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2 years ago

Rearrange factors to make the calculation easier. Then simplify. Justify your steps.40 X (23 X 50)

Mathematics

1 answer:

Reika [66]2 years ago

5 0

Given:

$40\times(23\times50)$

Rearrange the factors,

$\begin{gathered} 40\times(23\times50) \\ =(40\times50)\times23 \\ =2000\times23 \\ =46000 \end{gathered}$

Answer: 46000.

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Is the y-intercept of the graph of y = ax always 0? Explain.

just olya [345]

Answer:

yes

Step-by-step explanation:

on a graph, if you need it to be proportional, it has to start at (0,0)

if you need it to not be proportional, it can start anywhere except (0,0)

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4 years ago

How do you solve x+2=-29

Levart [38]

Answer:

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Step-by-step explanation:

Get x by itself by subtracting 2 from both sides. -29-2=-31.

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4 years ago

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Answer:

39 ft squared

Step-by-step explanation:

Find the area of the rectangles by splitting it into 2 rectangles

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4 years ago

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kvv77 [185]

Answer:

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Step-by-step explanation:

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4 years ago

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Find the zeros of the function in the interval (-2 pie, 2 pie). f(x) = 3 cos x

Fantom [35]

Answer:

Roots are -π/2 and π/2

Step-by-step explanation:

${ \bf{f(x) = 3 \cos(x) }}$

when x is -2π:

${ \sf{f( - 2\pi) = 3 \cos( - 2\pi) }} \\ { \sf{ = 3}}$

hence -2π is not a zero of the function

when x is 2π:

${ \sf{f(2\pi) = 3 \cos(2\pi) }} \\ { \sf{ = 3}}$

hence 2π is not a zero of the function

when x is π/2:

${ \sf{f( \frac{\pi}{2}) = 3 \cos( \frac{\pi}{2} ) }} \\ { \sf{ = 0}}$

Hence ±π/2 is the zero of the function.

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3 years ago