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3 years ago

F(n) = 2n− 5; Find f(−8)

Mathematics

1 answer:

scoundrel [369]3 years ago

5 0

Answer:

Step-by-step explanation:

Putting value of n = - 8 in the equation

F(n) = 2n− 5

F(-8) = 2(-8) - 5

= - 16 - 5 = - 21

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The cost in dollars y of producing x computer desks is given by y=80x+6000

Gnoma [55]

Answer:

(100,14000), (200, 22000), (300, 30000)

Step-by-step explanation:

y = 80x + 6000 ........ (1) is the equation which gives the cost (y) in dollars for making x number of computer desks.

Let, f(x) = 80x + 6000

So, f(100) = 80 × 100 + 6000 = 14000 {From equation (1)}

So, to produce 100 desks it costs $14000.

Again, f(200) = 80 × 200 + 6000 = 22000 {From equation (1)}

So, to produce 200 desks it costs $22000.

Again, f(300) = 80 × 300 + 6000 = 30000 {From equation (1)}

So, to produce 300 desks it costs $30000.

Then table will be (100,14000), (200, 22000), (300, 30000) (Answer)

5 0

3 years ago

40 points Please help, answer and explain, please. Thank you!

zaharov [31]

Answer:

Step-by-step explanation:

$6x^2-2x^4+4+3x\\\\\text{Look at the power of variables.}\\\text{Arrange the terms in order from the largest exponent to the smallest.}\\\\-2x^4+6x^2+3x+4$

6 0

3 years ago

What is the square root of -1?

lys-0071 [83]

Answer:

$i$

Step-by-step explanation:

<u>Step 1: Find the square root of -1</u>

<u /> $\sqrt{-1}$

$\sqrt{i^2}$

$i$

Answer: $i$

7 0

3 years ago

Read 2 more answers

Slove the inequality 5(x + 1) <25<br> x < 4<br> x > -4<br> x > 4<br> Pls help meee

viktelen [127]

Algebra

Use the distributive property to make 5x+5.

5x+5<25

Subtract 5 from both sides.

5x<20

Divide both sides by five.

x<4

7 0

2 years ago

Find the missing measure

SCORPION-xisa [38]

Answer:

93 degrees

Step-by-step explanation:

first, lets add 38+49 to see the sum

38+49=87

since the sum of all three angles in every triangle equals 180, we can subtract this sum from 180 to get the answer

180-87=93

so the missing angle would be 93

6 0

2 years ago

Read 2 more answers