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
lorasvet [3.4K]
3 years ago
10

9. A television regularly costs $180, but it is on sale for 40% off. There is a

Mathematics
1 answer:
Alexandra [31]3 years ago
3 0

Answer:

C $113.40

Step-by-step explanation:

100%-40%=60%

$180x60/100

=$10800/100

=$108

100%+5%(tax)=105%

$108x105/100

=$11340/100

=$113.40 (C)

You might be interested in
Given the triangle below, what is the length of the third side, rounded to the nearest whole number?
Leno4ka [110]

Answer:

Step-by-step explanation:

You need the Law of Cosines for this, namely:

x^2=21^2+14^2-2(21)(14)cos58 where x is the missing side.

x^2=441+196-311.5925 and

x^2=325.4075 so

x = 18.0 or just 18

7 0
3 years ago
Consider the cubic function f(x) = x^3 + ax^2 + bx + 4 where (a) and (b) are constants. When f(x) is divided by x-3, the remaind
Debora [2.8K]

Answer:

see explanation

Step-by-step explanation:

Using the Remainder theorem

If f(x) is divided by (x - h) then f(h) = remainder, thus

f(3) = 3³ + a(3)² + b(3) + 4 = 10, that is

27 + 9a + 3b + 4 = 10

9a + 3b + 31 = 10 ( subtract 31 from both sides )

9a + 3b = - 21 → (1)

f(- 1) = (- 1)³ + a(- 1)² + b(- 1) + 4 = 6, that is

- 1 + a - b + 4 = 6

a - b + 3 = 6 ( subtract 3 from both sides )

a - b = 3 → (2)

Rearrange (2) expressing a in terms of b

a = 3 + b → (3)

Substitute a = 3 + b into (1)

9(3 + b) + 3b = - 21 ← distribute and simplify left side

27 + 9b + 3b = - 21

12b + 27 = - 21 ( subtract 27 from both sides )

12b = - 48 ( divide both sides by 12 )

b = - 4

Substitute b = - 4 into (3)

a = 3 - 4 = - 1

Hence a = - 1 and b = - 4

8 0
3 years ago
Which is the equation of a line that has a slope of Negative two-thirds and passes through point (–3, –1)?
weqwewe [10]

Answer:

Y=2/3x+1

Step-by-step explanation:

5 0
3 years ago
Find the eighth term of the
Pie

Answer:

see explanation

Step-by-step explanation:

The n th term of a geometric sequence is

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio, hence

a_{8} = 6 × (-1/3)^{7} = 6 × - \frac{1}{3^{7} } = 6 × - \frac{1}{2187} = - \frac{2}{729}

7 0
3 years ago
A square has a side length equal to 5x-3y inches. What is the area of this square
erastovalidia [21]

Answer:

D.

Step-by-step explanation:

The area is the product of 2 adjacent sides:

Area = (5x - 3y)(5x - 3y)     as the sides of a square are all equal.

= 5x(5x - 3y) - 3y(5x - 3y)

= 25x^2  - 15xy - 15xy + 9y^2

= 25x^2 - 30xy + 9y^2.

5 0
3 years ago
Other questions:
  • The sides of an equilateral triangle are 8 units long. What is the length of the altitude of the triangle?
    10·2 answers
  • Please help
    10·1 answer
  • What is 1955 divide by 85
    5·2 answers
  • Adem writes 18y to simplify an expression with three like terms. <br> How can you simplify 18y?
    7·1 answer
  • Look at the question below.
    5·1 answer
  • What is the first step to solving this equation?
    8·1 answer
  • Graph x-5y=20 <br> please show me the steps
    5·1 answer
  • Solve for the value of k.
    7·2 answers
  • (3^4/3^n)=3^6 what value of N makes equation true
    15·1 answer
  • Please give an explanation thank youuu<br> Write √216 as a power of 6
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!