A clothing store is having a one

Mathematics

1 answer:

dangina [55]2 years ago

7 0

o saw this question om edge its b

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Simplify the following expression: (6.8 × 10^3) ×(4.54 × 10^6)

swat32

$(6.8\cdot10^3)\cdot(4.54\cdot10^6)=(6.8\cdot4.54)\cdot(10^3\cdot10^6)=30.872\cdot10^{3+6}\\\\=30.872\cdot10^9=3.0872\cdot10^{10}$

8 0

3 years ago

Can someone please answer 5, 6 and 7? Thank you.

Montano1993 [528]

Reduce a 24 cm by 36 cm photo to 3/4 original size.

The most logical way to do this is to keep the width-to-height ratio the same: It is 24/36, or 2/3. The original photo has an area of (24 cm)(36 cm) = 864 cm^2.

Let's reduce that to 3/4 size: Mult. 864 cm^2 by (3/4). Result: 648 cm^2.

We need to find new L and new W such that W/L = 2/3 and WL = 648 cm^2.

From the first equation we get W = 2L/3. Thus, WL = 648 cm^2 = (2L/3)(L).

Solve this last equation for L^2, and then for L:

2L^2/3 = 648, or (2/3)L^2 = 648. Thus, L^2 = (3/2)(648 cm^2) = 972 cm^2.

Taking the sqrt of both sides, L = + 31.18 cm. Then W must be 2/3 of that, or W = 20.78 cm.

Check: is LW = (3/4) of the original 864 cm^2? YES.

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3 years ago

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mylen [45]

Answer:

B) 8x10^(-8)

Hope it helps

7 0

2 years ago

What is the answer for this equation 600 is 4/9 of what number

horrorfan [7]

Answer: