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aleksandrvk [35]
3 years ago
6

A rectangular window has a length of 81.47 cm and a width of 34.2 cm. What is the least precise measurement of the perimeter of

the window? A 231.4 cm B 231.34 cm C 231.3 cm D 231 cm
Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Answer:

In our case the least precise is the one with no decimal units, in our case 231 cm

Step-by-step explanation:

Perimeter=2(L+w)

where;

L=length=81.47 cm

W=width=34.2 cm

Replacing;

Perimeter=2(81.47+34.2)=231.34 cm

The most precise is the one with the highest decimal units, for example 231.34 in our case the least precise is the one with no decimal units, in our case 231

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Tanya [424]

Answer:

Your 1st answer is correct

Step-by-step explanation:

\frac{1}{(x - 1)}  -  \frac{3}{(1 - x)}   + 2

\frac{1}{(x - 1)}  -  \frac{3}{ - (x - 1)}  + 2

\frac{1}{(x - 1)}   +  \frac{3}{(x - 1)}  + 2

\frac{4}{(x - 1)}  + 2

\frac{4 + 2(x - 1)}{x - 1}

\frac{4 + 2x - 2}{x - 1}

= \frac{2x  + 2}{x - 1}

=  \frac{2(x + 1)}{x - 1}

6 0
2 years ago
If B is the midpoint of AC, AC=CD, AB=3x+4, AC=11x-17, and CE=49, find DE.
Luba_88 [7]

Answer:

11

Step-by-step explanation:

AB = 3x + 4 and AC which is twice of AB is equal to 11x - 17

2 (3x + 4) = 11x - 17

6x + 8 = 11x - 17

8 + 17 = 11x - 6x

25 = 5x

5 = x

AC = CD = 11x - 17 ➡ 11×5 - 17 = 38

CD = 38 and DE = 49 - 38 = 11

6 0
3 years ago
Which number line model represents 1 + (-3)?
a_sh-v [17]
<span>Which number line model represents 1 + (-3)?</span><span>
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6 0
3 years ago
LMNP is inscribed in circle R. If the measure of angle P = 57°, and angle L = angle N, what are the measures of angle M, angle L
eimsori [14]

Answer:

<h2>         m∠M = 123° ;  m∠L = m∠N = 90° </h2>

Step-by-step explanation:

A quadrangle LMNP is inscribed in circle which means:

m∠L + m∠N = m∠P + m∠M = 180°

m∠P + m∠M = 180°

57° + m∠M = 180°

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m∠L + m∠N = 180°       and    m∠L + m∠N

m∠L + m∠L = 180°  

2×m∠L = 180°

m∠L = 90°

m∠N = m∠L = 90°

5 0
3 years ago
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nata0808 [166]
The answer is A. I know this because you check the the hundredths place and it looks like 4 is less than 5 so it’s the first one
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3 years ago
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