Which function is the same as y=cos(2(x+pi/2))-2

For the following problems, tell what operation(s) you need to use. Then, write and solve an equation for each problem.

masha68 [24]

<u>Solution-</u>

1.

Bill bought a computer and a printer for a total of $650.

Let p stand for the cost of the printer, so

$\text{Cost of the computer + p} =650$

$\Rightarrow 525+p=650$

$\Rightarrow p=650-525=125$

2.

Bonnie ordered 27 products from one company

Let m stand for the number of missing items

$\text{Number of item she got + m} =27$

$\Rightarrow 19+m=27$

$\Rightarrow m=27-19=8$

3.

Terri bought four lipsticks for a total cost of $20

Let l stand for the cost of one lipstick.

$Price\ of\ one\ lipstick \times I=20$

$\Rightarrow 4 \times I=20$

$\Rightarrow I=5$

4.

Each survey takes him about 10 minutes to complete

Let h stand for the number of hours

$Tota\l time\ taken\ = Time\ taken\ for\ 1\ survey\ in\ hours\times no.\ of\ survey$

$Total\ time\ taken\ =\frac{10}{60} \times 30 = 5 hours$

5.

Andy played golf three times during his vacation. His scores were 92, 87, and 88.

Let A stands for the average.

$Average \ score=A= \frac{Score_1+Score_2+Score_3}{3} =\frac{92+87+88}{3}=89$

6.

Tickets to a local basketball team’s games cost $12 each. Brendon and Ed each bought tickets to four games.

Total tickets = 2×4=8 (∵ They each bought 4 tickets)

(Let t stand for the amount spent on tickets.

$Amount\ spent\ on\ tickets\ =price\ of\ 1\ ticket \times total\ ticket}$

$\Rightarrow t=12 \times 8=96$

6 0

3 years ago

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Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found or a measure does not repre

Contact [7]

Answer:

1. Median = 10.1

2. A. The median represents the center.

3. D. The mode(s) can't represent the center because it (they) is(are) not a data value.

Step-by-step explanation:

Mean of a sample = sum of the samples/no of the samples

Samples in increasing order:

9.8

9.9

10.1

10.4

10.6

11.1

Mode is the sample with highest frequency.

Median is the middle entry of the data.

Mean = (9.8 + 9.8 + 9.9 + 10.1 + 10.4 + 10.6 + 11.1)/7

= 717/7

= 10.243

Median = 10.1

Mode = 9.8 because it has the highest frequency of 2

6 0

4 years ago

What is the solution set for 6x-(3x+4)=x-40

Eddi Din [679]

First, open the parentheses (make sure you distribute the '-':

6x - 3x - 4 = x - 40
3x - 4 = x - 40
2x = -36
x = -18

The solution set is {-18}

5 0

3 years ago

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11

Mila [183]

A = $4,312.00

I = A - P = $2,112.00

Hey!

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year.

Solving our equation:

A = 2200(1 + (0.08 × 12)) = 4312

A = $4,312.00

The total amount accrued, principal plus interest, from simple interest on a principal of $2,200.00 at a rate of 8% per year for 12 years is $4,312.00.

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Hope this helped in some way..have a great day!

4 0

3 years ago

(X+6)(x +9) help plsss

Mariulka [41]

Answer:

x^2+15x+54

Step-by-step explanation:

x^2+15x+54

is the answer :)

4 0

3 years ago

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