3 years ago

Y= 3/4x + 7; domain = {-8, -4, 12} whats the range?

Mathematics

1 answer:

stiv31 [10]3 years ago

5 0

Range is all real
(-inf, inf )

You might be interested in

Please help me with this problem..

charle [14.2K]

Answer:

y = 6

Step-by-step explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 3 when x = 9, then

k = $\frac{y}{x}$ = $\frac{3}{9}$ = $\frac{1}{3}$ , thus

y = $\frac{1}{3}$ x ← equation of variation

When x = 18, then

y = $\frac{1}{3}$ × 18 = $\frac{18}{3}$ = 6

5 0

3 years ago

(x-1)^2+(2-x)^2-3(x-5)*(x-5)

Natali5045456 [20]

Answer:

$-x^2+24x-70$

Step-by-step explanation:

$(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5 - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70$

Formula used =

$(a-b)^2 = a^2+ 2ab + b^2$

8 0

3 years ago

Use the figure below to find the lateral surface area. Help needed ASAP. (WILL MARK BRAINLIEST)

o-na [289]

Answer:

60 is your answer

Step-by-step explanation:

Good Luck!!! :D

Can i have brainliest?

4 0

3 years ago

Trini rode her bike 12 miles on Friday. She rode 14 miles on Saturday and 15 miles on Sunday. How many miles did she ride in all

loris [4]

Answer: 41

Step-by-step explanation:

12+14+15= 41

4 0

2 years ago

An explanation would be appreciated!!

sweet-ann [11.9K]

Answer:

Answer: l = 82.5

Step-by-step explanation:

11/2 x 15 = 82.5.

4 0

2 years ago