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2 years ago

What are the vertex and the axis of symmetry of the parabola shown in the diagram below?

Mathematics

1 answer:

dangina [55]2 years ago

4 0

Answer:

vertex = (-2,-3)

axis of symm: x= -2

Step-by-step explanation:

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Please answer this question now

alisha [4.7K]

Answer:

If it's not too late by now, the answer is 19.9 $mm^{2}$

3 0

2 years ago

What is the volume of a sphere that has a 12m diameter?

lesya [120]

Volume of Sphere = (4/3)*(pi)*(r^3)

r = (D/2) = 6 m

  =<span>(4/3)*(pi)*((6^3)

  = 904.7786.. m^3
I hope this helps.</span>

5 0

3 years ago

Jill flipped a coin 40 times. The coin landed as heads 28 times and tails 12 times. Based on her results, which of the following

ella [17]

There are many conclusions we can come to for this!

70% of the flips were heads, and 30% are tails

28/40 was heads, and 12/40 were tails

There were more heads than tails

There were 14 more heads than tails

:)

8 0

3 years ago

Read 2 more answers

if 18 meters of high resistance wire with a diameter of 1.2 mm has a resistance of 10 ohms, what is the resistance of 27 m of th

Stells [14]

The electrical resistance of a wire varies as its length and inversely as the square of the diameter.
R = (k*L)/(d^2)
where k = proportionality constant
Since the two wires have the same material, their proportionality constant is same.
Equating that
(R1*d1^2)/L1 = (R2*d2^2)/L2

Given that R1 = 10 ohms, d1 = 1.2 mm or 0.0012 m, L1 = 18 m, d2 = 1.5 mm or 0.0015 m, L2 = 27 m, and R2 is unknown.
Therefore
[10*(0.0012^2)]/18 = [R2*(0.0015^2)]/27
R2 = 9.6 ohms

6 0

3 years ago

A worker earns $5.15/h receives a raise. She now earns $6/h. Find the percent of increase in her hourly rate of pay.

Svetllana [295]

Answer:

The percentage increase in worker wages in hourly rate of pay is 16.5%

Step-by-step explanation:

Given as :

The Initial wages earn by worker = $ 5.15 per hour

The Final wages earn by worker = $ 6 per hour

Let The percentage increase in her hourly rate of pay = x %

Now, According to question

x % = $\dfrac{\textrm Final earning - \textrm Initail earning}{\textrm Initial earning}$

or, x = $\dfrac{\textrm $ 6 - \textrm $ 5.15}{\textrm $ 5.15}$ × 100

or, x = $\frac{0.85}{5.15}$ × 100

or, x = 0.165 × 100

∴ x = 16.5%

So , Percentage increase in wages = x = 16.5 %

Hence The percentage increase in worker wages in hourly rate of pay is 16.5% Answer

5 0

3 years ago