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Ivahew [28]
3 years ago
5

Please help I don't understand this thank you

Mathematics
1 answer:
VikaD [51]3 years ago
6 0
Angle QPS is an inscribed angle.  Arc QS is the intercepted arc of that angle.  The rule is that the intercepted arc is twice its angle measure.  P measures 20 degrees, so arc QS measures 40 degrees.  It just so happens that angle QTS is ALSO an inscribed angle intercepting arc QS.  So angle QTS measures the same as angle P, 20 degrees.  That's a.  For b., we already stated the rule and figured out that minor arc QS is 40 degrees.  For c., major arc QTS is 360 (the measure around the outside of a circle...EVERY circle in the world) minus the minor arc of 40.  So major arc QTS measures 360 - 40 which is 320 degrees.  There you go!
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Your parents have decided to buy a new Toyota 4Runner for 25,635. According to the dealer, the car will depreciate in value appr
chubhunter [2.5K]
Let the value of the car be represented by V and the amount of years by y. 
This gives us the following formula:
V = 25,635 - 3000y
(This is because we start with a value of $25,635 and the value decreases by $3,000 every year 'y')

Now, we want to know when the car is worth $3,135, so we know V = 3,135
Now we can make up our equation:
25,365 - 3,000y = 3,135

Collecting terms gives us:
-3,000y = -22,500

Finally we divide by -3,000 to find 'y'
y = -22,500 / -3,000 = 7.5

Hence, the car will be worth $3,135 after 7.5 years.
8 0
3 years ago
Read 2 more answers
Evaluat the expression 202-[2(3+7)+6]=<br>​
valina [46]

You need to start calculating from the innermost bracket and if there are no signs to do any operation then you need to multiply

6 0
3 years ago
What's the difference between partial variation and direct variation​
shepuryov [24]

Answer:

<u>Direct Variation is a relation that is of the form y = mx.</u>

and

<u>Partial Variation is a relation that is of the form y=mx+b</u>

Explanation:

This is a simple way to see the difference between them.

<em>Hope This help you!</em>

8 0
3 years ago
A cone has a radius of 5 ft and a height of 15 ft. It is empty and is being filled with water at a constant rate of 15 15 ft 3 f
kvasek [131]

Answer:

\frac{dr}{dt}=0.11062ft/sec

Step-by-step explanation:

From the question we are told that:

Radius r=5ft

Height H=15ft

Rate R=15ft/3sec =5ft/s

Surface Radius R_{surf}=2.2ft

Generally the equation for Volume is mathematically given by

 V=\frac{1}{3}\pi*r^2h

Since radius to height ratio gives

 \frac{r}{h}=\frac{5}{15}

 \frac{r}{h}=\frac{1}{3}

 h=3r

Therefore

 V=\frac{1}{3}\pi*r^2(3r)

 V=\pi r^3

Generally the equation for Change of Volume is mathematically given by

 \frac{dv}{dt}=\pi \frac{d}{dt}(r^3)

 \frac{dv}{dt}=\pi 3*r^2 \frac{dr}{dt}

 \frac{dv}{dt}=\pi 3*(2.2)^2 \frac{dr}{dt}

 \frac{dr}{dt}=\frac{5}{45.62}

 \frac{dr}{dt}=0.11062ft/sec

3 0
3 years ago
May I know this answer?
alexira [117]

Answer:

no u may nit know this answet

4 0
3 years ago
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