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mestny [16]
3 years ago
11

1. - x + 5y =-23 4x - y = 16​

Mathematics
2 answers:
Contact [7]3 years ago
8 0
6y=5x=39
Have a good day
True [87]3 years ago
4 0
Other person is correct
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I will mark as brainliest. Area of a square is 25^m. Find its Perimeter. With working please
77julia77 [94]

Answer:

perimeter = 20 m

Step-by-step explanation:

given the area of the square = 25 m² and

area of a square = s² ( where s is the side length ), then

s² = 25 ( take the square root of both sides )

s = \sqrt{25} = 5 ← length of side

perimeter = 4s = 4 × 5 = 20 m


3 0
3 years ago
Can someone one help you will get that crown on you thing if it right
Tcecarenko [31]

Answer:

True

Step-by-step explanation:

When the value of the positive number is the same as the negative number, the sum is zero. The positive number and negative number cancel each other out or simplify. The sum of two negative integers is always negative. When two or more negative numbers are added together, the result or sum is always negative

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3 years ago
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The three consecutive terms
Studentka2010 [4]

Answer:

<h3>1</h3>

Step-by-step explanation:

The nth term of an exponential sequence is expressed as ar^n-1

The nth term of a linear sequence is expressed as Tn = a + (n-1)d

a is the first term

r is the common ratio

d is the common difference

n is the number of terms

Let the three consecutive terms  of an exponential sequence be a/r, a and ar

second term of a linear sequence = a +d

third term of a linear sequence = a + 2d

sixth term of a linear sequence = a + 5d

Now if the three consecutive terms  of an exponential sequence are  the second third and sixth terms  of a linear sequence, this is expressed as;

a/r = a + d ..... 1

a = a + 2d ..... 2

ar = a+ 5d .... 3

From 2: a = a + 2d

a-a= 2d

0 = 2d

d = 0/2

d = 0

Substitute d = 0 into equation 1:

From 1: a/r = a + d

a/r = a+0

a/r = a

Cross multiply

a = ar

a/a = r

1 = r

Rearrange

r = 1

<em>Hence the common ratio of the exponential sequence is 1</em>

 

 

5 0
3 years ago
The side-by-side stemplot below displays the arm spans, in centimeters, for two classes.
Yanka [14]

Answer:

a. The arm spans for Class A have more variability than the arm spans for Class B.

Step-by-step explanation:

The stemplot for the Arm span is given for Class A and Class B. The variability of Class A are higher than variability of Class B. The arm spans of Class A have values greater than Class B. The mean of Class A is greater than Class B.

8 0
2 years ago
If 7x=42,then x=6 is it equality or congruence
Alja [10]

Answer:

Equality

Step-by-step explanation:

x = 6

   7x = 42

7 * 6 = 42

  42 = 42

7 0
3 years ago
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