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rodikova [14]
3 years ago
15

30 POINTS

Mathematics
2 answers:
MAXImum [283]3 years ago
7 0

Answer:

12 minutes 40 seconds

Step-by-step explanation:

One keychain, 1 minutes 35 second = 1*60 + 35 = 95 seconds

8 keychains, 95 * 8 = 760 seconds = 760/60 = 12.66667 minutes

= 12 minutes 0.66667*60 seconds

= 12 minutes 40 seconds

butalik [34]3 years ago
5 0

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The figure below shows two half-circles at the ends of a rectangle with the dimension shown.
timurjin [86]

Answer:

D. 154

Step-by-step explanation:

The area of the rectangle is 15*5= 75 inches

The area of the 2 semicircles combined, which make a circle, are:

π*r², where r is 5

r²=25

π*25=78.53981633

75 + 78.53981633 is about 154

5 0
2 years ago
Answer both questions Please!!!!!
VladimirAG [237]

Answer:

first one the rate is 4

the starting value is 3

and the equation is

y=3x+4

Step-by-step explanation:

6 0
3 years ago
what are the missing numbers?
crimeas [40]

Given:

The table of values of an exponential function.

To find:

The missing values in the exponential function.

Solution:

The general exponential function is defined as:

y=a(b)^x              ...(i)

Where, a is the initial value and b is the growth factor.

First point from the given table is (1,10). It means, the equation (i) must be true for (1,10).

10=a(b)^1             ...(ii)

Second point from the given table is (2,20). It means, the equation (i) must be true for (2,20).

20=a(b)^2             ...(iii)

Dividing (iii) by (ii), we get

\dfrac{20}{10}=\dfrac{a(b)^2}{ab}

2=b

Putting b=2 in (ii), we get

10=a(2)^1

\dfrac{10}{2}=a

5=a

Putting a=5,b=2 in (i), we get

y=5(2)^x

The required exponential function for the given table of values is y=5(2)^x. So, the missing values are 2 and x, where 2 is in the base and x is in the power.

8 0
3 years ago
1. Why does the advisor not believe the woman knocking at the town<br> gate is a princess?
Tresset [83]

Answer:

\pink{\rule{40pt}{555555pt}}

Step-by-step explanation:

\pink{\rule{40pt}{555555pt}}

8 0
2 years ago
Write a Doubles fact you can use to find the sum. Write the sum 2+3
In-s [12.5K]
3+3 is the answer to this
6 0
3 years ago
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