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DIA [1.3K]
2 years ago
7

Which shows the correct substitution of the values a, b, and c from the equation 1 = -2x + 3x² + 1 into the quadratic

Mathematics
1 answer:
antoniya [11.8K]2 years ago
8 0
The coefficient 'a' for the quadratic term is a = 3
The coefficient 'b' for the linear term is b = -2
The coefficient 'c' is 0
Step-by-step explanation :
The given expression is,




To solve this problem we are using quadratic formula.
The general quadratic equation is,

Formula used :

Now we a have to solve the above equation and we get the value of 'x'.

a = 3, b = -2, c = 0






The coefficient 'a' for the quadratic term is a = 3
The coefficient 'b' for the linear term is b = -2
The coefficient 'c' is 0
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Simplify the expression square root of 15•square17
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Step-by-step explanation:

\sqrt{15}\cdot\sqrt{17}=\sqrt{(15)(17)}=\sqrt{255}\\\\\text{Used}\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}

5 0
2 years ago
Which of the following statements is true? ​
WINSTONCH [101]

Answer:

B and D

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
3. Mandy obtains a $155,000 20/6 balloon mortgage with a rate of 4.25%. What will her monthly payments be? (2 points)
Andrews [41]

Answer:

$279.98

Step-by-step explanation:

A 20/6 balloon payment means loan amortization is for 20 years and constant payments is for 6 years after which balloon payment is due.

The formula to calculate her constant payments based on a 15 year amortization plan is

A= P × r × r(1+r)^n/(1+r)^n-1

Where A = constant monthly payments for the 6 year period

r= interest rate

P= mortgage value loan

n= number of months =20×12=240 payments

Substitute values in the formula:

A= $155000× 0.0425×0.0425(1+0.0425)^240/(1+0.0425)^240-1

A= $279.98

To calculate what she would pay before balloon payment is due, we simply multiply her monthly payments $279.98 by number of payments 240

6 0
3 years ago
The dose of a drug is critical. Too small a dose may not treat a patient effectively, while too much can cause serious side effe
otez555 [7]

Proportionately, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.

<h3>What is the proportion?</h3>

The proportion is the ratio of a variable to another.

Proportion defines the numerical relationships among variables.

Proportion shows how much a value is contained in the whole.

<h3>Data and Calculations:</h3>

2.20462 lb = 1 kg

165 lb = 74.8428 kg (165/2.20462)

1 kg = 40 mg of the drug

74.8428 kg = 2,993.71 mg (74.8428 kg x 40 mg)

Thus, the amount of the drug that the patient should be given is <u>2,993.71 mg</u>.

Learn more about proportions at brainly.com/question/870035

#SPJ1

3 0
1 year ago
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