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3 years ago

Help will give Brainly points

Mathematics

1 answer:

Alexandra [31]3 years ago

5 0

Answer:

Use the SINE RULE:

$\frac{a}{ \sin( \alpha ) } = \frac{b}{ \sin( \beta ) }$

$\frac{6}{ \sin(60) } = \frac{x}{ \sin(90) }$

$x = \sin(90) \times \frac{6}{ \sin(60) }$

$x = 6.93$

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Write an equation of the line passing through the points (4,6) and (-2, - 18).

olga_2 [115]

Answer:

y = 4x – 10

Step-by-step explanation:

slope formula: $m = \frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

point-slope formula: $y-y_{1}=m\left(x-x_{1}\right)$

Use slope formula and plug in your numbers: $m = \frac{-18-6}{-2-4 }$
Solve for slope $m = 4$
Use the point-slope formula to solve for the equation: $y-6=4\left(x-4\right)$
Solve and find equation: $y=4x-10$

Note: When given two points you only need to pick one for the point-slope formula! Best to choose the positive one so you don't have to deal with the negatives!

Hope this helps! Please give Brainliest!

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3 years ago

Use the order of operations to simplify this expression <br> |7-8|•4+3(-1)

kkurt [141]

1 is the answer 1111111111

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3 years ago

A 17.2 gallon gasoline tank is 1/2 full. How many gallons will it take to fill the tank?

love history [14]

Answer:

8.6

Step-by-step explanation:

We know that the tank is filled halfway, and it can hold 17.2 gallons, so we can just divide to figure out how much is half the tank (the amount we need to fill it)

17.2 / 2 = 8.6

We can check our work by multiplying

8.6 x 2 = 17.2

So it would take 8.6gal to fill it up. I hope this helps :)

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3 years ago

Three U.S coins add to $1 If one of them is not half a dollar what is the smallest value coin?

Svet_ta [14]

The smallest value is $0.25 (a quarter) because you can use two quarters and a half dollar. Only one of them can't be a half dollar, but the other two can be.

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3 years ago

Which value is in the domain of f(x)?

MatroZZZ [7]

9514 1404 393

Answer:

Step-by-step explanation:

The function definition tells you its domain is ...

-6 < x ≤ 4

Values -7, -6, and 5 are not in this domain.

Of the listed values, only 4 is in the domain.

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3 years ago