Substitution method

y=-3

2x+y=5

x-2y+z=6

Which equation can be solved using the expression - 3 plus or minus the square root of (3) ^2+4 (10) (2) / 2 (10) for x? A. 10x^2=3x+2 B. 2=3x+10x^2 C. 3x=10x^2-2 D. 10x^2+2=-3x

Na'ilah invented a new use for the symbol #. She decided the symbol would mean you must multiply the two numbers used with the symbol and add 1 to the total. Formulate some examples using this symbol in this way.

Which list shows the absolute value in order from least to greatest A | - 2/3 |, | - 5/9 |, |2/9| B | - 3/8|, | - 3/4|, |-7/8 | C |-1/10 |, |-4/5|, |7/10 D |-5/14 |, |-4/7 |,|6/7|

List the factors of 4 is the number 4 a prime or composite

Which is the only fraction that must be represented by a nonterminating decimal? a. 7/5 b. 7/4 c. 7/3 d. 7/2

Iris wants to buy two necklaces, one for her sister and one for herself. The necklace for her sister costs $42.00, and the necklace for herself costs $28.00. The sales tax on the purchases is 8%.

A satellite launch rocket has a cylindrical fuel tank. The fuel tank can hold V cubic meters of fuel. If the tank measures d meters across, what is the height of the tank in meters?

14 + 21 + 16 Total count - Mean Value

What is the exact distance from (-5, 1) to (3, 0) ? units units units units

Use the factors and sums to find the missing factors and final sum: 3 (4 + 9) =