Evaluate the numerical expression. −8.5(9.4 − 6.1) a) −13.50 b) −28.05 c) −86 d) 3.5

To evaluate this expression, we must keep in mind the order of operations. This order is outlined by PEMDAS, which tells us that we should compute operations in parentheses first, exponents next, then multiplication and division, and finally addition and subtraction. Using this knowledge, we should simplify what is in parentheses first in our expression, as shown below:

−8.5(9.4 − 6.1)

-8.5(3.3)

Now, we can perform the final operation, which is multiplication. Keep in mind that our answer should be negative because we are multiplying one negative number by one positive number!

-28.05

Therefore, your answer is -28.05, or answer choice B.

Hope this helps!

h who knows

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.