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2 years ago

Help! i dont understand this!

Mathematics

1 answer:

ANTONII [103]2 years ago

8 0

Answer:

C) 3.9425 × 10^-5

Step-by-step explanation:

Okay, first the problem does look really weird, but it looks like a scientific notation question and the answer choices pretty much confirms this. For scientific notation the number is written with two parts, the front part is a number between 1 and 10 (not including 10) so it can be 1.2 or 3.56 or 9.289 and the second part is a 10 raised up to a power. So a whole entire number in scientific notation is something like 9.5 × 10^-2 SO, in your question, there is a weird notation being used which has the front number and the big E and then the exponent part that should be set up on the 10.

Your question:

(9.5×10^-2)times(4.15×10^-4)

in normal numbers is:

0.095 × 0.000415

You can totally use a calculator for this multiplication (it is, in fact just two numbers being multiplied together) Some calculators have an EE button. Or just use lots of parentheses and an exponent button like ^ or "x to the y power" button.

Anyway, your question will yield 3.9425 × 10^-5

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**************************** URGENT NEED OF HELP ****************************

muminat

Answer:

i would say (B) or (C) but ill go with (C)

Step-by-step explanation:

8 0

3 years ago

Solve using elimination. X + 8y = 3 2x – 4y = -14

enot [183]

Answer:

X+8y=3, 2x-4y=-14

Step-by-step explanation:

Since we do not know the values of x or y we have to leave them the way they are because you can't combine x and y

5 0

3 years ago

Carlota has 3/4 ton of mulch she is going to divide evenly among 5 flower beds. How much mulch will each flower bed contain? Ple

Murljashka [212]

The first thing to do is to turn 5 into a fraction.
5 = 5/1

Now it is just a simple fractional division question:
3/4 / 5/1

With fractional division, all you do is switch around the fraction that is on the right and turn the divide sign into a multiplication sign:
3/4 X 1/5

Now you simply multiply the numerators together, and the denominators together:
3 X 1 = 3
4 X 5 = 20

3/20.

Each flower bed will contain 3/20 of a ton of mulch.

5 0

3 years ago

A store receives tomatoes in boxes of 40 tomatoes each. About 4 tomatoes per box cannot be sold due to damage. Write an algebrai

monitta

Answer:

40b - 4b or 36 b

Step-by-step explanation:

No. of tomatoes in each box = 40

No. of box shipped = b

No. of tomatoes in those b box = b*No. of tomatoes in each box = 40b

No. of tomatoes damaged in each box = 4

No. of box shipped = b

No. of tomatoes damaged in those b box = b*No. of tomatoes damaged in each box = 4b

Thus, total no. of tomatoes that can be sold by store = No. of tomatoes in those b box - No. of tomatoes damaged in those b box = 40b - 4b

Algebraic expression to express the no. of tomatoes that can be sold from those b box is

40b - 4b = 4b(10-1) = 4b(9) = 36b (Answer)

3 0

4 years ago

A shipment To a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 ar

riadik2000 [5.3K]

Answer:

630 MP3 players are likely to be defective.

Step-by-step explanation:

Given:

A shipment to a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 are defective.

Now, to find the MP3 players which are likely to be defective.

Let the defective MP3 players be $x.$

Total MP3 players = 4500.

In sample of 50 MP3 players 7 are defective.

Now, setting the proportion:

If, 50 is equivalent to 7.

Then, 4500 is equivalent to $x.$

Now, to solve using cross multiplication method:

$\frac{50}{7} =\frac{4500}{x}$

By cross multiplying we get:

$50x=31500$

Dividing both sides by 50 we get:

$x=630.$

Therefore, 630 MP3 players are likely to be defective.

5 0

3 years ago

Help! i dont understand this!​

Help! i dont understand this!