1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Svetach [21]
3 years ago
7

Solve the following radical equations. 5√x−6=−20 Answer choices: x=−10 x=10 x=22 No solution

Mathematics
1 answer:
myrzilka [38]3 years ago
5 0

Answer:

Step-by-step explanation:

5 \sqrt{x} -6=-20

1. You divide 5 by both sides, which will give you \sqrt{x-6}=-4

2. You then square both sides of the equation, which will give you x-6=16

3. Since the equation is now one-step, you then do GEMDAS and you will get x=22

You might be interested in
AWARDED 40 POINTS Please help me
torisob [31]
(A) 2/3A= -24
A= -24 • 2/3
A= 48/3
A= 16

(B) 20= -B/0.2
20 • 0.2= -B
4= -B
-4= B

(C) Distance between Point A & Point B is 20
5 0
3 years ago
2. A chemist has a 25% and a 50% acid solution. How
AnnZ [28]

Answer:

x is mL of 25% acid and y is mL of 50% acid

We set up 2 equations:

A) x + y = 250

B) .25 x + .50y = .35 * 250 which equals

B) .25x + .50y = 87.50  Multiplying A) by -.5

A) -.5x -.5y = -125  adding the equations we get

-.25x = -37.50

x = 150 mL

y = 100 mL

Source:  http://www.1728.org/mixture.htm

Step-by-step explanation:

7 0
3 years ago
How many solutions does this equation have? How do you know?<br><br> 8x +14 - 4x = 9 + 4x - 5
MAVERICK [17]

Answer:

no solutions.

Step-by-step explanation:

8x + 14 -4x = 9+4x -5

8x-4x -4x = 9-5-14

0x = -10

anything multiplied by 0 is 0, so it's impossible to get -10 by multiplying by 0

5 0
3 years ago
John simplified 2 square root of 96 to get an answer of 4 square root 24
Oksanka [162]

Answer:

Step-by-step explanation:

2√96 = 2* √(4 * 24)

= 2*2√24

= 4√24

That is equal to 2√96 but a simpler result is:

4√24 = 4 * √4*√6

= 4 *2 √6

= 8√6

4 0
3 years ago
Which expression can be used to show a 40% discount on an item costing $74 plus 7% tax?
kakasveta [241]

The final price inculding tax after discount is $ 47 and expression used is:

Required expression = price of item - discount price + tax on item

<h3><u>Solution:</u></h3>

Given that 40% discount on an item costing $74 plus 7% tax

So cost of item = $ 74

Tax = 7 %

Discount = 40 %

The expression which can be used to find price after discount including tax is:

Required expression = price of item - discount price + tax on item

Let us first find the price after discount

Price after discount = cost of item - 40 % of cost of item

Price after discount = 74 - 40 % of 74

= 74 - \frac{40}{100} \times 74\\\\= 74 - 29.6 = 44.4

Thus the price after discount is approximately $ 44

<em><u>Now tax is 7 % which means 7 % of $ 44</u></em>

Price including tax = 44 + 7 % of 44

Price including tax  = 44 + \frac{7}{100} \times 44 = 44 + 3.08 = 47.08

Thus the final price inculding tax after discount is $ 47

3 0
4 years ago
Read 2 more answers
Other questions:
  • What is the solution to the following system of equations?
    15·2 answers
  • Mai and priya were on scooters. Mai travel 15 meters in 6 seconds. Priya travels 22 meters in 10 seconds. who was moving faster?
    14·2 answers
  • Help me please with tenmarks
    11·1 answer
  • Aisha owns an online video game store. She charges an initial fee of $40 for each new subscriber in addition to $5 per video gam
    13·1 answer
  • How do I simply -x=7
    9·2 answers
  • How can knowing about an interception in football help you remember the definition of y- intercept
    13·1 answer
  • XYZ Music Store sells new CDs,n, for $ 13.50, and used $6.50 .The store eamed $ 456 revenue last month. The store sold 14 more u
    13·1 answer
  • Clair studies 4/6 hours each day. How many hours does Claire study in 5 days?
    11·2 answers
  • Hello, can you please help me!!!!!!!!
    5·1 answer
  • In the attachment count the shaded, and the total amount make it to a fraction, and then simplify to make it to a percentage
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!