A jar contains seven coins: a dime, 2 quarters, and 4 nickels. One coin is taken from the jar at random. What is the probability that the coin taken is not a nickel?
A. 0.5
B. 0.75
C. 0.43
D. 0.57

D

Step-by-step explanation:

There are 7 coins total and 4 of them are nickels

if I take a coin out the probability that it WONT be a nickel is 3/7 or 0.57 because the total amount of coins is always the bottom number and 7- those 4 nickels would be 3. So therefore the answer would be D.

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.

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.