All categories

3 years ago

Please Help me with this question i don't even know what to do.

Mathematics

1 answer:

Gekata [30.6K]3 years ago

4 0

Answer:

D is the answer

Step-by-step explanation:

Step 1 :

Equation at the end of step 1 :

((0 - 5x2) - 8x) - 11 = 0

Step 2 :

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

-5x2 - 8x - 11 = -1 • (5x2 + 8x + 11)

Trying to factor by splitting the middle term

3.2 Factoring 5x2 + 8x + 11

The first term is, 5x2 its coefficient is 5 .

The middle term is, +8x its coefficient is 8 .

The last term, "the constant", is +11

Step-1 : Multiply the coefficient of the first term by the constant 5 • 11 = 55

Step-2 : Find two factors of 55 whose sum equals the coefficient of the middle term, which is 8 .

You might be interested in

How do you graph an inequality on a graph?

Kipish [7]

Answer:

1. Rearrange the equation so "y" is on the left and everything else on the right.

2. Plot the "y=" line (make it a solid line for y≤ or y≥, and a dashed line for y< or y>)

3. Shade above the line for a "greater than" (y> or y≥) or below the line for a "less than" (y< or y≤).

Hope this helps UwU

5 0

3 years ago

Read 2 more answers

To practice for a competition, Kate swam 710 meters in the pool each day for 3 weeks. How many kilometers did Kate swim in those

gayaneshka [121]

Answer:

14910 meters

Step-by-step explanation:

3 weeks= 21 days

each day= 710 m

21 days= 710*21

21 days= 14910 m

8 0

2 years ago

Hannah wants to buy a new shirt the original price is 32.75 but it is on sale for 40% off . what is sale price of the shirt

kati45 [8]

1) 32.75 times .40= 13.10
2) 32.75-13.10=19.65
The sale price is $19.65

4 0

4 years ago

11. The completion of a chemical reaction is expressed by the equation y = 300 - 4x - XP, where y is

alina1380 [7]

Answer:

The reaction ca occur at 10 degree Celsius or -14 degree Celsius.

Step-by-step explanation:

We are given the following in the question:

The completion of a chemical reaction is expressed by the equation

$y = 300 - 4x -x^2$

where y is the number of seconds needed to complete the reaction and x is the temperature in degrees Celsius at which the reaction occurs.

We have to find the temperature at which the reaction occurs, if the completion time of reaction is 160 seconds.

Putting y = 160

$160 = 300 - 4x -x^2\\x^2 + 4x - 140 = 0\\x^2 + 14x -10x -140 = 0\\x(x+14)-10(x+14)=0\\(x-10)(x+14) = 0\\(x-10) =0, (x+14) =0\\x = 10, x = -14$

Thus, the reaction ca occur at 10 degree Celsius or -14 degree Celsius.

5 0

3 years ago

How to solve -c(11c + 4)

saul85 [17]

Answer:

-11 $c^{2}$ - 4c

Step-by-step explanation:

You have to distribute the -c to both of the numbers in the parentheses, so the eleven would become negative, and c multiplied by c is c squared. The positive 4 becomes negative 4, and 4 times c is 4c. Hope that helps!

8 0

4 years ago

Read 2 more answers