-8 - (-15) + 30 equals

The value of a computer depreciates with age, as shown in the table. Value of a Computer Which function represents the value of

frosja888 [35]

Answer:

f(t) = 1,600(0.8)t

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

How are the GCF and the LCM alike and diffrent? Please help

Daniel [21]

The Gcf is finding the greatest numbers the lcm is finding the least factor

and the are the same because your finding the common number> (means same number)

4 0

3 years ago

A door is 8 feet tall and 4 feet wide. What is the area?

zysi [14]

Answer:

32

Step-by-step explanation:

a door is rectangular in shape

area = length × breadth

8 × 4

32

7 0

3 years ago

Read 2 more answers

Given that ƒ(x) = x2 + 1 and g(x) = –3, multiply the functions (g · ƒ)(x). Question 8 options: A) (g · ƒ)(x) = –3x2 – 3 B) (g ·

vesna_86 [32]

Answer:

A

Step-by-step explanation:

We are given the two functions:

$f(x)=x^2+1\text{ and } g(x)=-3$

And we want to find:

$(g\cdot f)(x)$

This is equivalent to:

$=g(x)\cdot f(x)$

Substitute:

$=(-3)\cdot (x^2+1)$

Distribute:

$=-3x^2-3$

Therefore:

$(g\cdot f)(x)=-3x^2-3$

So, our answer is A.

5 0

3 years ago

Two trains move between two towns. It takes the first train 2 hr 48 min and it takes the second 4 hr 40 min. The rate of the fir

Umnica [9.8K]

Answer:

182 miles.

Step-by-step explanation:

Given:

Two trains move between two towns.

Time taken by first train = 2 hr 48 minutes =

Change minute into hour:

60 minute = 1 hour

1 minute = $\frac{1}{60}$

48 minutes = $\frac{1}{60}\times48=\frac{48}{60} =0.8\ hour$

Time taken by first train in hour = $2+0.8=2.8\ hours$

Time taken by second train = 4 hr 40 minutes

Similarly, 40 minutes = $\frac{40}{60} =0.67\ hour$

Time taken by second train in hour = $4+0.67=4.67\ hours$

The rate of the first train is 26 mph more than that of the second train.

Question asked:

What is the distance between these towns ?

Solution:

Let speed of second train = $x\ miles\ per\ hour$

<u>As the speed of the first train is 26 mph more than that of the second train. </u>

Speed of first train = $26+x\ miles\ per\ hour$

As two trains move between two towns means distance traveled by both train is same.

By using : $Distance=speed\times time$

Distance traveled by first train = Distance traveled by second train

$speed\times time$ =

$(26+x)2.8=x\times4.67$

$26\times2.8+x\times2.8=4.67x\\72.8+2.8x=4.67x\\$

Subtracting both sides by $2.8x$

$72.8=1.87x$

Dividing both sides by 1.87

$x=38.93$

Speed of second train = 38.93 miles per hour

$Distance=speed\times time$

= 38.93 $\times$ 4.67

= 181.80 miles.

Thus, the distance between these towns is 182 miles (nearest whole number).

3 0

4 years ago

-8 - (-15) + 30 equals​

-8 - (-15) + 30 equals