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uysha [10]
3 years ago
6

Factor completely: x2-4

Mathematics
1 answer:
Lelechka [254]3 years ago
5 0

Answer:

(x+2)(x-2)

Step-by-step explanation

x times x equals x^2, 2 times x equals 2x, -2 times x equals -2x, and 2 times -2 equals -4. If you add that up, the x-values cancel out, leaving the x^2 and the -4. (This explanation is working it backwards which is the easiest way IMO)

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Find the geometric mean of 4 and 8? please i will give you good rating
nordsb [41]

Answer:

5.6568542494924

Step-by-step explanation:

6 0
3 years ago
A granola bite contains 27 calories. Most of the calories come from c grams of carbohydrates. The rest come from other ingredien
Rudiy27

Answer:

5 represent calories from other ingredients

c= 5 1/2 grams

Step-by-step explanation:

Total calories=c grams of carbohydrates + other ingredients

Total calories in granola bite=27

The equation 4c + 5 = 27 represents the relationship between these quantities

1. 5 represent calories from other ingredients

2. Priya said that neither 8 nor 3 could be the solution to the equation

4c + 5 = 27

When the solution is 8

4(8)+5=27

32+5=27

37 =27

Solution 8 gives a higher calories than total calories

When solution is 3

4(3)+5=27

12+5=27

17=27

Solution 3 gives a lower calories than total calories

3. Solution to the equation

4c + 5 = 27

Subtract 5 from both sides

4c+5-5=27-5

4c=22

Divide both sides by 4

c=22/4

=5 2/4

=5 1/2

c= 5 1/2 grams

7 0
4 years ago
Model and solve linear equations<br><br>Solve this.<br>50 + 0.25w = 25 + 0.50w
gavmur [86]
50 = 25 + 0.50w - 0.25w
50 = 25 + 0.25w
50 - 25 = 0.25w
25 = 0.25w
25/0.25 = w
w = 100.
8 0
3 years ago
The formula V = s3 give the volume V of a cube with side length s.
LekaFEV [45]

Answer:

8 inches cubed

Step-by-step explanation:

We get the formula in the task description:

V = s^3

The next sentence tells us s = 2in, so:

V = (2in)^3 = 8in^3

6 0
3 years ago
Read 2 more answers
What is the value of x?<br><br> 3 • (–4) • x = 0<br><br> x =
dedylja [7]
Multiply out
remember thatn (-) times (+)=(-) so
+3 times -4=-12
-12x=0
the only number that will work is 0 since 0 times anything=0

x=0
5 0
3 years ago
Read 2 more answers
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