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Cerrena [4.2K]
2 years ago
5

If you know that a < b, and both a and b are positive numbers, then what must be true about the relationship between the oppo

sites of these numbers? Explain.
Mathematics
2 answers:
nlexa [21]2 years ago
8 0
What ever number A is, it is going to be less than whatever number B is.
Nesterboy [21]2 years ago
4 0
If a<span> is less than </span>b<span>, and they are both positive, then </span>a<span> is closer to 0 than </span>b<span>. The opposite of </span>a<span> is also closer to zero than the opposite of </span>b<span>, so the opposite of a must be larger than the opposite of </span>b. T<span>he number further left on a number line is the smaller number, for positive numbers, the number closest to zero is smaller.</span>
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7) CJ was painting his apartment. In 15 minutes,
igomit [66]

y = 12x represents the gallons of paint used in x hours.

Step-by-step explanation:

CJ uses 3 gallons of paint in 15 minutes,

15 minutes = 3 gallons

1 minutes = \frac{3}{15} = \frac{1}{5} \ gallons\\

1 hour = 60 minutes

Gallons of paint used in 1 hour;

1 hour = \frac{1}{5}*60=12\ gallons

CJ uses 12 gallons of paint in 1 hour.

For x hours = 12*x = 12x

Gallons of paints used = y

y = 12x represents the gallons of paint used in x hours.

Keywords: linear equation, multiplication

Learn more about multiplication at:

  • brainly.com/question/10048445
  • brainly.com/question/10177389

#LearnwithBrainly

5 0
2 years ago
(a) Find a vector-parametric equation r⃗ 1(t)=⟨x(t),y(t),z(t)⟩r→1(t)=⟨x(t),y(t),z(t)⟩ for the shadow of the circular cylinder x2
motikmotik

Answer: (a) r1(t) = <2cost , 0 , 2sint>

(b) <2cost , (1 - 12sint - 10cost)/8 , 2sint>

Step-by-step explanation:

x2+z2=4

a)

Now, in the xz plane, we know that y = 0...

So, x^2 + z^2 = 4 will simply be a circle centered at (0,0)..

This can be easily parameterized as

x = 2cos(t)

z = 2sin(t)

So, the required parameterization is :

r1(t) = <2cost , 0 , 2sint>

b)

Cylinder : x^2 + z^2 = 4

Plane : 5x+8y+6z=1

Easily enough, the x^2 + z^2 = 4 can again be parameterized as

x = 2cost , z = 2sint

With this, we can find y using plane equation...

5x+8y+6z=1

5(2cost) + 8y + 6(2sint) = 1

8y = 1 - 12sint - 10cost

y = (1 - 12sint - 10cost)/8

So, the parameterization is :

<2cost , (1 - 12sint - 10cost)/8 , 2sint>

6 0
2 years ago
Alexis wanted to understand whether grade level had any relationship to their opinion on extending the school day. She surveyed
MakcuM [25]

Actually there is enough information to solve this problem. First, let us find the total per row and per column.


 (see attached pic)


P(Grade 10 | opposed) with P(opposed | Grade 10)

P(Grade 10 | opposed) = Number in Grade 10 who are opposed / Total number of Opposed (column)

P(Grade 10 | opposed) = 13 / 41 = 0.3171

 

P(opposed | Grade 10) = Number in Grade 10 who are opposed / Total number in Grade 10 (row)

P(opposed | Grade 10) = 13 / 32 = 0.4063

 

Therefore:

P(Grade 10 | opposed) IS NOT EQUAL P(opposed | Grade 10), hence they are dependent events.

 

Answer:

P(Grade 10 | opposed) < P(opposed | Grade 10)

6 0
2 years ago
Read 2 more answers
As the weight of purchased items increases, the shipping charges increase, as shown in the table below. Weight, in oz Total Ship
ankoles [38]
The correct answer is beginning at 5 ounces, the graph is discontinuous every 5th integer of the domain.

It is a step function; there is not a continuous increase between values.  The shipping level is fixed for each price, then jumps to the next tier.  This will be a discontinuous graph.
6 0
2 years ago
Read 2 more answers
The perimeter of a rectangle is represented by 4x2 + 5x − 2. The perimeter of a smaller rectangle is represented by x2 + 3x + 5.
REY [17]
<span>4x2 +5x - 2 -x2 +3x +5 Simplified: 3x2 + 8x +3 In order to determine the difference in size, you must subtract the perimeter of the smaller rectangle from the perimeter of the larger rectangle.</span>
6 0
2 years ago
Read 2 more answers
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