Ask question

Ask question

All categories

3 years ago

6

Find x if (117 + x)(V17 – x) = 12.

1 answer:

liraira [26]3 years ago

8 0

Answer: x = ±√145

Step-by-step explanation:

√(17 + x) × √(17 - x) = 12

√(17 + x) (17 - x) = 12

Squaring both sides,

(√(17 + x) (17 - x))^2 = 12^2

(17 + x) (17 - x) = 144

17(17 - x) + x(17 - x) = 144

289 - 17x + 17x - x^2 = 144

x^2 = 289 - 144

x^2 = 145

x = ±√145

You might be interested in

What is the base of a triangle that has a height of 6 centimeters and an area of 18 centimeters? Use the formula h = StartFracti

azamat

Answer:

h = 6 cm

Step-by-step explanation:

Atriangle = b×h/2

18cm² = 6cm×h/2

36cm² = 6cm×h

h = 36cm²/6cm

h = 6 cm

3 0

3 years ago

Read 2 more answers

Helena wants to find the perimeter of the graphed quadrilateral ABCD.

gizmo_the_mogwai [7]

Side cd will do the trick

5 0

4 years ago

Read 2 more answers

Which graph represents the function f(x)=1/3|x|

hram777 [196]

Answer:

D.

Step-by-step explanation:

if plug in 3 for x and you can see the line crosses at 1 on the y axis.

8 0

3 years ago

-17x-7 = 25x-7(6x-7)

Marysya12 [62]

Answer: 0x = 56 - no solution -

Step-by-step explanation:

-17x-7 = 25x-7(6x-7)

-17x -7 = 25x - 42x + 49

-17x -7 = -17x + 49

-17x + 17x =49 + 7

0x = 56

7 0

3 years ago

A 25.8 gallon fish tank is 5/6 full. How many gallons will it take to fill the tank?

svlad2 [7]

The answer to fill the tank is 5.16

6 0

4 years ago