6.28 (equation for circle perimeter is 2πr)
Answer:
=
−
±
2
−
4
√
2
x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}
x=2a−b±b2−4ac
Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.
6
2
−
5
−
4
=
0
6x^{2}-5x-4=0
6x2−5x−4=0
=
6
a={\color{#c92786}{6}}
a=6
=
−
5
b={\color{#e8710a}{-5}}
b=−5
=
−
4
c={\color{#129eaf}{-4}}
c=−4
=
−
(
−
5
)
±
(
−
5
)
2
−
4
⋅
6
(
−
4
)
√
2
⋅
6
Step-by-step explanation:
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Rate of change <span>a </span>rate<span> that describes how one quantity </span>changes<span> in relation to another quantity. It is also called the slope. To calculate the rate of change in temperature, we use the expression:
Rate of change = change in temperature / change in time
</span>Rate of change = -25.5 / 1.5
Rate of change = -17 °C / min
The negative sign signifies a drop in temperature per minute.
Answer:
11 1/4- pounds hamburgers can be made from 2 and 3/4 pounds of ground beef.
Step-by-step explanation:
Here, the amount of beef uses in 1 hamburger = 1/4 pound = 0.25 pounds
Total amount of beef available = 2 3/4 pounds
Now, solving the mixed fraction,we get

So, the total available beef = 2.75 pounds
Now, 
= 
So, <u>the total number of hamburgers made = 11 </u>
Hence, 11 1/4- pounds hamburgers can be made from 2 and 3/4 pounds of ground beef.