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insens350 [35]
3 years ago
15

Select all of the following that are quadratic equations.

Mathematics
1 answer:
sleet_krkn [62]3 years ago
3 0
The name Quadratic<span> comes from "quad" meaning square, because the variable gets squared (like x</span>2<span>). However, it is important to not that an expression is only quadratic if and only if the highest degree of a term is 2. Therefore, the quadratic equations from the pool of choices would be as follows:

</span><span>3x^2 + 5x - 7 = 0
</span><span>5x^2+ 15x = 0
</span><span>x^2 - 4x = 4x + 7</span>
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(-5• -4) divided by (-3+5)
Zepler [3.9K]

Answer:

15/1 (15 Over 1)

Step-by-step explanation:

8 0
3 years ago
Help plezzz if u can
xxMikexx [17]

Answer:

60

Step-by-step explanation:

10 / 2 = 5

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5 0
3 years ago
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The Excel file Store and Regional Sales Database provides sales data for computers and peripherals showing the store identificat
zhannawk [14.2K]

Answer:

Total sales revenue use  excel function : ( SUMIF. =sumif(range, criteria, [sum_range] )

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Step-by-step explanation:

To modify the spreadsheet to calculate the total sales revenue we will add a column " sales revenue "

multiply values of column : ( unit sold * unit price )  to get Total sales revenue. then use  excel function : ( SUMIF. =sumif(range, criteria, [sum_range] ) to find Total sales revenue

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8 0
3 years ago
Kurt drew a rectangular maze with the length of 3/4 foot and a width of 5/12 foot.
pochemuha
I hope this helps you



Area =3/4.5/12


Area =5/4.4


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4 0
3 years ago
= 2. Given the quadratic equation 3x2 – 8x + k = 0 has no real roots. Find the range of values of k.
VashaNatasha [74]

\text{If there  are no real roots, then}\\\\~~~~~\text{Discriminant} < 0\\\\\implies b^2 -4ac < 0\\\\\implies (-8)^2 -4 \cdot 3 k < 0\\\\\implies 64-12k < 0\\\\\ \implies 12k > 64\\\\\implies k > \dfrac{64}{12}\\\\\implies k > \dfrac{16}3\\\\\text{Interval,}~ \left( \dfrac{16}3, ~\infty\right)

6 0
2 years ago
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