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SSSSS [86.1K]
3 years ago
12

Calculate the area of a right-angled triangle of sides 30 cm, 40 cm, 50 cm.

Mathematics
1 answer:
grin007 [14]3 years ago
5 0
The correct answer is 60cm^2 because the area of a triangle is half base*height -> 30/2*40
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Using only four 4's and any operational sign find the value of 8
torisob [31]

Answer:

The answer is 4 + 4 + 4 - 4 = 8

Step-by-step explanation:

The four fours problem is one of the problems given in the book "The Man Who Calculated" by Malba Tahan, a Brazilian-born professor of mathematical sciences.

There are many complicated problems in this book made with the intention of using logic to find a value.

The 4 fours problem is based on using these numbers and using any operation to result in the numbers 1 through 10.

4 0
3 years ago
Subtract: 8 3/8 - 3 1/4<br><br> Answers: <br> A: 5 1/8<br> B: 5 5/8<br> C: 5 1/4<br> D: 5 1/2
Flura [38]
I believe the answer is D
6 0
2 years ago
Brainliest + 30 points
Evgesh-ka [11]

Answer:

10

Step-by-step explanation:

Plug the numbers into the distance formula:

d = \sqrt{(x2 - x1)^2 + (y2-y1)^2} \\

d = \sqrt{(11 - 5)^2 + (16-8)^2} \\

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5 0
3 years ago
Read 2 more answers
Stephanie walks 2/5 miles in 1/4 our what is Stephanie speed in miles per hour
aivan3 [116]
2÷5=0.4
1÷4=0.25
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4 0
3 years ago
Read 2 more answers
If someone could help with this one 2 it would be greatly appreciated
LUCKY_DIMON [66]

Given recursive formula is

f(n) = 22 * f(n - 1)

Where first term : f(1) = 10

And we need to find the first five terms of this sequence. So , let's find the second term by plug in n = 2 in the above formula. Therefore,

f (2) = 2.2 * f ( 2 -1)

= 2.2 * f(1)

= 2.2 * 10

= 22

So second term is 22.

Similarly plug in 3 for n to get the third term. Hence,

f(3) = 2.2 * f(3 -1) = 2.2 * f(2) = 2.2 * 22= 48.4

f(4) = 2.2 *f( 4 -1) = 2.2 * f(3) = 2.2* 48.4 = 106.48

f(5) = 2.2* f(5-1)= 2.2 * f(4) = 2.2 * 106.48 = 234.256

So, the first five terms are 10, 22, 48.4, 106.48 and 234.256.

Hope this helps you!

3 0
3 years ago
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