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const2013 [10]
3 years ago
8

V+2 5 ____ =___ 7 4 Solve for V.

Mathematics
1 answer:
bonufazy [111]3 years ago
3 0
Does it mean V+25 = 74?
then V will be 49
You might be interested in
14. A boy is standing on the top of a tower, observed that the angle of depression of a car on the horizontal ground is 60". On
qaws [65]

The height of the tower is 331.3 meters

The distance from the car to the foot of the tower is 191.3 meters

The situation forms a right angle triangle.

<h3>Right angle triangle:</h3>

Right angle triangle has one of its angles as 90 degrees. Therefore,

The height of the tower is the opposite side of the right angle triangle. The distance from the foot of the tower to the car is the adjacent side of the triangle formed.

Therefore, the following trigonometric can be formed from the relationship.

let

x = adjacent side = distance from the foot of the tower to the car.

Therefore,

x=\frac{140 + h}{tan60}=\frac{h}{tan45}

cross multiply,

(140 + h)(tan 45) = h tan 60

140 tan 45 + h tan 45 = h tan 60

140 tan 45  =  h tan 60 -  h tan 45

140 = h√3 - h

140 = 1.732h - h

140 = 0.732h

h = 140 / 0.732

h = 191.256830601

h = 191.3

Therefore,

height of the tower = 140 + 191.3 = 331.3

The distance from the car to the foot of the tower is as follows;

  • x = 191.3 / tan 45

x = 191.3 / 1

x = 191.3

Therefore, the distance from the car to the foot of the tower is 191.3 meters

learn more on right triangle here; brainly.com/question/26750565?referrer=searchResults

3 0
3 years ago
Please help me on this question
Masja [62]

Answer:

The number is 5

Step-by-step explanation:

Let x be the number

3x+5+x = 25

Combine like terms

4x+5 = 25

Subtract 5 from each side

4x+5-5 = 25-5

4x = 20

Divide by 4

4x/4 = 20/4

x = 5

8 0
4 years ago
Read 2 more answers
Graph y = −x2 − 2. Identify the vertex of the graph. Tell whether it is a minimum or maximum.
Kitty [74]
Y  = - x^2 - 2

the vertex of - x^2 will be at (0,0)
the -2 translates the graph down 2 units

The answer is the vertex is at (0,-2)  and  as the coefficient of x^2 is negative it is a maximum

Answer is  D.


8 0
3 years ago
Read 2 more answers
What is the value of t in this situation 2t+5=2t+5
Bingel [31]

Answer:

t = infinite amount of solutions

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

2t + 5 = 2t + 5

<u>Step 2: Solve for </u><em><u>t</u></em>

  1. Subtract 5 on both sides:                    2t = 2t
  2. Divide 2 on both sides:                        t = t

Here we see that <em>t</em> does indeed equal <em>t</em>.

∴ t = infinite amount of solutions

6 0
3 years ago
The equation for the circle is:
noname [10]
(-8,12)

the equation for a circle, centered at (h,k) with radius r is
(x-h)^2+(y-k)^2=r^2

so you need to get your equation in this form. completing the square is one way to do this. separating x and y terms you get
x^2+16x+y^2-24y+159=0
which can then be rewritten using complete the square
x^2+16x+64+y^2-24y+144+159=0+64+144
which is equivalent to
(x+8)^2+(y-12)^2+159=208 \\ (x+8)^2+(y-12)^2=49

so your center is the point (-8,12) and the radius would be 7.

8 0
3 years ago
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