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Mumz [18]
3 years ago
7

Pls help me and can someone help be my touter

Mathematics
1 answer:
ELEN [110]3 years ago
6 0
Wouldn't it be 6 cm, 8 cm, 10 cm?
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-14(3a+6)=12(6-4a)+12 and steps please
Sunny_sXe [5.5K]

Answer:

In the given equation -14(3a+6)=12(6-4a)+12 the value of a is 28

Step-by-step explanation:

Given equation is -14(3a+6)=12(6-4a)+12

To simplify the given equation:

-14(3a+6)=12(6-4a)+12

Taking all terms to one side

-14(3a+6)-12(6-4a)-12=0

-[14(3a+6)+12(6-4a)+12]=0

Now dividing by negative sign on the above equation we get

14(3a+6)+12(6-4a)+12=0 (using distributive property)

42a+84+72-48a+12=0 ( adding the like terms )

-6a+168=0

-6a=-168

6a=168

a=\frac{168}{6}

Therefore a=28

Therefore in the given equation -14(3a+6)=12(6-4a)+12 the value of a is 28

8 0
3 years ago
*****Write a polynomial using the roots -3,5i. PLEASE HELP IM SO LOST!!!
Vladimir79 [104]
The polynomial (x-a) has a unique root, a, for any a.

Hence (x+3)(x-5i) is a polynomial with roots -3 and 5i
8 0
3 years ago
12. An equation is shown. 8 1/2 - 3 1/? = 5 3/12<br>What is the value of the missing number?​
weeeeeb [17]

Answer:

Step-by-step explanation:

Alright, lets get started.

8\frac{1}{2}-3\frac{1}{?}=5\frac{3}{12}

These are mixed number given.

Suppose the complete mixed number of second place is x.

Converting mixed numbers into fractions.

\frac{17}{2}-x=\frac{63}{12}

Adding x in both sides

\frac{17}{2}=x+\frac{63}{12}

x=\frac{17}{2}-\frac{63}{12}

Making common denominator

x=\frac{102}{12}-\frac{63}{12}

x=\frac{39}{12}

x=\frac{13}{4}

In mixed number form:

x=3\frac{1}{4}

So comparing with given equation, the '?' sign will be equal to 4.

Hence the answer is 4    :  Answer

Hope it will help :)

4 0
3 years ago
Charles wants to determine which car is the fastest. The actual speed of four cars is shown below: Car A B C D Speed (in km/h) 6
marysya [2.9K]

it would be car d because of what the time was on the chart (i did the test and it was correct)

5 0
3 years ago
3x-1=11 solve for the variable
artcher [175]

First, we should add 1 to both sides to isolate the variable:

3x = 12

Now that x is isolated, we divide by 3:

x = 4

6 0
3 years ago
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