2x^2 + 8x - 12 = 0..divide by 2
x^2 + 4x - 6 = 0
x^2 + 4x = 6...add 4 to both sides of the equation
x^2 + 4x + 4 = 6 + 4
(x + 2)^2 = 10....<== ur constant is 10
x + 2 = (+-)sqrt 10
x = -2 (+ - ) sqrt 10
x = -2 + sqrt 10
x = -2 - sqrt 10
Answer:
52 quarters, 42 dimes
Step-by-step explanation:
Let's call the number of quarters q, and the number of dimes d.
q+d=94
0.25q+0.1d=17.20
Subtract q from both sides of the first equation to isolate d:
d=94-q
0.25q+0.1(94-q)=17.20
0.25q+9.4-0.1q=17.20
0.15q=7.8
q=52
d=94-q=42
Hope this helps!
Based on the scatter plot on perishable and nonperishable items purchased by customers, the following is true:
- Purchased 5 nonperishable items - 3 people.
- Median number of perishable items = 7 perishable items.
- People bought same number of perishable and nonperishable = 2 people.
<h3 /><h3>What does the scatterplot show?</h3>
Looking at the y-axis which shows the number of nonperishable items bought, the number of dots we find at 5 is 3 which means 3 people bought 5 nonperishable items.
The median of perishable items requires that we order the perishable items bought:
2, 2, 5, 6, 7, 8, 9, 10, 11
The median is 7 perishable items.
The number of people with the same number of perishable and nonperishables are 2 people.
One purchased 8 nonperishables and 8 perishables and the other purchased 9 of both items.
Find out more on scatterplots at brainly.com/question/7802890.
#SPJ1
What are you trying to ask ??
Answer:
see explanation
Step-by-step explanation:
To prove the equation id true, solve both sides and if they are equal then the equation is true.
left side = 6 × 8 = 48
right side = 3 × 2 × 2 × 2 × 2
= 6 × 2 × 2 × 2
= 12 × 2 × 2
= 24 × 2
= = 48
Since both sides are equal then the equation is true
