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3 years ago

(x – 2) / 4 – (3x + 5) / 7 = – 3, x = ? WILL GIVE BRAINLIEST

Mathematics

1 answer:

balu736 [363]3 years ago

6 0

Answer:

under

Step-by-step explanation:

change the underminator, we have

7×(x-2)-4×(3x+5)=-3×7×4

7x-14-12x-20=-84

-5x=-50

x=10

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PLZ HELP 10 POINTS

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Answer:

b = -2

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3. A person standing 3 feet away from the base of a lamp post casts a shadow 4 feet long. If the person is 6 feet tall and walks

german

Answer:

533.33 ft/min

Step-by-step explanation:

We are given that

x=3 feet

y=4 feet

Height of person,h=6 feet

$\frac{dx}{dt}=400 ft/min$

Triangle ABC and A'B'C are similar because all right triangles are similar

By using similarity property

$\frac{h'}{6}=\frac{7}{4}$

$h'=10.5 feet$

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Differentiate w.r.t t

$4.5\frac{dy}{dt}=6\frac{dx}{dt}$

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3 years ago

Dentify the relationship between corresponding terms of two patterns starting at zero. The first pattern follows the rule "add 9

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Answer:

Check Explanation

Step-by-step explanation:

Both Patterns start at 0

Pattern 1 follows the rule, add 9.

Pattern 1 has terms, 0, 9, 18, 27, 36, 45, 54, 63, 72, 81....

Pattern 2 follows the rule, add 3.

Pattern 2 has terms, 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54...

It is evident that all of the terms of the first pattern will eventually occur in the second pattern at some regular points.

- They both have the same first terms.

- Both Patterns have terms that are all multiples of 3.

- Every 3rd term that occurs after the first term in the second pattern (that is, the 4th term, 7th term, 10th term, 13th term, 16th term etc.), all represent the terms of the first pattern.

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3 years ago

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Answer:

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