All categories

2 years ago

How long do Ti-30Xa calculator last(battery wise)?

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

7 0

Answer:

It depends on the different ones. Others last longer than others.

You might be interested in

Currently, the number of people entering a shopping mall is 109. It is estimated that the number of people entering the shopping

seropon [69]

Answer:

96 people.

Step-by-step explanation:

Exponential equation for a decreasing amount:

The exponential equation for a decreasing amount is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial rate and r is the decay rate, as a decimal.

Currently, the number of people entering a shopping mall is 109.

This means that $A(0) = 109$

It is estimated that the number of people entering the shopping mall will decrease by 3% each hour.

This means that $r = 0.03$

$A(t) = A(0)(1-r)^t$

$A(t) = 109(1-0.03)^t$

$A(t) = 109(0.97)^t$

Find the total number of people entering the shopping mall at the end of 4 hours.

This is A(4). So

$A(4) = 109(0.97)^4 = 96.49$

Rounding to the nearest whole number, 96 people.

6 0

3 years ago

PLEASE HELP WITH GEOMETRY HOMEWORK!! WILL GIVE BRAINLIEST ANSWER TO THE PERSON WHO CAN GIVE ME A ANSWER WILL ALL THE WORK SHOWN

Temka [501]

Answer:

Shaded area = 6^2 * ( pi/3 - sqrt(3)/2 )

= 6.52 square units (to 2 places of decimals)

Step-by-step explanation:

see solution by same author given in

brainly.com/question/17023327?answeringSource=feedPersonal%2FhomePage%2F2

(question 17023327)

Please refer to the diagram for additional letters and measures.

Let

r=radius (OA and PA) of each circle

Area of sector PAOB

= (60+60)/360 * pi * r^2

=pi*(r^2)/3

Area of triangle PAB

= 2* (r cos(60) * r sin(60) /2)

= 2* ((r/2) * r (sqrt(3)/2) /2)

= sqrt(3) * r^2 / 4

= r^2 * sqrt(3)/4

Area of segment AOB

= area of segment PAOB - area of triangle PAB

= r^2 * ( pi/3 - sqrt(3)/4 )

By symmetry, area of shaded area

= area of segment AOB - area of triangle AOB

= area of segment AOB - area of triangle PAB

= r^2 * ( pi/3 - sqrt(3)/4 ) - r^2 * ( sqrt(3)/4)

= r^2 * ( pi/3 - 2*sqrt(3)/4 )

= r^2 * ( pi/3 - sqrt(3)/2 )

Since r = b, we substitute

Shaded area

= b^2 * ( pi/3 - sqrt(3)/2 )

Substitute b=6

area

= 6^2 * ( pi/3 - sqrt(3)/2 )

= 6.522197 square units

4 0

3 years ago

Please help!

zubka84 [21]

Answer:

Option D

Step-by-step explanation:

We convert 5 2/3 into an improper one:

17/3

There are 5 people in his family

17/3 * 1/5 = 17/15

So option D

8 0

3 years ago

Select the correct answer.

stepladder [879]

Answer:

y = 3x - 3, your answer is D.

Step-by-step explanation:

8 0

4 years ago

Expand and combine like terms. <br> (x+3)(x+4)

ivanzaharov [21]

Answer:

x^2 +7x+12

Step-by-step explanation:

(x+3)(x+4)

FOIL

first x*x= x^2

outer: 4x

inner:3x

Last 3*4=12

Add together

x^2+3x+4x+12

Combine like terms

x^2 +7x+12

8 0

3 years ago