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marysya [2.9K]
3 years ago
8

11 + 2(z + 3) -z simplified

Mathematics
2 answers:
lbvjy [14]3 years ago
3 0

Answer: z + 17

Step-by-step explanation:

1) DISTRIBUTE:

11 + 2z + 6 - z

2) COMBINE LIKE TERMS

z + 17

Mila [183]3 years ago
3 0
Z+17 if I’m not mistaking
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Convert to a form that reveals the zeros
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Answer:

y=(x-3)(x-6)

Step-by-step explanation:

Factor the expression to give you the result, or you can use the quadratic formula and notice you get 3 and 6.

5 0
4 years ago
What is an imaginary number?
trapecia [35]

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by it's property i² = −1. The square of an imaginary number bi is −b². For example, 5i is an imaginary number, and it's square is −25.

8 0
3 years ago
pd-100 has a half-life of 3.6 days. if one had 6.02 x 1023 atoms at the start, how many atoms would be present after 20.0 days?
Irina18 [472]
<span>half-life means you divide by 2 
21.6 / 3.6 = 6 hf (hf = half-life) 
then you divide by 2^6 
6.02 x 10^23 / 2^6 = 9.40625 x 10^21 atoms 
-------------- 
26 
3hf ===> 2^3 
10.0 / 2^3 = 1.25 gram (remaining) 
answer : 10 - 1.25 = 8.75g 
------- 
27 
128 / 2^n = 2 
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n = 6 
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4 days is the half-live of the sample 
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28 
2.5/4.46 of 50% initial mass 
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---------- 
29 
2^7 = 128 
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30 
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</span>
3 0
4 years ago
A 4.5 kg cat requires medication at a dose rate of 5 mg/kg once daily for the next 7 days. The tablets are available in 10 mg st
Marta_Voda [28]

Answer:

<u>Approximately 16 tablets of medicine</u>

Step-by-step explanation:

Based on the information above , we can use a <u>Rule of Three</u> to first figure out how many mg the cat would need to ingest per day.

\frac{5mg}{1kg} = \frac{x}{4.5kg}

\frac{5mg*4.5kg}{1kg} = 22.5mg

Now we see that the cat needs to take a daily dose of 22.5mg. Since the Tablets come at a strength of 10 mg per tablet then,

22.5 / 10 = 2.25

The cat would need to take 2.25 tablets per day. Since she needs to take the dose for the next 7 days then,

2.25 * 7 = 15.75

She would need to take<u> approximately 16 tablets of medicine</u> during the week .

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0
4 years ago
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