Answer the question or complete the sentence to make a true statement.Under what condition will the sum of a positive number and a negative number be negative?
What will be an ideal response?
The absolute value of the negative number must be larger than the absolute value of the positive number.
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Find the focus and directrix of the parabola.x2 = -20y
A. (0, -5); x = 5 B. (0, -5); y = 5 C. (-5, 0); y = 5 D. (0, -5); y = -5
Solve the problem.A chemist needs 70 milliliters of a 63% solution but has only 51% and 79% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 20 ml of 51%; 50 ml of 79% B. 40 ml of 51%; 30 ml of 79% C. 30 ml of 51%; 40 ml of 79% D. 50 ml of 51%; 20 ml of 79%
Solve the equation by expressing each side as a power of the same base and then equating exponents. 5-x = 
A. 
B. {4}
C. 
D. {-4}
Solve the problem.The temperature at 2 p.m. was 10 degrees below zero. By 11 p.m. the temperature had dropped another 24 degrees. Represent this temperature as an integer.
A. 14° B. -14° C. 34° D. -34°