Answer:
The needed expression is 
.
Step-by-step explanation:
Here the given expression is :
"the result of multiplying 1/2 by a number, then subtracting 9"
Let us assume the given number is p.
Firstly we multiply the given number p with (1/2).
Now, subtracting 9 from the result above, we get:
So here, if the number is p, then the result is :
Hence, the needed expression is .
Answer:
D
Step-by-step explanation:
Note there is a common difference d between consecutive terms in the sequence, that is
d = 2 - 5 = - 1 - 2 = - 4 - (- 1) = - 3
This indicates that the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 5 and d = - 3, thus
= 5 - 3(39) = 5 - 117 = - 112 → D
Answer:
-x + 8y = 56
Step-by-step explanation:
To get rid of fractions, multiply equation by 8.
It becomes 8y = x + 56
Now get the x to the side with the 8y by subtracting x.
-x + 8y = 56
Answer:
x = 16
y = 8√3
Step-by-step explanation:
This is a special right triangle with angle measures of 30° 60° 90° and side lengths x, x√3, and 2x
The side length that sees angle measure of 30° is equal to x
and the side length that sees 60° is equal to x√3 and the side length that sees 90° is equal to 2x
B is the answer to the question
