<span>0.55−(0.9−0.8)⋅4
=</span><span>0.55 − 3.6 + 3.2
= 0.15</span>
Should be 12.5
19.5 would come out to be greater than 20
17.5 would come out to be 20, but it must be less than
therefore, 12.5 is the answer
First the equation is 3+4, which equals 7
Answer: (-0.61, 5.85) and (-2.72, 3.04)
<u>Step-by-step explanation:</u>
y = 2x² + 8x + 10
y = -x² - 2x + 5
Use substitution method to get: 2x² + 8x + 10 = -x² - 2x + 5
Move everything to one side and 0 on the other: 3x² + 10x + 5 = 0
Use the quadratic formula to solve for x: 

x₁ = -0.61 x₂ = -2.72
Next, input the x-values to solve for y:
y₁ = -x² - 2x + 5 y₂ = -x² - 2x + 5
= -(-0.61)² - 2(-0.61) + 5 = -(-2.72)² - 2(-2.72) + 5
= -0.37 + 1.22 + 5 = -7.40 + 5.44 + 5
= 5.85 = 3.04
Answer:
1775
Step-by-step explanation:
5 x 5 = 25
50 x 5 = 250
5 x 300 = 1500
25+250=275
275+1500=1775