David made a scale drawing of a mural he is going to paint. he used a scale of 1 cm=4ft. if the actual mural will be 16 feet long, how long is the mural in david’s drawing

The mural in David's drawing is 4 cm long.

Step-by-step explanation:

Given:

David made a scale drawing of a mural he is going to paint.

He used a scale of 1 cm=4ft.

If the actual mural will be 16 feet long.

Now, to find how long is the mural in David's drawing.

Let the length of mural in David's drawing be .

So, as given 1 cm = 4 ft.

1 cm is equivalent to 4 ft.

Thus, is equivalent to 16 feet.

Now, to get the length of mural in David's drawing by using the cross multiplication method:

By cross multiplication:

Dividing both sides by 4 we get:

Therefore, the mural in David's drawing is 4 cm long.

a) 7x=7

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.