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Sauron [17]
2 years ago
14

Find the value of x in the equation √ x + 5 = √ x + 45.

Mathematics
1 answer:
Ivanshal [37]2 years ago
8 0
There is no solution since 5 doesn't equal 45
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Use the number line to show and explain why 4/10 ÷ 2 and 4/10 × 1/2 both equal 2/10
Vesna [10]

Step-by-step explanation:

When you divide by a number, you basically are multiplying by the reciprocal

The reciprocal of 2 is 1/2

4/10 ÷ 2 = 4/10 × 1/2 = 2/10

4/10 × 1/2 = 2/10

Using a number line,

Start at 4/10 and move down by 2 until you reach 0

Start at 4/10 and move up by 1/2 from 0 until you reach 4/10

(Count the number of humps)

Both will be the same

4 0
2 years ago
Frankie descends 56 ft in 4 minutes. what is frankies average change in position per minute from which he started.
ArbitrLikvidat [17]

Answer:

14?

Step-by-step explanation:

6 0
3 years ago
Please help!! Question is down below and I’m kinda confused
Arada [10]
It would be the last one
4 0
2 years ago
An online shopping club has 10,000 members when it charges $7 per month for membership. For each $1 monthly
Sonja [21]

Answer:

The function that can be used in the online shopping club about its monthly revenue is:

R = -400x^{2} +7200x+70000

Step-by-step explanation:

First, we're gonna take into account the different values we have in the exercise:

  1. 10,000 members
  2. $7 per month for membership
  3. Loses of 400 members by each $1 monthly increase

How the variable x represents the price increase, we can do the formula below:

  • (10000 - 400x) * (7+x)

In this formula, we represent in the first part that by each 1 in the variable x, the total of members will be reduced in 400, in the second part, we mention that at the same time, the membership fee will be increased in the same value of x. Now we must simplify this function:

  • (10000 - 400x) * (7+x)

We operate the values:

  • 70000+10000x-2800x-400x^{2}

Solve we can:

  • 70000+7200x-400x^{2}

And organize:

  • -400x^{2} +7200x+70000

At the end, how R represents the monthly revenue received by the club, we use that variable for our formula:

  • R=-400x^{2} +7200x+70000

4 0
2 years ago
SOMEONE PLEASE HELP ME ASAP
Alenkinab [10]
The answer to this question is C I just worked it out on paper using a calculator

5 0
2 years ago
Read 2 more answers
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