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Margarita [4]
3 years ago
10

one way to convert from inches to centimeters is 2 * the number of inches by 2.54. how many centimeters are how many centimeters

are there in 1/4 in
Mathematics
1 answer:
Deffense [45]3 years ago
7 0
Simply multiply 1/4 by 2.54 cm, i.e.

1/4 in. -> cm

= 1/4 × 2.54 cm

= 1/4 × 254/100 cm

= 254/400

= 127/200 cm.
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N^4-11n^2+30/n^4-7n^2+10
svlad2 [7]
N^8-18n^6+10n^4+810000/n^4
hope this helps!
6 0
2 years ago
Need help plz plz thx
Vera_Pavlovna [14]
The answer is D. To solve 3/5 ÷ 4/7 you would change it to 3/5 × 7/4.
5 0
3 years ago
Can someone please help me ASAP​
deff fn [24]

Answer:

QR = 17 cm

Step-by-step explanation:

Δ RST is a 5- 12- 13 triangle with hypotenuse RT = 13 cm , then

TS = 5 cm and PT = 2 × 5 = 10 cm

So PS = 10 + 5 = 15 cm

PS is parallel to the vertical line from vertex Q and intersects the horizontal line projected from SR of length 20 - 12 = 8 cm

Using the right triangle formed calculate QR using Pythagoras' identity

QR² = 15² + 8² = 225 + 64 = 289 ( take square root of both sides )

QR = \sqrt{289} = 17

3 0
3 years ago
Select all expressions that are equivalent to 12- 4x
snow_lady [41]
I think it’s just A the rest all come out with -12 after being distributed
7 0
3 years ago
What is the ratio of x to y?
abruzzese [7]
\frac{3}{2} = \frac{2x}{2x+y}

From any proportion, we get another proportion by inverting the extremes (or the means):

\frac{2x+y}{2} = \frac{2x}{3} = k

so we have:

2x=3k
2x+y=2k therefore:
3k+y=2k
y= - k

x=\frac{3}{2} k

\frac{x}{y} = - \frac{3}{2}

The corect answer is A. -3/2

or:

\frac{3}{2} = \frac{2x}{2x+y}

From any proportion, we get another proportion by inverting the extremes and the means:

\frac{2x+y}{2x} = \frac{2}{3}

We use a property of proportions:

\frac{a}{b} = \frac{c}{d}  where a, d are extremes and b,c are means and the product of the extremes equals the product of the means (a*d=b*c),

so we have

\frac{a-b}{b} = \frac{c-d}{d}  or

\frac{a+b}{b} = \frac{c+d}{d}  (you can check this also by "the product of the extremes equals the product of the means")

\frac{2x+y}{2x} = \frac{2}{3}

\frac{(2x+y)-2x}{2x} = \frac{2-3}{3}

\frac{y}{2x} = \frac{-1}{3}

3y = - 2x

\frac{x}{y} = -\frac{3}{2}



4 0
3 years ago
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