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3 years ago

Write the quadratic equation in factored form. x2 + x - 12 = 0

Mathematics

1 answer:

lapo4ka [179]3 years ago

7 0

Answer:

(x + 4)(x - 3)

Step-by-step explanation:

x^2 + x - 12 = 0

In order to factorise an equation, one must take into consideration the factors of the values in given equation.

In the factored form, the above equation becomes

(x + 4)(x- 3)

Factors of x^2 = x times x

Factors of -12 = +4 x -3

As shown in the factored form above

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A Triangle has an area of 36cm^2. The base and height are scaled by a factor of 5. What is the area of the resulting triangle?

Finger [1]

Answer:

Area of resulting triangle will be 900 $cm^2$ .

Step-by-step explanation:

When sides of any polygon if scaled by a factor of k

then area is scaled by $k^2$

According to the above statement

therefore here in the question since area of original triangle was 36 $cm^2$

and both base and height are scaled by a factor of 5.

therefore area of scaled triangle will be $5^2$ times of the original

that is 25 x 36 which gives 900 $cm^2$

So area of resulting triangle will be 900 $cm^2$

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3 years ago

A number is chosen at random from 1 to 50. find the probability of selecting numbers greater than 3 and less than 39. How to sol

liq [111]

Solve than first chose letter and bind

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3 years ago

Is 1/4 to the 0 power bigger then 1

marishachu [46]

Answer:

yes it is

Step-by-step explanation:

anything took to zerk is zero, 1 is higher thsn zero

4 0

2 years ago

Read 2 more answers

An architect creates a scale model of a building with a scale of 3 inches =11 feet of the actual width of the building is 121 fe

Tomtit [17]

Answer:

The width of the scale model is 33 inches.

Step-by-step explanation:

This question is solved making a relation with the scale model.

In the scale, 3 inches are worth 11 real feet.

The actual width of the building is 121 feet, so we find it's scale by a rule of three.

3 inches - 11 feet

x inches - 121 feet

$11x = 121*3$

Simplifying by 3, both sides

$x = 11*3 = 33$

The width of the scale model is 33 inches.

5 0

3 years ago

I think it’s 393.75 But not Sure can anyone confirm ? Or share the right answer

Naya [18.7K]

Answer:

$415.63

Step-by-step explanation:

it would have been 393.75, but he worked 5 hours overtime and got paid time and a half for it, meaning his normal pay plus half of it. (only for overtime tho).

so first calculate his normal pay:

40 × 8.75 = 350

then add overtime to it

8.75 × 5 = 43.75

43.75 × 1.5 = 65.625

65.625 + 350 = 415.625

round that and its 415.63!

5 0

3 years ago