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kondaur [170]
3 years ago
10

Are the expressions equivalent? Use j = 3 and j = 8 to determine if they are.

Mathematics
2 answers:
koban [17]3 years ago
8 0

Answer:

the one above me is right

Step-by-step explanation:

evidences

S_A_V [24]3 years ago
3 0

Answer:

No, because when j = 8, the values of the expressions are different.

Step-by-step explanation:

if its wrong i'm sorry

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Given a triangle with side lengths of a, b, and c, where c is the longest side, which statement is true?
PtichkaEL [24]

Answer:

It is C. If a2 + b2 =c2, then the triangle is a right triangle.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
7x31=????????????????
Hunter-Best [27]

Answer:

217

Step-by-step explanation:

  1. 7 × 31 = 217

I hope this helps!

8 0
3 years ago
Choose three intervals on the real number line that contain both rational and irrational numbers. Do you think that any given in
Helen [10]

Any real number line ranges from negative infinity to positive infinity. A real number number line consists of all the rational and irrational numbers. Let us take three intervals which contain both the rational and irrational numbers.

First interval:  [3,4]

Since every integer is a rational number, 3 and 4 are both rational. In this interval there occurs the value of π (3.14159..) which is an irrational number.

Second interval :  [0,2]

0 and 2 are integers and hence are rational. In this interval, occurs √2 (1.41421...) is an irrational number.

Third interval : [2,3]

In this interval, Eulers number 'e' lie whose value is (2.718281.. )

Hence we can conclude that, there occurs an irrational number between any two rational number.

3 0
3 years ago
4. What is the system of equations that describes the following graph?
GarryVolchara [31]

Answer:

The system of inequalities is

y

y>0.25x

Step-by-step explanation:

step 1

Find the equation of the dashed line with negative slope

The line passes through the points

(0,-2) and (-2,0)

Find the slope

m=(0+2)/(-2-0)=-1

Find the equation of the line in slope intercept form

y=mx+b

we have

m=-1\\b=-2

substitute

y=-x-2

The solution of the inequality is the shaded area below the dashed line

therefore

The equation of the inequality A is

y

step 2

Find the equation of the dashed line with positive slope

The line passes through the points

(0,0) and (4,1)

Find the slope

m=(1-0)/(4-0)=0.25

Find the equation of the line (direct variation)

y=kx

we have

k=0.25

substitute

y=0.25x

The solution of the inequality is the shaded area above the dashed line

therefore

The equation of the inequality B is

y>0.25x

therefore

The system of inequalities is

y

y>0.25x

4 0
3 years ago
Make r the subject of the formula:<br> U=v+2t
bearhunter [10]
U=v+ 2t=
U/2t = r+2t/2t
=U/2t=r OR. r= U/2t
8 0
3 years ago
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