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Burka [1]
3 years ago
15

Evaluate (8+t)^3-6 when t=2?

Mathematics
2 answers:
Lemur [1.5K]3 years ago
5 0
I think 994 (8+2)^3-6=994
Readme [11.4K]3 years ago
3 0
(8 -2)^3 - 6
(6)^3 -6
216 - 6
210

the answer is 210
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X/-1 &gt;2/5 x =<br><br> I need help I don't understand what x is
Mashutka [201]

Answer:

its means a varieble or an unknown value

Step-by-step explanation:

7 0
3 years ago
Plzz help <br><br>find value of following : 2sin75°.cos15°​
polet [3.4K]

Answer:

\frac{2+\sqrt{3} }{2}

Step-by-step explanation:

Using the product to sum formula

sinxcosy = \frac{1}{2} [ sin(x + y) + sin(x - y) ] , then

2sinxcosy = sin(x + y) + sin(x - y)

Given

2sin75°cos15° ← with x = 75 and y = 15 , then

= sin(75 + 15) + sin(75 - 15)

= sin90° + sin60°

= 1 + \frac{\sqrt{3} }{2}

= \frac{2+\sqrt{3} }{2}

6 0
3 years ago
Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC
Kamila [148]
<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span>\frac{a}{sinA} = \frac{b}{sinB}
\frac{20}{sin30^0} = \frac{b}{sin45^0}
\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }
20* \frac{ \sqrt{2} }{2}  = b* \frac{1}{2}
\frac{20 \sqrt{2} }{2} = \frac{b}{2}
2*b =2*20 \sqrt{2}
2b = 40 \sqrt{2}
b =  \frac{40 \sqrt{2} }{2}
\boxed{b = 20 \sqrt{2} }
6 0
3 years ago
Read 2 more answers
Really really easy question. please help.
never [62]

Answer:

line

Step-by-step explanation:

6 0
3 years ago
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8=4w/3, if using this expression what is w equal to?
pogonyaev
8 = 4w/3                    Original Problem.
4w/3 = 8                    Flip Flopped the problem around.
4w = 24                     Multiplied each side by 3.
w = 6                         Divided each side by 4.

Answer: w = 6
8 0
4 years ago
Read 2 more answers
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