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mario62 [17]
2 years ago
11

Amanda exercised for 10 minutes every day in the first week, 20 minutes in the second week, 30 minutes in the third week, and 40

minutes in the fourth week.
Billy exercised for 5 minutes every day in the first week, 10 minutes in the second week, 20 minutes in the third week, and 40 minutes in the fourth week.

Which statement best describes the methods used by Amanda and Billy to increase the time they spent exercising? (1 point)

Group of answer choices

Amanda's method is linear because the number of minutes increased by an equal number every week.

Billy's method is linear because the number of minutes increased by an equal factor every week.

Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal factor every week.

Both Billy's and Amanda's methods are exponential because the number of minutes increased by an equal number every week.
Mathematics
1 answer:
Dominik [7]2 years ago
7 0

Amanda's method is linear because the number of minutes increased by an equal number every week.

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4 0
3 years ago
Find BC to the nearest tenth. Does anyone know how to do this? I rlly need it now pls.
makvit [3.9K]

9514 1404 393

Answer:

  41.4

Step-by-step explanation:

The Law of Cosines tells you ...

  a² = b² +c² -2bc·cos(A)

where sides a, b, c are opposite angles A, B, C, respectively. Filling in the given numbers, you have ...

  a² = 30² +26² -2·30·26·cos(95°)

  a² ≈ 1711.96

  a ≈ √1711.96 ≈ 41.38

The length of BC is about 41.4 units.

5 0
2 years ago
What is the value of this expression (12-x)+ y/2 when x=4 and y=8 A. 4 B. 6 C. 8 D. 10
Ludmilka [50]

Answer:

12

Step-by-step explanation:

(12-x)+ \frac{y}{2}

(12-4)+ \frac{8}{2}

(12-4)+ 4

8+4

12

Hope this helps!

5 0
2 years ago
Read 2 more answers
sketch nine points connect the points to form a closed plane figure what kind of polygon did you draw
Zina [86]
Octagon is your answer, i think
4 0
3 years ago
Select the correct answer from each drop-down menu.
il63 [147K]

Answer:

Find below correct question:

When she was 20, liz started saving $6,000 a year for retirement. her goal is to reach & 100,00 in savings by the time she’s 30. her account earns 8% interest per year, compounded annually. liz (will/ won’t) have saved $100,000 by age 30. she’ll (exceed/ fall short of) her goal by about ($10,081/ $13,081/ $14,011)

liz won’t have saved $100,000 by age 30. she’ll fall short of her goal by about  $13,081

Step-by-step explanation:

First and foremost we need to know the worth of Liz's retirement savings when she is 30 using excel fv formula as follows:

=fv(rate,nper,-pmt,pv)

rate is the interest earned per year which is 8%

nper is the duration of savings which is 10 years

pmt is the amount of yearly savings which is $6,000

pv is the present worth of total savings which is not known

=fv(8%,10,-6000,0)=$86,919.37  

Hence,Liz would be not be able to reach $100,000 at age 30.

Shortfall=$100,000-$86,919.37  =$ 13,080.63  

5 0
3 years ago
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