Explanation:
Translate the problem into an equation:
x
2
=
x
+
12
Solve the quadratic equation:
x
2
−
x
−
12
=
0
Try factoring. If this does not work, we can use the quadratic formula:
(
x
+
3
)
(
x
−
4
)
=
0
x
=
−
3
or
x
=
4
Throw out the negative result:
x
=
4
It’s F because it doesn’t fall and there is a change so it can’t be A and deleted the underlined word is useless
The time guests should arrive for the 9 am opening is 8:30am.
<h3>What time should guests start arriving?</h3>
When guests are expected at an event, best practice is to arrive 15 minutes before the opening time. If 30 minutes is subtracted from 9am it is 8:30 am.
If guests aim to arrive at exactly at 9am, it is likely that they would not be at the opening on time.
Here are the options to this question: A. 1 a.m. B. 9 a.m. C. 6 a.m. D. 8:30 a.m.
To learn more about how to calculate time, please check: brainly.com/question/26290873
One thing that aldosterone is able to affect from the given options is A) regulation of body fluid concentration along the distal convoluted tubule and collecting duct.
<h3 /><h3>What does aldosterone do?</h3>
The aldosterone hormone has several functions in the body due to its nature as a steroid hormone. One thing that is does is to control the balance of water in the kidney.
To be more technical, it regulates the body fluid concentration along the distal convoluted tubule and collecting duct by keeping the level of water and sale balanced. It does this by controlling sodium and potassium levels.
Options for this question include:
- A) regulation of body fluid concentration along the distal convoluted tubule and collecting duct
- B) osmotic flow of water in the proximal convoluted tubule
- C) removal of wastes through the entire renal tubule
- D) pH regulation
- E) formation of plasma proteins
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The dihedral angle of a regular tetrahedron is 70.5 degrees.
<h3>
Dihedral angle</h3>
A dihedral angle is defined as the angle between two planes. When two intersecting planes meet, it forms an angle known as dihedral angle.
A regular tetrahedron is a tetrahedron in which all four faces are equilateral triangles.
The dihedral angle of a regular tetrahedron is 70.5 degrees.
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