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kompoz [17]
3 years ago
5

I'd really appreciate it if anyone could help! :) I'll give Brainliest!

Mathematics
1 answer:
Dmitrij [34]3 years ago
8 0

B and C are correct!

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4x + 6 - x = 7 + 2 x
rodikova [14]

Answer:

x = 1

Step-by-step explanation:

4x + 6 - x = 7 + 2x

3x + 6 = 7 + 2x

3x - 2x = 7 - 6

x = 1

8 0
2 years ago
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A triangle has two constant sides of length 5 feet and 7 feet. The angle between these two sides is increasing at a rate of 0.9
o-na [289]

Answer:12.74 ft^2/s

Step-by-step explanation:

Given

Two sides of triangle of sides 5 ft and 7 ft

and angle between them is increasing at a rate of 0.9 radians per second

let \thetais the angle between them thus

Area of triangle when two sides and angle between them is given

A=\frac{ab\sin C}{2}

A=\frac{5\times 7\times \sin \theta }{2}

Differentiate w.r.t time

\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\cos theta }{2}\times \frac{\mathrm{d} \theta }{\mathrm{d} t}

at \theta =\frac{\pi }{5}

\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\times cos(\frac{\pi }{5})}{2}\times 0.9

\frac{\mathrm{d} A}{\mathrm{d} t}=12.74 ft^2/s

4 0
3 years ago
In two or more sentences, explain how to solve the cube root equation, 3√x−1+2=0
jolli1 [7]

Answer: PEMDAS


Step-by-step explanation: You wanna add 1 to both sides and get 3√x = 1. Then you wanna multiply 3 by 3√x which leaves you with x cause it canceled out. But remember to multiply 3 on both sides so x = 1 sq rt 3. Which is just 1.

x = 1


4 0
3 years ago
HELPPP PLEASEEE ILL GIVE B IF CORRECT AND EXPLAIN
timurjin [86]
Answer: 60 degrees

Explanation: If all angles are same, each angle is 60 degrees and adds up to 180.
6 0
3 years ago
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Please help ............
vlabodo [156]

Answer:

4

Step-by-step explanation:

8 0
3 years ago
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