3 years ago

Area of a right angled triangle whose sides containing the right angle are 12 dm and 5 dm is _

Mathematics

1 answer:

valkas [14]3 years ago

4 0

Answer:

60 cm

Step-by-step explanation: how I got your answer is by multiplying 5 times 12

You might be interested in

In the definition of fractional numbers, b ≠ 0. Why?

Nataliya [291]

I have no idea. Just commenting to get the answer when someone else knows it

6 0

3 years ago

Solve the following new equation

mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

$x = \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) } }{2(1)} \\ x = \frac{ - 3± \sqrt{9 + 28} }{2} \\ \\ x = \frac{ -3 ± \sqrt{37} }{2} \\ \\ x = \frac{ - 3 + \sqrt{37} }{2} \: \: \: \: \: or \: \: \: x = \frac{ - 3 - \sqrt{37} }{2} \\ \\ x = 1.54 \: \: \: or \: \: x = - 4.54$