3 years ago

Solving Quadratic equations by factoring 2x^2-20x+42

Mathematics

1 answer:

elixir [45]3 years ago

8 0

Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula.

x = 7,3

You might be interested in

As an estimation we are told £3 is €4.

Lesechka [4]

Answer:

£50.63

Step-by-step explanation:

If €4 = £3

Therefore one €1 = £3/4

Now, Converting €67.50 to pounds,

67.50 * 3/4 = £50.625

£50.63 (answer rounded to 2 DP)

Current time conversion,

67.50 Euro equals 60.68 Pound sterling

7 0

3 years ago

Celia made 3 and 1-half cups of rice. A serving of rice is 2-thirds cup. How many servings of rice did Celia make? A. 2 and 1-th

ss7ja [257]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

B² - 4ac also known as

Musya8 [376]

Answer:

-143

Step-by-step explanation:

(I THINK)

3 0

3 years ago

A recipe for chilie uses 2 1/3 cups of beans. Keith is making 1 1/2 times the recipe. Which equation helps keith find how many c

yuradex [85]

Answer:

$2\frac{1}{3} * 1\frac{1}{2} = 3\frac{1}{2}$

Step-by-step explanation:

Given that a recipe of chilie requires $2\frac{1}{3}$ cups of beans, to make $1\frac{1}{2}$ times the recipe, Keith would need x cups of beans.

Thus:

1 recipe = $2\frac{1}{3}$ cups of beans

$1\frac{1}{2}$ of the recipe = x cups of beans

$x*1 = 2\frac{1}{3} * 1\frac{1}{2}$

$x = \frac{7}{3} * \frac{3}{2}$

$x = \frac{7}{2}$

$x = 3\frac{1}{2}$

Therefore the equation that helps Keith find how many cups of beans he needs is: $2\frac{1}{3} * 1\frac{1}{2} = 3\frac{1}{2}$

6 0

3 years ago

Mona has a bag containing 4 red marbles, 12 greens marbles, and 8 black marbles. Without looking, she pulls out one marble from

sveticcg [70]

Answer: C (4/24*3/23)

Step-by-step explanation:

4 red

12 green

8 black

24 total

pulling red on the first pull:

4/24

pulling red on the second pull:

3/23

so C

7 0

3 years ago