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ludmilkaskok [199]
3 years ago
15

Can anybody help me please ?

Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

13.5

Step-by-step explanation:

18/4*3=13.5

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3 years ago
Which reason justifies the following statement?
amid [387]

Answer:

(A) Complements of the same  angle are congruent.

Step-by-step explanation:

Since, ∠CEF is complementary to ∠DCF, therefore

∠CEF+∠DCF=90°                                 (1)

Also, ∠CEG=∠CEF+∠FEG

⇒90°=∠CEF+∠FEG                              (2)

Therefore, from(1) and (2), we get

∠CEF+∠DCF=90°    

∠CEF+∠FEG=90°

Subtracting both the equations, we get

  ∠DCF-∠FEG=0

∠DCF=∠FEG.

Hence, ∠DCF≅∠FEG by the rule: Complements of the same  angle are congruent.

3 0
3 years ago
Read 2 more answers
The force F of gravity on a rocket varies directly with its mass m and inversely with the square of its distance d from Earth. W
xz_007 [3.2K]

Model for the Combined variation  is  F = \frac{km}{d^{2} }

Equation to find the mass of the rocket in terms of F and d is :

m=\frac{F d^{2} }{k}

<h3>What is Force ?</h3>

A force is the quantity that change the motion of the object. Force is that influence which can cause any object having some mass, to change it's position or to accelerate from it's original position.

Force (F) and mass (m) of any object are  directly proportional to each other. More the mass of the object , more the force will require to accelerate it.

Mathematically, we can write the equation of force as :

F = m . a

where , m = mass of the object

             a = constant value

In the statement given,

As, force of gravity varies directly with its mass

Therefore, F= k m , where k is a constant

Also force is inversely varies with square of distance d

Thus, F = k / d²

Combining both equations :

F = \frac{km}{d^{2} }  

and the equation of mass in terms of F and d can be written as :

m=\frac{F d^{2} }{k}

To know more about Force and it's equation, visit :

brainly.com/question/14857727

#SPJ4

7 0
1 year ago
Instructions
Alina [70]
Well you look for some thing like a fridge the do that exactly the reason i cant give you the numbers is because you may have a different sized item then me
3 0
3 years ago
What is the first step in writing f(x) = 3x2 + 6x – 8 in vertex form?
notsponge [240]

Answer:

Factor out 3 from the first two terms

Step-by-step explanation:

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