Answer:
7 items
Step-by-step explanation:
Sherry and Laura want to buy a new Ipod. Sherry has already saved $49 and will earn the rest by selling necklaces for $5 each. Laura doesn’t have any money saved, but will sell bracelets for $12 each. How many items must they sell to have the same amount saved for an Ipod?
49 + 5x = y
12x = y
7 items later
49+5(7)=84
12(7)=84
Answer:
yes
Step-by-step explanation:
If the values are a Pythagorean triplet then the square of the largest value should equal the sum of the squares of the other 2
largest value = 50 ⇒ 50² = 2500
14² + 48² = 196 + 2304 = 2500
Since 50² = 14² + 48² then 14, 48, 50 are a Pythagorean triplet
Because the parabola intercepts the x-axis only once, we conclude that the discriminant is 0.
<h3>
What can we say about the discriminant?</h3>
For a quadratic equation:
y = a*x^2 + b*x + c
The discriminant is:
D = b^2 - 4ac
- If D = 0, there is only one real zero.
- If D > 0, there are two real zeros.
- If D < 0, there are two complex zeros.
In the graph we can see that the parabola intercepts the x-axis in its vertex, then the parabola has only one real zero, then we conclude that the discriminant is equal to zero.
If you want to learn more about quadratic equations:
brainly.com/question/776122
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The value of the digit 2 in 9.28 is 2/10 because the 2 is in the tenths place
