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Flura [38]
3 years ago
8

What are the solutions of this quadratic equation ? x ^ 2 = 16x - 65 Substitute the values of a and b to complete the solutions

. Box Box Box^ Box TT sqrt Box sqrt[ Box] Box X x = a + bi x = a - bi​
Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

Answer:

x = 8 + \sqrt{58} or x = 8 − \sqrt{58}

Step-by-step explanation:

Hope This Helps

Please Mark Brainliest if correct

I do Not Have Time To Explain I'm SO Sorry

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Find the slope of the line that passes through the points (1, 1) and (7, 5).
Nata [24]

Step-by-step explanation:

m=y²-y¹/x²-x¹

m=5-1/7-1

m=4/6

m= 2/3

The slope is 2/3

7 0
2 years ago
Read 2 more answers
Describe how you can tell that a fraction is reapeating and not terminating
GREYUIT [131]
<span> First, reduce the fraction to lowest terms, e.g. 8/6 = 4/3.

Look at the denominator. Split it into its prime factors. If its prime factors only consist of 2's and 5's, then it will be terminating.

Examples:
16 = 2 x 2 x 2 x 2, so terminating
25 = 5 x 5, so terminating
2000 = 2 x 1000 = 2 x (2 x 5) x (2 x 5) x (2 x 5), so terminating
12 = 2 x 3, so repeating (has prime factor 3, which is not 2 or 5)
13 = 13, so repeating (has prime factor 13, which is not 2 or 5)  Hope this helps!!

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7 0
3 years ago
I need help with number 4 and number 3 please
dangina [55]
For Question 3, 
15      ?
__ = ____
120     100

120?=1500
1500/120=12.5

?=12.5%

Question 4

I think it is $462.80


5 0
3 years ago
The number N of cars produced at a certain factory in 1 day after t hours of operation is given by Upper N (t )equals 800 t minu
Elden [556K]

Answer:

The cost C as a function of t is C(t) = 30,000 + 6,400,000 t - 40,000 t²

Step-by-step explanation:

The function N(t) = 800 t -  5t², represents the number of cars produced at a time t hours in a day, where 0 ≤ t ≤ 10

The function C(N) = 30,000 + 8,000 N, represents the cost C​ (in dollars) of producing N cars

We need to find The cost C as a function of the time t

That means Substitute N in C by its function by other word find the composite function (C о N)(t)

∵ C(N) = 30,000 + 8,000 N

∵ N(t) = 800 t - 5 t²

- Substitute N in C by 800 t - 5 t²

∴ C(N(t)) = 30,000 + 8000(800 t - 5 t²)

- Multiply the bracket by 8000

∴ C(N(t)) = 30,000 + 8000(800 t) - 8000(5 t²)

∴ C(N(t)) = 30,000 + 6,400,000 t - 40,000 t²

- C(N(t) = C(t)

∴ C(t) = 30,000 + 6,400,000 t - 40,000 t²

The cost C as a function of t is C(t) = 30,000 + 6,400,000 t - 40,000 t²

5 0
3 years ago
Evaluate 9/g+2h+5 when g=3 and h=6
vladimir1956 [14]
To answer this question, simply input the values for g and h:

9/ (3) + 2 (6) + 5 = 9/ 3 + 12 + 5
                           = 9/ 20
          

Hope this helps!
6 0
3 years ago
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