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3 years ago

What graph is the function y= -2 cos20

Mathematics

1 answer:

suter [353]3 years ago

7 0

Answer:

Step-by-step explanation:

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Find the volume or air 4m by 5m which is only 3m high

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Answer:

volume of cuboid=l×w×h

volume of cuboid=4×5×3=60cm³

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3 years ago

Solve for x. −1/5x≥−2

Rzqust [24]

Answer:

x ≤ -10

Step-by-step explanation:

distribute -2 into your denominator (5)

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4 years ago

Please help me on this !!! :))) ill give brainiest

solmaris [256]

It is y=5 and x=10 !!!!!

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3 years ago

What is the x-coordinate of the point of intersection for the two lines below?

Brut [27]

Answer:

From the graph, it is clear that the point of intersection is:

(x, y) = (-4, -1)

And the x-coordinate of the point of intersection for the two lines is:

x = -4

Step-by-step explanation:

As we know that the solution of the system of equations is the point of intersection. Let us solve it.

Given the system of equations

$\begin{bmatrix}2x+y=-9\\ 2x-5y=-3\end{bmatrix}$

solving the system of equations

subtracting 2x+y = -9 from 2x-5y = -3

$2x-5y=-3$

$-$

$\underline{2x+y=-9}$

$-6y=6$

$\begin{bmatrix}2x+y=-9\\ -6y=6\end{bmatrix}$

solving for y

$-6y=6$

Divide both sides by -6

$\frac{-6y}{-6}=\frac{6}{-6}$

$y=-1$

$\mathrm{For\:}2x+y=-9\mathrm{\:plug\:in\:}y=-1$

$2x-1=-9$

$2x=-8$

Divide both sides by 2

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

$x=-4$

Thus, the x-coordinate of the point of intersection for the two lines below will be:

$x=-4$

Also, the graph is attached.

From the graph, it is clear that the point of intersection is:

(x, y) = (-4, -1)

And the x-coordinate of the point of intersection for the two lines is:

x = -4

4 0

3 years ago

Need help 10-14 idk and to do ??

Kryger [21]

10-14 is -4. Think of it as 14-10=4 but you turn the 4 into a negative number. Hope that answers

4 0

3 years ago