All categories

3 years ago

3 + x = 4 is the same as 4 = 3 + x. This is an example of which algebraic property? a.

Mathematics

1 answer:

algol [13]3 years ago

5 0

D. Symmetric Property. If you flip it the = sign will be on the end

You might be interested in

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B7%20%7B%7D%5E%7B7%7D%20%7D" id="TexFormula1" title=" \sqrt{7 {}^{7} }" alt=" \sqr

Mrrafil [7]

Answer:

$\boxed{\tt\blue{=343\sqrt{7}}}$

$\tt\red{=907.4927}$

Step-by-step explanation:

$\sqrt{7 {}^{7} }$

$\sf=343\sqrt{7}$

OR

Decimal:

$\tt=907.4927$

7 0

2 years ago

Read 2 more answers

Solve for x. Round to the nearest tenth, if necessary.

DENIUS [597]

Answer:

x=3.5 cm

Step-by-step explanation:

90/2 = 45 degrees

Soh Cah Toa

We have opposite and hypotenuse making sin.

Length×Sin(Angle)

5×Sin(45) = 3.53553cm

Rounded the the nearest tenth makes 3.5cm

6 0

3 years ago

What is the value of 3-6(z-2) if z=-2

krek1111 [17]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Step-by-step explanation:

Step 1: Define

3 - 6(z - 2)

z = -2

Step 2: Evaluate

Substitute in z: 3 - 6(-2 - 2)
(Parenthesis) Subtract: 3 - 6(-4)
Multiply: 3 + 24
Add: 27

6 0

2 years ago

Read 2 more answers

Select the correct answer from each drop-down menu. A system of equations and its solution are given system A x-y=7 -3x+9y=-39 s

galina1969 [7]

Answer:

Step-by-step explanation:

x-y=7

-3x+9y=-39

Divide the second equation by 3

-x +3y = -13

Add this to the first equation

x-y=7

-x +3y = -13

----------------------

0x +2y = -6

Divide by 2

2y/2 = -6/2

y = -3

Now find x

x-y = 7

x -(-3) = 7

x+3 = 7

Subtract 3 from each side

x = 4

(4,-3)

Or by substitution

x-y=7

solve for x

x = 7+y

-3x+9y=-39

Substitute y+7 in for x

-3(7+y) +9y = -39

Distribute

-21 -3y +9y = -39

Combine like terms

-21 +6y = -39

Add 21 to each side

6y = -18

4 0

2 years ago

WILL MARK BRAINLIEST!!!!!! 25 PTS

LuckyWell [14K]

Answer:

Step-by-step explanation:

SAS stands for side angle side. so in this question we know that one side is equal to another side, but we don't know wether or not there is another angle and another side that is congruent. so for that reason it is not congruent by SAS.

6 0

3 years ago