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xeze [42]
3 years ago
12

Will someone help me with these 2 questions please?

Mathematics
1 answer:
masya89 [10]3 years ago
4 0
1. Use pythagoras theory
(7.1)^2 + (3.4)^2 = AB^2
AB = 7.87 (3 sig figures ) (check answer in calculator )

2. Use trigonometry
Tan(x)=opp/adj
Tan(x)=13.4/3.7
X=tan^-1 (13.4/3.7)
X= 74.6
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Which results only in a horizontal compression of y= 1/х by a factor of 6?
marta [7]

Answer:

I'm assuming you mean a compression of factor 6

In that case, it will be h = 1/6x

5 0
3 years ago
12x-4x+3+11 help me solve this problem
daser333 [38]

Answer:

8x + 14

Step-by-step explanation:

12x - 4x + 3 + 11 <em>(</em><em>Subtract</em><em> </em><em>12x</em><em> </em><em>-</em><em> </em><em>4x</em><em>)</em>

8x + 3 + 11<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>(</em><em>Add</em><em> </em><em>3</em><em> </em><em>+</em><em> </em><em>1</em><em>1</em><em>)</em>

8x + 14

Tip: the like-terms 12x and 4x can be subtracted like regular numbers because they have the same variable and exponent.

6 0
3 years ago
PLEASE HELP ME!! LAST ASSIGNMENT
Darya [45]

Answer:

u = 3

Step-by-step explanation:

\frac{10}{14} = \frac{35}{u + 46} \\\\ 10(u + 46) = 35×14 \\\ 10u + 460 = 490 \\\ 10u = 490 - 460 \\\ 10u = 30 \\\ u = \frac{30}{10} \\\\ u = 3

I hope I've helped you.

5 0
2 years ago
Read 2 more answers
Please help me I need it bow
Tanzania [10]

Answer: A

Step-by-step explanation:

If the fraction is negative, and the numerator and denominator is negative, then if you were to do anything to them it would become a positive

6 0
3 years ago
Read 2 more answers
(1) Tom took a trip of 1,020 miles. He traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph.
Maurinko [17]
<h3>Answer:</h3>

B) 6 hours

<h3>Step-by-step explanation:</h3>

Let h represent the total trip time. Then h/2 is the time spent traveling at each speed. The distance covered is ...

... distance = speed · time

The sum of the distances in each mode is the total distance.

... 1020 = 55·h/2 +285·h/2

... 2040 = h·(55+285) . . . . multiply by 2

... 2040/340 = h = 6 . . . . . . . divide by the coefficient of h

The trip took a total of 6 hours.

4 0
3 years ago
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