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wel
3 years ago
14

The legs of a right triangle are 18 centimeters and 80 centimeters long. What is the length of the hypotenuse? (4 points)

Mathematics
1 answer:
matrenka [14]3 years ago
7 0

Answer: 16 or 6 or 9 or 90

Step-by-step explanation: best guess

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Four times a number minus twice another number is -16. The sum of the two numbers is -1. Find the numbers
Ivenika [448]

Answer:

2 and -3

Step-by-step explanation:

Let the numbers be x and y ∴ 4x -2y =-16......................Eqn 1

and x+y=-1.................................Eqn 2

this ⇒x=-1-y. Substitute the value of x to be=-1 -y and putting in Eqn 1 yields the following 4(-1-y)-2y =-16 0r -4-4y-2y=-16

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⇒ and x is -3

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2 years ago
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exis [7]

Answer:

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Step-by-step explanation:

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2 years ago
What is x? if u can’t see it the 2 other degrees are 32 and 120
Westkost [7]

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Step-by-step explanation:

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8 0
2 years ago
Given that Triangle ABC such that<br>a=8cm, b=7cm and c=9cm<br>tem and c= 9cm find Cos B​
charle [14.2K]

Answer:

We use cosine rule also called cosine law which states

c^2=a^2+b^2-2abcosC

given

a=8cm, b=7cm, c=9cm cos C?

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expand

81=64+49-112 cos C

like terms together

81-113=-112 cos C

-32=-112cos C

multiply both sides by -1

32=112cos C

divide both sides by 112

32/112=cos C

cosC=0.2857

find cos inverse of 0.2857

angle C= 73.40

4 0
3 years ago
Y = f(x) + 3<br> describe the functions that take place
hram777 [196]

Answer:

A function can be reflected about an axis by multiplying by negative one. To reflect about the y-axis, multiply every x by -1 to get -x. To reflect about the x-axis, multiply f(x) by -1 to get -f(x).

Step-by-step explanation:

8 0
3 years ago
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