All categories

3 years ago

Can 4,9, 15 represent the lengths of the sides of a triangle?

Mathematics

2 answers:

REY [17]3 years ago

6 0

Answer:

Step-by-step explanation:

By the converse of Pythagoras' identity.

If the longest side squared equals the sum of the squares of the other 2 sides then triangle is right.

longest side = 15

15² = 225

4² + 9² = 16 + 81 = 97 ≠ 225

Thus sides do not represent a right triangle.

Gwar [14]3 years ago

4 0

Answer:

Step-by-step explanation:

4,4,5 and 12,7,7 are isosceles triangles because they have two equal sides . 15,15,15 is an equilateral triangle -it has three equal sides

You might be interested in

Can someone help pls ty

irakobra [83]

12 bottles will be needed for a group that size

5 0

2 years ago

Read 2 more answers

Write a rule for the translation.

kupik [55]

Answer:

Option B. ( x + 2, y - 1 ) is the correct answer.

Step-by-step explanation:

First of all, we have to write the coordinates of vertices of both triangles and then compare the respective vertices to find the rule,

So the vertices are:

A(-4,2) , B(-3,4) and C(-1,1)

A'(-2,1), B'(-1,3) and C'(1,0)

By comparing respective vertices we can observe that

A(-4,2) => (x+2,y-1) => A'(-2,1)

B(-3,4) => (x+2,y-1) => B'(-1,3)

C(-1,1) => (x+2,y-1) => C'(1,0)

Hence,

Option B. ( x + 2, y - 1 ) is the correct answer.

5 0

3 years ago

Tim wants to build a rectangular fence around his yard. He has 42 feet of fencing. If he wants the length to be twice the width.

gtnhenbr [62]

Answer: The largest he can possibly build is x = 14

Step-by-step explanation:

8 0

1 year ago

Kasha drank 1 quart of water in 2 minutes. How many cups per second did she average?

marysya [2.9K]

She drank 1/30th (as a decimal 0.03 repeating) cups per minute.

6 0

3 years ago

Simplify using PEMDAS<br>(3X + 2x)(3+4)

katrin [286]

Answer:

$5x*7$

Step-by-step explanation:

We know that PEMDAS is a shortened acronym for the order in which we do operations in an expression, which is as following in the correct order:

Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction.

Now your question asks you to solve the expression using PEMDAS, however that is what we would do regardless as <em>in algebra </em>PEMDAS is always in effect.

Lets break it down! $(3x+2x)*(3+4)$

Simple enough! We just do the respective operations inside the parenthesis first (as per pemdas), which after completion yields us

$5x*7$

Since x is undefined and the expression is completely simplified, there is nothing more we can do.

8 0

3 years ago