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3 years ago

Why might algebra tiles not be a good tool to use to factor x² + 18x +80

Mathematics

1 answer:

anyanavicka [17]3 years ago

6 0

Answer:

Algebra tiles would not be a good tool to use to factor because you would need to drag an x-squared tile, 18 x-tiles, and 80 plus tiles and it would take a lot of time to drag that many tiles on the board and there might not be enough space to hold all of them. and do u have time to drag 80 tiles? lol

Step-by-step explanation:

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In a survey of 2,000 people who owned a certain type of car, 900 said they would buy that type of car again. What percent of th

soldi70 [24.7K]

Answer:

45%

Step-by-step explanation:

900/2,000 = 45

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3 years ago

Given the following table, what is the quadratic equation?

rusak2 [61]

Answer:

144322221111155554444444333222222

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3 years ago

the equation of a circle in general form is x squared + y squared + 20x + 12 y + 15 equals 0what is the equation of the circle i

Marrrta [24]

Answer: $(x+10)^2+(y+6)^2=121$

Step-by-step explanation:

The equation of a circle in the general form is:

$ax^{2}+by^2+cx+dy+e=0$

The equaton of a circle in standard form is:

$(x-h)^2+(y-k)^2=r^2$

Where the center is at <em>(h, k)</em> and <em>r</em> is the radius

To write the equation of a circle from general form to standard form, you must complete the squaare, as you can see below:

1- Given the equation in general form:

$x^{2}+y^2+20x+12y+15=0$

2- Complete the square:

-Group the like terms and move the constant to the other side.

- Complete the square on the left side of the equation.

- Add the same value to the other side.

Then you obtain:

$(x^{2}+20x)+(y^2+12y)=-15\\(x^2+20x+(\frac{20}{2})^2)+(y^2+12y+(\frac{12}{2})^2)=-15+(\frac{20}{2})^2+(\frac{12}{2})^2\\\\(x+10)^2+(y+6)^2=-15+100+36\\(x+10)^2+(y+6)^2=121$

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3 years ago

2(3x – 1) = 6x – 2 number of solutions

Alexxandr [17]

Answer: All real numbers are solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

2(3x−1)=6x−2

Step 1: Simplify both sides of the equation.

2(3x−1)=6x−2

(2)(3x)+(2)(−1)=6x+−2(Distribute)

6x+−2=6x+−2

6x−2=6x−2

Step 2: Subtract 6x from both sides.

6x−2−6x=6x−2−6x

−2=−2

Step 3: Add 2 to both sides.

−2+2=−2+2

0=0

4 0

2 years ago

1.Jessica lost some of her money. She found 3/6 of it. What fraction of her money is still missing ?

notsponge [240]

Hey there!

1.
If Jessica found 3/6 of her money, half of it is still missing.

This is because 3/6 = 1/2, so Jessica also found half of her money and is missing half of it.

2.

16 ounces = 1 pound

16 ounces * 10 pounds = 160 <------

If the baby weighs 10 pounds, he weighs 160 ounces.

Hope this helps you.
Have a great day!

7 0

3 years ago

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