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Alex_Xolod [135]
3 years ago
12

3x+2(4x-4)=3 answer choices-1,2,3,4

Mathematics
2 answers:
WINSTONCH [101]3 years ago
6 0

Answer:3

Step-by-step explanation:

Veseljchak [2.6K]3 years ago
4 0

Answer:

3

Step-by-step explanation:

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Solve the problem.A plane flying a straight course observes a mountain at a bearing of 35° to the right of its course. At that t
Mice21 [21]

Given:

A plane flying a straight course observes a mountain at a bearing of 35° to the right of its course.

The distance between plan and mountain is 10 km.

A short time later, the bearing to the mountain becomes 45°.

Here NM is the distance between the plane from the mountain when the second bearing is taken.

We need to find the measure of NM.

We\text{ know that }\angle INM\text{ and }\angle\text{XNM are supplementary angles.}

The sum of the supplementary angles is 180 degrees.

\angle INM+\angle XNM=180^o\text{Substitute }\angle XNM=45^o\text{ in the equation.}

\angle INM+45^o=180^o

\angle INM=180^o-45^o

\angle INM=135^o

We know that the sum of all three angles of the triangle is 180 degrees.

\angle INM+\angle NIM+\angle INM=180^o\text{Substitute }\angle INM=135^o\text{ and }\angle NIM=35^o\text{ in the equation.}

135^o+35^o+\angle INM=180^o

170^o+\angle INM=180^o

\angle INM=180^o-170^o

\angle INM=10^o

Consider the sine law.

\frac{\sin N}{IM}=\frac{\sin M}{IN}=\frac{\sin I}{NM}

Take the equation to find the measure of NM.

\frac{\sin N}{IM}=\frac{\sin I}{NM}\text{Substitute }\angle N=135^o,\angle I=35^o,\text{ and IM=10 in the equation.}

\frac{\sin 135^o}{10}=\frac{\sin35^o}{NM}

NM=\frac{\sin 35^o}{\sin 135^o}\times10NM=8.11

Hence the measure of NM is 8.1 km.

The plane is 8.1 km far from the mountain when the second bearing is taken.

5 0
1 year ago
⭐️⭐️ILL MAKE YOU BRAINLIEST⭐️⭐️<br><br> Simplify <br> 4<br> —<br> 1<br> —<br> 5
Sonja [21]

Answer:

idk 3 maybeeed im in 3rd grade idk

5 0
4 years ago
The formula for the circumference C of a circle with radius r is C = 2πr. Which of the following is a formula for π (pi) of the
sweet [91]
<span>the answer: the main condition can be found one of the following given methods: if A = B*C*D, if we want to find the value of B, so B = A /C*D, the similar method can be applied to find the value of C an D. These are C= A/ B*D and D = A /C*B in our case we have C = 2*Pi* R, if we want to find the value of Pi, it is Pi = C / 2*R the true answer is D</span>
6 0
3 years ago
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What number is 60% of 85
ZanzabumX [31]
If you would to solve 60% of 85 is what number, you can calculate this using the following steps:

60% of 85 is x
60% * 85 = x
x = 60% * 85 = 60/100 * 85 = 51

Result: 60% of 85 is 51.
8 0
3 years ago
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I need help plz 10 points
Vaselesa [24]

Answer:

87.9

Step-by-step explanation:

\pi {2}^{2}  \times 2 + 2\pi \times 2 \times 5 = 28\pi = 87.9

5 0
3 years ago
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