PLEASE HELP!!!
The Johnson and Smith families want to determine the difference in utility prices between March, when it's warmer, and January. Matrix J is for January. The rows represent electric, natural gas, and cable/satellite. The columns are the Johnson and Smith Family. Matrix M is for March. Write a matrix to show the difference in prices from January to March (J-M)? What do you think it means when you get a negative number in your resulting matrix?

9514 1404 393

Answer:

  (x -4)² +(y +9)² = 116

Step-by-step explanation:

The standard form equation for a circle is ...

  (x -h)² +(y -k)² = r² . . . . . . center at (h, k), radius r

The value of the r² term can be found by using the point in the circle expression.

  (x -4)² +(y +9)² = (8 -4)² +(1 +9)² = 16 +100

  (x -4)² +(y +9)² = 116 . . . . . equation of the circle

Answer:

15.79

Step-by-step explanation:

Answer:

- Computer-assisted self-interviewing.

Step-by-step explanation:

'Primary data' is characterized as the data or the information gathered firsthand for a particular purpose or research. Such data is collected personally through surveys, observations, and direct interviews.

As per the details, the given data illustrates 'computer-assisted self-interviewing' as the kind of primary data as the data is collected directly from the travelers visiting the airport using the brief survey method on a tablet. This will help Teavana make credible inferences regarding the people's reviews about their latest tea flavors so that they can make necessary alterations as per the likes and preferences of the people.

Answer:

C

Step-by-step explanation:

1. The domain is the x-value of a function.

2. In that image, the x-values are the numbers on the left of each parenthesis.

3. You should put the domains in increasing order, so the final answer is -2, 0, 2, 4.

Answer:

x = 65º

Step-by-step explanation:

Isoceles Triangle Theorem: If the two sides of an isoceles triangle are congruent, then angles opposite those sides are congruent.

Therefore x = 65º

Answer:

Step-by-step explanation:

Answer:

In order to find the total inches Jasper grew during the two years, we have to add up the total inches he grew when he was 15 and the total inches he grew when he was 16. Therefore, we have to add 1/10 and 3/10 together.

1/10 + 3/10 = 4/10, or 2/5.

Therefore, Jasper grew a total of 2/5 inches in those two years.

answer:

4 is the answer to the question

Answer:

[tex]R_5=1.12[/tex]

Step-by-step explanation:

We want to calculate the right-endpoint approximation (the right Riemann sum) for the function:

[tex]f(x)=x^2+x[/tex]

On the interval [-1, 1] using five equal rectangles.

Find the width of each rectangle:

[tex]\displaystyle \Delta x=\frac{1-(-1)}{5}=\frac{2}{5}[/tex]

List the x-coordinates starting with -1 and ending with 1 with increments of 2/5:

-1, -3/5, -1/5, 1/5, 3/5, 1.

Since we are find the right-hand approximation, we use the five coordinates on the right.

Evaluate the function for each value. This is shown in the table below.

Each area of each rectangle is its area (the y-value) times its width, which is a constant 2/5. Hence, the approximation for the area under the curve of the function f(x) over the interval [-1, 1] using five equal rectangles is:

[tex]\displaystyle R_5=\frac{2}{5}\left(-0.24+-0.16+0.24+0.96+2)= 1.12[/tex]

Answer:

Step-by-step explanation:

(x1 = -4, y1 = -4) y ( x2 = -4, y2 = -9)

la pendiente es indefinida por que es una recta vertical

m= (y2-y1)/(x2-x1) = (-9+4)/ (-4+4) = -5/0 indefinida

Answer:

11

Step-by-step explanation:

9514 1404 393

Answer:

  1944 ft³ using the estimated height

Step-by-step explanation:

Ashleigh can use her estimate of the height, along with the other dimensions, in the volume formula to get an estimate of the volume.

  V = LWH

  V = (18 ft)(12 ft)(9 ft) = 1944 ft³

Answer:

[tex]\huge\boxed{Option \ 4}[/tex]

Step-by-step explanation:

[tex]\displaystyle sin \theta = \frac{opposite }{hypotenuse}[/tex]

Where opposite = 55, hypotenuse = 73

[tex]\displaystyle sin R = \frac{55}{73} \\\\\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

Around 0.40

Step-by-step explanation

If she doubles the gift every year, do 18x2=36, 36 rounds to 40 or 0.40.

The total of all the gifts on the girl's 18th birthday given from her grandma for this considered case is  evaluated as 2621.43 dollars

Lets suppose the geometric sequence has its initial term is [tex]a[/tex], multiplication factor is  r, then, its sum is given as:

[tex]S_n = \dfrac{a(r^n-1)}{r-1}[/tex]

(sum till nth term)

The sequence would look like [tex]a, ar, \cdots, ar^{n-1},\cdots[/tex]

For this case, we are specified that:

That shows that the gift amounts each year will form a geometric sequence where a = 1, and r = 2 (as amounts are doubled).

The gift amounts would look like:

[tex]\\1, 2, 4, \cdots\\or\\1, 2\times 1, 2^2 \times 1, \cdots[/tex]

We have to find these terms' sum till 18th term(18th term is the gift of her 18th birthday).

Thus, we have: n = 18, a = 1, and r = 2.

The sum will be:

[tex]S_n = \dfrac{a(r^n-1)}{r-1} = \dfrac{1(2^{18}-1)}{2-1} = 2^{18} - 1 = 262143 \: \rm cents[/tex]

There are 100 cents in 1 dollars,

Thus, 1 cent = 0.01 dollars,

and thus, 262143 cents form 2621.43 dollars.

Thus, the total of all the gifts on the girl's 18th birthday given from her grandma for this considered case is  evaluated as 2621.43 dollars

Learn more about sum of terms of geometric sequence here:

https://brainly.com/question/1607203

Answer: D) 1.969 x 5

Step-by-step explanation: Hope this help :D

Answer:

the answer is d circumference

Answer:

-2

Step-by-step explanation:

h(-4) = -4                          

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Answer:

$7500

Step-by-step explanation:

I=PRT

=5,000×0.15×10

Answer:

4.93 million workers

Step-by-step explanation:

0.375*5.15+3 = 4.93125

The number of available workers is 4.93

The given expression:

[tex]p(h) = 0.375h + 3[/tex]

where;

h is the minimum hourly wage = $5.15

To find:

The number of available workers is calculated as follows:

[tex]p(5.15) = 0.375(5.15) + 3\\\\p(5.15) = 4.931\\\\p(5.15) \approx 4.93[/tex]

Thus, the number of available workers is 4.93

Learn more here: https://brainly.com/question/23853488

Answer:

Cost of shirt

c = $5.50x

$115.5

20 t - shirts

Step-by-step explanation:

The dependent variable here is Cost of shirt

T - shirt cost , c equation of any number of customers :

The cost per shirt = $5.50

Let the number of shirts purchased = x

Hence,

c = $5.50x

The cost 21 shirts

x = 21

c = $5.50 * 21 = $115. 5

With c = $110

number of shirts, n equals

110 = 5.50x

110/ 5.5 = x

20

= 20 at shirts

Answer:

792

Step-by-step explanation:

formula = whl

w= 12

h = 6

l = 11

= 12*6*11

= 792

Hope u understand

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Answer:

x = -7 or 7

Step-by-step explanation:

x² - 49 = 0

→ Factorise

( x + 7 ) ( x - 7 )

→ Solve

x = -7 or 7

Answer:

(x + 7) (x - 7) = 0

x + 7 = 0 and x - 7 = 0

So, x = +7 and -7

Hope this helps!

Answer:

C. Reflection over x- axis, down 6 right 3

Step-by-step explanation:

Answer:

B. 1

Step-by-step explanation:

17 is not greater than 18

17 is greater than 1

17 is equal to 17

17 is less than 39

Answer:

[tex]9 + 10 = 19[/tex]

hope it helps

Answer: 21

Explanation: For the meme

Answer:

A = 154°

B = 26°

C = 154°

Step-by-step explanation:

✔️A = 180° - 26° (angels on a straight line)

A = 154°

✔️<B and 26° are vertical angles. Therefore,

B = 26° (based in the vertical angles theorem, vertical angles are congruent to each other)

✔️C = A (based in the vertical angles theorem, vertical angles are congruent to each other)

Substitute

C = 154°

Answer:

The are 40 girls in the choir.

Step-by-step explanation:

First you set up an equation:

5/3=x/24

Then solve the inequality:

5 * 24 = 120

120 / 3 = 40 girls.

Hope this was helpful!!! Please mark me as brainliest!!!! XD