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Sergeeva-Olga [200]
3 years ago
10

Is -2/3x - 2 equivalent to -2/3x + (-2)?

Mathematics
2 answers:
adell [148]3 years ago
8 0

Answer: Yes

Step-by-step explanation:

Korolek [52]3 years ago
5 0
Yes it is! So the answer is true/correct
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Solve x^2-6x+25 = 0 by completing the square.
Oksana_A [137]

First, subtract both sides by 25:

x^2 - 6x = -25

Because we're completing the square, we subtract both sides by 9:

x^2 - 6x - 9 = -34

(x - 3) = 5.831 (about)

x = 8.831

3 0
2 years ago
What are the square roots of 1?
Marta_Voda [28]

Answer:

1

Step-by-step explanation:

1^2=1

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2 years ago
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Write 0.000038 in scientific notation.
Norma-Jean [14]
0.000038 = 3.8e-5 = 3.8×10⁻⁵ 
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2 years ago
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What is the hypothesis of the following conditional statement? If we walk home from school, it takes 30 minuets
stellarik [79]
Your answer should be B
6 0
3 years ago
The difference of two rational numbers is always negative true of false
Vlada [557]

Comparing two rational numbers

Use fraction form:

 

Make the denominators the same and compare the numerators. The number with the smaller numerator is smaller. For example, to compare a/b and c/d, we rewrite

 

a/b=a*d/b*d

  = ad/bd and c/d = c*b/d*b=bc/bd

 

Now just compare the numerators : "ad" and "bc"

 

Multiplying and Dividing Rational Numbers 

 

Multiplying and dividing rational numbers in decimal form is the same as multiplying and dividing integers. The decimal place of the product is the same of all decimals of all multiplied numbers. For example, 3.12*2.4.

 

Solution => 3.12*2.4=7.488

 

When multiplying or dividing rational numbers in fractional form, you multiply the numerators (N*N) and then multiply the denominators (D*D).

 

When dividing rational numbers in fractional form, first take the reciprocal of the divisor, and then multiply the numerators and the denominators.

 

Example => 5/9 divided by 2/7 .

 

Solution => 5/9 * 7/2 =  35/18

 

 

Adding Rational numbers

 

Adding and Subtracting rational numbers in decimal form is the same as adding and subtracting integers.

 

Example => -3.54+2.79=-0.75

 

When adding or subtracting rational numbers in fractional form, first make the denominator equal, and then add or subtract the numerators.  

The difference can be negative or positive. 

7 0
3 years ago
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