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4 years ago

−t=9(t−10) helppp meeee show work too thank uu<3

Mathematics

1 answer:

Anestetic [448]4 years ago

5 0

-t=9(t-10) = -t=9t-90
-t/-1 = 9t-90/ -1 = t = -9t+ 90
t + (-9t) = -9t + 90 (-9t) = 10t = 90
10t/ 10 = 90/10 = t= 9

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A ladder is leaning up against a 70 foot wall at an angle of elevation of 38° how far is the foot of the latter from the wall? R

SIZIF [17.4K]

Tanα=h/x

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x=70/tan38 ft

x≈89.6 ft (to nearest tenth of a foot)

Note: the question seems strange, (because this would make the ladder almost 114 feet long!) or are we to assume as I did that the ladder is leaning against a point 70 feet high, or should if be a 70 foot ladder leaning against a wall of unknown height?

If it is just a 70 ft ladder at a 38° inclination the:

cosα=x/L

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A debt of $9,388.81 is repaid by payments of $1,160.62 in 4 months, $1,178.29 in 13 months, and a final payment in 23 months. If

____ [38]

Answer:

after 4 months $8352.96

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3 years ago

Show all work to identify the discontinuity and zero of the function f of x equals 4 x over quantity x squared minus 16

Leto [7]

Answer:

Discontinuity of function occurs when x = 4 or x = -4

zero of function is when x=0

Step-by-step explanation:

We are given:

$f(x) = \frac{4x}{x^2 - 16}$

Discontinuity of the function occur when the denominator is equal to zero.

So, we need to find the values of x that makes the denominator zero.

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3 years ago