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nikdorinn [45]
4 years ago
11

What is the value for f(x) = 42x - 100 when x= 2 ?

Mathematics
1 answer:
Elenna [48]4 years ago
6 0

When replace x with 2 in the equation, you get -16

First thing you would do is rewrite the equation substituting x for 2. After that, you would multiply 42 by 2, which would give you 84. From then on, you would subtract 100 from 84, which means the answer would equal -16, therefore f(2) = 42(2)-100= -16

f(2)=42(2)-100

f(2)=84-100

f(2)=-16

Hope this helps! Have a great day! :)

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Find the zero of the function /(x) = 5x-3.
Bad White [126]

Answer:

3/5

Step-by-step explanation:

Set it equal to 0

5x-3=0

Then solve for x

5x=3

x=3/5

Check

5(3/5) - 3

3-3

0

4 0
3 years ago
What is the solution to the equation 1/3(x-2) = 1/5(x+4) + 2?
Hoochie [10]

Answer:

x=26

Step-by-step explanation:

1/3(x-2)=1/5(x+4)+2

x-2=3/5x+42/5

5x-10=3x+42

5x-3x-10=42

5x-3=42+10

2x=42+10

2x=52

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5 0
3 years ago
Solve for x. 3x - 1 = 27 x = 10 x = 28/3 x = 26/3
frutty [35]

Answer:

x = 28/3

Step-by-step explanation:

3x - 1 = 27

Add 1 to each side

3x - 1+1 = 27+1

3x = 28

Divide by 3

3x/3 = 28/3

x = 28/3

6 0
3 years ago
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3 years ago
A new shopping mall records 120 total shoppers on their first day of business. Each day after that, the number of shoppers is 10
Iteru [2.4K]

Answer:

1,139\ shoppers

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

y=a(b)^{x}

where

a is the initial value or y-intercept

b is the base of the exponential function

r is the rate in decimal form

b=(1+r)

In this problem we have

x ----> the number of days

y ----> the number of shoppers

a=120

r=10%=10/100=0.10

b=1+0.10=1.10

substitute the values

y=120(1.10)^{x}

First day

y=120

Second day

For x=1 day

substitute the value of x in the equation and solve for y

y=120(1.10)^{1}=132

Third day

For x=2 days

y=120(1.10)^{2}=145

Fourth day

For x=3 days

y=120(1.10)^{3}=160

Fifth day

For x=4 days

y=120(1.10)^{4}=176

Sixth day

For x=5 days

y=120(1.10)^{5}=193

Seventh day

For x=6 days

y=120(1.10)^{6}=213

Adds the numbers

120+132+145+160+176+193+213=1,139

3 0
3 years ago
Read 2 more answers
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