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PtichkaEL [24]
3 years ago
14

Consider the quadratic function, f(x)=-2x^2+12x+32=0. Select all statements that are true for the function. The value of the dis

criminant is -112. The value of the discriminant is 20. The value of the discriminant is 400. The function has 1 real solution. The function has 2 real solutions. The function has 2 complex solutions.
Mathematics
2 answers:
Andrews [41]3 years ago
8 0

Answer:

Step-by-step explanation:

-2x² + 12x  + 32 = 0

discriminant = 12² - 4(-2)(32) = 400

positive discriminant means there are two distinct real roots

x = [-12 ± √(12² – 4(-2)·32)] / [2·(-2)]

 = [-12 ± √400] / (-4)

 = [-12 ± 20] /(-4)

 = 8, -2

JulijaS [17]3 years ago
8 0
I wyete yesterday w to do the same as the one that we have to
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4 years ago
Which measure is equivalent to 2.5<br>A) 2.5 mL<br>B) 250 mL<br>C) 2500 mL<br>D) 25000 mL
Molodets [167]
Answer: option C) 2,500 ml (under the assumptions shown below)
Explanation:


This is a conversion of units, but you missed the unit of the question.

What is it? 

It seems it should be 2.5 liters.

So, I am going to explain you how to deal with this problem, assuming you have to find the measure equivalent to 2.5 liters.

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6 0
3 years ago
Olivia places her pet frog on a line to observe the frog’s motion. The line is divided into sections that measure 1 centimeter e
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4 0
4 years ago
If triangle STR ~ triangle PTQ, find QT
lana [24]

Answer:

QT = 45

Step-by-step explanation:

ST = 65

SP = 26

RQ = 30

QT = 4x - 3

Given that ∆STR is similar to ∆PTQ, therefore:

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Plug in the values

\frac{65}{65 - 26} = \frac{30 + (4x - 3)}{4x - 3}

Solve for x

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Cross multiply

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Collect like terms

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Plug in the value of x

QT = 4(12) - 3 = 48 - 3

QT = 45

3 0
3 years ago
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