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Cerrena [4.2K]
4 years ago
10

Which counterexample shows that the conjecture "Every parallelogram is also a rectangle" is false?

Mathematics
2 answers:
mafiozo [28]4 years ago
5 0
A parallelogram without four right angles would prove that to be false.
Ivanshal [37]4 years ago
3 0
Yep that'd be false since they are also rectangles
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7 0
4 years ago
Read 2 more answers
Q4) Using Euclid's algorithm, find the HCF of 240 and 228​
Free_Kalibri [48]

\LARGE{ \underline{ \boxed{ \purple{ \rm{Solution : )}}}}}

Euclid's division lemma : Let a and b are two positive integers. There exist unique integers q and r such that

a = bq + r, 0 \leqslant r < b

Or We can write it as,

Dividend = Divisor × Quotient + Remainder

<u>Work</u><u> </u><u>out</u><u>:</u>

Given integers are 240 and 228. Clearly 240 > 228. Applying Euclid's division lemma to 240 and 228,

⇛ 240 = 228 × 1 + 12

Since, the remainder 12 ≠ 0. So, we apply the division dilemma to the division 228 and remainder 12,

⇛ 228 = 12 × 19 + 0

The remainder at this stage is 0. So, the divider at this stage or the remainder at the previous age i.e 12

\large{ \therefore{ \boxed{ \sf{HCF \: of \: 240  \: \& \: 228 = 12}}}}

<u>━━━━━━━━━━━━━━━━━━━━</u>

8 0
3 years ago
What is 45% in a decimal
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Percent is per 100, so the fraction is 45/100.

The decimal is the numerator, but you need to swoop 2 times.

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7 0
4 years ago
Read 2 more answers
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just olya [345]
                       OBAN
                           92
                            |
                            |                                        STANRAER
                          172-------------------------------------112

To read this table you have to draw a vertical from OBAN downward aa horizontal line from the 1st value of STANRAER. The intersection point show the number of miles.
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Cost number of gallons needed x price/ gallon
COST = (172/8) x 0.83
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5 0
3 years ago
Write an equation for the line that Is parallel to y=7x-13 and goes through the point (0, -9)
vekshin1

Answer:

the answer is y = 7x - 9

Step-by-step explanation:

hope this helps

3 0
3 years ago
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