3 years ago

Write 23 in scientific notation

Mathematics

2 answers:

Zinaida [17]3 years ago

6 0

You answer would be 2.3 x 10

Temka [501]3 years ago

5 0

2.3 x 10 to the power of 1

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mrs_skeptik [129]

Answer:

POSSIBLY 2

Step-by-step explanation: wasnt the best at math but i hope u do good

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3 years ago

A floor is made up of 20 triangular tiles, each with sides 40 cm, 24 cm and 32 cm. Find the cost of polishing the floor at the r

pochemuha

Answer:

$15360\,\,rupees$

Step-by-step explanation:

Let sides of the triangle be $a,b,c$

$a=40\,,\,b=24\,,\,c=32$

Semi-perimeter (s) = $\frac{a+b+c}{2}$

$=\frac{40+24+32}{2}\\ =\frac{96}{2}\\=48$

Area of one tile $=\sqrt{s(s-a)(s-b)(s-c)}$

$=\sqrt{48(48-40)(48-24)(48-32)}\\ =\sqrt{48(8)(24)(16)}\\ =\sqrt{147456} \\=384\,\,cm^2$

So,

Area of 20 tiles $=20(384)=7680\,\,cm^2$

Cost of polishing the floor at the rate of 2 rupees per sq.cm = $7680(2)=15360\,\,rupees$

7 0

3 years ago

Please help with this!!

maw [93]

Answer:

gcf=2

12-2=4(3-1)

hope this is right!

8 0

2 years ago

Need help answer this

Marianna [84]

Answer:

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2 years ago

Find the gradient of this line. Use gradient = rise/run

Marysya12 [62]

Step-by-step explanation:

the gradient of the line = 2 units/ 3 units = 2/3

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2 years ago