Number 9 need help mathhh
1 answer:
Using the volume formula, we will see that the volume of the sphere is V = 381.51 cm^3
<h3>How to get the volume of the sphere?</h3>
For a sphere of radius R, the volume is given by the formula:
In this case, we can see that the diameter is 9 cm, then the radius is half of that:
R = 9cm/2 = 4.5cm
Now that we know the radius, we can replace it on the volume formula to get:
If you want to learn more about spheres, you can read:
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Answer:
0.6 or
Step-by-step explanation:
Using the Pythagorean theorem () we get that the hypotenuse is 5.
so the cos V is adjacent over the hypotenuse. so if adjacent is 3 and hypotenuse is 5, the answer is which equals 0.6 in decimal form.
<h3><u>Answer</u><u>:</u></h3>
Hello!
To solve this, first perform the opposite operation for the last operation (on the left side) on both sides. The last operation of the left side is squaring. Therefore, square root both sides.
Please note that you must include ±. This is because the square root of 64 can be either positive or negative, as a square of either a positive or negative number is positive.
Now, add 9 to both sides.
There are 2 solutions from here. One comes from adding 8, and the other subtracting 8. Therefore, the two solutions are:
y = 9 + 8 = 17
y = 9 - 8 = 1
Therefore, your two solutions are 17 and 1.
Hope this helps!