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Vinil7 [7]
3 years ago
10

Please i need help asap!!!!!!!!!!!!!!​

Mathematics
1 answer:
Ulleksa [173]3 years ago
6 0

Answer: it came out blurre for me

Step-by-step explanation:

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Which expression is equivalent to (r^5/4
Mademuasel [1]

<u>Answer:</u>

2

<u>Step-by-step explanation:</u>

• Multiplying two numbers with same bases is the same as adding their powers:

∴ (\frac{4^{\frac{5}{4} } \cdot 4^{\frac{1}{4} }}{4^{\frac{1}{2} }})^{\frac{1}{2} }

⇒ (\frac{4^{\frac{5}{4} } ^ + ^{\frac{1}{4} }}{4^{\frac{1}{2} }})^{\frac{1}{2} }

⇒ (\frac{4^{\frac{6}{4}  }}{4^{\frac{1}{2} }})^{\frac{1}{2} }

• Dividing two numbers with same bases is the same as subtracting their powers:

∴  (\frac{4^{\frac{6}{4}  }}{4^{\frac{1}{2} }})^{\frac{1}{2} }

⇒ (4^{{\frac{6}{4} - \frac{1}{2} }})^{\frac{1}{2} }

⇒  (4^{1})^{\frac{1}{2} }

⇒  4^{\frac{1}{2}

• Raising anything to the power of  \frac{1}{2} is the same as square-rooting it:

∴  4^{\frac{1}{2}

⇒ \sqrt{4}

⇒ 2

3 0
2 years ago
Tina practiced piano for 15 hours last month and 45 hours this month A. Use multiplication to write a statement comparing the ho
KonstantinChe [14]

Answer: The answer is (a) 3 × x = y   and   (b) x + x + x = y.

Step-by-step explanation: Let 'x' and 'y' denote the number of hours that Tina practised last month and this month respectively.

Then, according to the given information, we have

x = 15   and   y = 45.

We can write the relation between 'x' and 'y' in two forms as follows -

(a) Multiplication form :   3 × 5 = 15  implies 3 × x = y.

(b) Addition form : 15 +15 +15 = 45  implies x + x + x = y.

Thus, the answers are (3 × x = y) and  (x + x + x = y).


4 0
3 years ago
What is the volume of the cylinder below? A cylinder with a height of 12 millimeters and diameter of 18 millimeters. 108 pi mm3
Artemon [7]

Answer:

V =972 pi mm ^3

Step-by-step explanation:

The diameter is 18 so the radius is 1/2 of the diameter

18/2 = 9

r=9

The volume of a cylinder is

V = pi r^2 h

V = pi (9)^2 12

V =972 pi mm ^3

8 0
3 years ago
Read 2 more answers
Find the difference of 3/4 and 1/28
Katen [24]

Answer:

Step-by-step explanation:

3/4- 1/28

3(7)/4(7)= 21/28-1/28

=20/28

=5/4

3 0
3 years ago
Read 2 more answers
PLZ HELP!!! WILL GIVE BRAINLIEST
omeli [17]

A) A rational number that is between 9.5 and 9.7 could be 9.6 because it can be written as a fraction (in this case 9 6/10 or 9 3/5)

B) An irrational number could be the square root of 91 because it's value cannot be written as a fraction, as with all other square roots of non-perfect squares. sqrt(91) is about 9.54 rounded to the nearest hundredth.

Hope this helped!

7 0
3 years ago
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