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weeeeeb [17]
3 years ago
6

Solve 2x - 8 < 7. A {x | x < 1/2} B {x | x > 1/2}C {x | x < 15/2}D {x | x > 15/2}

Mathematics
1 answer:
sweet [91]3 years ago
6 0

Answer:

c x<15/2

Step-by-step explanation:

first you write your equation

then you add 8 to the right of the equation

then you divide 2x on both sides of the equation

then you will get you answer

then you graph your answer

when you graph it you will have a open circle

then last you will draw a line going left.

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The number of letters in Stephanie's full name is sixteen less than twice the number of letters in Amy's full name. If the numbe
Anestetic [448]

Answer:

19 letters

Step-by-step explanation:

Suppose Number of Amy's full name letters = X

               Number of Stephanie's full name letters = Y

Now, according to given condition that ''number of letters in Stephanie's full name is sixteen less than twice the number of letters in Amy's full name'',

Equation 1 becomes

Y = 2X-16

Now, according to second condition, product of their names' letter is 418. So,

Equation 2 becomes

XY = 418

Deducing value of X from equation 1,

X = (Y+16)/2

Putting this value in equation 2 we get,

{(Y+16)/2}*Y = 418,

By simplifying this equation we get a quadritic equation

(Y^2)+16Y-836=0

By breaking middle term (You can use quadratic formula here as well)

(Y^2)+38Y-22Y-836=0

Y(Y+38)-22(Y+38)=0

(Y-22)(Y+38)=0

At this stage we have two values for Y,

Y=22, or Y=-38

Now considering only positive value since the number of letters in a name can not be in negative number,

Y=22,

So X=(Y+16)/2

X=19

7 0
3 years ago
7 x 28<br> = 7(20 + 8<br> = (7 x 20)+(7<br> = 140 + 56<br> = 196
adell [148]

Answer:B

Step-by-step explanation:

5 0
3 years ago
What are the characteristics of x^2-x+1
SSSSS [86.1K]
It is a quadratic equation, if it is equal to zero. It is not factor able. 
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3 years ago
What is the area of the following polygon? Explain your process for how you arrived at the final area. Show your work
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46 because 14+13=46 and cm
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I believe it’s 1, 3 and 4
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