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3 years ago

Add the expressions 4 minus two-thirds b + one-fourth a and One-half a + one-sixth b minus 7. What is the simplified sum?

Mathematics

2 answers:

katen-ka-za [31]3 years ago

6 0

Answer:

It is B) 3/4a-1/2b-3

Step-by-step explanation:

I did the instructions :)

Delicious77 [7]3 years ago

6 0

Answer:

Step-by-step explanation:

i did test and i got it right so i hope this helps

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Question 1<br><br> Which choice shows a 90° clockwise rotation of the figure about the point P?

Arada [10]

The third one is correct.....so go for it without hesitation

6 0

3 years ago

Peter has 3200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed a

salantis [7]

Answer:

$A = 640000\,yd^{2}$

Step-by-step explanation:

Expression for the rectangular area and perimeter are, respectively:

$A (x,y) = x\cdot y$

$3200\,yd = 2\cdot (x+y)$

After some algebraic manipulation, area expression can be reduce to an one-variable form:

$y = 1600 -x$

$A (x) = x\cdot (1600-x)$

The first derivative of the previous equation is:

$\frac{dA}{dx}= 1600-2\cdot x$

Let the expression be equalized to zero:

$1600-2\cdot x=0$

$x = 800$

The second derivative is:

$\frac{d^{2}A}{dx^{2}} = -2$

According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

$y = 800$

The maximum area is:

$A = (800\,yd)\cdot (800\,yd)$

$A = 640000\,yd^{2}$

8 0

3 years ago

Read 2 more answers

If a•b=b, what must the value of a be?

Mila [183]

Answer: I think f

Step-by-step explanation:

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3 years ago

Mark on the lines whether the statement is correct about the graphs.

quester [9]

Answer:

1.= Correct

2.= False(Raul has a negative slope and Becky has a positive, it is not both positive so FALSE)

3.= Corect(They both cross on the x and y axis.)

Step-by-step explanation:

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2 years ago

Tanzania [10]

Answer:

$45.50

Step-by-step explanation:

1. $65.00 ÷ 100 = 0.65

2. 0.65 x 30 = $19.50

3. $65.00 - $19.50 = $45.50

4 0

2 years ago