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ladessa [460]
3 years ago
13

Lena deposits and withdraws money from a bank account. This table shows her transactions for March. Week 1= deposit $300 - Week

2= withdraw $50 - Week 3= withdraw $75 - Week 4= deposit $225. Write an addition expression to describe her transactions. Find the sum and explain its meaning.
Mathematics
2 answers:
Klio2033 [76]3 years ago
8 0

Answer:

A. 300 + (-50) + (-75) + 225

B. The sum is $400.00

The sum means Lena has $400.00 in her bank account.

Step-by-step explanation:

Artemon [7]3 years ago
4 0
300-50=250
250-75=175
175+225=400$
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What is the process of comparing data with a set of rules or values to determine if the data meets certain criteria
Airida [17]

Answer:

Validation

Step-by-step explanation: Validation is a term used to describe the processes involved when we compare a set of values and observations against a set standard or rules to ensure that they meet certain expectations or criteria.

Validation is meant to prove that something, a data set etc are acceptable based on known rules, the rules or standards which is used to evaluate what can be described as valid.

3 0
3 years ago
Cannon balls for an antique cannon are stacked next to it in four layers to form a square pyramid. How many cannon balls are in
labwork [276]
The amount of balls in a given layer can be found by squaring the layer it is in

4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16

add them up
1+4+9+16=30

30 in that pyramid
7 0
3 years ago
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Oliga [24]

<u>To find the area of a complex shape</u>:

 ⇒ must split into simpler shapes

  • a rectangle of <u>8m by 7m</u>
  • a rectangle of <u>2m by 8 m</u>

<u>Now let's find</u>:

  • Area of a rectangle of <u>8m by 7m</u>

               Area=8*7=56m^2

  • Area of a rectangle of <u>2m by 8m</u>

               Area = 2 * 8 = 16m^2

<u>Total Area</u> = 56 + 16 = <u>72 m²</u>

<u>Answer: 72 m²</u>

Hope that helps!

6 0
2 years ago
Does this set of ordered pairs form a function?
zhenek [66]

Considering that each input is related to only one output, the correct option regarding whether the relation is a function is:

A. yes.

<h3>When does a relation represent a function?</h3>

A relation represents a function when each value of the input is mapped to only one value of the output.

For this problem, we have that:

  • The input is a number.
  • The output is an activity.

There are no repeated inputs, hence the relation is a function and option A is correct.

More can be learned about relations and functions at brainly.com/question/12463448

#SPJ1

3 0
2 years ago
Please answer this in two minutes
Anna35 [415]

Answer:

Tan(x) = 1/\sqrt{3}

We know that Tan 30 = 1/\sqrt{3}

Therefore, x = 30 degrees

7 0
3 years ago
Read 2 more answers
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