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Law Incorporation [45]
3 years ago
5

Solve 2a 2 - 3a - 2 = 0 {-1/2, 2} {1/2, -2} {}

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
8 0
Apply slip and slide
a^2-3a-4
(a-4)(a+1)
(a-2)(2a+1)

Find zeros
a-2=0
a=2

2a+1=0
2a=-1
a=-1/2

Final answer: {-1/2, 2}
Igoryamba3 years ago
8 0
The answer is {-1/2, 2}
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3 years ago
Read 2 more answers
What is the y-intercept of the line perpendicular to the line...
Dominik [7]

Answer:

D) 5

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes.

The line: y=\frac{3}{4} x+3 has a slope of \frac{3}{4} as it is  in y=mx+b form, where m is the slope, and b is the y-intercept.

Since the slope is \frac{3}{4}, we see that the negative reciprocal slope is -\frac{4}{3}, as \frac{4}{3} is the reciprocal (flip the numerator and denominator).

From here, we can use point slope form: y - y1 = m(x- x1), where (y1, x1) is  the point. In this case, (3, 1) is the point.

Thus, we have: y-1 =-\frac{4}{3}(x-3) as our final equation.

Simplifying: y-1 = -\frac{4}{3}x+4

And: y=-\frac{4}{3}x+5, which gives us the y-intercept to be 5.

Let me know if this helps!

4 0
2 years ago
2. Solve the following system of equations using substitution.
SOVA2 [1]
First, make sure you convert both equations into standard form. Your two equations would be 2x+2y=38 and -x+y=3. Then multiply the bottom by 2. So your new equations would be 2x+2y=38 and -2x+2y=6. The x would cancel out and you would continue solving for y. y would equal 11 and then you would plug it back into an original equation. When you plug and solve for x, you would get x=8. So your answer would be (8,11)
4 0
3 years ago
Please help me I’ll mark you brainlyest.
Alenkasestr [34]

Answer:

10 and 7

Step-by-step explanation:

I hope this helps you out with your question! Can you plz consider marking me brainliest and thanks! Plz tell me how the answer was! It feel nice to be appreciated! Comment /free for a giveaway entry of 20 thanks and 2 brainliest. Have an awesome day! Let me know if you have any questions!

                                                               -KaraYeaton18

7 0
3 years ago
Calculate the reciprocal of -0.013, correct to 1 decimal
algol [13]

Answer:

Step-by-step explanation:

-0.013 = \frac{-13}{1000}

Reciprocal = \frac{-1000}{13} =-76.9

3 0
3 years ago
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