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2 years ago

What is the sum of the zeros of the function: y= x^2 - 5x + 6?

Mathematics

1 answer:

yawa3891 [41]2 years ago

7 0

Answer:

Step-by-step explanation:

The zeros are the values of x for which y = 0

Quadratic formula

x = [5 ± √(5² – 4·1·6)] / [2·1]

= [5 ± √1] / 2

= [5 ± 1] /2

= 2, 3

sum of zeros = 5

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Which numbers are irrational? Select all that apply.<br> A. 100<br> B. 36<br> C. 27<br> D. 47

vovikov84 [41]

Answer:

none

Step-by-step explanation:

All are rational numbers because each number can be expressed as the quotient of 2 integers:

100÷1

36÷1

27÷1

47÷1

4 0

2 years ago

Florence works in the shipping department of a toy factory that makes radio-controlled helicopters. Small helicopters weigh 3 ki

Damm [24]

Answer:

50 kg

Step-by-step explanation:

Given that:

SMALL HELICOPTERS:

Weight of small helicopters = 3kg

Weight of shipping container = 20kg

LARGE HELICOPTERS:

Weight of large helicopters = 4kg

Weight of shipping container = 10kg

Number of helicopters each shipping container can hold = s ; all of the packed containers will have the same shipping weight

Shipping weight :

(Weight per helicopter * number of helicopter) + weight of shipping container

Shipping weight of Small helicopters :

(3kg * s) + 20

Shipping weight Large helicopters :

(4kg * S) + 10

Shipping weight of Small helicopters = shipping weight of large helicopters

3s + 20 = 4s + 10

20 - 10 = 4s - 3s

10 = s

Hence, member of shipped helicopters = 10

Total shipping weight :

(4 * S) + 10

(4*10) + 10

40 + 10 = 50kg

4 0

2 years ago

a 20 ft piece of string is cut into two pieces so that the longer piece is 5 feet longer than twice the shorter piece. If the sh

oee [108]

Longer piece is 15 and shorter piece is 5

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3 years ago

If the average of 3 numbers and 8 is 25 what is the sum of the three numbers

Gennadij [26K]

Let sum of 3 numbers be x.

Average of 3 numbers and 8 = $\frac{x + 8}{4}$

25 = $\frac{x +8}{4}$

100 = x +8

x= 92.

The sum of 3 numbers is 92.

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2 years ago

Suppose a population contains 80,000 people. All else being equal, a study based on a population sample that includes which of t

Helga [31]

I'd say A. 8000, because you'd get the most answers and the biggest variety in answers for a more accurate sample.

6 0

3 years ago

Read 2 more answers