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
Genrish500 [490]
3 years ago
14

Please help :(,,,,,,???,,,,,,

Mathematics
1 answer:
nadya68 [22]3 years ago
5 0

Step-by-step explanation:

The first one (f×g)(x) is asking you what is f of x times g of x. This means you multiply the function. You can multiply by the first term (5x) then the second (3) and combine like terms.

{15x}^{2} (5x) =  {75x}^{3}   \\ 19x(5x)  = 95 {x}^{2} \\  6(5x)  = 30x

{15x}^{2} (3) = 45 {x}^{2}  \\ 19x(3) = 57x \\ 6(3) = 18

Combine like terms

{75x}^{3}  +  {95x}^{2}  +  {45x}^{2}  + 30x + 57x \\  + 18 = \\   {75x}^{3}  +  {140x}^{2}  + 87x + 18

The second one asks you to divide.

Factor out f(x):

{15x}^{2}  + 19x + 6

From dividing f(x) /g(x)

\frac{ {15x}^{2} + 19x + 6 }{5x + 3}

To

\frac{(5x + 3)(3x + 2)}{5x + 3}

Cancel like terms since (5x+3) is on top and bottom of fraction.

You get 3x+2

You might be interested in
An automobile manufacturer has developed a new compact automobile. A random sample of 64 of the new automobiles showed that the
Firdavs [7]

Answer:

<em>The 95% confidence interval for the population mean mileage is </em>

(27.917, 29.593)

The 98% confidence interval for the population mean mileage

(27.737, 29.762)

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the random sample size 'n' = 64</em>

<em>Given that the mean of sample x⁻ = 28.75miles</em>

<em>Given that the standard deviation of the sample (S) = 3.4 miles</em>

<em>Degrees of freedom = n-1 = 64-1 =63</em>

<em>t₀.₀₅ = 1.9983</em>

<u>Step(ii):-</u>

<em>95% confidence interval for the population mean mileage is determined by</em>

<em />(x^{-} - t_{0.05} \frac{S}{\sqrt{n} } , x^{-} + t_{0.05} \frac{S}{\sqrt{n} })<em />

(28.75-1.99\frac{3.4}{\sqrt{64} },28.75 + 1.99 \frac{3.4}{\sqrt{64} } )

(28.75 - 0.845 , 28.75 + 0.845)

(27.917 , 29.593)

<u><em>Step(iii</em></u>):-

<em>98% confidence interval for the population mean mileage is determined by</em>

<em />(x^{-} - t_{0.02} \frac{S}{\sqrt{n} } , x^{-} + t_{0.02} \frac{S}{\sqrt{n} })<em />

(28.75-2.3824\frac{3.4}{\sqrt{64} },28.75 + 2.3824 \frac{3.4}{\sqrt{64} } )

(28.75 - 1.01252 , 28.75 + 1.01252)

(27.737 , 29.762)

<u><em>Final answer:-</em></u>

<em>98% confidence interval for the population mean mileage is </em>

(27.737 , 29.762)

<u><em /></u>

<em />

7 0
2 years ago
Find the price of a $50 item after a 20% discount
il63 [147K]
20% = 0.20
50 * 0.20 = $10 discount
50 - 10 = 40

The price after 20% discount is $40
5 0
3 years ago
Read 2 more answers
Juana scored higher than 85.31% of the students. What was her score?
kirill [66]

Answer:

= 14.7 percent

Step-by-step explanation:

= 100 - 85.3

= 14.7 percent

8 0
2 years ago
The line goes through the ordered pair (10, 6) It has a y-intercept of -2.
VLD [36.1K]

Answer: the x-intercept would be (2,-2)

Step-by-step explanation:

6 0
3 years ago
Emily had $56 in her account. She deposited a $265 check, and bought three equally priced backpacks for her children. The next d
Slav-nsk [51]
56+265= 321
321-243= 78
78/3= 26
Each backpack cost $26
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which expressions are equivalent to the given expression?
    5·1 answer
  • Write an equation for the following:
    7·2 answers
  • a rectangular deck has a area of 320 ft squared. the length of the desk is 4 feet longer than the width. find the dimensions of
    12·1 answer
  • Write the equation of the line that passes through (–1, 5) and has a slope of 3 in point-slope form.
    12·1 answer
  • Markus decides to return 4 shirts costing $19 each to a clothing store. While there, he decides to purchase 2 pairs of shoes at
    14·2 answers
  • Charlie boils seven eggs for his breakfast. He puts the eggs into the pan one at a time, but waits one minute after putting one
    7·1 answer
  • I needddddd helppppppppppppppppp
    7·2 answers
  • Find the measures of the acute angle of the right triangle shown
    10·1 answer
  • I thought of a 2 digit number. The digits of my number are different. The unit digit of my number is the tens digit raised their
    8·1 answer
  • Find the slope of the line.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!