2 years ago

Find the exact length of the third side. 75 21

1 answer:

7 0

Bu using Pythagoras theorem
(x^2)+(21)^2=(75)^2
Therefore. 5625-441=(x)^2
X^2=5184
Therefore x=72
Third side length=72 units

You might be interested in

Add (3+2i)+(-5+6i) A) -8+8i B) -8-4i C) -2+8i D) -2+4i

balandron [24]

The answer it b your welcome

6 0

2 years ago

Read 2 more answers

Maths Share £72 in the ratio 2:7

avanturin [10]

2+7= 9
72 / 9 = 8
8 * 2 = 16
8 * 7 = 56
16:56

Key:
* = times
/ = divide

5 0

2 years ago

Simply the expression below (10-3i)(2-5i)

scoundrel [369]

Answer:

7i and 3i

hope this helps <33

8 0

2 years ago

Read 2 more answers

HELP I CANT DO THIS-

Vera_Pavlovna [14]

1. C. Rectangle
2. F. 160
3. D. Triangular prism
4. H. 30 boxes
5. C. Equilateral Triangle

3 0

2 years ago

Given: the function defined by f(x)=3x^2-4 Which statement is true? 1. f(0) = 0 2. f(-2) = f(2) 3. f(5)+ f(2) = f(7) 4. f(5) x f

sergeinik [125]

$f(x)=3x^2-4 \\ \Downarrow \\ f(0)=3 \times 0^2-4=0-4=-4 \\ -4 \not= 0 \\ f(0) \not= 0 \\
\hbox{statement 1 is false} \\ \\
f(-2)=3 \times (-2)^2-4 =3 \times 4-4=12-4=8 \\
f(2)=3 \times 2^2-4=3 \times 4-4=12-4=8 \\ 8=8
\\ f(-2)=f(2) \\
\hbox{statement 2 is true}$

$f(5)=3 \times 5^2-4=3 \times 25-4=75-4=71 \\ f(2)=8 \\
f(7)=3 \times 7^2-4=3 \times 49-4=147-4=143 \\
71+8 \not= 143 \\
f(5)+f(2) \not= f(7) \\ \hbox{statement 3 is false} \\ \\
f(5)=71 \\ f(2)=8 \\ f(10)=3 \times 10^2-4=3 \times 100-4=300-4=296 \\
71 \times 8 \not= 296 \\
f(5) \times f(2) \not= f(10) \\
\hbox{statement 4 is false}$

Stamement 2. f(-2)=f(2) is true.

3 0

2 years ago