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4 years ago

What is the numerical expression?

Mathematics

1 answer:

Bond [772]4 years ago

7 0

I am assuming that the "x" is a variable instead of an operational sign.
In 4x(13 + 5) - 5, "(13 + 5) - 5" is the numerical expression because a numerical expression cannot have a variable.

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Two lines, A and B, are represented by the equations given below!

lara [203]

Answer:

The solutions to the system of equations are:

$y=-8,\:x=-4$

Thus, option C is true because the point satisfies BOTH equations.

Step-by-step explanation:

Given the system of the equations

$\begin{bmatrix}y=x-4\\ y=3x+4\end{bmatrix}$

Arrange equation variables for elimination

$\begin{bmatrix}y-x=-4\\ y-3x=4\end{bmatrix}$

$y-3x=4$

$-$

$\underline{y-x=-4}$

$-2x=8$

$\begin{bmatrix}y-x=-4\\ -2x=8\end{bmatrix}$

solve for x

$-2x=8$

Divide both sides by -2

$\frac{-2x}{-2}=\frac{8}{-2}$

$x=-4$

$\mathrm{For\:}y-x=-4\mathrm{\:plug\:in\:}x=-4$

$y-\left(-4\right)=-4$

$y+4=-4$

$y=-8$

The solutions to the system of equations are:

$y=-8,\:x=-4$

Thus, option C is true because the point satisfies BOTH equations.

8 0

4 years ago

Segment BC is a midsegment of triangle TUV. What is the length of segment VC?

lesya692 [45]

Answer:

A. a

Step-by-step explanation:

Because BC is a midsegment, the side lengths are cut in half so UY would be 2a and VC would be a

6 0

3 years ago

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Diego says the expression 14−0.6t helps him understand this situation. In this situation, what does this expression represent, a

Sonja [21]

Answer:

14-0.6t (x)

Step-by-step explanation:

7 0

4 years ago

Read 2 more answers

Una pelota de béisbol de 250 g gana una energía potencial de 85.75 J. ¿Qué altura alcanzó en ese momento?

umka21 [38]

Answer: 23

Step-by-step explanation:

2+1=3

6 0

3 years ago

Will mark brainlist to whoever answers first

Nonamiya [84]

Answer: A

Step-by-step explanation:

On a reflection through the x-axis, the x-coordinate of the point will not change, but the y-coordinate will be changed with a negative sign.

So, the reflection of the point is: (8, -7)

Therefore, Option(a)(8, -7) is true.

7 0

2 years ago