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Sholpan [36]
3 years ago
8

Solve this trinomial Z^2 + z = -20

Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

your answer is a complex number making your question wrong

Step-by-step explanation:

First z²+z+20=0, just to make it a quadratic equation, so we can use the quadratric formula:

x=( -b±√b²-4ac)/2a

so to find a b and c we compare

YOUR QUESTION SHOULD BE Z² +Z-20=O.

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A full grown German Shepherd weighs about 35 kg on Earth and only 13.3 kg on Mars. How much would a German Shepherd puppy weigh
7nadin3 [17]

Answer:

Step-by-step explanation:5 pounds

35/13.3=2.63. 1.9x2.63=5kg

6 0
3 years ago
What interest will be earned if $6300 is invested for 3 years at 12% compounded monthly?  Write your answer rounded to the neare
Butoxors [25]
Answer:
Interest earned = 2713.8

Explanation:
We will solve this problem on two steps:
1- get the final amount after three years
2- get the interest earned by subtracting the initial amount from the final one.

1- getting the final amount after 3 years:
The formula that we will use is as follows:
A = P (1 + r/n)^(nt)
where:
A is the final amount we want to calculate
P is the initial amount = 6300
r is the interest = 0.12
n is the number of compounds per year =12
t is time in years = 3

Substitute to get the final amount:
A = P (1 + r/n)^(nt)
A = 6300 (1 + 0.12/12) ^ (12*3)
A = 9013.8

2- getting the interest earned:
Interest earned = final amount - initial amount
Interest earned = 9013.8 - 6300
Interest earned = 2713.8

Hope this helps :)
7 0
3 years ago
Read 2 more answers
1/2y^2(6x+2y+12x-2y) is equivalent
vazorg [7]
The answer is 9y^2x(the 2 goes on top were the arrow is ) Hope this was helpful!
3 0
3 years ago
The mean temperature for the first 7 days in January was 4 °C. The temperature on the 8th day was 3 °C. What is the mean tempera
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Answer:

Mean temperature for the first 8 days was  3.88^\circ

Step-by-step explanation:

Mean = \frac{4\cdot 7+3\cdot 1}{8}

=3.88^\circ

Best Regards!

3 0
3 years ago
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What Is 0.005 in percent form
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To change 0.005 to a percent, just multiply by 100. = 0.005 * 100 = 0.5

Therefore, your answer would be 0.5%

3 0
3 years ago
Read 2 more answers
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