Answer:
-4.9
Step-by-step explanation:
i believe that the answer is D 8.75
Answer:
Divide it by 2 then multiply it by the answer. For example b is 4, divide it by 2. Then multiply by itself which is 2. Then answer is 4.
Answer:
$29.69
Step-by-step explanation:
Because you have to put the percent into decimal form and then multiply it by the original price. So you do 39.59*.25 which equals 9.8975 then you subtract that from the original price and get 29.6925 and round to the nearest hundredth place so it comes out to be $29.69
Answer:
11/64
Step-by-step explanation:
Each question can be answered in 2 ways
∴ Total ways in which 10 questions can be answered
=2¹⁰
No. of ways of guessing at least 7 questions
out of 10
=7 questions correct +8 questions correct
+9 questions correct +10 questions correct
= ¹⁰C7(1)⁷+ ¹⁰C8(1)⁸+ ¹⁰C9(1)⁹+ ¹⁰C10(1)¹⁰
= 120 + 45 + 10 +1
=176
..Required Probability =176/2¹⁰
.. =11×16/2¹⁰
=11/64