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matrenka [14]
4 years ago
13

Find the value of each variable. Write the equation and solve showing ALL the work.

Mathematics
1 answer:
Wittaler [7]4 years ago
3 0

Answer:

x = 96°

y = 102°

Step-by-step explanation:

Angles on a straight line add up to 180

78 + y = 180

y = 180 - 78

y = 102

Angles in a quadrilateral add up to 360

78 + 90 + x + x = 360

78 + 90 + 2x = 360

168 + 2x = 360

2x = 360 - 168

2x = 192

x = 192/2

x = 96°

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Let f(x,y) =2x^3 y-xy find the domain
Rina8888 [55]

9514 1404 393

Answer:

  x, y ∈ all real numbers

Step-by-step explanation:

For your function ...

  f(x, y) = 2x^3·y -xy

there appear to be no values of x or y for which the function is undefined. The domain for both x and y is "all real numbers."

8 0
4 years ago
Jamal wrote the inequality x/16 <6 . Which situation best represented by this inequality Helpppppp
Wittaler [7]

Given problem;

   Inequality equation;

               \frac{x}{16}   <   6

Before we solve, let us first translate this problem.

It simply states that for what value(s) of x will the expression be less than 6.

To find this value, we can simply carry out the normal mathematical simplification.

Simply multiply both sides by 16 to reduce the fraction;

      16  x (\frac{x}{16})   <  6 x 16

         

 On the left hand side, 16 will cancel out;

                   x <  96

Any value for which x is less than 96 will make the solution of this problem less than 6.

For example, 95;

                       \frac{95}{16}  = 5.93

This value is less than 6

4 0
3 years ago
Subtract 7x2+4x-9 from 5x2+10x-5
swat32

Answer:

2x^2-6x-4

Step-by-step explanation:

(7x2 + 4x - 9)

-(5x2 + 10x - 5)

=

7x^2-5x^2=2x^2

4x-10x=-6x

-9-(-5)=-4

thus, your answer is 2x^2-6x-4

5 0
3 years ago
Read 2 more answers
If anyone has a graphing calculator with them and can help me do these two problems<br> Algebra 1
katrin2010 [14]

Answer:

3a) y = -0.1x +26000

3b) $16500

4a) y = 8.2x - 16451.27

4b) 79.93

Step-by-step explanation:

3a) y = -0.1x +26000

3b) If the odometer reads 95000 we need to plug in that value for x: y = -0.1(95000) + 26000 = $16500

4a) y = 8.2x - 16451.27

4b) To estimate the number the rabbits in the year 2016, we need to plug in that value for x: y = 8.2(2016) - 16451.27 = 79.93 = 80 rabbits

5 0
3 years ago
11-3x-7-3x=7 <br> x=?<br> PLEASE HELP I REALLY NEED IT
erastova [34]

Answer:

x=-1/2

Step-by-step explanation:

-6x+4=7

-6x=7-4

-6x=3

x=3/-6

x=-1/2

3 0
4 years ago
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