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
andrew-mc [135]
2 years ago
14

Question 2 Determine if (x-3) is a factor to the polynomial P(x) = 2x³ +5x²-28x - 15. (3 marks)​

Mathematics
1 answer:
tangare [24]2 years ago
3 0

Answer:

(x - 3) is a factor of P(x)

Step-by-step explanation:

if (x - 3) is a factor of P(x) then P(3) = 0

P(3) = 2(3)³ + 5(3)² - 28(3) - 15

      = 2(27) + 5(9) - 84 - 15

      = 54 + 45 - 99

      = 99 - 99

      = 0

since P(3) = 0 then (x - 3) is a factor of P(x)

You might be interested in
The equal symbol with the wave meat "is Congeruent to"
Strike441 [17]

Answer:

angle 5 is 61°

angle 7 is 61°

Step-by-step explanation:

1. angle 7 + angle 8 = 90° Because they are complementary angles

2. Because of point 1 above, angle 5 + angle 6 = 90°

3. since given angle 6 = 29°

so, angle 5 = 90° - 29° = 61°

4. since given angle 5 = angle 8

so, angle 8 = 61°

5. from point 1 above,

angle 7 + 61° = 90°

so angle 7 = 29°

6 0
2 years ago
Suppose you invest 1,600 at an annual interest rate of 7.9% compounded continuously. How much will you have in the account after
Elina [12.6K]

\bf ~~~~~~ \textit{Continuously Compounding Interest Earned Amount} \\\\ A=Pe^{rt}\qquad  \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\to& \$1600\\ r=rate\to 7.9\%\to \frac{7.9}{100}\to &0.079\\ t=years\to &10 \end{cases} \\\\\\ A=1600e^{0.079\cdot 10}\implies A=1600e^{0.79}\implies A\approx 3525.434

6 0
2 years ago
(5/6)^4x=(36/25)^9-x, please help solve for x, and the 9-x is all superscript
stiks02 [169]
\frac{36}{25}=\frac{6^2}{5^2}=\left(\frac{6}{5}\right)^2=\left(\frac{5}{6}\right)^{-2}\\\\therefore:\\\\\left(\frac{5}{6}\right)^{4x}=\left[\left(\frac{5}{6}\right)^{-2}\right]^{9-x}\\\\\left(\frac{5}{6}\right)^{4x}=\left(\frac{5}{6}\right)^{-2(9-x)}\iff4x=-2(9-x)\\\\4x=-2\cdot9-2\cdot(-x)\\\\4x=-18+2x\ \ \ \ \ |subtract\ 2x\ from\ both\ sides\\\\2x=-18\ \ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{x=-9}


Use:\\a^{-n}=\left(\frac{1}{a}\right)^n\\\\\left(a^n\right)^m=a^{n\cdot m}\\\\\left(\frac{a}{b} \right)^n=\frac{a^n}{b^n}
6 0
2 years ago
Read 2 more answers
Please I need help ASAP!!!
lesantik [10]

Answer:

First answer.

Step-by-step explanation:

This is called the Arc length, here is the formula:

Arc length = (angle/360)*(2Pi*radius)

So,

(45/360)*(2*3.14*4)

= 3.14

SO Pi !!!!!

4 0
3 years ago
5 lbs equals how many ounces
fredd [130]
5 pounds = 80 ounces
7 0
3 years ago
Other questions:
  • In a study conducted in the United Kingdom about sleeping positions, 1000 adults in the UK were asked their starting position wh
    8·1 answer
  • In a small church in rural pennsylvania, the first pew can fit only 6 people. the second pew can fit 8, and the third can fit 10
    15·2 answers
  • URGENT NEEDS ANSWERED RIGHT AWAY!
    6·2 answers
  • The manager of a bakery states in a report that the average value of customer transactions is greater than $13.65. A random samp
    7·1 answer
  • Solve for x x/6 = 12
    11·1 answer
  • Kevin won to gold fish a the county fair he put them in a bowl that hold 2 liters of water the next day he put them in a bowl th
    11·1 answer
  • The product of two rational numbers is 6. If one of the number is 14/3, find the other number.
    14·1 answer
  • 2. 20% of what number is 15​
    14·1 answer
  • 1 5 ? whats the missing number?<br> _ + _= _<br> 9 6 18
    9·1 answer
  • Why is the rate of change of a slope secant and not tangent
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!