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3 years ago

Please help, im having trouble cancelling out the numbers and letters! :) thank you

Mathematics

1 answer:

stiv31 [10]3 years ago

8 0

First change the devision to multiplication
second see the common letters and cross them

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Solve for z.<br><br> –2.9 + 4.2z = –14.73 − 12.74 + 0.3z<br><br> z =

Kobotan [32]

Answer:

$\boxed{z = -6.3}$

Step-by-step explanation:

$= > - 2.9 + 4.2z = - 14.73 - 12.74 + 0.3z \\ \\ = > - 2.9 + 4.2z = - 27.47 + 0.3z \\ \\ = > 4.2z - 2.9 = 0.3z - 27.47 \\ \\ = > 4.2z - 0.3z - 2.9 = - 27.47 \\ \\ = > 3.9z = - 27.47 + 2.9 \\ \\ = > 3.9z = - 24.57 \\ \\ = > z = - \frac{24.57}{3.9} \\ \\ = > z = - 6.3$

4 0

3 years ago

A colored chip is yellow on one side and red on the other. The chip was flipped 50 times and landed red side facing up 21 times.

faust18 [17]

42%

You have essentially a fraction, 21/50, which gives you a decimal of 0.42, or 42%.

(Flipped a total of 50 times, of those, it landed red side up 21 times, so 21/50)

8 0

3 years ago

Here’s a polygon:

kozerog [31]

Answer

IJKL & EFGH

<h3>Step-by-step explanation:</h3><h3>IJKL & EFGH are similar because they are the same.</h3>

7 0

3 years ago

Find the exact value of tan^-1(1)<br> A. Pi/4<br> B. 7pi/4<br> C. 5pi/4<br> D. 3pi/4

monitta

The answer to this equation is C. Hope this helps!

4 0

3 years ago

Math <3 helpp please URGENT

irina1246 [14]

Answer:

The answer to your question is x = 16.2

Step-by-step explanation:

Data

angle = 61°

Opposite side = x

Adjacent side = 9

To solve this problem use trigonometric functions. The trigonometric function that relates the Opposite side and the adjacent side is tangent.

tan Ф = Opposite side / Adjacent side

-Solve for Opposite side (x)

x = Adjacent side x tan Ф

-Substitution

x = 9 tan 61

-Simplification

x = 9 (1.804)

-Result

x = 16.2

6 0

3 years ago