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2 years ago

10

What is the rate of change in the table? X: 0, 1, 2, 3 Y: 3, 6, 9, 12

1 answer:

KengaRu [80]2 years ago

6 0

Answer:

The rate of change is 3.

Step-by-step explanation:

When the y vaues increase, they add 3 three times.

a(x)= $\frac{f(b)-f(a)}{b-a} \\$

a(x)= $\frac{12-9}{3-2}$

And If you use this for all the numbers, the value would be three.

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Marco's painting has an area of 320 square inches. If the width of the painting is 16 inches, what is the length of the length o

Tamiku [17]

If you would like to know what is the length of the painting, you can calculate this using the following steps:

an area = width * length
320 = 16 * length
length = 320 / 16
length = 20 inches

The correct result would be 20 inches.

6 0

2 years ago

Read 2 more answers

A rectangle with sides 11 cm and 9 cm has the same diagonal as a square.

pishuonlain [190]

Answer:

the length will be 9cm because a square has equal sides it not the same as the rectangle

6 0

2 years ago

in a wood there are 420 silver birch trees, 160 oak tees and 300 wild cherry trees. what is the percentage of the oak trees give

elena-14-01-66 [18.8K]

Answer:

18.2%

Step-by-step explanation:

The total number of trees in the wood = 420 + 160 + 300

= 880 trees

∴ The percentage of the oak trees = $\frac{160}{880} * \frac{100}{1}$

= $\frac{2 * 100}{11}$ %

= $\frac{200}{11}$ %

= 18.181818...%

In 1 decimal place = 18.2%

Hope this helps!!

8 0

2 years ago

PLEASE HELP ASAP!!!!!!

Rainbow [258]

Answer:

6/5 units³

Step-by-step explanation:

The volume of the prism is given by the formula

V = Bh

where B is the area of the "base" and h is the height perpendicular to that base. Filling in the given numbers, you have ...

V = (9/5)·(2/3) = 18/15 = 6/5 . . . . units³

7 0

3 years ago

Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?

Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

<em>Robin's Flight</em>

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,30) and (3,45)

substitute in the formula

$m=\frac{45-30}{3-2}$

$m=\frac{15}{1}$

$m=15\frac{m}{sec}$

<em>Cardinal's Flight</em>

$y=10x$

$m=10\frac{m}{sec}$

<em>Blue Jay's Flight</em>

take two points from the graph

(0,0) and (2,20)

substitute in the formula

$m=\frac{20-0}{2-0}$

$m=\frac{20}{2}$

$m=10\frac{m}{sec}$

Compare

The robin flies fastest because its rate is 15 m/s

4 0

2 years ago