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MakcuM [25]
3 years ago
6

I need help with #14 & #16

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
3 0
14 is 40 because it is the only number not in the range around 80-90 and 16 is 3,000 because it is the only number in the thousands, it is not in the hundreds like the other numbers.
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Multiply: (x + 3)(x-4)
Ratling [72]

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12

5 0
3 years ago
What must be included in an algebraic
Lemur [1.5K]

Answer:

B. you need atleast one variable for an algebraic expression.

an equals sign would make it an algebraic equation,

just a coefficient and a variable is the most basic algebraic expression. you don't need anything other than those for an expression. you can have more than one number, and more than one operation, but they don't have to be there.

Step-by-step explanation:

i hope this helps :))

8 0
2 years ago
ALGEBRAIC PROOF!!!! PLS HELP!!! The area of a rectangular blanket is 20 square feet. The blanket's length is (2x + 1) ft and the
Fynjy0 [20]

Answer:

Length: 5 ft; width: 4 ft.

Step-by-step explanation:

A = LW     formula for area of rectangle

(2x + 1)(2x) = 20      substitute length, width, and area into formula

4x² + 2x - 20 = 0      use the distributive property to multiply out left side

2x² + x - 10 = 0         divide both sides of equation by 2

(2x + 5)(x - 2) = 0        factor out trinomial

2x + 5 = 0  or  x - 2 = 0        use zero product rule to solve for x

2x = -5  or x = 2       subtract 5 from both sides; add 2 to both sides

x = -5/2  or  x = 2

We discard x = -5/2 since it would give negative length and width, and the length and width cannot be negative.

Length: 2x + 1 = 2(2) + 1 = 5

Width: 2x = 2(2) = 4

Length: 5 ft; width: 4 ft.

7 0
2 years ago
7 over 2 as a mixed number ​
ivanzaharov [21]

Answer:

3 1/2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Consider the function represented by the equation y-6x-9=0. Which answer shows the equation written in function notation with x
hichkok12 [17]
Y=6X+9 the A is #1                                              
all you need to do is simp the equation 
4 0
3 years ago
Read 2 more answers
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