Which expressions are equivalent to 4^-3 / 4^-1

Mathematics

2 answers:

Masja [62]3 years ago

4 0

the answer is b and no if u thank me 937 jk

storchak [24]3 years ago

3 0

Answer:

<h3>The answer is A and B</h3>

Step-by-step explanation:

Because 4 to the power of -3 divided by 4 to the power of -1 switched (Like when there is a negative exponent you move the number or variable to the other side of the fraction) and scince both have a negative number you switch both. and 1-3 is -2 so you switch it to the bottem and put a 1 at the top.

 ^^Hope this helps!

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What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?

Pepsi [2]

X=4
Step 1: Simplify both sides of the equation.
1.5(x+4)-3=4.5(x-2)
(1.5)(x)+(1.5)(4)+ -3 =(4.5)(x)+(4.5)(-2)
(1.5x) + ( 6+-3) =4.5x - 9
(Combine like terms)
1.5x+3=4.5x-9

Step 2: Subtract 4.5x from both sides.
1.5x +3 -4.5x =4.5x=-9-4.5x-3x+3=-9

Step 3: Subtract 3 from both sides.
-3x+3-3=-9-3
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Step 4: Divide both by -3
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6 0

3 years ago

Question 3

REY [17]

Question 3
Solve for d.

13d + 4 = 43
13d = 39
d = 3

answer
A. 3

Question 4
Solve for r.

4r - 6 = 30
4r = 36
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answer

D. 9


Question 5
Solve for u.

126 = 6u
u = 126/6
u = 21

answer

B. 21

4 0

3 years ago

Which statement describes the system of equations?

qwelly [4]

Answer:

Step-by-step explanation:

-5x-4y=-4 ...(1)

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multiply (1) by -5 you have : 25x+ 20y = 20 ....(2) same equation , same line

so : The system has infinitely solutions.

3 0

3 years ago