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
Stella [2.4K]
3 years ago
14

(t-7)^2+18=9 solve for t

Mathematics
2 answers:
mafiozo [28]3 years ago
7 0
 the answer is T equals 40
ANEK [815]3 years ago
3 0
T-7^2 +18=9
t-49+18=9
t-31=9
t-31+31=9+31
Answer: t=40
You might be interested in
Warren has a container which holds 22 books of the same shape and size. The exact breakdown of his books is shown below:
ohaa [14]

Given:

Total number of book = 22

Number of white books = 6

Number of Purple books = 9

Number of green books = 7

To find:

The probability that Warren takes out a green book in both draws (with replacement).

Solution:

We know that,

\text{Probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}

P(\text{White})=\dfrac{6}{22}

P(\text{Purple})=\dfrac{9}{22}

P(\text{green})=\dfrac{7}{22}

After replacement, the probability of event remains the same and the independent.

The probability that Warren takes out a green book in both draws is:

P=P(\text{green})\times P(\text{green})

P=\dfrac{7}{22}\times \dfrac{7}{22}

P=\dfrac{49}{484}

Therefore, the correct option is (a).

7 0
3 years ago
An advertising company designs a campaign to introduce a new product to a metropolitan area of population 3 Million people. Let
Advocard [28]

Answer:

P(t)=3,000,000-3,000,000e^{0.0138t}

Step-by-step explanation:

Since P(t) increases at a rate proportional to the number of people still unaware of the product, we have

P'(t)=K(3,000,000-P(t))

Since no one was aware of the product at the beginning of the campaign and 50% of the people were aware of the product after 50 days of advertising

<em>P(0) = 0 and P(50) = 1,500,000 </em>

We have and ordinary differential equation of first order that we can write

P'(t)+KP(t)= 3,000,000K

The <em>integrating factor </em>is

e^{Kt}

Multiplying both sides of the equation by the integrating factor

e^{Kt}P'(t)+e^{Kt}KP(t)= e^{Kt}3,000,000*K

Hence

(e^{Kt}P(t))'=3,000,000Ke^{Kt}

Integrating both sides

e^{Kt}P(t)=3,000,000K \int e^{Kt}dt +C

e^{Kt}P(t)=3,000,000K(\frac{e^{Kt}}{K})+C

P(t)=3,000,000+Ce^{-Kt}

But P(0) = 0, so C = -3,000,000

and P(50) = 1,500,000

so

e^{-50K}=\frac{1}{2}\Rightarrow K=-\frac{log(0.5)}{50}=0.0138

And the equation that models the number of people (in millions) who become aware of the product by time t is

P(t)=3,000,000-3,000,000e^{0.0138t}

5 0
4 years ago
What is the solution of the equation (4x + 3)^2 = 18?
iren [92.7K]

Answer:

x=6

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Desarrolla el siguiente cuadrado de binomio (2x³ - 6x)²
gulaghasi [49]

Answer:

4x^{6} - 24x^{4} + 36x^{2}

Step-by-step explanation:

8 0
3 years ago
Which of the following xpressions is equivalent to -1/4 - 5/3? -1/4 + (-5/3) or - 1/4 + 5/3?
Nadusha1986 [10]
-1/4 + (-5/3)

When there is no number between a grouping symbol and a + or - sign, by default you can multiply the contents in the group by 1 to get rid of the grouping symbols.
5 0
3 years ago
Other questions:
  • 50 points!! The value of the expression 7+3*2+(12-8)/ 2x4 is ___________
    8·2 answers
  • What is the value of -32+(-47)(2)?
    14·2 answers
  • In parallelogram PQSR, what is PQ?
    14·1 answer
  • Paul predicts that n stalks of corn planted together will produce (2n2–2n)(2n2–2n) ears of corn. If Paul plants three corn plant
    5·1 answer
  • PLEASEEE HELPPPPPPP 15 POINTS
    7·1 answer
  • If there are 27 students in one class,<br> how many are there in 5 classes?
    8·1 answer
  • I’ll gift u a milf if you answer
    8·1 answer
  • Question
    11·2 answers
  • PLZ HELP! <br><br> Add.<br><br> −16 + (−29) + 49 = <br><br><br> 4<br><br> 62<br><br> 94
    8·2 answers
  • A crab moves at a speed of 0.14 kilometers per hour. How far can it travel for 0.25 hours?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!