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2 years ago

5.22 write the decimal as a fraction or mixed number in simplest form

Mathematics

1 answer:

Vikentia [17]2 years ago

5 0

Answer:

5 and 11/50

Step-by-step explanation:

5.22 = 261/50 = 5 and 11/50

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-6y+15= -27 what is y?

stealth61 [152]

Answer:

y=7

Step-by-step explanation:

-6y= -27-15

-6y= -42

y=7

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2 years ago

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Manuel até 1/3 crackers. His brother ate 1/4 crackers. There are 5 crackers left. How many crackers were there from he beginning

mrs_skeptik [129]

50 crackers hope this helps

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2 years ago

The sum of the diagonals of a rhombus is 5√2.

Alex

Greetings!
Let ABCD be a rhombus
AC + BD = 5√2 cm

Area of ABCD = Ar△ABD + Ar △BCD
$= \frac{1}{2} \times BD \times AO + \frac{1}{2} \times BD \times OC$
$= \frac{1}{2} BD (AO + OC)$
$\frac{1}{2} BD \times AC$

$So, \frac{ BD \times AC}{2} = 4 \: cm {}^{2}$
$BD \times AC = 8$
$Now, AC + \: BD = 5 \sqrt{2}$

Squaring both sides, we get
$AC {}^{2} + BD {}^{2} + 2 AC.BD =50$
$AC {}^{2} + BD {}^{2} + 2 \times 8 = 50$
$AC {}^{2} + BD {}^{2} = 50 - 16$
$AC {}^{2} + BD {}^{2} = 34$

In △AOB, we have
$OA {}^{2} + OB {}^{2} =AB {}^{2}$
$( \frac{ AC }{2} ) {}^{2} + ( \frac{ BD}{2} ) {}^{2} = AB {}^{2}$
$\frac{ AC {}^{2} } {4} + \frac{ BD {}^{2} }{4} = AB {}^{2}$
$AC {}^{2} + BD {}^{2} = 4 AB {}^{2}$
$34 = 4 AB {}^{2}$

Square rooting both sides
$\sqrt{34} = 2 AB$
$Perimeter = 4 \: AB \\ = 2 \times 2 \: AB \\ = 2 \: \times \sqrt{34 } \\ = 2 \sqrt{34 \: } units$ .

Hope it helps!

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2 years ago

Which expression will give the closest approximation to the square root of 156.

topjm [15]

Answer:

Step-by-step explanation:

the Sq root for 156 HAS to be a # between 12 and 13.

12+ (13-12)/2

12+ 1/2

12.5

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2 years ago

Can you help me please

IRINA_888 [86]

Answer:

find its radii with diameter

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2 years ago

5.22 write the decimal as a fraction or mixed number in simplest form​

5.22 write the decimal as a fraction or mixed number in simplest form