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Alex Ar [27]
3 years ago
6

I need to know how to work it out and get the answer?!.​

Mathematics
1 answer:
Aleks04 [339]3 years ago
6 0

Answer:

x=10

Step-by-step explanation:

20x=200

The first step is to divide both sides by 20. This is because you want x by itself.

20x/20 = 200/20

By doing so, you get x=10.

Hope this helps! Have a great day!

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A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i what is the students mistakes
Rufina [12.5K]

Answer:

1. In the multiplication of the imaginary parts, the student forgot to square of i. OR

2. The student has only multiplied the real parts and the imaginary parts.

Correct value =22+7i.

Step-by-step explanation:

The given expression is

(4+5i)(3-2i)

A student multiplies (4+5i) (3-2i) incorrectly and obtains 12-10i.

Student's mistake can be either 1 or second:

1. In the multiplication of the imaginary parts, the student forgot to square of i.

2. The student has only multiplied the real parts and the imaginary parts.

(4+5i)(3-2i)=4\times 3+5\times (-2)i=12-10i

Which is not correct. The correct steps are shown below.

Using distributive property, we get

4(3-2i)+5i(3-2i)

4(3)+4(-2i)+5i(3)+5i(-2i)

12-8i+15i-10i^2

12+7i-10(-1)       [\because i^2=-1]

12+7i+10

22+7i

Therefore, the correct value of (4+5i)(3-2i) is 22+7i.

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3 years ago
On a test, George was asked to find the square root of 0.45.
Natali5045456 [20]

Answer:

The square route of 0.45 is 0.7.

Step-by-step explanation:

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Which number has the least value?
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Answer:

Your annswer is b

Step-by-step explanation: because it is least than all of the others

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Answer:

Part A

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The answers is 0.036 means that there is a very little chance of obtaining difference of 8points or more by random chance. So, if the difference between treatment group mean and control group mean is at least 8 , then the result is significant which means protein shaken is actually helpful in speeding up the weight-10 process

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What is the answer to 3 = x/12 + 3?
Citrus2011 [14]
The answer is 3.25 hundredths your welcome and thank you for letting me answer your answer bye.
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