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coldgirl [10]
3 years ago
5

BRAINLIEST PLEASE HELP ASAP!!!!

Mathematics
1 answer:
Mashcka [7]3 years ago
5 0

For this case we have that by definition of power properties it is fulfilled that:

(a ^ n) ^ m = a ^ {n * m}

We must rewrite the following function:

f (x) = 7 (\frac {1} {2})^{3x}}

Using the mentioned property we have:

f (x) = 7 ((\frac {1} {2}) ^ 3) ^ x

Solving the operation within the parenthesis we have:

f (x) = 7 (\frac {1 ^ 3} {2 ^ 3}) ^{ x}\\f (x) = 7 (\frac {1} {8})^{x}

Thus, the correct option is option B

ANswer:

Option B

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Use the model to solve for x. <br> A) no solution <br> B) x = 1 <br> C) x = -1 <br> D) x = 10/4
andreev551 [17]

Answer:

x = -1

Step-by-step explanation:

The equation is -2x + 3 = 2x +7

Group the terms together. Don't forget to change the sign

-2x -2x = 7-3

-4x = 4

Divide both sides by 4

-x = 1

Flip it over

x = -1

7 0
3 years ago
Plssssssss I really need your help​
Naddika [18.5K]
A: 100m^2

10 x 10 = 100

B: 28.274m^2

You have to do pi x r squared
So,,,

Pi x 3^2

9pi = 28.274....

C: just subtract the grass bed from the land...

100 - 28.274 = 71.72566612...

So C is 71.726m^2

Hope this helped! Have a nice day :)
8 0
3 years ago
From his home, Dan would have to walk due north to get to his friend Samuel's house and due east to get to his friend Cindy's ho
maksim [4K]

The distance from Dan's house to Samuel's house is 4 km

The distance from Dan to Samuel house, Dan to Cindy house and Samuel to Cindy house forms a right angled triangle.

Distance from Dan to Samuel house = x, Distance from Dan to Cindy house = 3 km and Distance from Cindy to Samuel house = 5 km

Pythagoras theorem shows the relationship between the lengths of a right angled triangle.

Using Pythagoras theorem:

5² = x² + 3²

25 = x² + 9

x² = 16

x = 4 km

Hence the distance from Dans house to Samuel's house is 4 km

Find out more at: brainly.com/question/21846482

4 0
3 years ago
What is 2x 69? i don’t know what it is
Naddik [55]
I think you meant to write 2* 69
X is confusing
But I think you meant multiplication problem so the answer is

2 times 69 = 138
8 0
3 years ago
Write an equation which represents c, the total cost of n pizzas purchased.
bezimeni [28]
C= total $ cost
n= number of pizzas purchased
x= $ cost per pizza

C= x * n
C= xn

If you know the cost per pizza and the number of pizzas purchased, plug those numbers in the equation above to find the total cost.

EXAMPLE: If each pizza cost $10 and 5 were purchased, the equation would be: C= ($10)(5)= $50 total

ANSWER: C= xn

Hope this helps! :)
4 0
4 years ago
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