Answer:
120x^3
Step-by-step explanation:
exponent rule --> a^b x a^c = a^b+^c
10^-6 x 10^7 = 10^6 + ^7
add / subtract numbers -- > -6 + 7 = 1
=2XX x 6X x 10
aponent rule --> a^b x a^c = a^b+^c
xxx = x^1 + ^1 + ^1
= 2 x 6x^1 + ^1 + ^1 x 10
= 2 x 6x^3 x 10
= 120x^3
For the given right triangle, the perimeter is 60cm, so the correct option is D.
<h3>
</h3><h3>
How to get the perimeter of the triangle?</h3>
We can see a right triangle, by using the Pythagorean theorem we can get the missing cathetus:


Now we know the measure of the 3 sides, then the perimeter of the given triangle is:
P = 15cm + 20cm + 25cm = 60cm
The perimeter of the triangle is 60cm.
If you want to learn more about right triangles:
brainly.com/question/2217700
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Answer:
There are
alternative schools in the country
Step-by-step explanation:
Let
x------> the number of charter schools
y-----> the number of alternative schools
we know that

-----> equation A
substitute the value of x in the equation A and solve for y




Answer:
90°
Step-by-step explanation:
Circle C has radius √36 = 6
Circle D has radius √18 = 3√2
As the D radius intersecting either point of tangency, does so at a right angle.
The half angle θ between the tangents is
sinθ = 3√2 / 6 = ½√2
θ = 45°
so the angle between the tangents is 2(45) = 90°