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Elden [556K]
3 years ago
13

Evaluate each expression for the given values of the variables.

Mathematics
1 answer:
vazorg [7]3 years ago
6 0
-140 if that's x instead of l

Mark brainliest please
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In triangle ABC angle "A" equals 92° and "C" equals 24°. Whats the exterior angle of "B"?
garik1379 [7]
Hey there! :D

All angles in a triangle equal 180 degrees. An exterior angle is supplementary to the interior angle next to it. (also equal to 180 degrees) 

92+24+<B= 180

116+<B= 180

Subtract 116 on both sides. 

<B= 64

So, 

180-64= 116 

The exterior angle of <B is equal to 116 degrees. 

I hope this helps!
~kaikers
6 0
3 years ago
Which expression could be substituted for y in the second equation to find the value of x?
EastWind [94]

value of x is x=-\frac{29}{4} and value of y is y=-\frac{9}{2}

Step-by-step explanation:

We need to find Which expression could be substituted for y in the second equation to find the value of x

The given equations are:

2x-y=-10\,\,\,(1)2x - 3y= -1\,\,\,\,(2)

For putting value of y in second equation, we will find from equation 1

From equation 1:

2x-y=-10\\-y=-10-2x\\y=10+2x

Putting value of y i.e y=10+2x in equation (2) to find value of x

2x-3y=-1\\2x-3(10+2x)=-1\\2x-30-6x=-1\\-4x=-1+30\\-4x=29\\x=\frac{29}{-4}\\x=-\frac{29}{4}

So, now finding value of y by putting value of x= -29/4 in eq(1)

2x-y=-10\\2(-\frac{29}{4})-y=-10\\-\frac{29}{2}-y=-10\\-y=-10+\frac{29}{2}\\ -y=\frac{-20+29}{2}\\ -y=\frac{9}{2}\\ y=-\frac{9}{2}

So, value of x is x=-\frac{29}{4} and value of y is y=-\frac{9}{2}

Keywords: System of equations

Learn more about System of equations at:

  • brainly.com/question/6075514
  • brainly.com/question/7490805
  • brainly.com/question/13168205

#learnwithBrainly

6 0
4 years ago
Nicole is a high school basketball player. In a particular game, she made some three point shots and some two point shots. Nicol
MissTica

Answer:

the point of interception is (8,3)

Step-by-step explanation:

The x variable represents the number of three point shots made and the y variable represents the number of two point shots made. Since the lines intersect at the point (8,3) we can say:

Nicole made 8 three point shots and 3 two point shots.

7 0
3 years ago
Math Problem: Half-Life
dimulka [17.4K]
The third equation is the correct one. After 100 years, about 115 grams will remain.
4 0
3 years ago
How to solve an exponential equation with unlike bases
Dmitriy789 [7]

Answer:


Step-by-step explanation:

Solving Exponential Equations with Different Bases.

Step 1:  Determine if the numbers can be written using the same base. If so, stop and use Steps for

Solving an Exponential Equation with the Same Base. If not, go to Step 2.

Step 2:  Take the common logarithm or natural logarithm of each side.

Step 3:  Use the properties of logarithms to rewrite the problem. Specifically, use Property 5 which

says

Step 4:  Divide each side by the logarithm.

Step 5:  Use a calculator to find the decimal approximation of the logarithms.

Step 6:  Finish solving the problem by isolating the variable.

3 0
3 years ago
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