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postnew [5]
3 years ago
5

What is the value of x? Enter your answer in the box.

Mathematics
2 answers:
Maslowich3 years ago
5 0

Answer:

x=9

Step-by-step explanation:

\frac{9}{72}  =  \frac{3x - 20}{56}

Cross multiply

504 = 216x - 1440

Transfer and isolate

\frac{504 + 1440 = 216x}{216}

\frac{1944 = 216x}{216}

9 = x

dimulka [17.4K]3 years ago
3 0

Answer:

9 cm

Step-by-step explanation:

9/(9+72) = (3x-20)/(3x-20+56)

9/81 = (3x-20)/(3x+36)

1/9 = (3x-20)/(3x+36)

3x + 36 = 27x - 180

24x = 216

x = 9cm

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Find the product of –1.5x and –0.25x.
Lana71 [14]

Answer:

0.375x^2

Step-by-step explanation:

(-1.5x)(-0.25x)  

= (-1.5)(0.25)(x)(x)

= 0.375x^2

8 0
2 years ago
A positive angle less than 360 degrees that is coterminal with -5 degrees is
nadya68 [22]

Answer:

\theta = 355

Step-by-step explanation:

Given

Let the angle be \theta

\theta < 360

\theta is co-terminal with -5

Required

Find \theta

Start by dividing 5 by 360 (ignore the negative)

\frac{5}{360} = 0.0138

The nearest integer greater than 0.0138 is 1.

<em>This implies that if you were to draw for this problem, the circle you would draw to show -5 degrees would go around 1 time</em>

So, \theta is calculated as:

\theta = -5 + 1*360

\theta = -5 +360

\theta = 355

7 0
3 years ago
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7 0
3 years ago
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Which of the following types of figures may not be a parallelogram?
sergejj [24]

Answer:

2) a trapezoid

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3 0
3 years ago
Solve through substitution
Ivanshal [37]

For this case we have the following system of equations:

-3x + 3y = 4\\y = x + 3

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The lines do not intersect.

Answer:

The system has no solution.

5 0
3 years ago
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