1 year ago

Which shows 0.00234 written in scientific notation?

1 answer:

6 0

It’s D

the reason why is because the multiplier must be between 1 and 10
(
1
≤
x
≤
10
)
so first more your decimal there which you get:
2.34
then just count how many numbers the decimal jumped, if the decimal moved left the exponent is positive and if it moved right, as in your number, the exponent is negative

yours moved 3

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Ivahew [28]

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saul85 [17]

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1 year ago

The manager at a restaurant keeps track of the number of calzones and slices sold each day and the total money received. On Sund

Natalija [7]

So we set it up like beofre

c=number of calzones
s=number of slices

total of 59 so
c+s=59

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use subsitution

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minus s both sides
c=59-s
subsitute 59-s for c in other equation

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minus 177 both sides
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7 0

4 years ago

Verify sin4x-sin²x=cos4x-cos²x is an identity.<br>the 4 is supposed to be small like the 2

kodGreya [7K]

Answer:

<h2>It's an identity</h2>

Step-by-step explanation:

$\sin^4x-\sin^2x=\cos^4x-\cos^2x\\\\Ls=\sin^2x(\sin^2x-1)=-\sin^2x(1-\sin^2x)=-\sin^2x\cos^2x\\\\Rs=\cos^2x(\cos^2x-1)=-\cos^2x(1-\cos^2x)=-\cos^2x\sin^2x\\\\Ls=Rs\\\\\text{used}\\\\a^n\cdot a^m=a^{n+m}\\\\\text{distributive property}\ a(b+c)=ab+ac\\\\\sin^2x+\cos^2x=1\to \sin^2x=1-\cos^2x\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x}$

3 0

3 years ago

Work out the sum of 1 4 , 4 8 and 2 3 . Give your answer as a mixed number in its simplest form

belka [17]

Answer:

1 2/3

Step-by-step explanation:

Given :

Find the sum of 1/2, 4 /8 and 2 /3

1/2 + 4/8 + 2/3

L.c.m = 24

(12 + 12 + 16) / 24

40 / 24

= 1 16/24

= 1 2/3

6 0

3 years ago