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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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4(2x-3)=0.2(x+5)÷5.72
rusak2 [61]

Answer:

x=1.528534

Explanation:

Simplify both sides of equation

4(2x-3)=0.2(x+5)/5.72

(4)(2x)+(4)(−3)=0.034965x+0.174825(Distribute)

8x+−12=0.034965x+0.174825

8x−12=0.034965x+0.174825

Step 2: Subtract 0.034965x from both sides.

8x−12−0.034965x=0.034965x+0.174825−0.034965x

7.965035x−12=0.174825

Step 3: Add 12 to both sides.

7.965035x−12+12=0.174825+12

7.965035x=12.174825

Step 4: Divide both sides by 7.965035.

7.965035x/7.965035=12.174825/7.965035

x=1.528534

4 0
3 years ago
Can you answer questions 71, and 72?
antiseptic1488 [7]
I think 71 is B
and 72 is D.

6 0
3 years ago
Good morning how's everybody's Monday going so far
spin [16.1K]

Answer:

its going well, wbu

Step-by-step explanation:

4 0
2 years ago
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Ayo helppp ill give u anthing
kicyunya [14]

Answer:

16.9 m

Step-by-step explanation:

Start with a half a circle. The central angle of a semicircle is 180 deg.

Now subtract 21 deg on each side.

180 - 21 - 21 = 138

The central angle is 138 deg.

The radius is 7 m.

Now we use the formula for the length of an arc of a circle given the radius of the circle and the central angle of the arc.

s = \dfrac{n}{360^\circ}2 \pi r

s = \dfrac{138^\circ}{360^\circ}2(3.14159)(7~m)

s = 16.9~m

4 0
3 years ago
PLEASE HURRY<br> How do i solve these problems
Tatiana [17]

Answer:

X = 13

X = 70

Step-by-step explanation:

1. Since it is a right angle set the equation up as X +2 + 75 = 90.

X =13

2. Set up x - 20 + 40 = 90 since right triangles are 90 degrees

x = 70

5 0
3 years ago
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