I'll explain it simply for you
1st question
Of course you know phythagoras theorm
You even wrote it up there
It states that the sum of the square of the two sides of an equilateral triangle is equal to the square of the hypotenuse

Where C is the hypotenuse
*NOTE* :
HYPOTENUSE is the greatest side in a triangle!!
And that's where your mistake is!
So you should take the greatest side as C
So in Q3. 7, 24 and 26 are the given numbers
You'll make the smaller two numbers a and b and the greatest number C
Using the Formula you'll solve the left side first which is

Then the right side which is

And if both are equal then it is a right triangle otherwise it isn't!
Let
a=7
b=24
c=26
a^2 + b^2
7^2 + 24^2
49 + 576 = 625
GREAT, Now the right side
26^2 = 676
Since they aren't equal it isn't a right angled triangle...
Then let
a=7.5
b=10
c=12.5
7.5^2 + 10^2
= 56.25 + 100
= 156.25
12.5^2 = 156.25
They are EQUAL
Therefore it is a right triangle too
Hopefully I helped
The total amount of her purchase before tax was added is; $52.46
<h3>How to calculate discounted amount?</h3>
We are told that the percentage sales tax she paid on her purchase was 8.75% which translated to an amount of $4.59.
Now, let the amount of her purchase be x. Thus;
8.75% * x = $4.59
x = 4.59 * 100/8.75
x ≈ $52.46
Read more about Discounted amount at; brainly.com/question/7459025
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Answer:
50
Step-by-step explanation:
The total is 200 and 25% are juniors so u multiply 200 by 25%
Hope this helps
Correct me if this is wrong
Answer:
24a
Step-by-step explanation:
Answer:
4 or FISH
Step-by-step explanation: