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3 years ago

Which number is a factor of 18 but not a multiple of 9

Mathematics

2 answers:

joja [24]3 years ago

4 0

Answer:

Step-by-step explanation:

Alina [70]3 years ago

3 0

Answer:

Step-by-step explanation:

Note the factors of 18: 1, 2, 3, 6, 9, 18

Note the multiples of 9: 9, 18, 27, etc.

As you can tell, 1, 2, 3, 6 are all not multiples of 9, but factors of 18, and can be your answer.

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How many solutions does this linear system have? Y=2/3x+2 6x-4y=-10

Vilka [71]

Answer:

It a simultaneous equation so the solution is 2

Step-by-step explanation:

5 0

3 years ago

Solve for x in the equation x 2 - 4 x - 9 = 29.

Marizza181 [45]

Answer:

x= -19

Step-by-step explanation:

2x-4x-9=29

-2x=29+9

x=38/-2

= -19

5 0

3 years ago

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The length of a rectangle is 5 m less than twice the width, and the area is 33 m. Find the dimensions of the rectangle.

MrMuchimi

Check the picture below

it can't be -3... since is width unit, so it has to be the other

and recall that length = 2w - 5

7 0

3 years ago

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Given the function below, what value will result in f(x)=10? f(x)=1/2x+8

nignag [31]

10 = 1/2x + 8
2 = 1/2x
X = 4

5 0

3 years ago

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Suppose an=3an-1 -5an-2 -4an-3. and a4= -7, a5=-36, a6=-85 , find a1 , a2, a3

maria [59]

Answer:

$a_1=4\\\\a_2=0\\\\a_3=3$

Explanation:

The equation is:

$a_n=3a_{n-1}-5a_{n-2}-4a_{n-3}$

and

$a_4=-7, a_5=-36, a_6=-85$

1. Subsittute n = 6 into the equation:

$a_6=3a_{5}-5a_{4}-4a_{3}$

Now subsititute the known values:

$-85=3(-36)-5(-7)-4a_{3}$

You can solve for $a_3$

$-85=-108+35-4a_{3}\\\\4a_3=12\\\\a_3=12/4\\\\a_3=3$

2. Substitute n = 5 into the equation:

$a_5=3a_{4}-5a_{3}-4a_{2}$

Substitute the known values and solve for $a_2$

$-36=3(-7)-5(3)-4a_{2}\\\\4a_2=-21-15+36=0\\\\a_2=0$

3. Substitute n = 4 into the equation, subsitute the known values and solve for $a_1$

$a_4=3a_{3}-5a_{2}-4a_{1}$

$-7=3(3)-5(0)-4a_{1}\\\\4a_1=9+7=16\\\\a_1=4$

7 0

3 years ago