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NeTakaya
3 years ago
7

Find the value(s) of "k" that will cause the equation 4x^2 +kx + 4 to have one real solution.

Mathematics
1 answer:
Andreas93 [3]3 years ago
6 0

Answer:  k = {8, -8}

<u>Step-by-step explanation:</u>

In order for a quadratic equation to have exactly one solution, the discriminant must equal zero.       →        b² - 4ac = 0

  4x² + kx + 4 = 0

  ↓       ↓      ↓

a=4    b=k    c=4

b² - 4ac = 0

k² - 4(4)(4) = 0

k²             = 64

           k = √64

           k = ± 8

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obtuse angle

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3 0
2 years ago
Read 2 more answers
Need help please explain w answer if you can.
uranmaximum [27]
Start by looking at the components of the line, basically the legs if you were to make it a right triangle.
components = < x1 - x2,  y1 - y2 >
< 10-5 , 12-4 > = < 5 , 8 >
So the line starts at A and goes right 5 then up 8 to point B.

We need a point 3:1 distance which means that if X is our new point, length AX is 3 times length of XB.

3+1 = 4 parts total
Point X will be 3/4 distance

3/4 the components
< 5(3/4) , 8(3/4) > = < 15/4 , 6 >
Add these to point A to go right and up to the new point X.

(5 + 15/4 , 4 + 6) = (35/4 , 10)
35/4 = 8 3/4
so the first one is correct.

7 0
3 years ago
each year the drama team holds a "lunchtime" fundraiser. Last year the team sold 10 chili dogs for every 12 corn dogs they sold.
Dvinal [7]

Answer:

70

Step-by-step explanation:

7*12=84 10:12 chili dogs 10*7=70

4 0
3 years ago
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Given : 3x + 2(x — 5) = 32<br> prove : x = 84
pishuonlain [190]

Answer:

what is the question.??

4 0
2 years ago
The product of 9 and the quantity 5 more that a number,t, is less that 6
Pepsi [2]

The inequality is 9 ( t + 5 ) < 6.

In mathematics, an inequality is a relation that makes a non-same comparison between two numbers or different mathematical expressions. It is used most often to examine numbers on the quantity line by using their length.

Inequality, In mathematics, is a declaration of an order relationship—greater than, extra than or same too, much less than, or much less than or identical to—between numbers or algebraic expressions.

The definition of inequality is a difference in length, amount, exceptional, social function, or another component. An instance of inequality is if you have ten of something and a person else has none.

Let t be the number.

We know that,

The phrase "5 more than a number t" is equal to adding the number t and 5

(t+5)

The phrase "the product of 9 and the quantity 5 more than a number t" is equal to multiplying 9 by (t+5)

9(t+5)

Less represent the symbol " < ".

Therefore,

The inequality that represents this problem is 9(t+5) < 6.

Learn more about inequality here brainly.com/question/11613554

#SPJ1

7 0
1 year ago
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