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jeka57 [31]
3 years ago
7

What is linear expansivity?

Mathematics
1 answer:
katrin [286]3 years ago
4 0
Its a type of thermal expansion and described by fractions that represents the fractional increase length of a thin beam of a material exposed to its temperature increase of one degree celcious,"
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Three of the choices are ways to express 0.50. Which is NOT?
Ganezh [65]

Option B

5 hundredths is not the way to express 0.50

<h3><u>Solution:</u></h3>

Given that Three of the choices are ways to express 0.50

To find: wrong option

Let us first write 0.50 in different ways

<h3><em><u>To convert a Decimal to a Fraction follow these steps: </u></em></h3>

Step 1: Write down the decimal divided by 1, like this: decimal 1.

Step 2: Multiply both top and bottom by 10 for every number after the decimal point. ...

Step 3: Simplify (or reduce) the fraction.

\rightarrow 0.50 = \frac{0.50 \times 100}{100} = \frac{50}{100}

\frac{50}{100} means 50 hundredths

<h3>Therefore option D is correct</h3>

On simplifying \frac{50}{100} we can write,

\rightarrow \frac{50}{100} = \frac{5}{10} = \frac{1}{2}

\frac{1}{2} means one half

<h3>Therefore option A (one half) is correct</h3>

Similarly, \frac{5}{10} means 5 tenths

<h3>Therefore Option C is also correct</h3>

Thus the wrong option is B

<em><u>Justification:</u></em>

5 hundredths can be written as:

\frac{5}{100} = 0.05

Therefore option B is wrong

5 0
2 years ago
Johny can type a 600 word essay in just 8 minutes how long will it take to type a 2,100 word essay?
NeTakaya
It would take Johny 28 mins to type a 2,100 word essay.
5 0
3 years ago
Read 2 more answers
A scale drawing of jimmy's living room is shown below width =4cm length =6cm
Semenov [28]
Do you need the area of the floor plan? If so here you go:

6*4 = 24, so 24 cm.
7 0
2 years ago
321.5 is between ________ and ________ on the number line.
Lena [83]

321.5 is between ___321_____ and ___322_____ on the number line.

Answer

B

321 and 322

8 0
3 years ago
The point (5, -2) is rotated 90° about the origin. Its image is
Nadya [2.5K]

Answer:

(2,5)

Step-by-step explanation:

The rule to 90 degrees about the origin is (x,y) to (-y,x). You basically switch the values of y and x but remember the value of y is negative. The value of y is -2 so -2 is now 2 since the rule changed the sign (-2×-y=2) and 5 isnt affected except it is the x value. Just know that since they r switched, x is now 2 and y is 5 when rotated 90 degrees about the origin.

8 0
3 years ago
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