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Lunna [17]
3 years ago
11

WILL MAKE YOU BRAINLIEST

Mathematics
1 answer:
damaskus [11]3 years ago
4 0

Answer: B

negative power= reciprocal

3 goes in front of the square root sign because it is the denominator.

5 is the power of x.

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5.4x10^2/1.2x10^-1<br><br> Scientific Notation
Talja [164]

Answer:

5.4x10^2/1.2x10^-1 = 4.5 × 10^3

Step-by-step explanation:

To enter a number in scientific notation use a carat ^ to indicate the powers of 10. You can also enter numbers in e notation. Examples: 3.45 x 10^5 or 3.45e5.

7 0
3 years ago
Jan noticed at the store that a sweater costs $3.95 more than a shirt. she bought 3 shirts and 2  sweaters and the total costs (
grandymaker [24]
Lets say the price of a shirt is X, then the price of sweater is X + 3.95

Since a total cost is 71.65 for 3 shirts and 2 sweaters. 71.65 = (3*X) + 2*(X+3.95)

So, 71.65 = 3X + 2X + 7.9

71.65 - 7.9 = 5X

12.75 = X. Therefore, the price of a shirt is 12.75 dollars, and the price of a sweater is 16.7 dollars (12.75 + 3.95)

** 
5 0
3 years ago
Joe spends $8 on lunch and 6.50 on dry cleaning.He also buys 2 shirts that cost the same amount. Joe spends a total of $52.What
emmainna [20.7K]
52-8=44
44-6.50=37.50
37.50/2=18.75
18.75 per shirt
4 0
3 years ago
Read 2 more answers
Jill planted two flowers in her garden. The first flower is 2 inches tall, and it is growing 2.25 inches each week. The second p
Nadya [2.5K]

Answer:it will take the two plants 6 weeks before the heights are the same

Step-by-step explanation:

Jill planted two flowers in her garden.

The first flower is 2 inches tall, and it is growing 2.25 inches each week. Since the growth rate is in an arithmetic progression, we will apply the formula for finding the nth term of the series

Tn = a + (n - 1)d

Tn = the nth height of the first flower

a = the initial height of the first flower

d = the common difference in height of the first flower weekly

n = number of weeks

From the information given,

For the first flower,

a = 2

d = 2.25

Tn ?

n ?

Tn = 2 + (n - 1)2.25

For the second flower,

a = 5.75

d = 1.5

Tn ?

n ?

Tn = 5.75 + (n - 1)1.5

To determine the number of weeks that it will take until the two plants are the same height, we would equate Tn for both flowers. It becomes

2 + (n - 1)2.25 = 5.75 + (n - 1)1.5

2 + 2.25n - 2.25 = 5.75 + 1.5n - 1.5

Collecting like terms

2.25n - 1.5n = 5.75 - 1.5 - 2 + 2.25

0.75n = 4.5

n = 4.5/0.75

n = 6 weeks

4 0
2 years ago
-5/42×1/8×-21/17×-1/17
frutty [35]
The answer isn-0.00108131487 have a great day
3 0
3 years ago
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