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3 years ago

Out of these numbers which two are perfect squares. 20.25, 32, 16.9, 3.24

Mathematics

1 answer:

a_sh-v [17]3 years ago

5 0

Answer:

<em><u>= yes, because the sqrt of 3.24 is 1.8</u></em>

<h2><em><u>20.25</u></em></h2><h3>= yes, because the sqrt of 20.25 is 4.5</h3>

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pashok25 [27]

Answer: $49.4

Step-by-step explanation:

Simple interest is calculated thus:

Principal × Rate × Time

Principal= $380

Rate= 13%= 13/100=

Time= 1

Therefore interest earned =380× 0.13×1

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3 years ago

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3 years ago

Read 2 more answers

Which equation calculates the number of 1/3-foot pieces that can be cut from a piece of

harina [27]

Answer:

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Step-by-step explanation:

Suppose you have a 7 feet long wood.

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To find this number of pieces, you have to divide the whole length of the wood by the length of one piece:

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8 0

3 years ago

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crimeas [40]

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2 years ago

F(x)=-9x^2-2x and g(x)=3x^2+6x-9, find (f-g)(x) and (f-g)(-4)

Sergio039 [100]

Answer:

$(f-g)(x) = -12x^{2} - 8x + 9$

(f-g)(-4) = -151

Step-by-step explanation:

To find f-g(x) we subtract the common terms. So

$f(x) = -9x^{2} - 2x$

$g(x) = 3x^{2} + 6x - 9$

(f-g)(x)

$(f-g)(x) = f(x) - g(x) = -9x^{2} - 2x - (3x^{2} + 6x - 9) = -9x^{2} - 2x - 3x^{2} - 6x + 9 = (-9 - 3)x^{2} + (-2 - 6)x + 9 = -12x^{2} - 8x + 9$

(f-g)(-4)

$(f-g)(x) = -12x^{2} - 8x + 9$

We replace x by -4

$(f-g)(-4) = -12(-4)^{2} - 8(4) + 9= -151$

(f-g)(-4) = -151

5 0

3 years ago