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4 years ago

Find the value of X and Y.

Mathematics

1 answer:

Elis [28]4 years ago

5 0

Answer:x=63.4° y= 8.16

Step-by-step explanation:

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Yuri measures the height of the water in an aquarium in one metric unit. he then moves the decimal point three units to the left

nika2105 [10]

The answer is Kilometres

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4 years ago

Read 2 more answers

XYZ has been bisected. Find the measurement of XYZ if m2 = 40°

Sladkaya [172]

Answer:

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3 years ago

Are irrational number? justify the reaason !!!! 5√32

sleet_krkn [62]

Answer:

The given number is irrational.

Step-by-step explanation:

It is known that $\sqrt{2}$ is irrational.

Given number can be converted as:

$5\sqrt{32} =$
$5\sqrt{16*2} =$
$5\sqrt{16}*\sqrt{2} =$
$5*4*\sqrt{2} =$
$20\sqrt{2}$

Since $\sqrt{2}$ is irrational, $20\sqrt{2}$ is also irrational (<em>the product of an irrational number and a rational number is irrational</em>), so the given number is irrational.

3 0

2 years ago

Can someone please help me with this? I just cannot understand this. It does not make sense to me at all. I've asked classmates,

Elan Coil [88]

#1: The central angle of each slice would be found by dividing the total central angle of a circle (360°) by the number of slices (8), so:

$\frac{360}{8} =45 $^{\circ}$$

Each slice would have a central angle of 45°.

#2: This question is vague, since the arc can be measured in degrees or inches. The degree measure of the intercepted arc would be 90°. The length in inches of the intercepted arc could be found using the formula:

$\frac{\text{central angle measure}}{360} *2\pi r$

So, in your case, it'd be:

$\frac{90}{360} *2\pi(6)= \frac{90}{360} *12\pi=3\pi \text{ inches}$

#3: The circumference of any circle is found by the equation $2\pi r$ wher r is the radius. So in your case it's $2\pi (6)$ which is $12\pi$ .

As for the equation of the circle when graphed, it's:

$(x-2)^2+(y+3)^2=36$

7 0

4 years ago

2. Frozen yoghurt with a temperature of 0°C is removed from a freezer and placed in a room which is at a temperature of 22°C. Th

Ede4ka [16]

Answer:

A. ΔT/Δt=(3/55min)*(Tr-To); B. 12°C

Step-by-step explanation:

In order to find the answer let's detect the information.

Object temperature = To = 0°C

Room temperature = Tr = 22°C

Rate of warming = R

Based on the data we can establish that:

The change (Δ) in temperature of the object through time is proportional to the difference between object and room temperatures, so:

ΔT/Δt=R*(To-Tr)

Let's find the rate (R) first:

Because the object change its temperature from 0°C to 6°C in 5 minutes we have:

ΔT/Δt=R*(Tr-To)

(6-0°C)/5min=R*(22°C-0°C)

6/(5*22min)=R

3/55min=R

So the general equation is:

ΔT/Δt=(3/55min)*(Tr-To)

Now, let's find the temperature after 10 minutes.

ΔT/Δt=R*(Tr-To)

ΔT/10min=(3/55min)*(22°C-0°C)

ΔT=(3/55min)*(22°C)*10min

ΔT=12°C

In conclusion, after 10 minutes the yoghurt has a temperature of 12°C.

3 0

4 years ago