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stira [4]
3 years ago
14

Write and solve a quadratic equation with the following roots: x= 2 and x= 4

Mathematics
1 answer:
Leya [2.2K]3 years ago
5 0
When you use the quadratic formula, you’re making the function equal to 0. So we know that the zeros happen when x equals 2 and 4. So let’s try to think of a trinomial that factors to (x - 2)(x - 4). You could do FOIL to get x^2 - 6x + 8.

Now if you want to show your work, plug everything into the quadratic formula. Due to limitations on a phone, ill just write it out.

-b plus and minus the square root of b squared minus 4 times a times c, alllll over 2 times a
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PLEASE HURRY AND ANSWER FOR ME
aleksandr82 [10.1K]
It’s -4 and it’s -5.........
5 0
3 years ago
Read 2 more answers
9. YOU BE THE TEACHER Your friend
Crank

Answer:

Step-by-step explanation:

Yes, it's reasonable.

What you are doing is solving the question by rounding. You come up with an answer. Suppose you loose the decimal somewhere and you get 0.36? Is that reasonable? Do you just write the answer in the provided blank and move on. What now?

You get it wrong?!!

But your estimate should be about 9/3 = 3. Now you look at your calculator with great misgivings, because it made a mistake. Did it or did you? Well ultimately you did, but you have to blame something. So the calculator takes the heat.

Who  knows? Maybe the decimal doesn't work. It's stuck or something. In any event you should be aware that there's no way the answer could be 0.36 when you estimate it to be 3.

8 0
2 years ago
PLEASE HELP! Sakura's house is at an elevation between 113 m and 120 m above sea level. Her friend Ted lives about 15 m below he
EastWind [94]

Answer:

98 and 105

Step-by-step explanation:

4 0
2 years ago
2.Solve the system using substitution.
Lena [83]
2x+2y=38
y=x+3

First you would substitute the y for x+3
2x+2(x+3)=38

You would multiply the 2 by the x+3
2x+2x+6=38

Add the 2x and the 2x
4x+6=38

Subtract the 6 on both sides
4x=32

Divide the 4 on both sides
x=8

Now substitute the x in the second problum for 8
y=8+3

Add the 8 and the 3 to solve for y
y=11

Your answers
x=8
y=11
the correct answer would be A:(8,11)
3 0
2 years ago
What is the value of f(g(1))​
jeka57 [31]

Answer: 1

Step-by-step explanation:

All you had to do was multiply g by 1 so f(g(1)) as a value is 1

8 0
2 years ago
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