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
tester [92]
3 years ago
9

The bases of an isosceles trapezoid are represented by 4x and 2x.. The height of the trapezoid is represented by (x − 6). Which

polynomial expression BEST represents the area of the trapezoid?
A) 3x2 − 18x
B) 3x2 + 18x
C) 3x − 18
D) 6x2 + 36x
Mathematics
2 answers:
Lerok [7]3 years ago
6 0

Answer:

Step-by-step explanation:

3x2 + 8x + 4

A =

1

2

(b1 + b2)(height)

A =

1

2

(3x + 3x + 4)(x + 2)

A =

1

2

(6x + 4)(x + 2)

A =

1

2

(6x2 + 16x + 8)

A = 3x2 + 8x + 4

The answer is A

Igoryamba3 years ago
5 0
The area of a trapezoid is calculated by the equation,
                          A = 0.5(b₁ + b₂)h
where b₁ and b₂ are the bases and h is the height. When we substitute the given expression for the dimensions in the given,
                          A = 0.5(4x + 2x)(x - 6)
                          A = 0.5(6x)(x - 6) = 3x² - 18
Thus, the answer is letter A. 
You might be interested in
Which step would solve the equation?
Kazeer [188]
Bottom left. Distributive property
 
6 0
3 years ago
Read 2 more answers
Margaret makes bracelets and sells them to tourists. the function s(t) approximates how many bracelets margaret makes per hour.
Fantom [35]

The units for the composite function s(w(h)) is <u>bracelets over a week</u> when the function s(t) approximates how many bangles Margaret makes per hour and the function w(h) represents how many hours per week Margaret spends making the bracelets.

To define the unit of the composite function s(w(h)), we first need to find the units of the functions s(t) and w(h).

The function s(t)  represents the number of bangles per hour, so its unit will be bangles over an hour.

The function w(h) represents the hours per week spent on making the bracelets, so its unit will be hours over a week.

Now, we can define the unit of the composite function s(w(h)).

To find the unit of the composite function we follow these steps:-

s(w(h)),

= s(hours over a week) {replacing the function w(h) by its units},

= (bangles over an hour(hours over a week)) {replacing the function s(t) with its units},

= bangles over a week {Simplifying}.

Thus, the units for the composite function s(w(h)) is <u>bracelets over a week</u> when the function s(t) approximates how many bangles Margaret makes per hour and the function w(h) represents how many hours per week Margaret spends making the bracelets.

Learn more about the units of a composite function at

brainly.com/question/15056566

#SPJ4

4 0
2 years ago
In a pack of 52 cards, 4 of the cards are kings. the first card is picked, the results are recorded and the card is returned to
Ulleksa [173]
Total cards = 52

Total kings = 4

P(2 kings) = (4/52)(4/52) = 1/169

Answer : 1/169
8 0
3 years ago
Pls pls help:( ASAP
katrin [286]

Answer:

The answer is 12.64 ft.

Step-by-step explanation:

From the figure it is clear that slope is the hypotenuse which we have to find while the other two sides are legs of the triangle whose lengths are known.

so the pitch of the roof is 12.64 ft.  i explained in the figure below as well.

4 0
3 years ago
The value of a car reduces by 30% every 6 months. A car costs $15,000 when new. What is the value of the car after 2 years?
Allisa [31]
6 months goes into 2 years 4 times
30 x 4 = 120
120% of 15,000 is
100% is 1,500
10% is 150
150 x 2 = 300 (20%)
1,500+300=1,800
15,000+1,800=16,800
hope this helped
3 0
3 years ago
Other questions:
  • What are 2 equivalent rations to 4:3
    9·1 answer
  • How do you do the problem -4p+9=-5
    15·2 answers
  • If there are 20 pencils and 5 students,write as a ratio for pencils to students in 3 ways.
    5·1 answer
  • The price of a necklace was increased by 20% to ?156. What was the price before the increase?
    6·1 answer
  • Two consecutive whole numbers that square root of 21 lies between
    5·1 answer
  • F(x)=-x2+8x-1 find f(3) show work
    13·1 answer
  • Help me find the answer please need help asap
    6·1 answer
  • Given the functions f(x) = 10x + 25 and g(x) = x + 8, which of the following functions represents f[g(x)] correctly?
    7·1 answer
  • If x &lt; -4, then -4 is a solution.<br> True<br> False
    6·2 answers
  • Help please anyone please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!