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katrin2010 [14]
2 years ago
14

Create an equivalent expression for 13 ^−7 x 13 ^5.

Mathematics
2 answers:
Sveta_85 [38]2 years ago
8 0

13^{-7} \times 13^5=13^{-2}=\boxed{\frac{1}{13^2}}

Zina [86]2 years ago
3 0
13-7 x 135
= 13-2
1
132
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Please help me with this
Marat540 [252]

I'll just do red for now, but if you're very desperate I guess I'll help with a few more lol. It's just a lot of typing and my computer is at 6% :)

RATIO:

Ratios are another way of comparing things. It's almost like a fraction, except that it can look like x:y.

I'm guessing you're comparing all of the reds to the total amount, which should be 39. Put 5 in for x and 39 for y to make it look like 5:39.

DECIMAL:

Oh decimals are so fun...

Just divide 39 by 5. The answer to red's decimal is 7.8.

PERCENTAGE:

Percentage can come a little bit confusing to some people, so I'll explain this the best I can.

Basically, all you have to do to find it is divide the number you're making into a percentage by the total amount, then multiply it.

5/39 x 100

0.1282051282 x 100

12.8205128205

I'm going to the nearest hundredth which is 12.82.

Your percentage is %12.82

(If you're rounding to the nearest whole number, it'll be %13)

THEORETICAL:

For this simplify your ratio. 5/39 cannot simplify, so just leave it as 3/39.

Sorry, sometimes I come out a little confusing, so just try not to think too hard about what I'm trying to say if you're confused more lol. Anyway my computer is going to die so I'll go now :)

6 0
3 years ago
Can someone help me find the answer and explain please??
MA_775_DIABLO [31]

Answer:

75

Step-by-step explanation:

x = 5

Input 5 into the f(x) equation.

f(5) = 3(5)²

f(5) = 3 × 25

f(5) = 75

Hope that helps.

3 0
3 years ago
Read 2 more answers
The coordinates of the top of a tree are (-3,8), and an acorn is attached to the tree at (-1,5). If we know that the acorn lies
Charra [1.4K]

Let's say that the coordinates of the squirrel are: (x, y)

Since the coordinates of the acorn is halfway, between the tree and the squirrel, that means the acorn is the midpoint.

To work out the midpoint you do:

(sum of x-coordinates) divided by 2,  (sum of y coordinates) divided by 2.

We can use this to form an equation .

So the sum of the x coordinates of the tree and the squirrel = -1   :

x-coordinates of the squirrel:

\frac{-3+x}{2}=-1                   <em>(now solve for x)</em>

-3+x = -2

x=1

y-coordinates:

\frac{8+y}{2}=5                   <em>(now solve for y)</em>

8+y=10

y = 2

So the coordinates of the squirrel are: (1, 2)

____________________

Answer:

(1, 2)

8 0
3 years ago
Read 2 more answers
Can I guess help on this please I only got half hour to do this
AleksandrR [38]
90÷17= 5.29 i think but not sure
7 0
4 years ago
How can you prove two circles are similar?
r-ruslan [8.4K]
Their radii, their diameters, their circumference, and their area will all be proportionate.  But I think that all circles are proportionate.
7 0
3 years ago
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