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Arturiano [62]
3 years ago
6

A family eats at a restaurant . The bill is$ 42 dollars . The family leaves a tip and spends $ 49.77 dollars .

Mathematics
2 answers:
Pie3 years ago
7 0

Answer:

♡ hi fairy ♡

-- i'm guessing it's $ 7.77 because i subtracted, you didn't give what you needed to find out. ♡

~ madeline ✧・゚: *✧・ *:・゚✧*

Step-by-step explanation:

bagirrra123 [75]3 years ago
3 0

Answer:

Since you didnt include an actual question im guessing you are looking for the tip amount which would be $ 7.77

Step-by-step explanation:

49.77-42=7.77

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Determine the 28th term of the sequence -242, -251, -260
maxonik [38]
We can figure this out using the explicit formula.
f(n)=f(1)+d(n-1)
n represents the term we are looking for.f(1) represents the first term in the sequence, which in this case, is -242.d represents the common difference, which in this case, is -9.

f(n) = -242 + -9(n - 1)
f(n) = -242 - 9n + 9
f(n) = -233 - 9n

Now, we can input 28 for n and solve.

f(28) = -233 - 9(28)
f(28) = -233 - 252
f(28) = -485

The 28th term of the sequence is -485.
7 0
3 years ago
Can someone help me please? It’s like my 3rd time trying to get some answers for this question. Thanks. :)
mote1985 [20]

Answer:

both rates of change equal the slope of the line (3/4)

Step-by-step explanation:

Part a)

We calculate the rate of change using the formula:

\frac{y_2-y_1}{x_2-x_1}

for the first interval [0,6], we calculate the y-values at x=0 and x=6;

at x=0 : y=\frac{3}{2} (0)+2=2

at x=6 : y=\frac{3}{2} (6)+2=11

therefore, the rate of change in this interval is: \frac{y_2-y_1}{x_2-x_1}=\frac{11-2}{6-0}=\frac{9}{6} =\frac{3}{2}

For the second interval [-4,4], we calculate the y-values at x=-4 and x=4;

at x=-4 : y=\frac{3}{2} (-4)+2=-4

at x=4 : y=\frac{3}{2} (4)+2=8

therefore, the rate of change in this interval is: \frac{y_2-y_1}{x_2-x_1}=\frac{8-(-4)}{4-(-4)}=\frac{12}{8} =\frac{3}{2}

Part b):

Notice that both rates of change equal the value of the slope of the linear function (3/2)

4 0
3 years ago
Part B
abruzzese [7]

Answer:

The method regarding the sampling to pick 200 sales representative is to make 20 groups of 10.

What is sampling?

Sampling simply means a process that's used in statistics where a predetermined number of observations are selected from the larger population.

In this case, the best way for the sales director to include 200 sales representatives, with an equal number from each region is simply to make 20 groups of 10.

Step-by-step explanation: correct on plato:)

6 0
2 years ago
What is the result when 3/8x + 2 1/5 - 3 1/2x - 4 1/10
Anna [14]
It equals to 3/5 and in alternative form is 0.6
6 0
3 years ago
A new battery is expected to have a storage capacity of 60 ampere-hour (A h). A sample is tested, resulting in a 2-side confiden
antoniya [11.8K]

Answer:

Option B) The battery storage capacity is significantly different than 60 Ah, at a confidence level of 95 %    

Step-by-step explanation:

We are given the following in the question:

Mean storage capacity = 60 ampere-hour

95% confidence interval =

63\leq \mu \leq 72

Thus, the correct answer based on the confidence interval is

Option B) The battery storage capacity is significantly different than 60 Ah, at a confidence level of 95 %

Since it is a two sided test we test whether the mean storage capacity is 60 Ah or different than 60 Ah

Thus, the battery storage is different from 60 Ah because the mean storage capacity does not lie in the 95% confidence interval.

4 0
3 years ago
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