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vladimir2022 [97]
3 years ago
7

Which two expressions are equivalent

Mathematics
1 answer:
Blizzard [7]3 years ago
7 0

Answer:

C because 4 times 3x is 12x, and 4 times 4x is 16x

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Create an equivalent system of equations using the sum of the system and the first equation. x + 4y = 8 4x + y = 2
qaws [65]

Answer:

Equivalent systems of equations review

Step-by-step explanation:

We're given two systems of equations and asked if they're equivalent.

x + 4y = 8 (1)

4x + y = 2 (2)

Interestingly, if we sum the equations in System A, we get:

x + 4y = 8 \\4x + y = 2 \\

5x+5y=10

Replacing the first equation in System A with this new equation, we get a system that's equivalent to System A:

5x+5y=10

4x + y = 2

This is System B, which means that System A is equivalent to System B.

5 0
3 years ago
An inverse trigonometric function is used to find the value of an unknown obtuse angle in a triangle. The inverse function retur
Aleonysh [2.5K]

In this question, it is given that An inverse trigonometric function is used to find the value of an unknown obtuse angle in a triangle. The inverse function returns the angle 68°.

Since the angle is obtuse angle, it means  the measurement of the angle is greater then 90 degree. And to find the angle measurement, we have to subtract the given angle from 180 degree.

So the unknown angle is

180-68=112 degree

And that's the required answer .

4 0
3 years ago
Hey i rlly want to be done with thiss lol don't delete;-;
e-lub [12.9K]

Answer:

hello the correct answer is y=30x+20

Step-by-step explanation:

6 0
2 years ago
Need help ASAP. Please and thanks!:
Nuetrik [128]

Answer:

The answer is x=294 (B)

Step-by-step explanation:

Remember, all interior angles of a hexagon add to 720.

So add all the  given numbers first.

92+100+94+140+x= 720

426+x=720

-426 from both sides

x= 294

I know this is a week later since you posted the question, sorry.

3 0
2 years ago
Graph of a cubic polynomial that falls to the left and rises to the right with x intercepts negative 2, negative 1, and 2
xz_007 [3.2K]
Hello,

A cubic polynomial with -2,1,2 as roots is
f(x)=k*(x+2)(x+1)*(x-2)=k(x²-4)(x+1)=k(x^3+x²-4x-4)

Looking the answers ==>k=1


==>Answer A
6 0
3 years ago
Read 2 more answers
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