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olga_2 [115]
3 years ago
12

A student drops a penny from the top of a tower and decides that she will establish a coordinate system in which the direction o

f the penny's motion is positive. what is the sign of the acceleration of the penny?
Mathematics
2 answers:
Ipatiy [6.2K]3 years ago
7 0

Answer:

It's positive

Step-by-step explanation:

Elenna [48]3 years ago
4 0

Answer:

The sign of acceleration is positive.

Step-by-step explanation:

Consider the provided information.

It is given that A student drops a penny from the top of a tower and decides that she will establish a coordinate system in which the direction of the penny's motion is positive.

Here the direction of the velocity is positive,  and the velocity is increasing.

Acceleration is defined as the rate at which an object changes its velocity.

Since velocity is positive therefore the acceleration is also positive.

Hence, the sign of acceleration is positive.

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Which value of b in an exponential function will result in the percent rate of change given? 23% decrease b = 8% increase b = 15
prisoha [69]

Answer:

Given an exponential function of the form

y = a*(b)^x

The values of b that will result in the desired percentage values are:

Case 1

b = 23% decrease

1 - 0.23 = 0.77

y = a*(0.77)^x

Case 2

b = 8% increase

1 + 0.08 = 1.08

y = a*(1.08)^x

Case 3

b = 15% decrease

1 - 0.15= 0.85

y = a*(0.85)^x

Case 4

b = 120% increase

1 + 1.2 = 2.2

y = a*(2.2)^x

See attached picture for examples

6 0
3 years ago
Tickets at an amusement park are $25 for children and $45 for adults, the Jones family has 4200 cash
joja [24]

Step-by-step explanation:

$4200 - $50

= $4150

4150 divided by 45 = 92.222.......

92.222 is approximately 93

So you can purchase 92/93 tickets in total

Since tickets are physical things, I dont think you can approximate it but that's my answer

3 0
3 years ago
Please simplify the equation
ss7ja [257]
Simplify
= 6/(gf^4)

hope that helps
6 0
4 years ago
What is -5n+7<57 and 6n+2<8
pishuonlain [190]

Answer:

if -5n+7<57, then n>-10.

if 6n+2<8, then n<1.

Step-by-step explanation:

-5n+7<57

1. subtract 7 from both sides:

-5n+7 -7< 57 -7

-5n<50

2. divide both sides by -5 (remember to flip the sign whenever you divide by a negative number):

-5n ÷-5<50 ÷-5

n>-10

6n+2<8

1. subtract 2 from both sides:

6n+2 -2<8 -2

6n<6

2. divide both sides by 6:

6n ÷6<6 ÷6

n<1

4 0
4 years ago
The diagram shows a pentagon. It has one line of symmetry.
Nina [5.8K]

Answer:

A) 10x + 8 = 21

B) x = 1.3

Step-by-step explanation:

2(2x + 3) + 2(x + 1) + 4x = 21

4x + 6 + 2x + 2 + 4x = 21

10x + 8 = 21

10x = 13

x = 1.3 cm

7 0
3 years ago
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