Rewrite the equation by completing the square.
x^2 + 7x + 12 = 0

A boy pushes his little brother on a sled. The sled accelerates from rest to (4 m/s). If the combined mass of his brother and the sled is (40.0 kg) and (20 W) of power is developd, how long time does boy push the sled?16s300s15s23s Which energy store is increased when an object is heated? the only reason i know cardiants is because of mincraft PLEASE HELP!!!Write the factored form of the least common denominator needed to simplify this expression Which type of wave causes particles of matter to vibrate in a directionperpendicular to the direction of its motion?O A. SoundB. TransverseC. LongitudinalD. Compression What is the observation of heating of iodine crystals 4.2 To buy a new car is not a very good investment. In the first year the car willdecrease in value by 25%.4.2.1If the car costs R200 000, what will it be worth after 1 year? Simplify the expression.... Segment [tex]$s_1$[/tex] has endpoints at [tex]$(3+\sqrt{2},5)$[/tex] and[tex]$(4,7)$[/tex]. Segment [tex]$s_2$[/tex] has endpoints at [tex]$(6-\sqrt{2},3)$[/tex] and[tex]$(3,5)$[/tex]. Find the midpoint of the segment with endpoints at the midpoints of [tex]$s_1$[/tex] and [tex]$s_2$[/tex]. Express your answer as [tex]$(a,b)$[/tex]. Simplify -4 + (-3) + 6. If the amplitude of a sound wave is increased by a factor of four,how does the energy carry by the sound wave in each time interval change? The Marked price of a jacket at a dealer's shop is 2400. The dealer allows a discount of 15% to the retailer. As the company's policies the marked price of the retailer should be the same as the dealer's marked price. What SP should the retailer fix for the jacket? What would its final price be if 10% VAT is imposed? What would be the actual gain of retailer?Ans 2280,2502,240 in a sale, normal prices are reduced by 10%nathalie bought a pair of shoes in the sale for 54what was the original price of the shoes What is the solution to the inequality x(x 3) > 0? Dehydration synthesis leads to WICH formation Here's a little something that will tease your brain. I doubt someone will answer this A car takes a full round of journey in a roundabout with constant speed, as the driver got confused with the route. Can we consider it as a uniform motion? Why? Please revise this sentence: "Only then did I realize how annoyed a cat must have got when it couldn't catch the mouse, and eventually how happy a cat can get when the mouse dies without it trying." (Context: A mouse dies from fright under a couch while a mom, her son, and their cat try to coax it to come out.) Mt vt chuyn ng trn u c chu k T = 0,25 s. Tnh tn s chuyn ng f ca vt? The following data represents the number of days absent and the final grade for a sample of college students in a general education course at a large state university. No. of absences 0 1 2 3 4 5 6 7 8 9 Final Grade 89.2 86.4 83.5 81.1 78.2 73.9 64.3 71.8 65.5 66.2 a) Which variable is the explanatory variable? b) Draw a scatter plot and describe your scatter plot (Direction, Strength, Form). c) Compute the correlation coefficient d) Does a linear relation exist between the number of absences and the final grade? Justify your answer. e) Write out the least-squares regression line equation. f) Compute and draw the residual (on your scatter plot) for a student who misses 5 class meetings. g) Explain the slope in context. h) Is the y-intercept meaningful in this situation? Explain. i) Compute and interpret the coefficient of determination. j) Construct a residual plot to verify the requirements of the least-squares regression model.