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Mashutka [201]
3 years ago
6

The function (n) = nr can be used to find the volume of air inside a basketball given its radius. What does V(r)

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

The volume is g(2f (t)) feet³

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Y = −1 / 4 (x + 4) 2 −1 on a coordinate plane using its vertex, focus, and directrix.
trasher [3.6K]

Answer:

Hello,

Step-by-step explanation:

do I remind you of the formula :

where (a,b) is the vertex and y=k the directrix

y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\\\y=-\dfrac{(x+4)^2}{4} -1 \\\\Using\ identification:\\a=-4\\2(b-k)=-4\\b+k=-2\\\\\left\{\begin{array}{ccc}b-k&=&-2\\b+k&=&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}2b&=&-4\\2k&=&0\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}b&=&-2\\k&=&0\\\end{array}\right.\\

Focus=(-4,-2)

Directrix: y=0

Vertex=(-4,-1)

6 0
2 years ago
Work out 2 x (8 + 52)
Virty [35]

Answer:

120

Step-by-step explanation:

2(60)

120

Quick maths.

8 0
2 years ago
Read 2 more answers
-6 - (-8) + 6 = <br> What is the value?
qaws [65]

Answer:

The answer is 8

Step-by-step explanation:

use order of operations.

*remember that there is an understood -1 in -(-8). this can also be written as -1(-8)*

-6-(-8)+6\\-6+8+6\\2+6\\8

hope this helps!

8 0
2 years ago
Give your answer as a mixed number. 2 6/7 ÷ 2/3 =?​
AfilCa [17]

2 6/7 ÷ 2/3

= 20/7 ÷ 2/3

20/7 × 3/2

= 60/14

reduce to it's lowest term

30/7 = 4 2/7

8 0
3 years ago
16(a+b)^2-49(a-b)^2 factorize the expression​
noname [10]

The given expression is a difference of squares, so we have

16 (<em>a</em> + <em>b</em>)² - 49 (<em>a</em> - <em>b</em>)² = 4² (<em>a</em> + <em>b</em>)² - 7² (<em>a</em> - <em>b</em>)²

… = (4 (<em>a</em> + <em>b</em>))² - (7 (<em>a</em> - <em>b</em>))²

… = (4 (<em>a</em> + <em>b</em>) - 7 (<em>a</em> - <em>b</em>)) (4 (<em>a</em> + <em>b</em>) + 7 (<em>a</em> - <em>b</em>))

… = (4<em>a</em> + 4<em>b</em> - 7<em>a</em> + 7<em>b</em>) (4<em>a</em> + 4<em>b</em> + 7<em>a</em> - 7<em>b</em>)

… = (-3<em>a</em> + 11<em>b</em>) (11<em>a</em> - 3<em>b</em>)

4 0
2 years ago
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