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3 years ago

Which is the best way to find the

Mathematics

1 answer:

Vesnalui [34]3 years ago

5 0

Answer:

C. Elimination, because - 2y and 2y are opposites.

Step-by-step explanation:

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In square PORS, side PO is parallel to side SR, and side PS is parallel to side QR. The square is reflected across the y-axis an

DiKsa [7]

The square is reflected but the part Ellen sides would remain the same as the starting location.

Side PO would be parallel to side PS. INCORRECT

Side PQ would be parallel to side SR. CORRECT

Side PS would be parallel to side QR. CORRECT

3 0

2 years ago

The circular stream of water from a faucet is observed to taper from a diameter of 20 mm to 10 mm in a distance of 50 cm. Determ

steposvetlana [31]

Solution:

From Bernoulli equation

$\frac{1}{2}$ ρ $V_{1}^{2}$ + ρgh = $\frac{1}{2}$ ρ $V_{2}^{2}$ , where ρ is density of water, h – height difference and $V_{1}$ and $V_{2}$ are the velocities in upper and lower cross sections correspondingly. We take into account that the pressure in both cross-sections is the same and equal to the atmospheric one.

From the continuity and assuming water incompressible:

$\pi r_{1}^{2}$ $V_{1}$ = $\pi r_{2}^{2}$ $V_{2}$ , where $A_{1}$ and $A_{2}$ are the corresponding cross-sections. As the lower diameter is twice as low as the upper one, we can conclude that $V_{1} = \frac{V_{2}}{4}$

Inserting it back into Bernoulli equations produces:

$V_{1} = \sqrt{\frac{2}{15}gh} = 0.26m/s$ and the flow rate is

$\pi r_{1}^{2}V_{1} = \pi r_{2}^{2}V_{2} = 8.10^{-5} \frac{m^{3} }{s}$

6 0

3 years ago

If my finger was about 3 inches long, about how many centimeters would it be?

liraira [26]

It would be 7.62 centimeters. Just multiply how many inches you have by 2.54, and you'll have your conversion.
~Silver

7 0

3 years ago

Read 2 more answers

Omar wants to graph the system of equations below log6x=log2(x+4) which system of equations should Omar use

jenyasd209 [6]

The equation can be split into two equations:
y = log 6x
y = log 2(x + 4)

which is the system of equations that Omar can use to graph the single equation. The equations are logarithmic equations. They can be plotted directly into the coordinate system, use a logarithmic scale coordinate system, or linearize the equations before plotting.

7 0

3 years ago

Read 2 more answers

Solve x + x + 2 + 2x = -2 for x

kakasveta [241]

Answer:

-1

Step-by-step explanation:

4x=-4

X = - 1

That's itt

8 0

3 years ago