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3 years ago

Which is a simplified form of the expression -2b – 3(2b + 1)?

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

Answer:

Step-by-step explanation:

We need to use the distributive property to expand this.

The property is:

a(b+c) = ab + ac

So, the part " -3(2b+1) " will becomes:

-3(2b+1) = (-3)(2b) + (-3)(1) = -6b - 3

So, the problem becomes:

-2b -3(2b+1) = -2b -6b -3

Now, we add like terms:

-2b - 6b - 3

(-2-6)b - 3

-8b - 3

This is the correct answer, answer choice C

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Find the value of each variable so that the quadrilateral is a parallelogram.

Vaselesa [24]

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Answer:

x = 21

y = 25

Step-by-step explanation:

The diagonals of a quadrilateral bisect each other, so each half of a diagonal is congruent to the other half.

x -2 = 19

x = 21 . . . . add 2

y +1 = 26

y = 25 . . . . subtract 1

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3 years ago

What equation is represented by the graph below

mamaluj [8]

Answer:

y= -2/3x - 2

Step-by-step explanation:

So, the easiest thing to find first is your y-intercept, or the point in which the line crosses the y-axis. In this graph, the y intercept would be -2. Now, we can find the slope. One way to find the slope is to start at a point and count the numbers it rises and then the number it runs. Or, you can choose two points, like (0,-2) and (3,-4) and use the formula for slope, (y2-y1) / (x2-x1). Plug those numbers in and get (-4 minus -2)/ (3 minus 0), which would give you -2/3.

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3 years ago

Dimensional Analysis

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If the car is traveling at 36ft/s per converted mph divide the amount of travel length the person will travel and subtract is by 1 this being the second tracked which is 36ft/s

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4 years ago

Describe the relationship between compound interest and exponential growth

Gennadij [26K]

Answer:

Relationship between compound interest and exponential growth

C.I = $P[(1 + \frac{R}{100})^{n} - 1]$

where, P =Principal

R =Rate of interest, n= Duration i.e time interval for which money has been taken, C.I =Compound Interest

Exponential growth = A $(1+\frac{K}{100})^s$

Where , A=Initial value of population, K= Rate at which population is declining in percentage, s=total time between starting population and final population

Now , If you compare between Exponential growth and compound interest

P→(Replaced by)→A,

R→(Replaced by)→K,

n→(Replaced by)→s,

As C.I is calculated for money, and Exponential word is used for both money as well as increase in population.

So, just replacing keeping the meaning same

C.I = $P[(1 + \frac{R}{100})^{n}]$ - P

→Compound Interest = Exponential growth - Initial Value(either money or any population considered)

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3 years ago

IS IT 60 CAN SOMEONE TELL DID I CLICK IT RIGHT ?

natima [27]

hi how have you been and i think u did get it right

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3 years ago