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Nuetrik [128]
3 years ago
11

7x/z=10-r solve for z

Mathematics
1 answer:
Kisachek [45]3 years ago
3 0

Answer:

z= 7x/10-r

Step-by-step explanation:

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40 pts and Brainliest pls give detailed answer :)
horsena [70]

Answer:

58 ft

Step-by-step explanation:

So I attached a diagram that illustrates the triangle that is formed. We know an angle, as well as the hypotenuse. We are looking for the height, or in other words the opposite side of the angle. There is a trigonometric function defined as: sin(\theta) = \frac{opposite}{hypotenuse}. Using this we can plug in known values and solve for the opposite side, which I'll simply represent as x.

sin(46) = \frac{x}{80}

Multiply both sides by 80

sin(46) * 80 = x

Calculate sin(46) using a calculator (make sure it's in degree mode)

0.7193398 * 80 = x

Simplify

57.547 \approx x

Round this to the nearest foot

58 \approx x

4 0
2 years ago
I need help with this question, please help me for 10 points?
IgorC [24]

Answer:

c

Step-by-step explanation:

your right

6 0
3 years ago
los trabajadores de una mina se encuentran a 20 metros bajo tierra .Si excavan 3 metros desde alli suben otros 8 metros para cog
Yakvenalex [24]

Step-by-step explanation:

la carretilla estaba a unos 15 metros de altura

8 0
3 years ago
Plzzz guys help I'm so confused
GalinKa [24]

Answer:

<u>y = 320,000 ( 1.048 ) ^x</u>

x = number of years

(the  ^  before the x symbolizes "to the power of," but I can't do that on my keyboard)

Step-by-step explanation:

formula i used:

A = <em>amount that you start with</em>

t = amount of years / time

%increase: you must convert your percent (4.8%) to a decimal (0.048)

A ( 1 + %increase ) ^t

4 0
3 years ago
Read 2 more answers
If KM = NO and KM = PQ, then NO = PQ.
charle [14.2K]
The property shown is a B: substitution property, this is when you you the know that X=Y so X can be substituted in any equation with Y and Y can be substituted in any equation with X. hope this helps 
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