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ankoles [38]
3 years ago
12

The function is given by the formula f(x)=3x+2.

Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

(a) f(7) = 23

(b) x = 13/3

Step-by-step explanation:

Step 1: Define

f(x) = 3x + 2

(a) f(7) is x = 7

(b) f(x) = 15

Step 2: Substitute and Evaluate

(a) f(7) = 3(7) + 2

f(7) = 21 + 2

f(7) = 23

(b) 15 = 3x + 2

13 = 3x

x = 13/3

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Please answer this question
makvit [3.9K]

Step-by-step explanation:

Using the properties of logarithms, the left side of the equation becomes

\log{3x^3} - \log{x^2} = \log{3x}

while the right hand side becomes

\log{27} - \log{x} = \log{\frac{27}{x}}

so we end up with

3x^2 =27 \Rightarrow  x = 3

4 0
3 years ago
Adam has saved 35% of the $400 he needs to save to buy a bike. How much money does Adam saved so far
Savatey [412]

Answer:

He has saved $140.

Step-by-step explanation:

Since 35% translates to 0.35, 35% of 400 is (0.35)(400) = 140

8 0
3 years ago
Read 2 more answers
1. Solve the inequality.
Sauron [17]

Answer:

Your final answer is either

x≥-2   if your initial inequality was

6x+2≤2(5-x)

OR

x≤-2

if your initial inequality was

6x+2≥2(x-2)

Step-by-step explanation:

As shown you have an equality, not an inequality.

-6x+2=2(5-x)          distribute through parenthesis

-6x+2=2(5)+2(-x)

-6x+2=10-2x           add 2x to both sides

2x-6x+2=10-2x+2x

-4x+2=10                subtract 2 from both sides

-4x+2-2=10-2

-4x=8                      divide both sides by -4

-4x/(-4) = 8/(-4)

x = -2

With the ≥ or ≤ sign you would solve the exact same way

except for the point where when dividing both sides by

-4 requires you to reverse the inequality.

Your final answer is either

x≥-2   if your initial inequality was

6x+2≤2(5-x)

OR

x≤-2

if your initial inequality was

6x+2≥2(x-2)

7 0
3 years ago
What is the multiplicative inverse of -3/11 and -3?<br> Please help and it's level is 7 th grade
Margaret [11]

Answer:

-11/3

-1/3

The multiplicative inverse of a fraction a/b is b/a. For the multiplicative inverse of a real number, divide 1 by the number. For example, the reciprocal of 5 is one fifth (1/5 or 0.2), and the reciprocal of 0.25 is 1 divided by 0.25, or 4.

Step-by-step explanation:

Hope it is helpful......

5 0
3 years ago
I need help u don’t know the answer please don’t make me get it wrong
Paul [167]

Answer:

16cm

Step-by-step explanation:

7 0
3 years ago
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