Answer:
The mistake is in step 1 when you do -2(x+4) you do the distributive property first -2 times x is -2x that's correct but -2 times 4 is not 8 it is -8
when you multiply by negatives the answer will always be a negative unless your multiply 2 negative number together then itll be positive ex. 4 × -4 = -16 (negative) but -4 × -4 = 16 (positive)
If the problem is 4x=12-5x-30 then
You would add 5x to the 4x; 9x=12-30. Next 12-30; 9x=-18. Now divide nine from both sides to get; x=-2
Question 23
Lateral Surface Area = πD x height
Lateral Surface Area = π (4) (6) = 75.40 in²
Question 24
Total Surface Area = 2(8.2 x 3.4) + 2(8.2 x 2) + 2(3.4 x 2)
Total Surface Area = 36.56 in²
Question 25
Total Surface Area = 2(10 x 12) + 2(12 x 4) + 2(10 x 4)
Total Surface Area = 416 in²
Answer:
1/2 ; 1/4
Step-by-step explanation:
Number of cards in a deck = 52
Number of red cards = 26
Number of spades = 13
Probability of event A :
P(A) = required outcome / Total possible outcomes
P( red card) = number of red cards / total cards in deck
P(red card) = 26 / 52 = 1/2
P(spade) = number of spades / total cards in deck
P(red card) = 13 / 52 = 1 / 4
Answer:
B
Step-by-step explanation:
Logs are very useful when quantities are large. By far the largest quantities here are distances from Earth to other planets, galaxies and so on. B
