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Musya8 [376]
4 years ago
7

Write the following numbers used in these statements in scientific notation. (Note: Some of these numbers have been rounded.)

Mathematics
1 answer:
VARVARA [1.3K]4 years ago
3 0

Answer:

So 0.0000214 can be written as 2.14\times 10^{-9}cubic\ yard                

Step-by-step explanation:

We have given one cubic inch = 0.0000214 cubic yard

We have to convert this into scientific notation

We know that 0.0000214 can be written as \frac{214}{10000000}

We know that \frac{1}{10} can be written as 10^{-1}

So \frac{1}{10000000} can be written as 10^{-7}

So \frac{214}{10000000} can be written as 214\times 10^{-7}=2.14\times 10^{-9}cubic\ yard

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Can someone please help me put ???
tester [92]

Answer:

×=-5 y=3

Step-by-step explanation:

Because the x intercept is the point where the line has crossed the x axis and the y intercept is the Pont where the line crosses the y axis

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3 years ago
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Mateo has been studying after school while preparing for a test retake. His work paid off ! His score on the retake was a 94. Th
Feliz [49]

Answer:

28%

Step-by-step explanation:

We know that 100 percent is total. Mateo first scored 68/100, then a retake got his score up to 94/100.

First, subtract the two numbers

94 - 68 = 26

Put 26 over 94 to make this 26/94

Divide to get 0.28 (simplified and rounded)

So the increase was 28%

7 0
3 years ago
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A biology test is worth 100 points and has 36 questions.
Ad libitum [116K]

Answer:

(a) 7 essays and 29 multiple questions

(b) Your friend is incorrect

Step-by-step explanation:

Represent multiple choice with M and essay with E.

So:

M + E= 36 --- Number of questions

2M + 6E = 100 --- Points

Solving (a): Number of question of each type.

Make E the subject of formula in M + E= 36

E = 36 - M

Substitute 36 - M for E in 2M + 6E = 100

2M + 6(36 - M) = 100

2M + 216 - 6M = 100

Collect Like Terms

2M - 6M = 100 - 216

-4M = - 116

Divide both sides by -4

M = \frac{-116}{-4}

M = 29

Substitute 29 for M in E = 36 - M

E = 36 - 29

E = 7

Solving (b): Can the multiple questions worth 4 points each?

It is not possible.

See explanation.

If multiple question worth 4 points each, then

2M + 6E = 100 would be:

4M + xE = 100

Where x represents the number of points for essay questions.

Substitute 7 for E and 29 for M.

4 * 29 + x * 7 = 100

116 + 7x = 100

Subtract 116 from both sides

116-116 + 7x = 100 -116

7x = 100-116

7x = -16

Make x the subject

x = -\frac{16}{7}

Since the essay question can not have worth negative points.

Then, it is impossible to have the multiple questions worth 4 points

<em>Your friend is incorrect.</em>

6 0
3 years ago
Which question can be represented by the equation ?
bekas [8.4K]

Answer:

Galapagos

Step-by-step explanation:

todo lo que tienes que hacer es hacer la cosa

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3 years ago
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Complete the table for the given rule.<br> Rulet y =
siniylev [52]

At x = 8, y = 4

At x = 14, y = 7

At y = 3, x = 6

Solution:

Given rule:

$y=\frac{x}{2}

At x = 8,

$y=\frac{8}{2}=4

Hence at x = 8, y = 4.

At x = 14.

$y=\frac{14}{2}=7

Hence at x = 14, y = 7.

At y = 3

$3=\frac{x}{2}

Multiply by 2 on both sides.

$3\times2=\frac{x}{2} \times2

6 =x

Hence at y = 3, x = 6.

The image of the table is attached below.

3 0
4 years ago
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