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ra1l [238]
3 years ago
12

Please help quickly !

Mathematics
1 answer:
zepelin [54]3 years ago
3 0

Answer:

see below

Step-by-step explanation:

1/4x = -5/8

We want to isolate x

Multiply each side by the reciprocal of 1/4 to isolate x

Multiply each side by 4/1 or 4

4*1/4x = 4 * -5/8

x = -20/8

Simplify the improper fraction by first dividing by 4 on the top and bottom

x = -5/2

Change the improper fraction to a mixed number

x = -2 1/2

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11Alexandr11 [23.1K]

Answer:

77.77

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
This question is from trignometry of class 9.​
Ne4ueva [31]

Answer:

  4.2π cm ≈ 13.19 cm

Step-by-step explanation:

The length s of an arc of a circle with radius r and central angle θ (in radians) is ...

  s = rθ

Here, we have ...

  s = (5.6 cm)(3π/4) = 4.2π cm ≈ 13.19 cm

8 0
3 years ago
B Which of the statements is true about the polygons below E D 120 degrees C 90 90 60 60 120 degrees 90 90 F D Polygon A Polygon
mash [69]

Answer:

hope you can understand

5 0
1 year ago
1. (a) Use the integral test to show that P[infinity] n=1 1/n4 converges. (b) Find the 10th partial sum, s10, of the series P[in
scZoUnD [109]

Answer:

Step-by-step explanation:

a) \int\limits^{\infty} _1 {\frac{1}{n^4} } \, dn\\ =\frac{n^{-3} }{-3}

Substitute limits to get

= \frac{1}{3}

Thus converges.

b) 10th partial sum =

\int\limits^{10} _1 {\frac{1}{n^4} } \, dn\\ =\frac{n^{-3} }{-3}

=\frac{-1}{3} (0.001-1)\\= 0.333

c) Z [infinity] n+1 1 /x ^4 dx ≤ s − sn ≤ Z [infinity] n 1 /x^ 4 dx, (1)

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(question is not clear)

3 0
3 years ago
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valkas [14]

Answer:

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y is total cost

x is the number of DVD you buy (x>0)

5 0
3 years ago
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