Use the discriminant to determine the number of real solutions to the quadratic equation.

What do i do?? i just have to find what the the question marks show.

lina2011 [118]

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Given information
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100% = $27.60

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Rewriting it
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$\$27.60 = 100 \%$
$\$1 = 100 \div 27.60 \%$
$\$1 = \frac{250}{69} \%$

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Find $4.14 in percentage
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$\$1 = \frac{250}{69} \%$
$\$4.14 = \frac{250}{69} \times 4.14$
$\$4.14 = 15%$

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Answer: 15%
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Find $31.74 in percentage
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$\$1 = \frac{250}{69} \%$
$\$31.74 = \frac{250}{69} \times 31.74$
$$31.74 = 115%$

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Answer: 115%
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4 0

3 years ago

What equals -8 when multiplied but when added together is -7

kirza4 [7]

Answer:

-8 and 1

Step-by-step explanation:

-8 × 1 = -8

-8 + 1 = -7

3 0

2 years ago

Please HELP PAST DUE I NEED THE GRADE help!!!

ArbitrLikvidat [17]

Answer:

(A:) I created a scatter plot similar to the one i used for mine, this is for the first part of your question

(B:) Positive Association

Step-by-step explanation:

(B:) Why? Because as your x value increases so does your y and it shows this with the data as well.

I had a tough time with this until i actually read through what it was really asking so i hope this helps you

7 0

3 years ago

What is (-4z^2-11u)-5z^2

Varvara68 [4.7K]

Solution for (-4z^2-11u)-5z^2=
Simplifying (-4z2 + -11u) + -5z2 = 0
Reorder the terms: (-11u + -4z2) + -5z2 = 0
Remove parenthesis around (-11u + -4z2) -11u + -4z2 + -5z2 = 0
Combine like terms: -4z2 + -5z2 = -9z2 -11u + -9z2 = 0 Solving -11u + -9z2 = 0 Solving for variable 'u'.
Add '9z2' to each side of the equation. -11u + -9z2 + 9z2 = 0 + 9z2 Combine like terms: -9z2 + 9z2 = 0 -11u + 0 = 0 + 9z2 -11u = 0 + 9z2
Remove the zero: -11u = 9z2 Divide each side by '-11'. u = -0.8181818182z2 Simplifying u = -0.8181818182z2

7 0

3 years ago

Ellie opened a savings accounts 6 years ago. the account earns 10% interest, compounded annually. if the current balance is $300

DedPeter [7]

$\begin{gathered} 300.000=P(1+0,1)^6 \\ P=\frac{300.000}{(1+0,1)^6} \\ P=169.342 \\ \text{Ellie deposited \$}169.342\text{ initially} \\ A=P(1+i)^t \\ A=\text{FINAL AMOUNT} \\ P=\text{ INITIAL AMOUNT} \\ i=\text{ interest} \\ t=\text{ time. } \end{gathered}$

8 0

1 year ago