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OlgaM077 [116]
2 years ago
11

If f(x) = x2 – 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?

Mathematics
1 answer:
Hatshy [7]2 years ago
6 0

Answer:

x = - 2

Step-by-step explanation:

(f + g)(x)

= f(x) + g(x)

= x² - 2x + 6x + 4

= x² + 4x + 4

Equating to zero

x² + 4x + 4 = 0

(x + 2)² = 0

x + 2 = 0

x = - 2

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Find the volume of the cylinder.
Vaselesa [24]

Answer:

160pi

Step-by-step explanation:

the volume of a cylinder is found using the formula V=pi x r² x h. taking r=4 this means we have pi x 16 x10 =160pi

8 0
2 years ago
Tyler is mowing sand from his driveway to the backyard. The wheelbarrow weighs 30 kilograms when it is full of sand. When it is
Stells [14]
Tyler moved 180 kilograms
30-12=18 so 18×2=36 36×5=180
3 0
3 years ago
If someone could please walk me through on how to answer this.
Elis [28]

To isolate c means to separate it completely on one side of the equals sign.


To isolate variables, you apply opposite operations.


In E = mc², m and c are being multiplied together. To separate them, you divide by the variable you want to get rid of. However, you must do this to both sides of the equation always. Whatever you do to one side of the equation you must do to the other side as well. This is so the equation remains true.


Since we want to isolate c, we'll start by dividing both sides by m.


E = mc²

E/m = mc²/m

E/m = c²  --  The m's cancel as 1


Now we have c squared. The opposite of squaring something is taking its square root. Take the square root of each side.


E/m = c²

√(E/m) = √(c²)

√(E/m) = c  --  Opposite operations cancel each other out


And you've isolated c!


Answer:

c = √(E/m)

3 0
3 years ago
A DISASTER RELIEF GROUP DELIVERS 395 FIRST AID KITS. THE GROUP DELIVERS AN EQUAL NUMBER OF FIRST AID KITS TO 3 COUNTRIES. HOW MA
postnew [5]
395/3
about 132
Hope this helped
7 0
3 years ago
Read 2 more answers
A recipe calls for 2 3/4 cups of sugar and 4 1/3 cups of flour. How many cups of sugar are used for every 1 cup of flour?
worty [1.4K]

4 1/3 cup of flour = 2 3/4 cup of sugar

1 cup of flour = 2 3/4 ÷ 4 1/3 = 33/52 cup of sugar <=== answer

6 0
3 years ago
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