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Kruka [31]
3 years ago
11

What is 57.42 + 4 + 1.02? Pls help and I need a small simple explanation...

Mathematics
2 answers:
vova2212 [387]3 years ago
6 0

Answer:

62.44

Step-by-step explanation:

Line up the decimals and then add them up like usual, and then place the decimal where it should go. THen you get your answer.

Hope this helped!

siniylev [52]3 years ago
3 0

Answer:

62.44

Step-by-step explanation:

line the decimals up

57.42

<u>+1.02</u>

58.44

now add 4

58.44

<u>+4.00</u>

62.44

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The floor of a hall has an area of 48 dm.The floor is to be tiled by triangular tiles.of sides 20 cm,30 cm and 40 cm. Find the t
vovangra [49]
The triangle is an obtuse triangle. No sides are equal.
convert cm to dm

1 dm = 10 cm

side a: 20 cm ⇒ 20cm * 1dm/10cm = 20dm/10 = 2 dm
side b: 30 cm ⇒ 30cm * 1dm/10cm = 30dm/10 = 3 dm
side c: 40 cm ⇒ 40cm * 1dm/10cm = 40dm/10 = 4 dm

We need to get the area of a triangle, but first we need to solve for its height using Heron's formula

s = (a+b+c)/2 = (2+3+4)/2 = 9/2 = 4.5
<span>Area = </span>√<span>(s(s-a)(s-b)(s-c)
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h3/2 = √4.5(2.5)(1.5)(0.5)
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h = (2.91*2)/3
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A = hb/2 = (1.94*3)/2 = 5.82/2 = 2.91 dm²

48 dm² / 2.91dm² = 16.5 or 17 tiles needed

17 x Rs200 = Rs3,400 is the total cost
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3 years ago
Samantha deposited $100 in a bank account that has earned 5% interest during th his year. Audrey deposited $50 more than Samanth
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3 years ago
Can someone help me with this question me and my friends are fighting over it?
ki77a [65]
Okay so I am not 100% sure but I think it is C. 1/12;

Because if you rearrange all the letters so that W is is the beginning you get 6 different combinations.

Then I multiplied those 6 combinations by 4 because there are 4 letters.

Once I multiplied I got 2/24 because there are 24 possibilities in total, and we are looking for the probability of getting those 2 combinations.

I simplified 2/24 to its lowest form and I got 2/24 = 1/12.

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Luda [366]

Answer:

Just substitue every 't' with -4

Step-by-step explanation:

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g(-4) = 64-8+1

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7 0
3 years ago
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Ascending order...smallest to largest

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