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Oxana [17]
3 years ago
6

Solving equation by multiplying

Mathematics
1 answer:
jeka943 years ago
6 0
Do you have a picture of the problem
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Please help I need this
ladessa [460]

Answer:

4+2 i

Step-by-step explanation:

i=\sqrt{-1}

4+\sqrt{-4} =4+\sqrt{-1}  * \sqrt{4} =4+i2

6 0
3 years ago
Read 2 more answers
Rico spent $44 on 8 toy cars. If each toy car cost the same amount of money, how much did each car cost?
bagirrra123 [75]

Answer:

$5.5

Step-by-step explanation:

Divide 44 into 5 to get what each car costs!

6 0
3 years ago
Read 2 more answers
Can someone help me out in these 3 questions??
alisha [4.7K]

Answer:

I'm not completely sure about the first one, but #8 is 0.0419, and #9 is 30500.

5 0
3 years ago
Select True or False for each statement.
mote1985 [20]
<h2>Answer:</h2>

For a real number a, a + 0 = a.  TRUE

For a real number a, a + (-a) = 1.  FALSE

For a real numbers a and b, | a - b | = | b - a |.  TRUE

For real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).  FALSE

For rational numbers a and b when b ≠ 0, is always a rational number. TRUE

<h2>Explanation:</h2>

  • <u>For a real number a, a + 0 = a.  </u><u>TRUE</u>

This comes from the identity property for addition that tells us that<em> zero added to any number is the number itself. </em>So the number in this case is a, so it is true that:

a+0=a

  • For a real number a, a + (-a) = 1.  FALSE

This is false, because:

a+(-a)=a-a=0

For any number a there exists a number -a such that a+(-a)=0

  • For a real numbers a and b, | a - b | = | b - a |.  TRUE

This is a property of absolute value. The absolute value means remove the negative for the number, so it is true that:

\mid a-b \mid= \mid b-a \mid

  • For real numbers a, b, and c, a + (b ∙ c) = (a + b)(a + c).  FALSE

This is false. By using distributive property we get that:

(a + b)(a + c)=a^2+ac+ab+bc \\ \\ a^2+ab+ac+bc \neq a+(b.c)

  • For rational numbers a and b when b ≠ 0, is always a rational number. TRUE

A rational number is a number made by two integers and written in the form:

\frac{u}{v} \\ \\ v \neq 0

Given that a \ and \ b are rational, then the result of dividing them is also a rational number.

7 0
3 years ago
Read 2 more answers
The diameter is the axis of symmetry of a circle. True or false. Please give a counterexample if it is FALSE
Gekata [30.6K]
True.
 The diameter is the axis of symmetry of a circle.
 The diameter divides the circle into two equal parts. Therefore, it can be considered an axis of symmetry. Everything on the right of the diameter is the same as everything on the left of the diameter.
 answer
 True.
6 0
3 years ago
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