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Alexandra [31]
3 years ago
14

How many faces, edges, and vertices does a sphere have

Mathematics
2 answers:
Aloiza [94]3 years ago
4 0
0 because a spher is a circle so
lara [203]3 years ago
3 0
Zero for all of them because spheres are round
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5^7<br> ''''''''=______<br> 5^4<br><br> a] 5^11<br> b] 15<br> c] 5^3
Mariulka [41]
The answer is A 5^11 I hope that's right
6 0
3 years ago
Which fraction is equivalent to ?<br><br> 7/10 cup<br> 7/9 cup<br> 7/7 cup<br> 7/1 cup
polet [3.4K]
14/20
14/18
1
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3 0
3 years ago
There are two values of a for which the equation 5x2+ax+7x+5=0 has only one solution for x. What is the sum of those values of a
JulsSmile [24]

Answer:

-14

Step-by-step explanation:

First of all, we know that 5x^2+ ax+7x +5=0 only has one root. That means that b^2 - 4ac=0, and we can use this to find the discriminant, ax + 7x.

Now, if we simplified 5x^2+ ax+7x +5=0, by dividing it all by 5, it would be x^2+(a+7)/5x + 1 = 0.

After, we can plug what we know into the formula, b^2 - 4ac=0. It would be:

(a+7)^2 / 25 - 4 = 0

(a+7)^2 / 25 = 4

(a+7)^2 = 100

Since this is a square root, a+7 can be both negative or positive.

a+7= 10, or a+7 = -10

a=3, or a=-17

The question asks for the sum of a, which is 3 + (-17) = -14

Therefore, the answer is -14.

:) have fun with your rsm problems, assuming you got this from the portal.

7 0
3 years ago
Click on the volume of this cube.
musickatia [10]
512, the formula for volume is length x width x height :)
5 0
3 years ago
Read 2 more answers
Use the graph of the derivative of f to locate the critical points x0 at which f has neither a local maximum nor a local minimum
jok3333 [9.3K]
<span>Critical points are where the derivative is 0, i.e. where it crosses the x - axis

The Critical points lies where the derivative is 0, while it crosses the x-axis, SO, in this case the choice 3 looks like best answer for this.
</span>
6 0
3 years ago
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