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3 years ago

Hours of Practice

Mathematics

2 answers:

Bingel [31]3 years ago

8 0

Answer:

A: from 0 to 4

Step-by-step explanation:

Elenna [48]3 years ago

4 0

Answer:a

Step-by-step explanation:hope this helps

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16-25(b+3) square

Andre45 [30]

Since 16 and 25 are perfect squares you can factor the first part.
4^2-5^2(b+3)^2
=(4-5(b+3))(4+5(b+3))
=(4-5b-15)(4+5b+15)
=(-11-5b)(19+5b)

Which can be expanded if necessary,
= -209+150b-25b^2

4 0

3 years ago

How did the first line get to the second line??? (Check Picture)

ddd [48]

Step-by-step explanation:

$15( \frac{11\pi}{6} ) \\ 15 \div 3 = 5 \\ 6 \div 3 = 2 \\ = 5( \frac{11\pi}{2} )$

$11 \times 5 \\ = \frac{55\pi}{2}$

8 0

3 years ago

What is the height of 840mm³.

Rus_ich [418]

Answer:

What?

Step-by-step explanation:

Possible answers could be

the factors of 840

IF the 840 is your area.

Factors of 840 which are your answers:

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420.

7 0

2 years ago

Y= (x-1)^2 + 2 change this equation into standard form

BaLLatris [955]

Answer:

x² - 2x + 3

Step-by-step explanation:

y = (x - 1)² + 2

= (x - 1)² + 2 [a - b]² = a²- 2ab + b²

= x²- 2x + 1 + 2

= x² - 2x + 3

Thus, the standard form of the equation is x² - 2x + 3

8 0

3 years ago

Look at this sequence of numbers: 0, 1, 2, 4, 6, 9, 12, 16, ? - what number should replace the question mark?

andreev551 [17]

Answer:

Step-by-step explanation:

0 to 1 = a difference of 1

1 to 2 = a difference of 2-1 = 1

===============

2 to 4 = a difference of 2

4 to 6 = a difference of 2

===============

6 to 9 = a difference of 3

9 to 12 = a difference of 3

===============

12 to 16 = a difference of 4

16 to 20 = a difference of 4

4 0

3 years ago