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3 years ago

0.0025 cm << in scientific notation

Mathematics

1 answer:

Leno4ka [110]3 years ago

7 0

2.5 X 10^-3 is the scientific notation for 0.0025

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5?10 5 5, dot, 10, start superscript, 5, end superscript is how many times as large as 1\cdot10^51?10 5 1, dot, 10, start supers

max2010maxim [7]

Answer:

5 times as large

Step-by-step explanation:

The ratio of the two numbers tells you how many times as large one is as the other:

$\dfrac{5\cdot 10^5}{1\cdot 10^5}=\dfrac{5}{1}\cdot\dfrac{10^5}{10^5}=5$

4 0

3 years ago

Find the average rate of change of f(x) = 4x² – 3 from 3 to 9.

Lina20 [59]

Answer:

Step-by-step explanation:

Given:

$f(x) = 4x^2 - 3$

Required:

Average range of change from 3 to 9

SOLUTION:

Step 1:

Find f(3) and f(9):

To find f(3), replace x with 3 in the given function

$f(3) = 4(3)^2 - 3$

$f(3) = 4(9) - 3$

$f(3) = 36 - 3$

$f(3) = 33$

To find f(9), replace x with 9 in the given function

$f(9) = 4(9)^2 - 3$

$f(9) = 4(81) - 3$

$f(9) = 324 - 3$

$f(9) = 321$

Average rate of change = $\frac{f(b) - f(a)}{b - a}$

Where,

$a = 3, f(a) = 33$

$b = 9, f(b) = 321$

Plug in the values into the formula for average rate of change.

$= \frac{321 - 33}{9 - 3}$

$= \frac{288}{6}$

$= 44$

Average rate of change = 44

3 0

3 years ago

The dance team traveled to a competition and traveled in two vans. The first van transported 2 adults and 5 students and cost $7

Shtirlitz [24]

Answer: $9

Step-by-step explanation:

Let the cost for adults be a

Let the cost for students be b.

The first van transported 2 adults and 5 students and cost $77. This will be:

2a + 5b = $77

The second van transported 2 adults and 7 students and cost $95. This will be:

2a + 7b = $95

2a + 5b = 77 ...... equation i

2a + 7b = 95 ........ equation ii

Subtract equation ii from I

-2b = -18

b = 18/2

b = $9

An student cost $9

Put the value of b into equation i

2a + 5b = 77

2a + 5(9) = 77

2a + 45 = 77

2a = 77 - 45

2a = 32

a = 32/2

a = 16

An adult costs $16

5 0

3 years ago

Apply The axes in the coordinate grid at the right represent the walls of a bedroom. One corner of the room is at the origin. Wh

Novosadov [1.4K]

Answer: 11.2 because I know trust me. I did a worksheet with this same question and got 11.2 and it was correct.

5 0

3 years ago

How do i show my work for 18 divided by 16.4?<br><br> plz help

frosja888 [35]

It will just keep going on as a decimal so you do not need to keep going, three spaces after the decimal should be an acceptable answer.

6 0

4 years ago

Read 2 more answers