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VARVARA [1.3K]
3 years ago
9

Find the value of x that makes the equation true. 12x=4(x+2)+20

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
3 0

Answer:

7/2

Step-by-step explanation:

12x=4(x+2)+20

12x=4x+8+20

12x-4x=8+20

8x=28

x=28/8

simplify

x=7/2

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Describe el perimetro
mrs_skeptik [129]
<span>Tomás compró 350 metros de malla galvanizada para vallar el perímetro del lote</span>
3 0
3 years ago
Match the numbers in scientific notation with the corresponding numbers in standard notation. 2.32E9
andre [41]

Complete question :

Match the numbers in scientific notation with the corresponding numbers in standard notation.

232,000,000

0.00000431

2,320,000,000

0.000000000000431

2.32E9

2.32E8

4.31E-13

4.31E-6

Answer:

2.32E8 = 232,000,000

2.32E9 = 2,320,000,000

Step-by-step explanation:

2.32E8 - - > 8 digits after the decimal point ; 232,000,000

2.32E9 - - > 9 digits after the decimal point ;

2,320,000,000

4.31E-13 - - > 13 preceeding 0's before digit '4' ; 0.000000000000431

4.31E-6 - - > 6 preceeding 0's before digit '4' ; 0.000000000000431

8 0
2 years ago
Factor each completely
avanturin [10]
K^2-5k-50
(k-10)(k+5)

This is because k*k=k^2 (your first term), 5k-10k=-5k (your second term) and -10*5=-50 (your last term).

Distribute to check.
3 0
3 years ago
Fred and Sue want to fence in a rectangular area in their yard for a vegetable garden. Suppose that they have 30 feet of fencing
larisa [96]

Answer:

a=35x−x^2

Step-by-step explanation:

Having  

70 ft of fencing with a  

width of x

feet and knowing the perimeter of a rectangle is  

p=2w+2l

we can state the length of the garden as:

70=2x+2l

and solving for  l

we know the length with be:

2l=70−2x or l=35−x  

And then knowing the formula for the area of a rectangle is  

a=w⋅l

we can write the equation as:

a=x⋅(35−x)a=35x−x^2

6 0
3 years ago
Read 2 more answers
(2/3) To the power of 4
Serga [27]

Answer:

(2/3)^4=16/81

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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