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2 years ago

Pls hurry and no links

Mathematics

2 answers:

patriot [66]2 years ago

6 0

Step-by-step explanation:

x = - 5

y = 2 . 5 ( - 5 ) - 8

= 2 . - 25 - 8

= - 50 - 8

y = - 58

x = 0

y = 2 . 5 ( 0 ) - 8

= 2 . 0 - 8

= 0 - 8

y = - 8

x = 5

y = 2 . 5 ( 5 ) - 8

= 2 . 25 - 8

= 50 - 8

y = 42

x = 10

y = 2 . 5x - 8

= 2 . 5 ( 10 ) - 8

= 2 . 50 - 8

= 100 - 8

y = 92

alina1380 [7]2 years ago

6 0

Answer:

-20.5

-8

4.5

Step-by-step explanation:

y = 2.5x - 8

x = -5

y = 2.5(-5) - 8

y = -12.5 - 8

y = -20.5

x = 0

y = 2.5(0) - 8

y = 0 - 8

y = -8

x = 5

y = 2.5(5) - 8

y = 12.5 - 8

y = 4.5

x = 10

y = 2.5(10) - 8

y = 25 - 8

y = 17

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melisa1 [442]

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Step-by-step explanation: You plug in the values where the variables are, then follow PEMDAS, beginning with 5 times 3.

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2 years ago

Vera and her roommates ate 1 1/3 pints of ice cream on Friday night and 1 1/6 pints of ice cream on Saturday night. How many pin

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3 years ago

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3 years ago

Read 2 more answers

Please help with the question in the picture!

Stella [2.4K]

Answer:

Tan C = 3/4

Step-by-step explanation:

Given-

∠ A = 90°, sin C = 3 / 5

METHOD - I

Sin² C + Cos² C = 1

Cos² C = 1 - Sin² C

Cos² C = $1 - \frac{9}{25}$

Cos² C = $\frac{25 - 9}{25}$

Cos² C = $\frac{16}{25}$

Cos C = $\sqrt{\frac{16}{25} }$

Cos C = $\frac{4}{5}$

As we know that

Tan C = $\frac{Sin C}{Cos C }$

Tan C = $\frac{\frac{3}{5} }{\frac{4}{5} }$

Tan C = $\frac{3}{4}$ 

METHOD - II

Given Sin C = $\frac{3}{5} = \frac{Height}{Hypotenuse}$

therefore,

AB ( Height ) = 3; BC ( Hypotenuse) = 5

∵ ΔABC is Right triangle.

∴ By Pythagorean Theorem-

AB² + AC² = BC²

AC² = BC² - AB²

AC² = 5² - 3²

AC² = 25 - 9

AC² = 16

AC ( Base) = 4

Since,

Tan C = $\frac{Height}{Base}$ 

Tan C = $\frac{AB}{AC}$

Hence Tan C = $\frac{3}{4}$ 

4 0

3 years ago