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3 years ago

Find the values of x and y.

Mathematics

2 answers:

fomenos3 years ago

7 0

7x + 7 = 112

-7

7x = 105

divide 7

x = 15

Now, for y.

Angle 112 and the unknown angle = 180*

This means the unknown angle = 68

4y = 68

divide 4

y = 17

asambeis [7]3 years ago

4 0

4y+112=180 angle sum property
Therefore,
4y=180-112
= 68
As 4y=68 then y = 17

Now,
4y +7x+7=180 angle sum property
7x =180-68-7
7x=105
X=15

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A triangle has sides with lengths of 7 feet 17 feet and 20 feet is it a right triangle?

natali 33 [55]

Answer:

This is not a right triangle because 7^2 + 17^2 does not equal 20^2

Step-by-step explanation:

6 0

3 years ago

Please help!! FAST!!

egoroff_w [7]

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3 0

3 years ago

suppose that two people standing 3 miles apart both see the burst from a firework display.after a period of time ,the first pers

Marrrta [24]

The fireworks display occur at 550.331 ft

The generic equation for a hyperbola provided by: is the best method for solving the problem in this instance.

$\frac{y^{2} }{b^{2} } - \frac{x^{2} }{a^{2} } = 1$ -

We presume that the y-axis is where the hyperbola's longer axis lies.

In this instance, the sound traveled a total of 1100 meters, and the value of a can be calculated as follows:

2a = 1100

a = 550ft

Given that the two people are 3 miles apart, we can calculate the value of c in feet as follows:

1 mile = 5280 feet

∴ 3 miles = 15840 ft = c

And this is how we may determine what b is worth:

$b^{2} = c^{2} - a^{2}$

$b^{2} = 15840^{2} - 550^{2}$

$b^{2} = 250603100$

Our equation is thus given by:

$\frac{y^{2} }{250603100 } - \frac{x^{2} }{550^{2} } = 1$

And for this case we want to find the value of x when y = 3ft=15840ft and solving for x we get,

$\frac{15840^{2} }{250603100 } - \frac{x^{2} }{550^{2} } = 1$

$\frac{15840^{2} }{250603100 } - 1 = \frac{x^{2} }{550^{2} }$

$1.001- 1 = \frac{x^{2} }{550^{2} }$

$0.001 = \frac{x^{2} }{550^{2} }$

$302865.145= {x^{2}$

x = 550.331 ft.

The fireworks display occur at 550.331 ft.

Learn more about hyperbola here :

brainly.com/question/14307125

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2 years ago

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Choice F) r^2+4r+3r simplifies to r(r+8)

Step-by-step explanation:

r^2+4r+3r = r^2+8r = r(r+8)

6 0

3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago