Solve for x. Round to the nearest tenth, if necessary

Mathematics

1 answer:

Sonja [21]2 years ago

5 0

$\tan 61^{\circ}=\frac{59}{x}\\\\x=\frac{59}{\tan 61^{\circ}} \approx \boxed{32.7}$

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4x - 3y = -28 x + 5y = 39 cant seem to be able to figure the answer for this

Rus_ich [418]

value of x = -1 and value of y=8

Step-by-step explanation:

We need to solve the system of equations:

$4x - 3y = -28\,\,\,(1)\\x + 5y = 39\,\,\,(2)$

Multiply eq(2) with 4 and subtract with eq(1)

$4x-3y=-28\\4x+20y=156\\-\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,-\\--------\\-23y=-184\\y=\frac{-184}{-23}\\y=8$

So, value of y=8

Now, finding value of x by putting value of y in equation 2

$x+5y=39\\x+5(8)=39\\x+40=39\\x=39-40\\x=-1$

So, value of x = -1

value of x = -1 and value of y=8

Keywords: System of Equations

Learn more about System of Equations at:

#learnwithBrainly

4 0

3 years ago

How would you graph the following systems of equations ? y= -3x -7 x- 2y=-14

andrey2020 [161]

Solve both formulas to y=mx+b (slope intercept formula) where m=slope and b=y-intercept

y=-3/1x+-7

x-2y=-14
-2y=-14-x
y=7+1/2x

Start with the b variable so for problem 1 put a dot on 0,-7 and for problem 2 put a dot on 0,7

Then from -7 for problem 1 depending on whether the slope is negative or positive go down 3 and over right 1 therefore another point for problem one is marked, at 1,-10; for problem 2 up 1 and to the right 2; 2,8

For problem one connect the dots of 0,-7 and 1,-10

For problem two connect the dots of 0,7 and 2,8

7 0

3 years ago

HELP ME PLZZ I NEED HELP WITH THIS!!!

goldenfox [79]

I believe the answer is letter A

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3 years ago

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For what values of x is x2+2x=24 true? -6 and -4 -4 and 6 4 and -6 6 and 4

makkiz [27]

Answer:

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