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Verdich [7]
3 years ago
13

Use the function below to find F(-4). F(x) = 2^x

Mathematics
2 answers:
icang [17]3 years ago
8 0

Answer:

The value of F(-4) in the expression F(x) = 2^x is

= 16

Step-by-step explanation:

Step one :

To solve the problem we we need to impute the given value for x into the expression F(x) = 2^x

Step two

The given value F(-4), says that x=-4

If we properly and correctly substitute this value into the expression we have

Step three

F(-4) = 2^4=2*2*2*2

F(-4)=4*4

F(-4)=16

Hence the value of F(-4) in the expression F(x) = 2^x is

16

Amiraneli [1.4K]3 years ago
4 0
To answer this item, note that what needs to be done is to substitute -4 to all x's in the equation. That is,
                     F(x) = 2^x
will become,
                     F(-4) = 2^(-4) = 1/16 or 0.0625
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Need help please, thanks!
MakcuM [25]
Given:
1 inch : 18 kilometers

Let us use the ratio and proportion method:

a:b = c:d where ad = bc

0.8 inches is <u>14.4 kilometers</u>

1 : 18 = 0.8 : x
x = 0.8 * 18
x = 14.4 km

1.4 inches is <u>25.2 kilometers</u>

1: 18 = 1.4 : x
x = 18 * 1.4
x = 25.2 km

2.1 inches is <u>37.8 kilometers</u>

1 : 18 = 2.1 : x
x = 18 * 2.1
x = 37.8 km

4 0
2 years ago
② The complement of an<br> angle. is 10 more<br> than 3 times the<br> angle. Find both
Mrac [35]
Let x be the angle. The complement is 3x + 10. The sum of two complementary angles is 90. So,
x + 3x + 10 = 90
4x + 10 = 90
4x = 80
x = 20
Plug x into the complement
3(20) + 10 = 70

The angle is 20 degrees and the complement is 70 degrees

4 0
2 years ago
Find the original price of a pair of shoes if the sale price is $40 after a 60% discount
Arturiano [62]

Answer:

<em>Thus, the original price of the pair of shoes was $100.</em>

Step-by-step explanation:

<u>Percentages</u>

After a 60% discount, the sale price is now valued at 100-60=40% of its original price.

If the sale price is $40, then the original price is calculated as

$40 / 40 * 100 = $100

Thus, the original price of the pair of shoes was $100.

Verify applying 60% discount:

$100 - 60*$100/100 =  $40

3 0
3 years ago
2/3(x-7)= -2 solve for y
Ksju [112]
Maybe you meant solve for x?
If so, the answer is 4
5 0
3 years ago
Someone help please
Pachacha [2.7K]

Answer:

Step-by-step explanation:

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Bases=1

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5 0
2 years ago
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