Answer:
22
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Write out expression
40 - 2 × 3²
Step 2: Exponents
40 - 2 × 9
Step 3: Multiply
40 - 18
Step 4: Subtract
22
Answer:
A and E
Step-by-step explanation:
A = 2.3
B = 1.64
C = 10.08
D = 2.71
E = 2.3
F = 10.08
Answer:
A. They are the same.
Step-by-step explanation:
The sine of any acute angle is equal to its cosine.
Answer:
2
Step-by-step explanation:
not needed
Answer:
b= -4
Step-by-step explanation:
On both sides of the equation has distributive property. We need to solve that first. Let's start with the left side of the equation.
*Positive multiplied by a negative equals a negative
-2b+2(b-10)= 2(10+5b)
-2b+2b-20= 2(10+5b)
-20= 2(10+5b)
Now let's solve the right side of the equation
-20= 20+10b
-20 -20
-40 = 10b
-40/10 = 10b/10
b= -4
Hope this helps!
