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Sonja [21]
3 years ago
15

A really simple question that I just don't understand.

Mathematics
2 answers:
ollegr [7]3 years ago
5 0
It is a right-angle triangle because one of the angles is 90 degrees.
Scrat [10]3 years ago
3 0
The key is that Pythagoras' Theorem works in both directions.

-- IF it's a right triangle, THEN [ A² + B² = C² ].
and
-- IF [ A² + B² = C² ], THEN it's a right triangle.

Look at the triangle on the sheet.

Left side:
length of the side is 0.75
square of the left side = (0.75)² = 0.5625

Bottom side:
length of the side = 1
square of the bottom side = (1)² = 1

Sum of the squares = (0.5625 + 1) = 1.5625

Square root of that sum = √1.5625 = 1.25

Is that the length of the third side ?  Yes !
Then [ A² + B² = C² ].
Then it's a right triangle.
You proved it.
yay



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Step-by-step explanation:

find the value of f(-4) first

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3 years ago
The ballpark made a total of $15,000 from ticket sales at Wednesday's game. The ballpark charges $20 for each adult ticket and $
kvasek [131]
Assume that the number of adult tickets is a and the number of child tickets is c.

We are given that the adult ticket is sold for 20$, the child ticket is sold for 10$ and that the total is $15,000. This means that:
20a + 10c = 15,000 ..........> equation I

We are also given that number of child tickets is 3 times that of adult's. This means that:
c = 3a .........> equation II

Substitute with equation II in equation I to get a as follows:
20a + 10c = 15,000
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write an expression for the sequence of operations described below. add s to t, add the result to r, then raise what you have to
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Answer:

(s+t+r)^7

Step-by-step explanation:

<u>Sequential Operations </u>

Mathematical operations can be done in sequence or in batches if they are of the same type. For example, we can add many terms in one single operation, but we cannot add and multiply in one go, because there are priorities when dealing with products and sums. Same happens with powers.

In our problem we are required to perform a sequence of operations like follows

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s+t

Add the result to r

s+t+r

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\boxed{(s+t+r)^7}

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3 years ago
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