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3 years ago

Solve equation 7-5c=17+5z

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

Answer:

This question is impossible! For two different variables, we need two different equations. Without that, there is no hope! :)

Kryger [21]3 years ago

3 0

Answer:

c= -z-2

Step-by-step explanation:

$7-5c=17+5z\\\\\mathrm{Subtract\:}7\mathrm{\:from\:both\:sides}\\\\7-5c-7=17+5z-7\\\\Simplify\\\\-5c=5z+10\\\\\mathrm{Divide\:both\:sides\:by\:}-5\\\\\frac{-5c}{-5}=\frac{5z}{-5}+\frac{10}{-5}\\\\Simplify\\\\c=-z-2$

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Find the value of x. Round the length to the nearest tenth.

Mamont248 [21]

From right triangle trigonometry, we have the following:

$\displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side }$ ,

where the "opposite side" means the opposite side to angle with measure $35^o$ , and "adjacent side" means the adjacent side to angle with measure $35^o$ .

$tan(35^o)$ is a constant which can be found using a calculator.

In the calculator of the pc press: view - scientific - 35 - tan.

This gives $tan(35^o)=0.7$

Thus, back in the equation $\displaystyle{ tan(35^o)= \frac{opposite \ side }{adjacent \ side }$ we substitute as follows and solve:

$\displaystyle{0.7= \frac{x }{12 }\\\\$

$x=0.7\cdot12=8.4$

Answer: 8.4 cm

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ratelena [41]

Answer:

C. ∠10

Explanation:

A theorem states that the two angle that are in the same side and are opposite to each other, they add up to 180°, which is supplementary.

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3 years ago

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Vika [28.1K]

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Sidana [21]

Answer:

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Step-by-step explanation:

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