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2 years ago

???Please help because I don’t understand this at all~Question is the picture

Mathematics

2 answers:

Studentka2010 [4]2 years ago

7 0

Answer:

You will know that b<a

Step-by-step explanation:

Why? Well, it is simple really. They are OPPOSITES. Therefore, the inequality will be opposite.

Example:

a=1, b=2

1<2

a's opposite=-1, b's opposite=-2

-1>-2

-2<-1

sp2606 [1]2 years ago

4 0

When we multiply both sides of an inequality by a negative number the sense of the inequality is swapped.

So if we multiply both sides of

a < b

by -1 we find that

-a > -b

Answer: -a > -b

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Vika [28.1K]

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2 years ago

56% in its simplest form

masha68 [24]

Fourteen over twenty five
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3 years ago

Write an equation of the line in point slope form parallel to y=1/3x-5 through point (3,-7)

Mashcka [7]

Hmmm so, parallel lines have the same slope, so a line that's parallel to y=1/3x-5, will also have the same slope as that one, what would that be anyway? $\bf y=\stackrel{slope}{\cfrac{1}{3}}x-5$ , well, low and behold, since that equation is in slope-intercept form already, we can see is just 1/3.

so, what is the equation of a line whose slope is 1/3 and runs through 3, -7?

 $\bf \begin{array}{ccccccccc}
&&x_1&&y_1\\
% (a,b)
&&(~ 3 &,& -7~)
\end{array}
\\\\\\
% slope = m
slope = m\implies \cfrac{1}{3}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-7)=\cfrac{1}{3}(x-3)\implies y+7=\cfrac{1}{3}(x-3)$

5 0

2 years ago

Read 2 more answers

2. In a given country, records show that of the registered voters, 45% are Democrats, 35% are Republicans, and 20% are independe

Kitty [74]

Answer:

P(R) = 0.14

P(I) = 0.16

P(D) = 0.315

Step-by-step explanation:

Let Democrat = D

Republican = R

Independent = I

If 45% are Democrats, 35% are Republicans, and 20% are independents, then

Total registered voters = 100

In an election, 70% of the Democrats, 40% of the Republicans, and 80% of the independents voted in favor of a parks and recreation bond proposal. That is,

D = 0.7 × 45 = 31.5

R = 0.4 × 35 = 14

I = 0.8 × 20 = 16

If a registered voter chosen at random is found to have voted in favor of the bond, what is the probability that the voter is

a Republican:

P(R) = 14 /100 = 0.14

an Independent

P(I) = 16/100 = 0.16

a Democrat

P(D) = 31.5/100 = 0.315

6 0

2 years ago

Use this image to classify each pair of lines.

irga5000 [103]

Answer:

Parallel

Step-by-step explanation:

7 0

1 year ago