\alpha )=opposite/hypotenuse$

$sin(30)=y/12\sqrt{3}$

$\frac{1}{2} =y/12\sqrt{3}$

$y=6\sqrt{3}$

Plug this value of 'y' into the first expression derived from Pythagorean's theorem:

$x^2+y^2=432$

$x^2+(6\sqrt{3} )^2=432$

$x^2+108=432$

$x^2=432-108=324$

$x=\sqrt{324}$

$x=18$

Use this value of 'x' to solve for 'y' in the expression from Pythagorean's theorem:

$(\sqrt{324})^2+y^2=432$

$324+y^2=432$

$y^2=432-324=108$

$y=\sqrt{108}$

$y=\sqrt{36*3}$

$y=6\sqrt{3}$

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2 years ago

Part A: What is the percent discount rate at Yoshi's Electronics? Gaming Chair

MArishka [77]

Answer:

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Step-by-step explanation:

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2 years ago

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PLEASE HELP OR ELSE MOM WILL BE REALLY MAD!!!!! Two trains, one going from Boston to New York and the other going from New York

Rufina [12.5K]

Answer:

140 mile

Step-by-step explanation:

$d_{1} +d_{2} =220\\2(2x-10+x)=220\\x=40\\d_{1}=2*(2*40-10)=140mile$

While x is the speed of the second train.

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3 years ago

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