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BartSMP [9]
2 years ago
9

Solve algebraically the simulaneous equations y=2x^2-3x-102x-y=-2​

Mathematics
1 answer:
enot [183]2 years ago
3 0

Answer:

X=-3/2, X=4

Step-by-step explanation:

Really easy

Image attached

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(x+1) - 4<br><br>How do i determine the roots ​
irga5000 [103]
<h2><u>Solution</u>:</h2>

<em>To find the zero,</em>

<em>x</em> + 1 - 4 = 0

<em>x</em> = 4 - 1

<em>x</em> = 3

3 is the <u>root</u> of <em>(x + 1) - 4</em>.

4 0
3 years ago
Use the Pythagorean identity
kirza4 [7]

Answer:

2√61/19

Step-by-step explanation:

sin^2 x = 1 - cos^2 x

            =  1 - (3√13/ 19)^2

             =   1 - 117/361

              =  244/361

sin x       = √244/19

              = 2√61/19.

8 0
1 year ago
FOR A TEST!! HELP! Complete the similarity ratio for the similar triangles.
tatyana61 [14]

Answer:

add them up

Step-by-step explanation:

add 8 10 10 and 80 25 20

7 0
3 years ago
Which of the following are solutions to the equation sinx cos(pi/7)-sin(pi/7)cosx=sqrt(2)/2
Arturiano [62]

The solution would be like this for this specific problem:

sin ( x - ( pi / 7 ) ) = - sqrt ( 2 ) / 2
x - ( pi / 7 ) = - pi / 4 + 2n*pi or x - ( pi / 7 ) = (5pi / 4 ) + 2n*pi
x = ( pi / 7 ) - ( pi / 4 ) + 2n*pi or x = ( 5pi / 4 ) + ( pi / 7 ) + 2n*pi
x = ( - 3pi / 28 ) + 2n*pi 

<span>I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>

6 0
2 years ago
Read 2 more answers
About 245 out of 500 students prefer walking instead of riding the bus to school. About what percent of the students prefer walk
nasty-shy [4]

Answer:

49 percent

Step-by-step explanation:

So convert the fraction into a percentage

245/500= 49%

7 0
2 years ago
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