After you get the equations: 3x + 4y =40 and 5x + 2y =34, use matrices and plug it into the graphing calculator which will give you the answers for x and y.
<span>X is going equal to 4 </span>
<span>and y is going to equal 7 </span>
<span>check: </span>
<span>3(4) + 4(7)= 40 </span>
<span>5(4) + 2(7)= 34
btw... never knew this is college level mathematics ^_^</span>
Answer:
(x + 4)(x - 8).
Step-by-step explanation:
a²-4a-32
We need 2 numbers whose product is -32 and whose sum is -4.
They are +4 and -8, so the factors are:
(x + 4)(x - 8).
Explanation:
In 2 hours (x) Frank earned $31(y)
In 4 hours (x) Frank earned $62(y)
2x = 31y
31 / 2 = 15.5
4x = 15.5 x 4 = 62y
Cos(37°) = 1/x
x = 1/cos(37°)
x = 1.25
answer: 1.25
The formula to calculate the experimental probability is "P(event) = Number of times event occurs/total number of trials"
The expiramental probability should be the fraction "21/47"
The theoretical probability should be the fraction "1/3" because the formula for theoretical probability is the number of favorable outcomes (5 dollar bill) over the total number of possible outcomes (10-dollar bill, one dollar bill, & 5 dollar bill). therefore, there is 1 favorable outcome, and 3 possible outcomes = 1/3.