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tangare [24]
3 years ago
8

A student determined the value of x as shown. Explain the students error. (Click on photo and NO ABSOLUTELY NO LINKS)

Mathematics
1 answer:
postnew [5]3 years ago
5 0

Answer:

Answer is in the link below- jkjk

Step-by-step explanation:

It's a right angle so it can only add to 90 degrees, not 180

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Solve using any method. −2x+y=3 −3x+y=1 (-1, -2) (2, 7) (-2, -1) (-2, -5)
damaskus [11]

Answer:

Therefore the Final Solution is  x = 2 and y = 7  

i.e (2 ,7)

Step-by-step explanation:

Given:

-2x+y=3                ...............Equation ( 1 )

-3x+y=1                 ...............Equation ( 2 )

y=3x+1                   ..............Equation ( 3 )

To Find:

x = ?

y = ?

Solution:

Substituting Equation  ( 3 ) in Equation ( 1) we get

-2x+3x+1=3\\\\x=3-1\\\\\therefore x =2

Now Substituting x = 2 in Equation ( 3 ) we get

y=3\times 2+1=6+1\\\\\therefore y=7

Therefore the Final Solution is  x = 2 and y = 7  

i.e (2 ,7)

3 0
3 years ago
7. The height of a ball in meters is modeled
s344n2d4d5 [400]

Answer:

the ball is in the air for 8 seconds

Step-by-step explanation:

f(x) = y

when y = 0, the ball would've travelled through the air over the final time of flight.

0 = -5x^2 + 40x + 0

use quadratic equation to find the value of x

x = (-b ± √b^2 - 4 • a • c) / 2 • a

x = (-40 ± √40^2 - 4 • -5 • 0) / 2 • -5

x = (-40 ± √1600) / - 10

x = (-40 ± 40) / - 10

x = 0 or x = 8

7 0
2 years ago
How many microseconds are in one second?
Greeley [361]
The answer is 1,000,000
7 0
3 years ago
URGENT DUE AT 1:00 PLZ HELP... MATH123456
Yuri [45]

Answer:

Step-by-step explanation:

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6 0
3 years ago
2 to the exponent of 5 x 2 to the exponent of 15
just olya [345]

Answer:

{2}^{150}

Step-by-step explanation:

<u>Expression is represented as:</u>

( {2}^{5 \times 2} )^{15}

<u>Solve what's inside the parentheses:</u>

(2^{10} )^{15}

<u>Include exponent outside parentheses:</u>

2^{150}

This exponent represents 2 to the power of 150.

6 0
2 years ago
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