Kerrie uses the work shown below to determine 35% of 280. Step 1: 35 percent = 10 percent + 25 percent
Step 2: 10% of 280 = 280 divided by 10 = 28
Step 3: 25% of 280 = 280 divided by 4 = 70
Step 4: 28 + 70 = 98

She states that 35% of 280 is 98. Which is a true statement about Kerrie’s solution?
Kerrie’s solution is correct.
Kerrie incorrectly determined 10% in Step 2.
Kerrie incorrectly determined 25% in Step 3.
Kerrie incorrectly combined the solutions from Step 2 and Step 3 in Step 4.

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92