All categories

3 years ago

I’m confused someone explain please

Mathematics

1 answer:

Naya [18.7K]3 years ago

3 0

Answer:

3(x - 12)(x + 2)

Step-by-step explanation:

Given

3x² - 30x - 72 ← factor out 3 from each term

= 3(x² - 10x - 24) ← factor the quadratic

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 10)

The factors are - 12 and + 2 , since

- 12 × 2 = - 24 and - 12 + 2 = - 10 , thus

x² - 10x - 24 = (x - 12)(x + 2) and

3x² - 30x - 72 = 3(x - 12)(x + 2)

You might be interested in

I’m not sure what the answer can I get some help

Ronch [10]

Answer:

B.) $9.25p + 8.9t\leq 100$

Step-by-step explanation:

8 0

3 years ago

The scale on a trail map is 0.5 cm : 1 km. The straight distance between 2 huts on the trail is 16.9 cm. What is the actual dist

sesenic [268]

We have been given that the scale on a trail map is 0.5 cm : 1 km. The straight distance between 2 huts on the trail is 16.9 cm. We are asked to find the actual distance between 2 huts.

We will use proportions to solve our given problem.

$\frac{\text{Actual length}}{\text{Scale length}}=\frac{\text{1 km}}{\text{0.5 cm}}$

$\frac{\text{Actual length}}{\text{16.9 cm}}=\frac{\text{1 km}}{\text{0.5 cm}}$

$\frac{\text{Actual length}}{\text{16.9 cm}}\times \text{16.9 cm}=\frac{\text{1 km}}{\text{0.5 cm}}\times \text{16.9 cm}$

$\text{Actual length}=\frac{\text{1 km}}{\text{0.5}}\times \text{16.9}$

$\text{Actual length}=33.8\text{ km}$

Therefore, the actual distance between both huts is 33.8 km.

6 0

3 years ago

Find the aspect ratio of a computer screen that measures 12 inches by 16 inches.

alexdok [17]

Answer:

3:4

Step-by-step explanation:

That ratio would be 12:16, or 3:4.

8 0

3 years ago

(b) John begins his jogging workout by running faster and faster for about a minute. Once he hits a comfortable pace, he

Over [174]

Answer:

What am i supposed to answer?

4 0

3 years ago

When a figure is translated on a coordinate grid, what conclusion can you draw from the pre-image and image? The orientation cha

blagie [28]

The correct answer is -The position changes, and the angles remain congruent. or C.

The size does not change because the shape is only moving to new coordinates not growing or shrinking.
This means the shape also does not change.
When you translate a shape in geometry it means you are changing the position. But the shape will remain the same, meaning the angles remain congruent.

8 0

3 years ago

Read 2 more answers