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Ne4ueva [31]
3 years ago
12

These two quadrilaterals are similar. True False

Mathematics
1 answer:
Nady [450]3 years ago
8 0
False. This is easily recognised by the ratio of the two sides compared to each other:

3.5 : 5

3.5 divide 5 gives 0.7

2 : 2.5

2 divide 2.5 gives 0.8

Hope this helped!
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What values for x make the following equation true? Select all that are true. <br>2x2 - 5x – 3 = 0​
Mariulka [41]

Answer:

60

60 h

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5 0
3 years ago
Simplify this expression.<br> 20.25 – 9 + 11<br> о<br> 1<br> 4<br> 0 18.75<br> 0<br> 21?<br> 0 40.75
Greeley [361]

Answer:

21\frac{3}{4}

Step-by-step explanation:

Step 1: Add the numbers.

20.25 can also be expressed as 20\frac{1}{4}, because \frac{2025}{100} = \frac{81}{4} = 20\frac{1}{4}. So if we add 20\frac{1}{4} and 11, we would get 31\frac{1}{4}

Step 2: Solve

31\frac{1}{4} -9\frac{1}{2}

  • Subtract the whole numbers

31-9=21

  • Combine the fractions

This means addition. Also, since our denominators are not the same value, we have to find the LCM (Least Common Denominator): What do 2 and 4 have in common that they can divide themselves by? 4. We know this because 2 divided by 4 is 2, and 4 divided by 4 is 1, so they can both divide themselves by 4.

\frac{5}{4}-\frac{1}{2}

LCM

\frac{5}{4}-\frac{2}{4} =\frac{3}{4}

Therefore, the simplified expression to this is 21\frac{3}{4}.

Learn more: brainly.com/question/403991

8 0
2 years ago
A bank manager is interested in the average length of time that customers are willing to wait in line before they give up and le
Fynjy0 [20]

Answer: The average length of time that the 25 customers waited before leaving the bank.   <u> e. Statistic</u>

The list of times for the 25 customers who left the bank.  <u> f.Data </u>

All of the bank's customers                                         <u> d. Population</u>

The 25 customers that the manager observed leave.         <u> c. Sample</u>

The length of time a customer waits before leaving the bank.  a. <u>Variable.</u>

The average length of time that all customers will wait before leaving the bank <u>a. Parameter</u>

Step-by-step explanation:

A data is a list of observations.

In statistics, a variable is an attribute that defines  a person, place, thing, or thought.

A large group that have similar individuals as per the researcher's point of view is known as population, where its subset is known as sample.

The measure of certain characteristic in population is known as parameter, where for sample it is known as statistic.

8 0
3 years ago
Math word problem. What's the equation I use?
UkoKoshka [18]
You would have to find the proportionality of the two.  If his shadow is 3 feet long, and the tree's shadow is 9 that means it is proportioned by 3. So the height of the tree would be 15.
3 0
3 years ago
Calculate the average rate of change for the given function, from x = 2 to x = 7.
Marina86 [1]
\bf slope = m = \cfrac{rise}{run} \implies &#10;\cfrac{ f(x_2) - f(x_1)}{ x_2 - x_1}\impliedby &#10;\begin{array}{llll}&#10;average~rate\\&#10;of~change&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;&#10;\begin{array}{ccll}&#10;x&f(x)\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;-2&0\\2&15\\7&30&#10;\end{array}&#10;\qquad &#10;\begin{cases}&#10;x_1=2\\&#10;x_2=7&#10;\end{cases}\implies \cfrac{f(7)-f(2)}{7-2}\implies \cfrac{30-15}{5}&#10;\\\\\\&#10;\cfrac{15}{5}\implies 3
5 0
3 years ago
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