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3 years ago

4 to the power of -5.

Mathematics

2 answers:

LekaFEV [45]3 years ago

6 0

Answer:

Step-by-step explanation:

To solve this problem, first, you have to use the order of operations stands for (Parenthesis, Exponents, Multiply, Divide, Add, and Subtract) left to right. Please Excuse My Dear Aunt Sally!

4⁻⁵

4⁻⁵ (First, do exponent.)

4⁻⁵= 4⁵

1/4⁵

4⁵ (Solve.)

4⁵=4*4*4*4*4=1024

1/1024=0.0009765625

1/1024=0.0009765625

As a result, the correct answer is 1/1024=0.0009765625.

zhannawk [14.2K]3 years ago

5 0

Answer:

1/1024

Step-by-step explanation:

The powers are fractions of each other.

Keep multiplying by 1/4 until you did that 5 times.

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Please solve the table and show your work

Elanso [62]

Answer:

Step-by-step explanation:

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3 years ago

Tristan is working on dilating rectangles. Rectangle ABCD is dilated by a factor of 3. The resulting rectangle WXYZ has an area

zloy xaker [14]

Answer:

Tristan is correct, because he needs to find the possible dimensions for rectangle WXYZ and then divide each dimension by 3.

Step-by-step explanation:

The rectangle ABCD is dilated by a factor of 3 to get the rectangle WXYZ whose area is found to be 72 cm².

Let the dimensions of the dilated rectangle WXYZ are a cm by b cm.

So, ab = 72 ........... (1)

Now, the dimensions of the original rectangle are 3 times lesser than the dimensions of rectangle WXYZ.

So, the area of rectangle ABCD will be $(\frac{a}{3} \times \frac{b}{3}) = \frac{ab}{9} = \frac{72}{9} = 8$ cm² {from equation (1)}

Therefore, Tristan is correct, because he needs to find the possible dimensions for rectangle WXYZ and then divide each dimension by 3. (Answer)

8 0

3 years ago

A store is having a sale on DVDs and CDs. DVDs cost $4 and CDs cost $7. On one day, the store made $204 from DVD and CD sales, a

Gre4nikov [31]

We are given here the individual costs of DVD and CD as well as the total sales and the number of items sold on one day. To solve the number of DVDs and CDs sold each, we devise two independent linear equations:

(1) x + y = 39
(2) 4x + 7y = 204

x- number of DVDs; y - number of CDs

solving, x= 23 DVDs
y = 16 CDs

4 0

3 years ago

Solve 4(2a-1) = -10(a-5)

densk [106]

Firstly, you've got to expand the brackets, this becomes;
8a-4= -10a+ 50
You've then got to eliminate the -10a and you do this by adding 10a to both sides,
This then becomes 18a-4=50
You've then got to add 4, to eliminate this, which then becomes 18a=54
You've then got to divide both sides by 18, and this becomes 3.
Therefor, a=3
Hope this helps :)

4 0

3 years ago

Read 2 more answers

Solve 6/×-3 =x/3

Eduardwww [97]

Answer:

X = -3. non-extraneous

Step-by-step explanation:

The given equation is $\frac{6}{x-3} =\frac{x}{3}$