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Rainbow [258]
3 years ago
7

Solve each equation. Explain your reasoning. 3d + 16 = -2(5 – 3d)

Mathematics
1 answer:
slega [8]3 years ago
8 0
3d + 16 = -10 -6d
=_3d + 6
= 1
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La rama de la estadística que solo describe las características de un grupo, sin hacer inferencias o predicciones de las caracte
svp [43]

Answer:

can be either a representation of the entire or a sample of a population. Descriptive statistics are broken down into measures of central tendency and measures of variability (spread).

Step-by-step explanation:

8 0
3 years ago
Solve. If a gallon of milk costs $3 now and the price is increasing 10% each year, how long before a gallon of milk costs $10?
Lelechka [254]

Answer: 12.63 years

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

A = P (1 + r) t  

Where:  

p = original price

r = increasing rate (decimal form)  

t= years  

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log 10/3 = log 1.1^t

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log (10/3)/ log 1.1 =t

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Feel free to ask for more if needed or if you did not understand something.

5 0
3 years ago
The expression n2 + n represents the total number of blocks used in the nth figure of a pattern. Use the equation n2 + n = 56 to
Brrunno [24]

We have to solve this quadratic equation n^{2}+n=56 for n to get <em>which figure has 56 blocks</em>.

n^{2}+n=56\\n^{2}+n-56=0

For middle term factorization, we need <em>two numbers that multiplied gives us -56 and added gives us 1 (coefficient of n).</em>

<em>Such two numbers are </em><em>8</em><em> and </em><em>-7</em><em>. We can now write,</em>

<em>n^{2}+n-56=0\\(n+8)(n-7)=0\\n=-8, 7</em>

<u><em>"There is no negative figure number possible, so we disregard -8"</em></u>

Our answer is 7.


ANSWER: The 7th figure has 56 blocks.


3 0
3 years ago
Read 2 more answers
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Answer:

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3 years ago
Which function has a y-intercept of -16?
Kipish [7]

Answer:

None

Step-by-step explanation:

5 0
3 years ago
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