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Naya [18.7K]
2 years ago
11

Scientific notation for 7×10^9​

Mathematics
2 answers:
Alex17521 [72]2 years ago
5 0

Answer:

7,000,000,000

Step-by-step explanation:

7×10^9

The number after ten is how many zeros you put.

Black_prince [1.1K]2 years ago
5 0

Answer: 7000000000

Step-by-step explanation: 7x

1000000000

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Question number 1 You are comparing the costs of producing jewelry at two different manufacturers. Company 1 charges $3.25 per p
Assoli18 [71]

The value of x at equal total cost is 266.67

Here, we want to solve the equation to get the x-value that shows the total costs for the two companies are equal

We proceed as follows;

\begin{gathered} 3.25x\text{ + 400 = 2.50x + 600} \\ 3.25x-2.50x\text{ = 600-400} \\  \\ 0.75x\text{ = 200} \\  \\ x\text{ = }\frac{200}{0.75} \\ x\text{ = 266.67} \end{gathered}

4 0
10 months ago
Identify the slope from the points (1,-3) and (4,2) identify the slope for each graph
Aliun [14]

Answer:

First: 1/4

Second: 3/5

Step-by-step explanation:

FIRST:

You can easily solve this problem by creating a slope triangle between the points given.

1 up

———————- = 1/4

4 to the right


SECOND:

To solve for slope with two points, you do y1-y2/x1-x2.

1-4      -3

—— = — = 3/5

-3-2    -5

8 0
3 years ago
What's the probability you roll the same number twice on a regular dice?
jekas [21]
1/6 because the first number that you roll doesn't matter so it depends on the 2nd roll, in which the probability of rolling a specific number is 1/6
4 0
3 years ago
Find the zeros of f(x) =x^3+2x^2-3x
lora16 [44]

Answer: 0, 1, -3

Step-by-step explanation:

f(x) = x^3 +2x^2 -3x

f(x) = x(x^2 +2x-3)

f(x) = x(x-1)(x+3)

to find zeroes, plug into f(x) and solve for each value of x. doing this gives 0, 1, and -3

3 0
3 years ago
If set A contains seven distinct numbers and set B contains three distinct letters, how many elements are in (A U B)?​
Ira Lisetskai [31]
<h3>Answer:  10 elements</h3>

=======================================================

Explanation:

Let's use an example to see why this is

A = {1,2,3,4,5,6,7}

B = {x,y,z}

A U B = {1,2,3,4,5,6,7, x,y,z}

We simply glue the two sets together to form one single big set. Because sets A and B have no overlap, this means we dont have to worry about tossing out duplicates (since there aren't any).

There are 7 items in set A, and 3 items in set B.

Therefore, we have 7+3 = <u>10 items in set A U B</u>

The symbol U refers to the set union operator.

If you wanted to make a Venn Diagram, then you'd have two circles overlapping. In circle A will be the numbers 1 through 7. These values are not in the overlapped region. For circle B, the letters x,y,z are inside but not in the overlapped region. The overlapped region remains empty.

The set A U B talks about the collection of everything mentioned. It's the set of stuff in set A or in set B or in both sets.

-----------------

If you want a formula to write down on a notecard or reference sheet, then it would be

n(A U B) = n(A)+n(B)

where A and B are mutually exclusive, aka disjoint. This means they have nothing in the overlapped region

4 0
2 years ago
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