Ms.Hernandez boarded her dog at a kennel for 4 days it cost $18.90 per day

Mathematics

2 answers:

My name is Ann [436]3 years ago

8 0

Just do 18.90 times 4 if you're trying to find out how much she paid.

natulia [17]3 years ago

3 0

4 x $18.90 = your answer

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Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring.

JulijaS [17]

Answer:

a) $b^2-4ac$

b) 25

Step-by-step explanation:

a) The quadratic formula is $x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$ .

The portion under the radical sign ( $b^2-4ac$ ) is called the discriminant or determinant.

It tells us that, the quadratic equation can be solved by factoring, if its value is a perfect square.

b) The given quadratic equation is $2x^2+7x+3=0$ .

By comparing to $ax^2+bx+c=0$ , we have a=2, b=7, and c=3

We substitute these values to get:

$b^2-4ac=7^2-4(2)(3)$

$b^2-4ac=49-24$

$b^2-4ac=25$

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3 years ago

What is the radius of a circle whose equation ?????

KatRina [158]

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where L is negative half the coefficient of x and K is negative half the coefficient of y and c is the term free of x and y

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4 years ago

The two top NBA players played a basketball game against the RSM team. Together the NBA players made 85 baskets, scoring one poi

Afina-wow [57]

Answer: 36 three-point field goals.

Step-by-step explanation:

To solve this problem, set up a system of equations. Let's call the number of one-pointers $w$ , the number of two-pointers $x$ , and the number of three-pointers $y$ . We are trying to find $y$ here. We also know that $w+x+y=85$ , because that is the total amount of baskets, and also that $w+2x+3y=184$ , which is the total amount of points. We know that there were 22 free throws, so that means we can take away 22 baskets from the first equation, and also 22 points from the second equation. Now the equations are $x+y=63$ and $2x+3y=184$ . Solving the equations using our knowledge of systems of equations, you get that $y=36$ . So, 36 is the answer. Let me know if anything was unclear, and I hope this helped.