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Karo-lina-s [1.5K]
3 years ago
14

Help with f(x) = 2.2^x for f (-2)

Mathematics
2 answers:
Zanzabum3 years ago
6 0

Answer:

.20661157

Step-by-step explanation:

f(x) = 2.2^x

Let x=-2

f(-2) = 2.2^-2

The negative exponent put it in the denominator

f(-2) = 1 / 2.2^2

        =.20661157

Fudgin [204]3 years ago
3 0

Answer:

0.2

Step-by-step explanation:

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Casey wants to buy a gym membership. Gym A has a $150 joining fee and costs $35 per month. Gym B has no joining fee and costs $6
MariettaO [177]

Answer:

Step-by-step explanation:

Gym A has a $150 joining fee and costs $35 per month.

Assuming that Casey wants to attend for x months, the cost of using gym A will be

150 + 35 times x months. It becomes

150 + 35x

Gym B has no joining fee and costs $60 per month.

Again, assuming that Casey wants to attend for x months, the cost of using gym B will be

60 × x months = 60x

A) To determine the number of months that it will both gym memberships to be the same, we will equate them.

150 + 35x = 60x

60x - 35x = 150

25x = 150

x = 150/25 = 6

It will take 6 months for both gym memberships to be the same.

B) If Casey plans to only go to the gym for 5 months,

Plan A will cost 150 + 35×5 = $325

Plan B will cost 60 × 5 = $300

Plan B will be cheaper

6 0
3 years ago
I’m not really good at answering these with letters in it so would the answer be H to the power of six
r-ruslan [8.4K]
The answer is h to the power of 7 because you add the exponents
5 0
3 years ago
How do you write 4540 million in standard form?
vovangra [49]
For this case what we should do is take into account the following conversion:
 million = 10 ^ 6

 We then have the following number:
 4540 million

 Applying the given conversion we have:
 4540 * 10 ^ 6

 By doing the corresponding calculation we have that the standard form is given by:
 4540 * 10 ^ 6 = 4,540,000,000

 Answer:
 
4540 million in standard form is:
 
4,540,000,000
8 0
3 years ago
Read 2 more answers
Please explain i really don’t understand
Lemur [1.5K]

Answer:

22.5°

Step-by-step explanation:

First we need to figure out the size of the interior angles on the inside.

The formula of figuring out the total degrees of all the interior angles of any shape is (n-2)×180°.

N is the number of sides.

If we substitute our number of sides (8) we get this:

(8-2)×180°

6×180° = 1080°

Then we divide 1080 by 8 since this is a regular octagon (all angles are equal in a regular shape).

1080° ÷ 8 = 135°

Focusing on the triangle now, we now know that the angle on the tip of the triangle is 135° as it has not been split by the line.

Using the rule of angles in a triangle add up to 180°. We do this sum:

180° - 135° = 45°

There are 2 angles left in the triangle so we do:

45° ÷ 2 = 22.5°

Therefore the angle of x is 22.5°.

8 0
3 years ago
What is the sum of 1/2 +1/4? Use the fraction strip to help
nalin [4]

Answer:

3/4 or 0.75

Step-by-step explanation:

\frac{1}{4} +\frac{1}{2}= \frac{1}{4}+\frac{2}{4} = \frac{3}{4}

5 0
3 years ago
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