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2 years ago

Which of the following is the solution of the system of equations shown?

Mathematics

1 answer:

Lina20 [59]2 years ago

5 0

Answer:

(-2,-2)

Step-by-step explanation:

The graph doesn't have unit marks, but you can see that the x- and y-coordinates of the intersection are equal, and they are both negative.

(-2,-2)

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Find the surface area of the sphere.

Mila [183]

$A = 201.1\:\text{cm}^2$

Step-by-step explanation:

Given: r = 4 cm

The surface area A of a sphere is given by

$A = 4\pi r^2 = 4\pi(4\:\text{cm})^2$

$\:\:\:\:\:= 201.1\:\text{cm}^2$

6 0

3 years ago

I need help asap plz

leva [86]

Answer: it’s C

Step-by-step explanation: because my teacher told me

4 0

2 years ago

Read 2 more answers

Mr. Saenz earned $240 for working 3 eight hour shifts at the lumber yard. What's his hourly wage?

kirza4 [7]

3 shifts*8 hours each= 24 hours worked

$240/24 hours= $10 per hr

Final answer: $10 per hr

7 0

3 years ago

Find the least number which when divisible by 20, 24, 32 and 38 leaves a remainder 5 in cach case

Olegator [25]

Answer:

18245

Step-by-step explanation:

We have to use L.C.M,

L.C.M(20,24,32,38)

2|20,24,32,38

2| 10 ,12 ,16 ,19

2| 5 , 6 , 8 , 19

2| 5 , 3 , 4 , 19

2| 5 , 3 , 2 , 19

L.C.M = 2 x 2 x 2 x 2 x 2 x 2 x 5 x 3 x 19

= 18240

Now for each case remainder is 5,

So the number is 18240+5

=> 18245

7 0

3 years ago

a buret is a tool designed to transfer precise amounts of liquid .A buret initially contains 70.00 millimeters of a solution and

katrin [286]

Let:

Vbu= Volume of the buret

Vbk= Volume of the beaker

A buret initially contains 70.00 millimeters of a solution and a beaker initially contains 20.00 ml of the solution the buret drips solution into the Beaker. each drip contains 0.05 mL of solution, therefore:

x = Number of drips

a = volume of each drip

$\begin{gathered} Vbu=70-ax \\ Vbk=20+ax \\ \text{where:} \\ a=0.05 \\ Vbu=70-0.05x \\ Vbk=20+0.05x \end{gathered}$

after how many drips will the volume of the solution in the buret and beaker be equal ? Vbu = Vbk:

$\begin{gathered} Vbu=Vbk \\ 70-0.05x=20+0.05x \\ \text{Solve for x:} \\ 0.1x=70-20 \\ 0.1x=50 \\ x=\frac{50}{0.1} \\ x=500 \end{gathered}$

5 0

1 year ago