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pochemuha
3 years ago
5

Simplify the expression. 3(a – 7) =

Mathematics
2 answers:
Eva8 [605]3 years ago
4 0
The expression simplifies to 3a-21
Elina [12.6K]3 years ago
3 0

Answer:

3a-21

Step-by-step explanation:

3(a-7)= 3a-21

nothing to see here coz the app wants my answer to be at least 20 characters long

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Given the equation P2 = A3, what is the orbital period, in years, for the planet Saturn? (Saturn is located 9.5 AU from the sun.
algol [13]

Answer: 29.28 years

Explanation:

From Kepler's third law the square of orbital period of revolving celestial body is proportional to the cube of semi -major axis from the body  it is revolving about.

P² =A³

Where, P is the orbital period in years and A is the semi-major axis in AU (Astronomical units)

It is given that, For Saturn, A = 9.5 AU. We need to find P

⇒P² = (9.5 AU)³

⇒P² = 857.38

⇒P = 29.28 years

Thus, the orbital period of Jupiter is 29.28 years around the Sun.

5 0
4 years ago
PLZ ANSWER THIS QUICK! THANK U!!
vampirchik [111]
There is 33 students in the class
4 0
3 years ago
What is m∠HLK? thanks
Katen [24]
The answer is 80°.

If there is a line segment in a triangle which cuts two sides in half or if there is a line segment between two midpoints of a triangle's sides, that line segment must be parallel to the remaining side.

In this case, point L is the midpoint of FH, and point K is the midpoint of HG. So, LK is parallel to FG.

When a line cuts two parallel lines, there are angle pairs which are equal. In the problem above, the line segment FH cuts KL and GF.

The angles KLH and GFH are what we called "Corresponding Angles" and they are equal.

So if HFG is 80°, HLK must be equal to 80°
3 0
3 years ago
F(x)=x^3+6x^2+x^1/2 and g(x)=x^1/2 find f(x)/g(x)
Simora [160]
Assuming your f(x) = x^3 +6x^2 +x^(1/2) and g(x) = x^(1/2), you have
.. f(x)/g(x) = x^(5/2) +6x^(3/2) +1


____
If an exponent has any arithmetic in it, parentheses are needed around it.
6 0
4 years ago
-3(-5x+2)+x-3=39 solve for x
Misha Larkins [42]

Answer:

the value of x = 3

Step-by-step explanation:

-3 (-5x+2)+x-3=39

open the bracket by multiply each by -3

15x-6+x-3=39

collect the like terms

16x-9=39

16x=39+9

16x=48

divide both sides by 16

x=3

mark me as brainliest pllyyyyzzz

4 0
3 years ago
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