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3 years ago

1. Find the perimeter of the figure. Each unit is 1 centimeter

Mathematics

1 answer:

Oxana [17]3 years ago

8 0

Answer:

Step-by-step explanation:

count the sides of the boxes for each side of the shape

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PLEASE HELP 20 POINTS solve the system of equations y=-5x-7 and -4x-3y=-1 by substitution.

Ainat [17]

Answer:

Solution: x = -2; y = 3 or (-2, 3)

Step-by-step explanation:

Equation 1: y = -5x - 7

Equation 2: -4x - 3y = -1

Substitute the value of y in Equation 1 into the Equation 2:

-4x - 3(-5x - 7) = -1

-4x +15x + 21 = -1

Combine like terms:

11x + 21 = - 1

Subtract 21 from both sides:

11x + 21 - 21 = - 1 - 21

11x = -22

Divide both sides by 11 to solve for x:

11x/11 = -22/11

x = -2

Now that we have the value for x, substitute x = 2 into Equation 2 to solve for y:

-4x - 3y = -1

-4(-2) - 3y = -1

8 - 3y = -1

Subtract 8 from both sides:

8 - 8 - 3y = -1 - 8

-3y = -9

Divide both sides by -3 to solve for y:

-3y/-3 = -9/-3

y = 3

Therefore, the solution to the given systems of linear equations is:

x = -2; y = 3 or (-2, 3)

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7 0

3 years ago

Jamie took 7 maths tests and got a score of 68,71,71,84,53,62 and 67 .What was Jamie's mode score?

Taya2010 [7]

The modal score would be 71. 71 appears the most in the list.

6 0

3 years ago

Suppose that 10 < n < 11. A possible value for n is

-BARSIC- [3]

★ Inequalities ★

$10 < n < 11 \\$
or n ∈ ( 10 , 11 )
Possible value can be easily obtained by generating an arithmetic mean

$n = \frac{10 + 11}{2} = 10.5$
Else we've infinite numbers between them ,
According to density property of real numbers , we can have any real number satisfying the given inequality under condition 10 < n < 11
Which is true for infinite possible numbers
10.1 , 10.2 , ... INFINITY

8 0

3 years ago

What is the product??

tangare [24]

Answer:

The answer to your question is the third choice

Step-by-step explanation:

To solve this problem, just multiply 6 by each of the numbers of the matrix and simplify.

6 | 4 -2 1 | = | (6 x 4) (6 x -2) (6 x 1) |

| 7 3 0| | (6 x 7) (6 x 3) (6 x 0) |

= | 24 -12 6 |

| 42 18 0 |

The first choice is wrong because only multiply by six the first row.

The second and fourth rows are incomplete.

7 0

3 years ago

Is perpendicular to . How many 90° angles are formed by the intersection?

xxTIMURxx [149]

4, there are 4 equal angles

3 0

4 years ago

1. Find the perimeter of the figure. Each unit is 1 centimeter​

1. Find the perimeter of the figure. Each unit is 1 centimeter