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Lyrx [107]
2 years ago
14

For what value of k will the relation y = kx² + 8x + 8 have only one zero? (3 marks)

Mathematics
1 answer:
Lana71 [14]2 years ago
4 0

Answer:

2

Step-by-step explanation:

2x^2 + 8x + 8

factor the 2 out : 2(x^2 + 4x + 4)

2(x + 2)^2

x = -2

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Line AB contains (0,4) and (1,6). Line CD contains points (2,10) and (-1,4). Lines AB and CD are
beks73 [17]

Answer: parallel because the slopes are the same

Step-by-step explanation:

3 0
3 years ago
Over the last three evenings, Diane received a total of 105 phone calls at the call center. The third evening, she received 4 ti
sergij07 [2.7K]

Answer:

Make an eqaution from here.
Let’s make evening 2 “x”

So the first evening has 9 less then the secon evening so…
x-9
Of course theres the second evening (x).

X-9+x
Then the third evening has 4 times as much as the second meeting so…
x-9+x+4x

And when solved, it has to equal 105.

So solve from here.
Combine like terms.

6x-9=105
Isolate

6x=114
x= 19

First evening is 9 less then 19, so 10.

The second evening was 19 calls.
The third evening was 4 times the second evening so, 19*4= 76

1st night = 10

2nd night= 19 calls
Thrid night= 76 calls

8 0
2 years ago
The perimeter of a rectangular garden is 302 m.
kompoz [17]
I think that person above me should be your answer
4 0
3 years ago
Which expression represents the phrase 1/3 the difference of 8 and a number
Ilya [14]
1/3 (8-x)

Hope that helps, good luck
8 0
3 years ago
Read 2 more answers
Stephen borrows $10,000 from his uncle at a simple interest rate of 2%. He repays the loan in full after 3 years. How much money
ohaa [14]

The total amount of money that Stephen would pay his uncle is equal to $10,600.

<h3>How to calculate simple interest.</h3>

Mathematically, simple interest is calculated by using this formula:

I = PRT

<u>Where:</u>

  • I is the simple interest.
  • P is the principal.
  • R is the interest rate.
  • T is the time measured in years.

<u>Given the following data:</u>

Interest rate = 2% = 0.02.

Principal = $10,000.

Time = 3 years.

Substituting the given parameters into the formula, we have;

I = 10000 × 0.02 × 3

I = $600.

Amount of balance;

A = I + P

A = 600 + 10,000

A = $10,600.

Read more on simple interest here: brainly.com/question/24341207

7 0
2 years ago
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