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-BARSIC- [3]
3 years ago
14

The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.65, and they leave a 20% ti

p. If the tip applies to the cost of the meal before the discount, what is the total cost of the meal?
Mathematics
1 answer:
MArishka [77]3 years ago
7 0
The total tip is 15.72

The cost of dinner with the discount is 66.85 (rounded to the nearest cent) 

66.85 + 15.72 = 82.57
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Which of the following is equivalent to the complex number i24?
Alika [10]

Answer: 1

Step-by-step explanation:

Rewrite as (i^4)^6

Rewrite i^4 as 1

Rewrite i^4 as (i^2) ^2

((i^2)) ^2)6

Rewrite i^2 as -1

((-1) ^2) 6

Raise -1 to the power of 2

1^6

One to any power is 1.

5 0
3 years ago
In each of the following situations, the sampling frame does not match the population, resulting in undercoverage. Give examples
Scrat [10]
Based on your question that ask where each situation and the sampling frame doesn't match the population, resulting in under coverage. The possible answer to your question is , under coverage in a random sampling where the result that you get is still just a partial of the whole but it could be done in anytime as long as the number of people are still there. It means that the sampling result do not just base in one session of sampling.
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3 years ago
The easiest form to work with when finding the slope of a line
Vaselesa [24]
Y=mx+b is the equation you want to use

5 0
3 years ago
Read 2 more answers
. Using the Binomial Theorem explicitly, give the 15th term in the expansion of (-2x + 1)^19
timofeeve [1]
Let's rewrite the binomial as:
(1 - 2x)^{19}

\text{Binomial expansion:} (1 + x)^{n} = \sum_{r = 0}^n\left(\begin{array}{ccc}n\\r\end{array}\right) (x)^{r}

Using the binomial expansion, we get:
\text{Binomial expansion: } (1 - 2x)^{19} = \sum_{r = 0}^{19}\left(\begin{array}{ccc}19\\r\end{array}\right) (-2x)^{r}

For the 15th term, we want the term where r is equal to 14, because of the fact that the first term starts when r = 0. Thus, for the 15th term, we need to include the 0th or the first term of the binomial expansion.

Thus, the fifteenth term is:
\text{Binomial expansion (15th term):} \left(\begin{array}{ccc}19\\14\end{array}\right) (-2x)^{14}
3 0
4 years ago
PLZ PLZ HELP ME MY TEACHER IS THE MOST HARDEST MARKER PLS ALL WORK SHOWN
spin [16.1K]

Answer:

(1,3)

y= 3

x= 1

Step-by-step explanation:

7x+y=10

3x-2y= -3

solve the equation

y=10-7x

3x-2y= -3

substitute the value of y into an equation

3x-2(10-7x)= -3

distribute

3x-20-14x= -3

add 14x from both sides

17x-20= -3

add 20 from both sides

17x=17

divide both sides by 17

x=1

substitute the value of x into an equation

y=10-7•1

multiply 7 to 1

y=10-7

subtract

y=3

(1,3)

7 0
3 years ago
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