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mamaluj [8]
3 years ago
9

HELPPPPPPPP PLS!!!!!!!

Mathematics
1 answer:
Rom4ik [11]3 years ago
5 0

Answer:

x = 8

Step-by-step explanation:

  1. Set up an equation: (7x - 2) = (11x - 34)
  2. Combine like terms: 7x - 11x = 2 - 34
  3. Simplify: -4x = -32
  4. Divide each side by -4 to cancel out the -4 next to x. It should now look like this: x = 9

I hope this helps!

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Find sin 2x,cos2x and tan2x,if tanx=-(3)/(4)and x terminates in quadrant IV
Montano1993 [528]

Answer:PLEASE HELP ME

Step-by-step explanation:

here can you guys please help me with this question.

I have been asking help from so many people but no one is nice enough to give it so im hoping that anyone over here can help me. this is the problem

Carl is standing at the base of a zip line which is 400 ft away from the base of the building that is connected to the top of a building. Standing 5.5 ft tall, he looks up to the top of the building at an angle of elevation of 25 degrees. A weight is released and travels down the zip line to his feet. How far did the weight travel? Round to nearest 10th of a foot and do not use units in your answer.

Please show work

7 0
3 years ago
A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches.
Svetllana [295]

Answer:

The perimeter of the plaque is 28 inches.

Step-by-step explanation:

Given : A house number is displayed on a plaque in the shape of a regular 7-sided polygon. The area of the plaque is 70 squared inches. The perpendicular distance from a side to the center is 5 inches to the nearest inch.

To find : What is the perimeter of the plaque?

Solution :

The 7-sided polygon can be divided into seven triangles whose height, h is equal to the perpendicular distance from each side to the center.

The base of each triangle is equal to the length of a side, s.

The area of each triangle is A=\frac{1}{2}\times s\times h

The area of the whole polygon is A_p=\frac{1}{2}\times 7s\times h

Now, the perimeter of a regular 7-sided polygon is P=7s.

Substitute in area,

A_p=\frac{1}{2}\times P\times h

We have given, A_p=70\ in^2 and h=5\ in

70=\frac{1}{2}\times P\times 5

P=\frac{70\times 2}{5}

P=28

The perimeter of the plaque is 28 inches.

3 0
4 years ago
Er uvay, vvildt is your average velocity!
timurjin [86]

The acceleration of the fire truck is 1.666 m/s².

<u>Step-by-step explanation:</u>

Acceleration is the measure of change in velocity with respect to time. So as the initial velocity of the fire truck is given as 0 km/hr and the final velocity is given as 66 km/hr. So at first the truck is at rest and on switching on the engine, the truck gets to the velocity of 66 km/hr in 11 seconds.

        \text { Acceleration }=\frac{\text {Change in velocity}}{\text {time}}

But first the units of velocity should be changed from km/hr to m/s

1 hour = 3600 seconds

1 km = 1000 m

So, 66\ {k m}{h r}=\frac{66 \times 1000}{3600} m / s

Converted Velocity = 18.33 m/s

Then, the acceleration will be

\text { Acceleration }=\frac{18.33-0}{11}

Acceleration = 1.666 m/s²

So, the acceleration of the fire truck is 1.666 m/s².

5 0
4 years ago
What is N?<br> 10 points!!
adell [148]

Answer:

87.37

Step-by-step explanation:

73^{2} +48^{2} = \sqrt{7,633}

\sqrt{7,633} = 87.367

Pythagorean Theorem :)

4 0
3 years ago
Find the value of two numbers is there some is 12 and there difference is 4
Mademuasel [1]
You mean their sum is 12?

A) x + y = 12
B) x -y = 4  then we add both equations:
2x = 16
x = 8
y = 4



3 0
3 years ago
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