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lys-0071 [83]
3 years ago
9

Follow the steps to solve the equation square root 2x-7 - square root 3x - 12 = 0.

Mathematics
1 answer:
Orlov [11]3 years ago
7 0

Answer:the correct answer is c

Step-by-step explanation: I hope you have a great day

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A new car sells for $27,500. The value of the car decreases by 14% annually. You want to sell the car when it's worth about $400
NemiM [27]

Answer: 13 years.

Step-by-step explanation:

The price decreases by 14% anually

To find the decimal form, you have 14%/100% = 0.14

So, the year zero, the price is $27,500

After one year, the price is:

P = $27,500 - 0.14*$27500 = $27,500*(0.86)

After the second year, the price is:

P = $27,500*(0.86)^2

and so on, so we want to find x such that:

P = $27,500*(0.86)^x = $4000

0.86^x = $4000/$27,500

Now, using the natural logaritm rule:

a^x = b

x = ln(a)/ln(b)

x = ln($4000/$27,500)/ln(0.86) = 12.8

We can round it up to 13, so after 13 years the price of the car is about $4000

7 0
3 years ago
When Marla rounded 19.95 to the nearest tenth, she found the number changed to 20.is this correct
dexar [7]
Yes, Marla is correct.
4 0
3 years ago
Elena wants to make a scale drawing of her bedroom. Her bedroom is a rectangle with length 500 cm and width 300 cm. She decides
nikdorinn [45]

Answer:

Length~ 25,000 cm Width~ 15,000

3 0
3 years ago
Y = 4x - 5 + 3 The domain of this function is . The range of this function is .
Katen [24]

Answer:

Negative infinity to infinity, 3 to infinity.

5 0
3 years ago
Read 2 more answers
Find the percent of decrease if 110 is decreased to 88 A) 125% B)80% C)20%
stich3 [128]

Hey there! I'm happy to help!

We have 110 minus a certain percent of 110 equals 88. Let's call this percent p and solve.

110-110p=88

We subtract 110 from both sides.

-110p=-22

We divide both sides by 110.

p=0.2

Therefore, the percent decrease is C) 20%.

Have a wonderful day! :D

4 0
3 years ago
Read 2 more answers
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