1. solve each system by substitution. 7x+4y=-21

3x+y=-4

2.

-8x+7y=-6

y=6

Suppose you roll two number cubes and find the probability distribution for the sum of the numbers. Which two sums have the same probability distribution and would be represented with equal bars on a bar graph?

7. Shawna earns $12.75 per hour. How many hours does she need to work to earn $102 or more? at least / at most / less than / more than - _ hours

The tighter the probability distribution of its expected future returns, the greater the risk of a given investment as measured by its standard deviation. a. Trueb. False

A bucket holds 6 liters of water. How much is this in ounces? Use the following conversion: 1 liter is 33.8 ounces.

Which shows 422 - 382 being evaluated using the difference of perfect squares method? 422 - 382 = (1,764 - 1,444) (1,764 + 1,444) = 1,026,560 422 - 382 = 84 - 76 = 8 422 - 382 = (42 - 38) 2 = (4) 2 = 16 422 - 382 = (42 + 38) (42 - 38) = (80) (4) =

How do you write 120% as a decimal and as a fraction

Find the derivative of the function. y = √ (11x + √ (11x + (√11x)))

Carmen spent $88 at the mall the money she spent was 25% of the total amount she had in her wallet

Which of the following situations can be modeled with a periodic function? A) the height of a football after it has been thrown B) the height of a person riding on an escalator C) the height of a building after it has been constructed D) the height

Solve 1/3 x = - 4/5?