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3 years ago

Please help need this answer

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair.

(2, 0), (-3, 3), (9, 1), (-3, 5) NOT

(9, 1), (-3, 4), (2, 1), (9, 2) NOT

(2, 4), (-3, 2), (9, 1), (-7, 2) YES

(2, 4), (-3, 6), (2, 3), (-7, 2) NOT

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16.56 divided by 0.08=

m_a_m_a [10]

Answer:207

Step-by-step explanation:

6 0

3 years ago

Hi!

Elina [12.6K]

Answer:

404.09x cm³ (to 5 s.f.),

where x is the unknown height of the shape.

Step-by-step explanation:

Volume of the shape

= base area × height

= (large semicircle- small semicircle) × thickness of shape

Area of circle= $\pi {r}^{2}$

Area of semicircle= $\frac{1}{2} (\pi)( {r}^{2} )$

Diameter of small circle= 14

Radius= diameter ÷2

radius= 14 ÷2

radius = 7 cm

Area of small semicircle

$= \frac{1}{2} (\pi)( {7}^{2} ) \\ = \frac{49}{2} \pi$

Radius of large semicircle

= 35 ÷2

= 17.5 cm

Area of large semicircle

$= \frac{1}{2} (\pi)( {17.5}^{2} ) \\ = \frac{1225}{8} \pi$

Base area of shape

$= \frac{1225}{8}\pi - \frac{49}{2} \pi \\ = \frac{1029}{8} \pi$

Since the height if the shape is not given, I'm afraid I cant help you find the volume.

Let the height of the shape be x cm.

Volume of shape= $\frac{1029x}{8} \pi \: cm^{3}$

3 0

3 years ago

Two different cars each depreciate to 60% of their respective original values. The first car depreciates at an annual rate of 10

Gnesinka [82]

Answer: The approximate difference in the ages of the two cars is 2 years

Step-by-step explanation:

Now, since the first car (Car A) depreciates annually at a rate of 10% and is currently worth 60% or 40% less than its original value, we can calculate the number of years it took the car to depreciate to just 60% of its original worth:

= Current value/rate of depreciation

= 60%/10%

= 6 years

So, if the car depreciates by 10% every year from the year it was worth 100% of it's original value, it will take 6 years for the car to now worth just 60%

In the same manner, if the second car (Car B) is depreciating at an annual rate of 15% and is likewise currently worth just 60% or 40% less than its original value, we can calculate the number of years it will take the car to depreciate to 60% of its original worth.

= Current worth/ rate of depreciation

= 60%/15%

= 4 years

So, if the car (Car B) is depreciating at a rate of 15% per annum, the car will depreciate to just 60% in a period of 4 years.

Therefore, if the 2 cars are currently worth just 60% of their original values (recall that it took the first car 6 years and the second car 4 years to depreciate to their current values), the approximate difference in the ages of the two cars assuming they both started depreciating immediately after the years of their respective manufacture is:

= 6 years - 4 years

= 2 years

8 0

4 years ago

17 a) Find the nth term of the arithmetic sequence 1,11,21,31,41....<br>b) Find the 100th term.

Citrus2011 [14]

Step-by-step explanation:

use the formula a+(n-1)d

a=(first value in sequence)=1

n=100(the term you are finding)

d=(difference)(it is increasing by 10

substitute the value in the formula

1+(100-1)10

100th term=991

4 0

3 years ago

Alex’s printer can print 8 photos in 12 minutes.

nataly862011 [7]

Answer:

B and D

Step-by-step explanation:

7 0

3 years ago