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3 years ago

Sam can do 120 jumping jacks in two minutes, how many jumping jacks can he complete in 5 mins.? (plz answer quick)

Mathematics

2 answers:

Alexxx [7]3 years ago

8 0

Answer:

300 jumping jacks

Step-by-step explanation:

120 ÷ 2 = 60 jumping jacks per minute

60 × 5 = 300 jumping jacks

Sam can do 300 jumping jacks in 5 minutes.

Hope that helps.

maria [59]3 years ago

3 0

Answer:

Step-by-step explanation:

120 / 2 = 60 (jumping jacks per minute)

60 * 5 = 300

Best of Luck!

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8 (3f - g) when f = 9 and g = -3

Neko [114]

Step-by-step explanation:

8(3f-g)

when f=9, g=-3, then

8(3×9-(-3))
8(27+3)
8(30)
240

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3 years ago

Which equation is the direct variation equation if f(x) varies directly with x and f(x)=-2 when x=6

Agata [3.3K]

Answer:

$f(x)=-x/3$

Step-by-step explanation

Given f is a direct variation equation (Direct variation is when one variable is equal to a constant times another variable, with no additions or subtractions alongside).

Now by the above condition let the constant be "c".Then

$f(x)=cx$

also given that $f(x)=-2$ when $x=6$

on substituting the above values,

$-2=c(6)$

$c=-2/6$

$c=-1/3$

Therefore our equation is $f(x)=-x/3$

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3 years ago

What are the coordinates of the image produced by applying the composition ry o T0-3 to the point (3, 5)? A. (–3, 2) B. (–3, 8)

Gennadij [26K]

Answer:

C. (3,6)

explenation

We are given that,

The point (-3,-6) is transformed by the rule .

That is, the point is reflected across y-axis and then reflected across x-axis.

That is, the rule for the transformation is (x,y) → (-x,y) → (-x,-y).

So, we get,

(-3,-6) → (3,-6) → (3,6)

Thus, the co-ordinates of the image are (3,6).

So, option C is correct.

3 0

3 years ago

Read 2 more answers

Which set of ordered pairs represents a function? {(−1,−3),(0,−7),(3,3),(3,−4)} {(7,9),(−5,7),(−5,8),(4,−4)} {(−6,−1),(−8,4),(−5

Jlenok [28]

Ordered pair{(−6,−1),(−8,4),(−5,4),(3,−9)} from the given set of ordered pairs represents the function.

As given in the question,

Given set of ordered pairs following is the one which represents the function :

{(−1,−3),(0,−7),(3,3),(3,−4)}

In the given set of ordered pair for input value 3 there are two outputs 3 and -4 , therefore it is not a function.

{(7,9),(−5,7),(−5,8),(4,−4)}

In the given set of ordered pair for input value -5 there are two outputs 7 and 8 , therefore it is not a function.

{(−6,−1),(−8,4),(−5,4),(3,−9)}

In the given set of ordered pair each input has unique single output. Therefore it is a function.

{(−1,0),(−1,−4),(8,−3),(−4,−6)}

In the given set of ordered pair for input value -1 there are two outputs 0 and -4 , therefore it is not a function.

Therefore, ordered pair{(−6,−1),(−8,4),(−5,4),(3,−9)} from the given set of ordered pairs represents the function.

Learn more about function here

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1 year ago

What is cos^2x (sec^2x - 1)

otez555 [7]

Answer:

cos²x.sec²x =1 (formula)

cos and sec are reciprocal to each other

cos²x=1/sec²x

now from the eq above,open the brackets and multiply

1-cos²2x

sin²2x

7 0

3 years ago