All categories

3 years ago

23 POINTS! NINTH GRADE ALGEBRA HOMEWORK PLEASE HELP ASAP!!

1 answer:

8 0

$\frac{ - b \sqrt{b {}^{2} - 4 \times a \times b} }{ - 2 \times a}$
$a = {x}^{2} \\ b = x \\ c = 12$
$\frac{ - ( - 2) \sqrt{ { - 2}^{2} - 4 \times 2(x)\times - 12} }{ - 2 \times 2}$

You might be interested in

15 less than a number tripled is equivalent to the difference of the same number and 12

Nitella [24]

Step-by-step explanation:

x = number

3x - 15 = (x - 12)×-4 or (12-x)×-4

3x - 15 = -4x + 48 or -48 + 4x

7x = 63, x = 9 or

33 = x

4 0

2 years ago

@ranga @Becki . A new car has a sticker price of $22,450, while the invoice price paid was $19,450. What is the percentage marku

densk [106]

To answer the problem given above, divide the difference of the prices by the original price and multiply the answer by 100%. This is,
((22450 - 19450) / 19450) x 100% = 15.42%
Therefore, the percentage markup of the new car is approximately 15.42%.

7 0

3 years ago

Round to the nearest thousands<br> 3475.6993

Andreyy89

3475.699

°°°°°°°°°°°°°°°

Am I correct?

4 0

3 years ago

In a certain country, the car license plate formed by 4 numbers from the digits 1-9 followed by 3 letters from the alphabet. How

andriy [413]

Answer:

78,624,000 license plates

Step-by-step explanation:

For each of the 4 numbers, we have the following possibilities:

First number: 10 digits possible

Second number: 9 digits possible (one used)

Third number: 8 digits possible (two used)

Fourth number: 7 digits possible (three used)

For each of the 3 letters, we have the following possibilities:

First letter: 26 digits possible

Second letter: 25 digits possible (one used)

Third letter: 24 digits possible (two used)

The total number of license plates is the product of all these possibilities:

Number of plates = 10 * 9 * 8 * 7 * 26 * 25 * 24 = 78,624,000 license plates

7 0

2 years ago

Ttriangle def is a dilation of triangle abc with scale factor 2. In triangle abc the largest angle measures 82 degree what is th

dybincka [34]

We have been given that triangle def is a dilation of triangle abc with scale factor 2. In triangle abc the largest angle measures 82 degree and we are asked to find largest angle measure of triangle def.

Since we know that dilation stretches or shrinks the original figure. Dilation does not change or affect angle measure.

Upon dilating our triangle abc by a scale factor of 2 sides of triangle will increase but angles will remain same.

Therefore, largest angle measure of triangle def will be 82 degrees as well.

4 0

3 years ago