All categories

3 years ago

Please help last question to pass with a 70%

Mathematics

2 answers:

Elena L [17]3 years ago

6 0

Using pythogorus theorem
a=root of 8^2-4^2
a=root48
a=6.9 which is equal to 4root 3
Therefore your answer is F

andreyandreev [35.5K]3 years ago

6 0

A^2+B^2=c^2, c=8 a=4 solving this will give you b=radical 48 this equals radical 3 times radical16 which equals 4 radical 3

You might be interested in

Help guys, I’m sure it’s easy for y’all

Artist 52 [7]

Answer:

(x, y) -------- ( -x,-y)

Rule : Rotation center (0,0) , angle of rotation 180° or -180°

Step-by-step explanation:

The vertices of the object and image have coordinates at ;

D(-4,2), --------D'( 4,-2 ),

E (-1,3), --------E'( 1,-3 ),

F (-1,-3),--------F'(1,3),

G (-3,-4),------G'( 3,4 ),

You notice that after the rotation ;

( x, y )-------change to (-x,-y),

This rule is rotation center origin angle 180°

7 0

3 years ago

X3−3=x9+3 what the answer

dlinn [17]

x = x ≈ − 1.25992104

3 0

3 years ago

Simplify the expression below.<br> 2x – 4y + 6 + 3x – 9y – 4

Dmitrij [34]

Answer:

5x - 13y + 2

Step-by-step explanation:

Given: 2x – 4y + 6 + 3x – 9y – 4

Combine all like terms:

5x - 13y + 2

8 0

3 years ago

Four times the sum of a number and 3 is the same as the sum of two times the number and 8. Find the number.

tino4ka555 [31]

Answer:

Step-by-step explanation:

4 (x + 3) = 2x + 8 <----"four times the sum of a number and three is equal to eight more than twice the number."

Second, we want to solve the equation:

4 (x + 3) = 2x + 8

4x + 12 = 2x + 8

2x + 12 = 8 <-------subtract 2x from both sides of the equation.

2x = -4 <-------subtract -12 from both sides

x = -2 <-------divide both sides by 2 which leaves a negative answer

Third, we want to check the answer by substituting the value of -2 for x in the original equation.

4 (x + 3) = 2x + 8

4 (-2 +3) = 2(-2) + 8

-8 + 12 = -4 + 8

4 = 4

4 (x + 3) = 2x + 8 <----"four times the sum of a number and three is equal to eight more than twice the number."

Second, we want to solve the equation:

4 (x + 3) = 2x + 8

4x + 12 = 2x + 8

2x + 12 = 8 <-------subtract 2x from both sides of the equation.

2x = -4 <-------subtract -12 from both sides

x = -2 <-------divide both sides by 2 which leaves a negative answer

Third, we want to check the answer by substituting the value of -2 for x in the original equation.

4 (x + 3) = 2x + 8

4 (-2 +3) = 2(-2) + 8

-8 + 12 = -4 + 8

4 = 4

8 0

3 years ago

What property does the statement show? (4x8)x3=(8x4)x3

8090 [49]

Why not? Because every math system you've ever worked with has obeyed these properties! You have never dealt with a system where a×b did not in fact equal b×a, for instance, or where (a×b)×c did not equal a×(b×c). Which is why the properties probably seem somewhat pointless to you. Don't worry about their "relevance" for now; just make sure you can keep the properties straight so you can pass the next test. The lesson below explains how I kept track of the properties.

6 0

3 years ago