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Sati [7]
3 years ago
15

Let f(x) = 4x - 5 and g(x) = 3x + 7. Find f(x) + g(x) and state its domain.

Mathematics
1 answer:
dusya [7]3 years ago
4 0

Answer:

2nd option

Step-by-step explanation:

f(x) + g(x)

= 4x - 5 + 3x + 7 ← collect like terms

= 7x + 2

domain is all real numbers

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Katie earned $1890 in 7 years on an investment at a 6% annual simple interest rate.
n200080 [17]

Her investment was $4500. To get this, you take 1890 and divide it by 7, giving you 270. This is 6% of 4500. To prove this, you would multiply 4500 by .06, giving the answer of 270, which can then be multiplied by 7 (years) to equal $1890.

7 0
4 years ago
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Tori has already jarred 8.24 liters of jam and will jar an additional 7.36 liters of jam every day.How much jam did Tori jar if
gayaneshka [121]

Answer:

Step-by-step explanation:24 liters of jam after 4 days. How much jam did Alexa jar if she spent 8 days making jam? Assume the relationship is directly proportional.

3 0
4 years ago
A salesperson's weekly paycheck is 15% less than a second salesperson's paycheck. The two paychecks total $1425. Find the amount
Serga [27]
Set up a system of equations
Let x=first salesperson's paycheck
y=second salesperson's paycheck
x= y-.15y
x+y= 1425

Solve by substituting x
(y-.15y)+y= 1425
1.85y= 1425
y= 770.27

Substitute 770.27 for y in order to solve for x
x= (770.27)-.15(770.27)
x= 770.27-115.54
x=654.73

So the first salesperson(x) has a paycheck of $654.73 and the second salesperson(y) has a paycheck of $770.27.

Hope this helps!



3 0
4 years ago
Marking brainliest!!!!
Temka [501]

Answer:

D or J = 600

Step-by-step explanation:

It's hard to explain, but yeah.

Can I have brainliest?

6 0
3 years ago
Simplify completely 3x4+5x2+2x/x​
Andre45 [30]

Step-by-step explanation:

\dfrac{3x^4+5x^2+2x}{x}=\dfrac{x\!\!\!\!\!\diagup^1(3x^3+5x+2)}{x\!\!\!\!\!\diagup_1}=3x^3+5x+2

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3 years ago
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