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3 years ago

How do you use multiplication to find the perimeter of a square

2 answers:

8 0

Since a square has 4 equal sides, you can take the base x the height. So if your square is a 4x4, you can just multiply 4 x 4. It would be the same as adding 4+4+4+4

scoundrel [369]3 years ago

7 0

Multiply 4 by the length of a side

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Please help What is the perimeter of PQR? Show your work.

9966 [12]

17 is the answer

3y-2=y+4
2y-2=4
2y=6
2y/2=6/2
y=3

5 0

3 years ago

Which congruence criteria can be used directly from the information about triangles HIJ and MNO to prove IJ¯¯¯¯¯¯≅MN¯¯¯¯¯¯¯¯¯¯ b

skelet666 [1.2K]

Answer: $\overline{IJ}\cong \overline{MN}$

Step-by-step explanation:

Given: In triangle HIJ and triangle MNO we have

$\overline{HI}\cong \overline{NO}, \angle{I}\cong \angle{N} ,\angle{H}\cong \angle{O}$

here, HI and NN are the included side between ∠I & ∠H and ∠N and ∠O.

So , by ASA congruence rule,

ΔHIJ ≅ ΔMNO

So by CPCTC (corresponding parts of the congruent triangles are congruent)

$\overline{IJ}\cong \overline{MN}$

7 0

2 years ago

4x - 2y = -20 7x + 2y = -2

Brut [27]

Answer:

(-2, 6)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

4x - 2y = -20

7x + 2y = -2

Step 2: Rewrite systems

4x - 2y = -20

Add 2y to both sides: 4x = 2y - 20
Divide 4 on both sides: x = 1/2y - 5

Step 3: Redefine systems

x = 1/2y - 5

7x + 2y = -2

Step 4: Solve for y

Substitution

Substitute in x: 7(1/2y - 5) + 2y = =-2
Distribute 7: 7/2y - 35 + 2y = -2
Combine like terms: 11/2y - 35 = -2
Add 35 to both sides: 11/2y = 33
Isolate y: y = 6

Step 5: Solve for x

Define original equation: 7x + 2y = -2
Substitute in y: 7x + 2(6) = -2
Multiply: 7x + 12 = -2
Subtract 12 on both sides: 7x = -14
Divide 7 on both sides: x = -2

Step 6: Graph systems

Check the system.

8 0

3 years ago

Miguel’s team won the game. What is the negation of this statement?

Pavel [41]

Answer:

answer: "Miguel's team did not win the game".

Step-by-step explanation:

Negation of a statement means if a statement is true then it's negation is false and if a statement is false then it's negation is true.

Here, we are given a true statement "Miguel's team won the game" so it's negation will be a false statement "Miguel's team did not win the game".

6 0

3 years ago

Solve the following system using substitution. Remember to record your answer as (x, y).

natta225 [31]

Answer:

You already have what you are going to substitute, just put the y values from the first equation into the second! Like this:

6x - 5(-2x - 9) = -19

Multiply it out:

6x +10x +45 = -19

Add like terms + simplify:

16x + 45 = -19

16x = -64

x = -4

take that x and put it back into the first equation!!

y = -2(-4) -9

y= 8-9

y= -1

so... your answer is (-4, -1)

hope this helps!

4 0

2 years ago