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Effectus [21]
3 years ago
5

F(x) = 4^x-1; find f(3)​

Mathematics
2 answers:
charle [14.2K]3 years ago
6 0

Answer:

f(3) = 63

Step-by-step explanation:

f(x) = 4^x-1;

Let x =3

f(3) = 4^3 -1

     = 64-1

     =63

ElenaW [278]3 years ago
3 0

Answer:

f(3)=16

Step-by-step explanation:

This question asks us to find f(3). We have to find what f(x), or y is, when x is equal to 3.

f(x)=4^x-1

Substitute 3 in for x.

f(3)=4^3-1

First, subtract what is in the exponents.

f(3)=4^2

4^2 is the same as multiplying 4, 2 times.

4^2=4*4=16

f(3)=16

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Answer: -27.10

Step-by-step explanation:

$46.74+ $60.86= $107.6

$107.60 -$ 134.70 =-$27.10

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3 years ago
What is the sum of twice a number and 13 is 75
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Equation-   2n+13=75
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7 0
3 years ago
Some pls help me with number 6
Katyanochek1 [597]

Answer:

m∠CBD = m∠CDB ⇒ proved

Step-by-step explanation:

Let us solve the question

∵ AB ⊥ BD ⇒ given

→ That means m∠ABD = 90°

∴ m∠ABD = 90° ⇒ proved

∵ ED ⊥ BD ⇒ given

→ That means m∠EDB = 90°

∴ m∠EDB = 90° ⇒ proved

∵ ∠ABD and ∠EDB have the same measure 90°

∴ m∠ABD = m∠EDB ⇒ proved

∵ m∠ABD = m∠ABC + m∠CBD

∵ m∠EDB = m∠EDC + m∠CDB

→ Equate the two right sides

∴ m∠ABC + m∠CBD = m∠EDC + m∠CDB

∵ m∠ABC = m∠EDC ⇒ given

→ That means 1 angle on the left side = 1 angle on the right side, then

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5 0
3 years ago
50 POINTS! PLZ HELP NO ONE HELPED ME LAST TIME BUT I HOPE SOMEONE WILL THIS TIME! ALSO DON'T KNOW WHY I'M WRITING IN ALL CAPS
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Answer:

\frac{90}{3.5}

Step-by-step explanation:

Let x be the number of helium balloons they can buy

  1. Write it out: 35 + 3.50x = 125
  2. Subtract 35 from each side, so it now looks like this: 3.50x = 90
  3. Divide each side by 3.50 to cancel out the 3.50 next to x. It should now look like this: x = \frac{90}{3.5}  

I hope this helps!

5 0
2 years ago
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Which of the following numbers has the correct number of significant digits for the sum of 4.0125 and 5.72?
sladkih [1.3K]

Answer:

the answer to your question is 9.73

6 0
2 years ago
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