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Ksenya-84 [330]
3 years ago
8

The width of a rectang:a is half of its length. If the length is 8 cm, what is

Mathematics
1 answer:
9966 [12]3 years ago
6 0

Answer:24cm

Step-by-step explanation:

if there is 2 sides  with the same like the length is 8 and 2 sides(8*2)=16

and the width is half (8/2) =4 double for 2 sides (4*2) = 8

8+16

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P=2L+2W<br><br>solve for L <br>do the entire equation
VashaNatasha [74]
HEY THEIR!!

Taking commen 2 in RHS
p = 2 (L+W )

Divide by 2 on both sides.
p/2 = L+W

Subtract W on both sides.
p/2 - W = L

or L = p/2- W

HOPE IT HELPS YOU
6 0
3 years ago
Factor completely. 12x4+18x3+45x2 Enter your answer in the box.
lukranit [14]

QUESTION 1

The given expression is

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The greatest common factor is 3x^2.

We factor to obtain;

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QUESTION 2

The given quadratic equation is

x^2+6x-72=0

We split the middle term to obtain

x^2+12x-6x-72=0

Factor by grouping;

x(x+12)-6(x+12)=0

(x+12)(x-6)=0

Use zero product property;

(x+12)=0\:\:or\:\:(x-6)=0

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QUESTION 3

The given system of equation is

3x+4y=-8

7x-3y=6

If we multiply 3x+4y=-8 by 3, we obtain;

9x+12y=-24

If we multiply 7x-3y=6 by 4 we obtain;

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Adding the last two equations will give us;

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The y-variable is eliminated.

Answer:Multiply 3x+4y=−8

by 3. Multiply 7x−3y=6 by 4. Add the resulting equations together.

6 0
3 years ago
Identify two tables which represent quadratic relationships
lord [1]

Answer:

Tables 3 and 5

Step-by-step explanation:

if you know that quadratic equations from curves, then, check out the number patterns on 3 and 5, then, compare them with the others, you'll see

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OPTION A , C,D

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Credit Cards have 16 digit numbers, of which the first 15 digits identify the credit card and the sixteenth digit is the check d
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The answer is B. 3 (10^13)

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