1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
deff fn [24]
3 years ago
6

The number A of tablet computers sold (in millions) can be modeled by the function A=4.5t2+43.5t+17 , where t represents the num

ber of years after 2010. In what year did the tablet computer sales reach 65 million?
Mathematics
1 answer:
Rina8888 [55]3 years ago
6 0
The problem indicates that A represents the number of tablet computers sold in millions. So, if 65 million were sold, we must substitute A = 65 to the equation. Then, we find for t.

65 = 4.5t² +43.5t + 17
Solving for t using a calculator,
t = 1 and -10.67

Let's take the positive root. So, t=1.
That means the year would be 1 year after 2010. <em>Therefore, the answer is 2011.</em>
You might be interested in
I will give brainiest to whoever answers correctly !!
IgorC [24]

Answer:

Interest rate, R = 244%

Step-by-step explanation:

Given the following data;

Principal = $270

Simple interest = future amount - principal = 309.60 - 270 = $39.60

Time = 22/360 = 0.06 years

To find the interest rate?

Mathematically, simple interest is calculated using this formula;

S.I = \frac {PRT}{100}

Where;

  • S.I is simple interest.
  • P is the principal.
  • R is the interest rate.
  • T is the time.

Substituting into the equation, we have;

39.60 = \frac {270*R*0.06}{100}

Cross-multiplying, we have;

39.6 * 100 = 16.2*R

3960 = 16.2R

R = \frac {3960}{16.2}

<em>Interest rate, R = 244.44 ≈ 244%</em>

<em>Therefore, the pawnbroker charged Elisa a simple interest rate of 244%.</em>

5 0
3 years ago
HELP! WILL GIVE BRAINLIEST! DO NOT TAKE ANSWERS OFF ONLINE, THEY ARE WRONG!!!! The following is an incomplete paragraph proving
ohaa [14]

Answer:

The correct option is B.

Step-by-step explanation:

Given information: AB\parallel DCAB∥DC and BC\parallel ADBC∥AD .

Draw a diagonal AC.

In triangle BCA and DAC,

AC\cong ACAC≅AC (Reflexive Property of Equality)

\angle BAC\cong \angle DCA∠BAC≅∠DCA ( Alternate Interior Angles Theorem)

\angle BCA\cong \angle DAC∠BCA≅∠DAC ( Alternate Interior Angles Theorem)

The ASA (Angle-Side-Angle) postulate states that two triangles are congruent if two corresponding angles and the included side of are congruent.

By ASA postulate,

\triangle BCA\cong \triangle DAC△BCA≅△DAC

Therefore option B is correct

4 0
3 years ago
Find the missing measure​
Vilka [71]
25 degrees because 90-65=25
5 0
3 years ago
You are using 0.05 gallons per mile of a SUV gas tank that holds 16 gallons. y = - 0.05x + 16. (Or, if you wish you may use
asambeis [7]
Here, we just use the following x values and put them into the equation.

y = - 0.05x + 16
y = -0.5(0) + 16
y = 16

y = - 0.05x + 16
y = -0.5(160) + 16
y = -80 + 16
y = -64

y = - 0.05x + 16
y = -0.5(320) + 16
y = - 160 + 16
y = -144

Now, to set up the table, you could list the x values and the y values. 

x values :- 0,160, 320
y values:- 16, -64, -144


6 0
3 years ago
Read 2 more answers
What is the value of y that satisfies the
Allisa [31]
Y=4
3y/4=12/3
y=4 3/3=1
12/3=4 so y=4
3 0
3 years ago
Other questions:
  • Chapter 9.1 the bar graph
    11·1 answer
  • The probability that an egg on a production line is cracked is 0.01. Two eggs are selected at random
    15·1 answer
  • How many times does 81,000 goes into 8,000
    14·1 answer
  • The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units. What is the value of x?
    14·1 answer
  • Sociologists want to determine the probability of exactly 4 out of the next 7 individuals they survey earning over
    6·1 answer
  • -(-10x-8)=-(4x+10)<br> A)-4<br> B)-2<br> C)-3<br> D)3<br> show work
    5·1 answer
  • Can someone plz plz plz help me with this( also the word that is cut off says Then​
    13·1 answer
  • Find the range of the function y=7x-1 when the domain is {-1, 0, 1}
    12·1 answer
  • $450 at 5.2% interest for <br> 3 years<br> inerest number:<br><br> new balance:
    12·1 answer
  • Factor the polynomial by its greatest common monomial factor<br><br> 9b^8+24b^3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!