Any help pleaseee?????

Mathematics

2 answers:

Marianna [84]2 years ago

6 0

Answer:

DCA = 49*

Step-by-step explanation:

This is because of the fact that we have 2 pairs of vertical angles. Vertical angles are 2 angles made by 2 intersecting lines. They are also equivalent to each other. So that means that Angle BCA = BEC + AEB. Now we know that it is the same for Angle DCA.

Sorry that took a while but I hope this helps! (:

attashe74 [19]2 years ago

3 0

Answer: 49

Step-by-step explanation: angle BCA is congruent to angle DCA therefore they are the same measure

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Answer:

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PLEASE HELP For a particular transformer, the voltage E in the circuits is related to the number of windings W of wire around t

Masja [62]

Answer:

A voltage of 760V will be produced by 19 windings.

Step-by-step explanation:

Given the equation:

E = 40W

Where E is the Voltage in the circuits

and W is the number of windings

Given that E = 760V

To find: W = ?

Solution: Here, we have the given equation in 2 variables where value of 1 variable is given so other can be easily calculated by putting the value of given variable in the equation.

So, Putting the value of E in the given formula and finding W, the number of windings:

$760=40 \times W\\\Rightarrow W = \dfrac{760}{40}\\\Rightarrow W = \dfrac{76}{4}\\\Rightarrow W = 19$