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Alex787 [66]
2 years ago
8

M = 4.2 is a solution for m(5+8) = 54.6

Mathematics
1 answer:
Tomtit [17]2 years ago
6 0

Answer:

Yes, it is a solution

Step-by-step explanation:

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What is the extended ratio relating the side lengths of a 30-60-90 triangle?
notka56 [123]

Answer:

x:2x:√3x.

Step-by-step explanation:

I would write it as x:2x:√3x.

The hypotenuse is twice the length of the shorter leg and the longer leg is the square root of 3 times the shorter leg.

8 0
3 years ago
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Answer please I’m really struggling with this
katovenus [111]

To write the any polynomial in standard form you must first put it in terms separated only by +,- operators, then you must order terms x^n descendingly according to n. In your case -\frac{1}{5}x^2 will be the first term because it has highest power, followed by -8x^1 and +7x^0.

The standard form of this specific polynomial is:

-\dfrac{1}{5}x^2-2x+7.

Hope this helps.

6 0
3 years ago
Ryan places a mirror on the ground 42 feet from the base of a tree. He walks backwards until he can see the top of the tree in t
Angelina_Jolie [31]
B, 36 feet will be your correct answer.
3 0
3 years ago
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20 points . Find the geometric mean of 5/4 and 80
mrs_skeptik [129]

Answer:

3.636478334

Step-by-step explanation:

6 0
3 years ago
Help help! 50+ points plus Brainlist answer if work is shown!
3241004551 [841]

Answer:

4 sqrt(5)

-----------------

5

83 +12 sqrt(35)

Step-by-step explanation:

1.   4 sqrt(6)

 --------------------

sqrt(30)

Multiply the top and bottom by sqrt(30) to rationalize the denominator

4 sqrt(6) *sqrt(30)

 --------------------

sqrt(30)*sqrt(30)

4 sqrt(180)

 --------------------

30

Simplify

2 sqrt(36 *5)

--------------------

15

We know that sqrt(ab) = sqrt(a) sqrt(b)

2 sqrt(36)sqrt(5)

--------------------------

15

2 *6*sqrt(5)

-------------------

15

Simplify

2 * 2 sqrt(5)

---------------------

5

4 sqrt(5)

-----------------

5

2. (2 sqrt(5) + 3 sqrt(7))^2

(2 sqrt(5) + 3 sqrt(7)) (2 sqrt(5) + 3 sqrt(7))

FOIL

first 2sqrt(5)*2sqrt(5)=4*5=20

outer 2 sqrt(5) * 3 sqrt(7) = 6 sqrt(35)

inner  3 sqrt(7) *2 sqrt(5) = 6 sqrt(35)

last 3sqrt(7) 3sqrt(7) = 9*7 = 63

Add them together = 20 + 6 sqrt(35)+ 6 sqrt(35) +63 = 83 +12 sqrt(35)

6 0
4 years ago
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