13,000 because 9 rounds 2 to 3
Answer:
91.8 ft
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp/ adj
tan 42 = x/102
102 tan 42 =x
91.84121252 =x
Answer:
600 was invested at 8% and $400 at 5%
Step-by-step explanation:
Let x represent the amount of $ invested at 8% and y the amount at 5%.
Then x + y = $1000 is the total investment. Therefore, y = 10000 - x
Interest earned is then:
0.08x + 0.05(y) = 68, or (after substitution)
0.08x + 0.05(1000) - 0.05x = 68
0.08x + 50 - 0.05x = 68, or
0.03x = 18. Dividing both sides by 0.03, we find that x = 18/0.03 = 600.
If x = $600, then y = $1000 - $600 = $400.
$600 was invested at 8% and $400 at 5%.
She is correct
Slope:3
Y-intercept:0,4
Slope= 7
Y-intercept= 7
X-intercept= -1
