All categories

3 years ago

Find the product (-5sqrt3)(8sqrt5)

Mathematics

1 answer:

Vika [28.1K]3 years ago

5 0

-5√3 · 8√5 = -5 · √3 · 8 · √5 = -5 · 8 · √3 · √5 = -40√15

You might be interested in

PLEASEEEE HELPPPP -1+(-5) =

valentina_108 [34]

Answer:

-6

Step-by-step explanation:

-1+(-5)

You are moving down the numberline, then subtracting again because of the negative sign. -(1+5) is how I like to think of it.

So, 1+5=6, and you add the negative sign. -1+(-5)=-6.

6 0

2 years ago

Determine what type of decimal number each fraction converts to.

Y_Kistochka [10]

A: .44 (not repeating)
b: also .444 (repeating)
c: .41666666667 (repeating, I think)
d: .875 (not repeating)

3 0

3 years ago

Read 2 more answers

The Greek mathematician Eratosthenes (ca. 276-195 BC) measured the circumference of the earthfrom the following observations. He

denpristay [2]

Answer:

Radius of the Earth is 3978.8 Miles

Circumference of the Earth is 25000 Miles

Step-by-step explanation:

The angle of the sun shone at an angle of 7.2° to the zenith

This means that the angle of the sector of the circle is 7.2° (θ)

S = Length of the sector of the circle = 500 miles

r = radius of earth

Converting 7.2° to radians

$\theta =7.2\frac{\pi}{180}$

$S=r\theta\\\Rightarrow r=\frac{S}{\theta}\\\Rightarrow r=\frac{500}{7.2\frac{\pi}{180}}\\\Rightarrow r=3978.8\ Miles$

∴ Radius of the Earth is 3978.8 Miles

$C=2\pi r\\\Rightarrow C=2\times \pi \frac{500}{7.2\frac{\pi}{180}}\\\Rightarrow C=25000\ Miles$

∴ Circumference of the Earth is 25000 Miles

5 0

3 years ago

Distribute the expression (u - 6) x 4.

valkas [14]

4u-24 because you have to take 4 and multiply it by your things inside your parentheses

4 0

3 years ago

Read 2 more answers

What's is greater 34.653 or 4.653?

Strike441 [17]

The greater one is 34.653
because

34 is greater than 4
so, 34.653>4.653

4 0

3 years ago