3 years ago

Help math is not my subject

2 answers:

6 0

First you would do 3-9 which is -6 then -4-1 which is -5 then since the parenthesis are close to each other you would multiply and you should get

30

Pepsi [2]3 years ago

6 0

(3 - 9)(-4 - 1)

Order of operations = PEMDAS
P = Parentheses
E = Exponents
M = Multiplication
D = Division
A = Addition
S = Subtraction

(3 - 9)(-4 - 1)
(-6)(-4 - 1)
(-6)(-5)
30

(3-9)(-4 - 1) = 30

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yKpoI14uk [10]

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Step-by-step explanation:

Hello, I think I can help you with this.

According to the information provided in the problem, the area of a trapezoid is given by

$A=\frac{a+b}{2} *h\\$

Step 1

solve for a, it means isolate a

$A=\frac{a+b}{2} *h\\divide\ both\ sides\ by\ h\\\\\frac{A}{h}= \frac{\frac{a+b}{2} *h}{h} \\\frac{A}{h}=\frac{a+b}{2}\\\\Now, multiply\ both\ sides\ by\ two\\\\ 2*\frac{A}{h}=2*\frac{a+b}{2}\\2*\frac{A}{h}=a+b\\\frac{2A}{h}=a+b\\\\subtract\ b\ for\ both\ sides\\\frac{2A}{h}-b=a+b-b\\a=\frac{2A}{h}-b$

Have a good day.

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charle [14.2K]

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Step-by-step explanation:

The answer for what does x= is,

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