20 POINTS NEED ASAP Which numbers are solutions of 7a−6=a2+4
Choose exactly two answers that are correct.

2

5

7

10

Step-by-step explanation:

solve for a from the given equation: 7a - 6 = a² + 4

a² - 7a + 10 = 0

the equation can be solved using quadratic equation: ax² + bx + c = 0

x₁,₂ = - b ± √(b² - 4ac)

                2a

where a = 1

           b = -7

           c = 10

now, plug in values into the formula:

a₁,₂ = - (-7) ± √(-7² - 4(1)10)

                  2(1)

a₁   = 7 + 3   = 10  =  5

            2          2

a₂   = 7 - 3   = 4  =  2

           2          2

therefore, the answer to the equation is:

a = 5 ;  a = 2

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

answer: entity is prob the answer

step-by-step explanation: