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VashaNatasha [74]
2 years ago
13

PLS HELP ME I'M SO CONFUSED!!!!!!

Mathematics
2 answers:
LenKa [72]2 years ago
5 0

Answer:

  • a = -3, b = 2.5, c = - 1/2

Step-by-step explanation:

1)

  • 3^a=1/27
  • 3^a=1/3^3
  • 3^a=3^{-3}
  • a=-3

2)

  • 3^b=9\sqrt{3}
  • 3^b=3^2*3^{1/2}
  • 3^b=3^{2+1/2}
  • 3^b=3^{2.5}
  • b=2.5

3)

  • 3^c=1/\sqrt{3}
  • 3^c=1/3^{1/2}
  • 3^c=3^{-1/2}
  • c = - 1/2

WARRIOR [948]2 years ago
3 0

Step-by-step explanation:

You have to use logarithms.

1) a = log_3 (1/27) = -log_3 (27) = -3

2) b = log_3 (9 * 3^(1/2)) = log_3 (3 ^ {5/2}) = 5/2

3) c = -log_3 (sqrt3) = -1/2

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Carlotta has 12 2/3 yd of ribbon to be divided among 19 girls in the cheerleading squad.how much ribbon will each girl get if it
trasher [3.6K]

Answer:

Each girl gets 2/3 yd of ribbon.

Step-by-step explanation:

12 2/3=38/3

(38/3)/19

(38/3)(1/19)

(2/3)(1/1)=2/3

4 0
3 years ago
Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}
sashaice [31]

Hey there!

Assuming you meant

5r^2 - 12 = 68

If so, follow these steps so it can be a little bit easier to solve

Firstly, we have to add by 12 on each of your sides

5r^2 -12 +12 \\ \\ 68 + 12

5r^2 = 5r^2 \\ \\ 68 + 12 = 80

We get: 5r^2 =80

Now, we have divide by 5 on each of your sides

\frac{5r^2}{5} = \frac{80}{5}

\frac{80}{5}  = 16

We get: r^2 = 16

r = ± \sqrt{16}

Therefore , your answer is:r = ±4

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

3 0
3 years ago
I have 1 apple I need 6 more to get to 7 so I pick 3 up eat 2 which picking up 4 more , how many apples do I have?
natita [175]

Answer:

6

Step-by-step explanation:

1+3=4  4-2=2  2+4=6

7 0
3 years ago
Read 2 more answers
150=3/5x what does x equal?
svetlana [45]

Answer:

250

Step-by-step explanation:

150/3=50

50*2=100

150+100=250

7 0
3 years ago
Read 2 more answers
Pls help with this problem
madam [21]

Step-by-step explanation:

every triangle inscribed into a circle with the baseline being a diameter of the circle must be a right-angled triangle.

therefore,

angle XVY = 90°.

for VY we can use Pythagoras

c² = a² + b²

with c being the Hypotenuse (the line opposite of the 90° angle, in our case XY).

XY = 2×ZY = 2×17 = 34.

so,

34² = 30² + VY²

VY² = 34² - 30² = 1156 - 900 = 256

VY = 16

6 0
2 years ago
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