$Density \: of \: pyramid \\ \\ = \frac{mass}{volume} \\ \\ = \frac{50}{4 \times 8 \times 10} \\ \\ = \frac{5}{32} \\ \\ = 0.15625 \: gm \: {cm}^{ - 3} \\ \\ \approx \: 0.156 \: gm \: {cm}^{ - 3} \\$

5 0

3 years ago

Find the length of side x I simplest radical form

alekssr [168]

Answer:

Option A

Step-by-step explanation:

By applying Pythagoras theorem in ΔABC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

AC² = AB² + BC²

AC² = 6² + 5²

AC = $\sqrt{61}$

Similarly, by applying Pythagoras theorem in ΔACD,

AD² = AC² + CD²

(10)² = $(\sqrt{61})^2$ + x²

x² = 100- 61

x² = 39

x = √(39)

Option A will be the answer.

7 0

3 years ago

Hi! I know this is not the correct way to ask a question, but may someone explain how to do the Division Property of Equality an

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

So the division property states that if both sides of an equation are equal and whenever you divide both sides of that equation by the same number they should stay equal. Example

12=12 right? so if I divide both 12 and 12 by 3 I should get 3=3

We use this to solve for variable such as x

So new example lets take

5x=25

Since both sides are equal I can divide by the same number and should get an equal number right? So lets divide by 5 on both sides. 5x divided by 5 equals x and 25 divided by 5 equals 5 so my new equation is

x equals 5 or x=5.

If I plug my x=5 back into the equation they should be equal so lets see...

5(5)=25

25=25

And it checks out :)

3 0

3 years ago