All categories

3 years ago

Quadratic equation please help

Mathematics

1 answer:

Andre45 [30]3 years ago

7 0

Answer:

x= -3+√2 or x= -3-√2 ( answer : A and B )

Step-by-step explanation:

hello :

x²+6x+9 = (x+3)².....identity

x²+6x+9 =2 means : (x+3)²=2

so : (x+3 = √2) or (x+3 = - √2)

so two solutions :

x= -3+√2 or x= -3-√2

You might be interested in

You are Miguel Cervantes de Navas y Colon, captain in the Royal Spanish

aliya0001 [1]

Answer:

The answer 385

Step-by-step explanation: APX ......................

8 0

2 years ago

Read 2 more answers

Which measure will help Rita calculate how much the electricity bills vary, on average, from the mean billed amount? The monthly

notsponge [240]

Answer: c

Step-by-step explanation:

because to find the average is to add all your numbers up and to divide them by how many numbers you have

and the median is the finding the middle which is the average you line them up from lowest to greatest value and cross one off from the beginning and one from the end until you are left either one or two values

7 0

3 years ago

Read 2 more answers

Need answer to finish test

PilotLPTM [1.2K]

Answer:

D 30 but im not sure i would go with D tho

Step-by-step explanation:

it might also be a but im not sure sorry

7 0

3 years ago

Jon and Becky measured the circle shaped part of a sun they drew on the sidewalk. The diameter of the circle is 53 centimeters.

UNO [17]

Hello!

To find the area, we use the formula A=pir², where pi=3.14 and r= the radius.

To solve, we find half of the diameter, which is the radius. Half of 53 is 26.5. We square this number and then multiply it by pi. 26.5·26.5=702.25. Now we multiply by pi. 702.25·3.14=2,205.065.

Our final answer is about 2,205.1 cm².

I hope this helps!

3 0

3 years ago

Read 2 more answers

A snack food manufacturer buys corn for tortilla chips from two cooperatives, one in Iowa and one in Illinois. The price per uni

aleksandrvk [35]

Answer:

a. x1 = No. of units to purchase from Iowa

x2 = No. of units to purchase from Illinois

b. Min 6x1 + 5.5x2

c. x1 + x2 ≥ 12000

x1 ≤ 8000

x2 ≥ 6000

Step-by-step explanation:

a. We can consider the variables x1 and x2 as:

x1 = No. of units to purchase from Iowa

x2 = No. of units to purchase from Illinois

b. Price per unit of Iowa corn = $6

Price per unit of Illinois corn = $5.5

Objective function that would minimize the total cost can be written as:

Min 6x1 + 5.5x2

c. The manufacturer needs at least 12000 units of corn which means that the combined number of units from Iowa and Illinois must be greater than or equal to 12000. So, we can write:

x1 + x2 ≥ 12000

The Iowa cooperative can supply up to 8000 units which means that the value of x1 must not be greater than 8000. So, we can write:

x1 ≤ 8000

Similarly, the Illinois cooperative can supply at least 6000 units which means that the value of x2 must not be less than 6000. So, we can write:

x2 ≥ 6000.

The constraints for these conditions are:

x1 + x2 ≥ 12000

x1 ≤ 8000

x2 ≥ 6000

6 0

3 years ago