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Stels [109]
4 years ago
12

Can I have some help please? Algebra 2 is not my strong suit. Multiply: i(4−7i)

Mathematics
2 answers:
gogolik [260]4 years ago
8 0

Answer:

We have the following equation:

i(4-7i)

Multiplying:

4i - 7(i^2)

So we know that i = sqrt(-1), then i^2 = -1.

For that reason:

4i - 7(i^2) = 4i - 7(-1) = 4i + 7

So the answer is: 4i +7

andre [41]4 years ago
5 0

Answer for the problem is 4i-7i^2

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A test for syphilis gives a positive result with probability 0.98 when tested on a person who has the disease. The test gives a
mestny [16]

Answer:

The probability that an individual has the disease and has a positive test result is:

9.8%.

Step-by-step explanation:

Probability of a true positive result for a test of syphilis = 0.98 or 98%

Probability of a false negative result for a test of syphilis = 0.02 or 2% (100 - 98)

Probability of a true negative result for a test of syphilis = 0.9 or 90%

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Therefore, the probability that an individual has the disease and has a positive test result = 0.98 * 0.1 = 0.098 = 9.8%

3 0
3 years ago
PLEASE HELP ASAP <br> I need help finding the rate of change
Talja [164]
G(6)-g(2)/6-2
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50-14/6-2
36/4
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6 0
3 years ago
Help with both please
ipn [44]

Answer:

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the value of log16 4?
stepan [7]
1 ) log ( 16 ) 4 = 1/2
Answer: B ) 1/2
2 ) 125 ^( 9 x - 2 ) = 150
9 x - 2 = log ( 125 ) 150
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3 ) log ( 3 x + 2 ) = 3
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6 0
4 years ago
Please help me or I'm gonna fail math​
12345 [234]

Answer:

Step-by-step explanation:

as said in my comment

A: (3x-2)X(x+1)

B: substitute 3 in(if m=meters),

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9-2

7X(x+1)

3+1

4

7X4

28

5 0
3 years ago
Read 2 more answers
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