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2 years ago

I don’t understand any of these, please can someone help

Mathematics

1 answer:

sveta [45]2 years ago

7 0

Answer:

you have to answer the question and then solve the question

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Sloan [31]

Answer:

1:3.5

sorry if I'm wrong I really know it but still serve them wrong

Step-by-step explanation:

5 0

2 years ago

How to solve the problem

Mice21 [21]

Answer:

Step-by-step explanation:

PEMDAS

6 + (3^3) ÷ 9

6 + [(27) ÷ 9]

6 + [ 3 ]

= 9

5 0

2 years ago

Using a sheet of graph paper, solve the following system of equations graphically. Be sure to show any work, use a straight edge

madam [21]

Answer:

Step-by-step explanation:

Given system is

$\left \{ {{x+y=0} \atop {x-y+2=0}} \right.$

If we graph, the solution would be the interception point between these two lines, because each linear equation represents a line. The lines are attached.

In the graph, you can observe that the solution is the point (-1,1), that is x = -1 and y = 1.

Now, if we want to solve this system by another method, we can just sum both equations and solve for <em>x</em>

$\left \{ {{x+y=0} \atop {x-y+2=0}} \right.$

$2x+2=0\\x=\frac{-2}{2}=-1$

Then, we replace this value in one equation to find the other value

$x+y=0\\-1+y=0\\y=1$

Therefore, the solution is (-1,1)

4 0

2 years ago

Which of the following represents<br> the graph of this equation?<br> y = 1/2|x|

Aliun [14]

The graph is shown in the attached image.

6 0

1 year ago

To estimate the length of the lake, caleb starts at one end of the lake and walk 95m. He then turns a 60° angle and walks on a n

aivan3 [116]

Answer:

Length of the lake is 97.30 m

Step-by-step explanation:

We have given Caleb starts at one end of the lake and walk 95 m

So $d_1=95m$

And then he turns at an angle of 60°

So $\Theta =60^{\circ}$ and then again walk 8 m

So $d_2=8m$

We have to fond the total length of the lake , that is d

Total length of the lake is given by $d=\sqrt{d_1^2+d_2^2+2d_1d_2cos\Theta }=\sqrt{95^2+8^2+2\times 95\times 8\times cos60^{\circ}}=97.30m$

So length of the lake is 97.30 m

3 0

2 years ago