3 years ago

Which of the following are solutions to the equation below?

Mathematics

1 answer:

anastassius [24]3 years ago

4 0

Answer:

C and F

Step-by-step explanation:

Given

(3x - 5)² = 19 ( take the square root of both sides )

3x - 5 = ± $\sqrt{19}$ ← note plus or minus

Add 5 to both sides

3x = ± $\sqrt{19}$ + 5 ( divide both sides by 3 )

x = ± $\frac{\sqrt{\sqrt{19}+5 } }{3}$

Separating the solutions

x = $\frac{\sqrt{19}+5 }{3}$ → C

x = $\frac{-\sqrt{19}+5 }{3}$ → F

You might be interested in

More than $70 billion is spent each year in the drive-thru lanes of America’s fast-food restaurants. Having quick, accurate, and

artcher [175]

Answer:

a) There is no significant difference between restaurants with and without order-confirmation boards

b) -12.5 ± 3.604 or C.1.E (-16.10, -8.90)

Step-by-step explanation:

answers are in the attachment below

8 0

3 years ago

rding to linear pattern. If the initial value of the vehicle is $26,000, and the value ten years later is $0, what will the depr

Verdich [7]

The answer will be 5,200

3 0

3 years ago

Which of the following equations uses the commutative property of addition to rewrite 1/3 + 2/5?

luda_lava [24]

The commutative property states that you can invert the order of the terms of a sum:

$a+b=b+a$

So, if you start with

$\dfrac{1}{3}+\dfrac{2}{5}$

Applying the commutative property you'll get

$\dfrac{2}{5}+\dfrac{1}{3}$

3 0

2 years ago

What would be 82% of 50

MrRissso [65]

10% = 5
80% = 40
2% = 1
82% = 41

41

5 0

2 years ago

Read 2 more answers

3 ft Find the outer perimeter of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate it. 4 ft 5 ft

Sedbober [7]

Answer:

perimeter = 19.42 ft

Step-by-step explanation:

perimeter of semi circle = 6π/2 = 9.42

perimeter of cone = 5 + 5 = 10

10 + 9.42 = 19.42 ft

7 0

2 years ago

Read 2 more answers