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yuradex [85]
2 years ago
7

(25 POINTS) How do I structure this properly? I don't understand the way they are wanting me to do this, but I got the right ans

wer which is 0.61 * 10^3... Please answer with the proper answer and step..1.1 *10^3-4.9*10^2

Mathematics
2 answers:
sergij07 [2.7K]2 years ago
8 0

See the attached picture for solution and steps.

pickupchik [31]2 years ago
7 0

Answer:

1.1\times 10^3-4.9\times 10^2=6.1\cdot 10^2

Step-by-step explanation:

Given : Expression  1.1\times 10^3-4.9\times 10^2

To find : Arrange the steps in correct order to perform this subtraction problem ?

Solution :

Step 1 - Write the expression,

1.1\times 10^3-4.9\times 10^2

Step 2 - Multiply and divide by 10,

1.1\times 10^3-4.9\times \frac{10}{10}\times 10^2  

Step 3 - Solve the exponent,

1.1\times 10^3-0.49\times 10^3    

Step 4 - Taking common term,

(1.1-0.49)\cdot 10^3    

Step 5 - Subtract the bracket,

0.61\cdot 10^3  

Step 6 - Multiply and divide by 10 to convert into scientific form,

\frac{10}{10}\cdot 0.61\cdot 10^3

Step 7 - Write in proper form,

6.1\cdot 10^2

Therefore, 1.1\times 10^3-4.9\times 10^2=6.1\cdot 10^2

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The cost of 5 gallons of ice cream has a variance of 64 with a mean of 34 dollars during the summer. What is the probability tha
andriy [413]

Answer:

Probability[(X - μ) < 1.1] = 0.6046

Step-by-step explanation:

Given:

σ² = 64

Mean μ = 34

Find:

Probability[(X - μ) < 1.1]

Computation:

Standard deviation σ = √σ²

Standard deviation σ = √64

Standard deviation σ = 8

Probability[(X - μ) < 1.1] = Probability[-1.1 < (X - μ) < 1.1]

Probability[(X - μ) < 1.1] = Probability[-1.1/(8/√38) < (X - μ) < 1.1/(8/√38)]

Using z table

Probability[(X - μ) < 1.1] = 0.6046

7 0
2 years ago
164 is the quotient of g and 320
Aneli [31]

Answer:

g=4480

Step-by-step explanation:

4480 /320 = 164

7 0
3 years ago
The average house price in London in 2017 was £474902
yulyashka [42]

The percentage change in house prices between 2017 and 2018 is -1.13%.

Percentage can be described as a fraction of a number expressed as a number out of hundred. The sign used to represent percentages is %.

In order to determine the percentage change in average house price, the difference between average housing pricing in 2018 and 2017 would be divided by the average house price in 2017 and the result would be multiplied by 100.

Percentage change = [(£469538 -  £474902) /  £474902] x 100 = -1.13%

To learn more about percentages, please check: brainly.com/question/25764815

5 0
2 years ago
What has she done wrong?
Strike441 [17]

Answer:

see explanation

Step-by-step explanation:

Her error is in squaring (2y)²

She has (2y)² = 2y²

when it should be 2y × 2y = 4y²

Then

(2y)² = 6² + 8²

4y² = 36 + 64

4y² = 100 ( divide both sides by 4 )

y² = 25 ( take square root of both sides )

y = \sqrt{25} = 5

8 0
2 years ago
What value of "a" makes the system 3x-y=17 and ax+y=-7 have no solution?
Norma-Jean [14]

Answer:

y=-7-ax

3x-(-7-ax)=17

3x+7+ax=17

3x+ax=10

x(3+a)=10

x=10,3+a=10 a=10-3 a=7

5 0
3 years ago
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