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zloy xaker [14]
3 years ago
10

What value of x makes the equation 7x-2(3x+1)=4x-(3-x)-19 true?

Mathematics
1 answer:
nekit [7.7K]3 years ago
3 0

Answer:

X=5

Step-by-step explanation:

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steposvetlana [31]

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Aisha gross pay equals $472

Step-by-step explanation:

If Aishat is paid $8.00 per hour, then for 39 hours, she will get

39 × 8 = $312

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3 years ago
How much is 1/2 of a century
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Half a century is 50 years. a century is 100 years
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There are 10 fruits in a basket and 5 of them are apples. Write the ratio in simplest form.
klasskru [66]

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3 years ago
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find the volume of a solid that is generated by rotating around the indicated axis the plane region bounded by the giveb curves:
Fofino [41]
Assuming the area below the line y=0 (i.e. x>1) does NOT count, the area to be rotated is shown in the graph attached.

A. Again, using Pappus's theorem,
Area, A = (2/3)*1*(1-(-1))=4/3  (2/3 of the enclosing rectangle, or you can integrate)
Distance of centroid from axis of rotation, R = (2-0) = 2
Volume = 2 π RA = 2 π 2 * 4/3 = 16 π / 3 (approximately = 16.76 units)

B. By integration, using the washer method
Volume = 2\pi\int_{-1}^1(1-x^2)(2-x)dx
=2\pi\int_{-1}^1(x^3-2x^2-x+2)dx
=2\pi[x^4/4-2x^3/3-x^2/2+2x]_{-1}^{1}
=2\pi([1/4-2/3-1/2+2]-[1/4+2/3-1/2-2])
=2\pi(8/3)
= 16 π /3   as before



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3 years ago
WHOEVER ANSWERS FIRST GETS BRAINLIEST AND I NEED AN EXPLANATION PLZ
Kruka [31]

Answer:

1.25b

Step by step explanation:

6 0
3 years ago
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