All categories

3 years ago

Find the missing side of each triangle. Round your answers to the nearest tenth if necessary.

Mathematics

2 answers:

statuscvo [17]3 years ago

8 0

Answer:

A. 9 mi.

Step-by-step explanation:

Here, use the Pythagorean Theorem, but leave "a" as it is.

a² + b² = c²

a² + 12² = 15²

a² + 144 = 225

a² = 225 - 144

a² = 81

a = √81

a = 9

The missing side is 9 miles long.

Aneli [31]3 years ago

6 0

Answer:

9 miles

Step-by-step explanation:

use Pythagoras theorem

15 squared - 12 squared = 81

square root of 81 is 9

You might be interested in

Solve the literal equation<br><br> Solve ax-y/b = c for y

rjkz [21]

Y=-ax-c/y
I did this really fast in my head so check it first

8 0

3 years ago

What is the product (-6a^3b+2ab^2

Irina-Kira [14]

you have to apply this formula (a+b)(c-d)=ac-ad+bc-bd

-6a^3*b*5a^2+6a^3b*2ab+6a^3b*b+2ab^2*5a^2-2ab^2*2ab-2ab^2*b=

-30a^5*b+12a^4b^2+6a^3b^2+10a^3b^2-4a^2b^3-2ab^3

4 0

3 years ago

Which of the following is perfect square trinomial. Ive asked 4 times. Please Help. Will give brainlilest

Nutka1998 [239]

Answer:

Step-by-step explanation:

a perfect square trinomial is

$a^2x^2\pm2(ab)xy+b^2y^2$

factorized is

$(ax\pm by)^2$

so as you can see option A and B can't be, because they have -49y^2 and it has to be plus

so the other options are C and D

in the trinomial a=4 and b=\pm 7

the roots of a^2 and b^2

$\pm2abxy=\pm2(4)(7)xy\\\\=\pm56xy$

so it's option d with b=-7

$16x^2-56xy+49y^2$

6 0

3 years ago

After how many years are the salaries offered by company a and company b the same

12345 [234]

24000 + 3000x = 30000 + 2400x
3000x - 2400x = 30,000 - 24,000
600x = 6000
x = 6000/600
x = 10 years

6 0

2 years ago

Find the hcf of 52 and 117 and express it in the form of 52x + 117y..<br>please helppp

harina [27]

Step by step explanation:

Hope this helps

3 0

3 years ago