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3 years ago

What are the values of x and y?

Mathematics

1 answer:

ss7ja [257]3 years ago

5 0

Answer: x=35 and y=72.5

Step-by-step explanation:

Everything os 360, so x is 35 because it los like it has the same measure as the another 35, so if you substract 70 360=290 and 290/4 = 72.5

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Solve for each system of equations by substitution or elimination.

Tems11 [23]

QUESTION 1

The given system of equations are:

$y=x^2+5x+1$

$y=x^2+2x+1$

We equate the two equations to get:

$x^2+5x+1 =x^2+2x+1$

$x^2 - {x}^{2} + 5x - 2x = 1 - 1$

$3x = 0$

$x = 0$

When x=0,

$y=0^2+2(0)+1 = 1$

The solution is (0,1)

QUESTION 2

The given equations are:

$y=x^2-2x - 1$

and

$y= -x^2-2x-1$

We equate both equations to get:

$x^2-2x - 1 = -x^2-2x-1$

Group similar terms,

$x^2 + {x}^{2} -2x + 2x= -1 + 1$

$2 {x}^{2} = 0$

$x = 0$

We put x=0 into any of the equations to find y.

$y= -0^2-2(0)-1 = - 1$

The solution is (0,-1).

QUESTION 3

The given equations are:

$y=x^2+2x+1$

and

$y=x^2+2x-1$

We equate both equations:

$x^2+2x+1 = x^2+2x-1$

Group similar terms:

$x^2 -x^2+2x = -1 - 1$

$0 = -2$

This is not true.

Hence the system has no solution.

6 0

3 years ago

Jack rides his bicycle 4 miles in 30 minutes. If he maintains this rate, how far will he ride in 3 hours?

Tpy6a [65]

Answer:

Step-by-step explanation:

8 0

3 years ago

Solve using a conversion factor. Round to the nearest tenth.

SVEN [57.7K]

265.22 or 265 2/10 or 265 1/5

5 0

3 years ago

List at least two conductors and two insulators you use or see being used every day. How do they work?

Mrrafil [7]

Answer:

a conductor: copper and any metal

insulator: rubber and wood

Step-by-step explanation:

We use the insulators to safely touch wire.

We use conductors to help us power things like cars and tv's.

Conductors work by letting electricity freely flow through it.

Insulators the opposite

Hope this helps buddy

3 0

2 years ago

Eric bought a personal CD player for $12 less than the regular price.if he paid $54 what was the regular price

PIT_PIT [208]

Answer:

$66

Step-by-step explanation:

66 - 12 = 54

7 0

3 years ago