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Setler [38]
3 years ago
15

Solve for x. 38(2x+16)−2=13

Mathematics
2 answers:
agasfer [191]3 years ago
8 0
38(2x+16)−2=13 Multiply the number outside of the parenthesis with the numbers inside the parenthesis 76x+608-2=13 Subtract 608 from both sides 76x-2=-595 Add 2 to both sides 76x=-593 Divide 76 on both sides Final Answer: x= -7.8
svetlana [45]3 years ago
6 0
38(2x+16)-2=13
76x+608-2=13
76x+606=13
76x=-593
x=-7.8
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Solve the following system of equations using substitution.
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3 years ago
Use the parabola tool to graph the quadratic function f(x)=x2−12x+27. Graph the parabola by first plotting its vertex and then p
alina1380 [7]

Answer:

vertex is (6 , -9)

points are (9,0) and (3,0)

Step-by-step explanation:

Given quadratic function f(x)=x^2-12x+27

We have to plot the given quadratic function.

Consider the Given quadratic function f(x)=x^2-12x+27

The general form of quadratic function  is given f(x)=a(x-h)^2+k

Where, (h, k)  is vertex , given  h =\frac{-b}{2a} and k = f(h)  

Thus, for given quadratic function f(x)=x^2-12x+27

a = 1 , b= -12 , c = 27

Thus,

h =\frac{-b}{2a}=\frac{12}{2}=6

k = f(h) that is f(12) = (6)^2 - 12× 6 +27 = 36 - 72 + 27 = - 9

Thus, given  quadratic function f(x)=x^2-12x+27 in standard form is f(x)=(x-6)^2-9  

Thus, vertex is (6 , -9)

For second point put f(x)=0  , we get,

f(x)=(x-6)^2-9=0  

\Rightarrow (x-6)^2-9=0  

\Rightarrow (x-6)^2=9  

\Rightarrow (x-6)=\pm 3  

\Rightarrow x= 6\pm 3  

Thus, \Rightarrow x=6+3=9 and \Rightarrow x=6-3=3  

thus, points are (9,0) and (3,0)

Graph is attached below.

5 0
4 years ago
Please help me thank you
telo118 [61]

The answer is ...

Parallel

7 0
3 years ago
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jok3333 [9.3K]
If u ask to √27 is en even number so of course it's gonna be 5.19615242270663 so ÷that by 49 is 0.10604392699401
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3 years ago
What is 5 and 1/6 as an a/b fraction form.
natali 33 [55]
5 1/6 is a mixed number. To put it into a/b fraction form means converting it to an improper fraction.

Multiply the denominator by the whole number then add the numerator. Put that over the original denominator.

5 1/6 = 6•5+1/ 6 = 31/6
5 0
4 years ago
Read 2 more answers
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