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timama [110]
3 years ago
13

The two matrices show the cost of three different electronics prices (rows) at two different stores (columns). Matrix F is from

1995 and Matrix H is from 2005. Which matrix shows the change in prices from 1995 to 2005?
Note: Answer choices and matrices regarded to this question is below.

Mathematics
1 answer:
SashulF [63]3 years ago
4 0

H-F=\left[\begin{array}{ccc}198&201\\176&172\\256&267\end{array}\right]-\left[\begin{array}{ccc}234&245\\198&187\\312&345\end{array}\right]\\\\=\left[\begin{array}{ccc}198-234&201-245\\176-198&172-187\\256-312&267-345\end{array}\right]\\\\=\left[\begin{array}{ccc}-36&-44\\-22&-15\\-56&-78\end{array}\right]\\\\Answer:\ \boxed{A}


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Examine the work shown. Explain the error and find the correct result.
wlad13 [49]

Answer:

= 6

Step-by-step explanation:

in the third step, they did 2 x -12 and got 24. It should’ve been -24 since it was a positive times a negative. It shouldve been

-24 - (-30)

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6 0
3 years ago
Please help me!<br><br> Thank you
fgiga [73]

The required measures of the angle are given as,
∠JKL = 72°      ∠MLK = 108°      ∠JMK = 36°
∠MJL = 54°       ∠KNL = 90°

Given that.
The measure of the rhombus is given, we have to determine the measure of the angles,

<h3>What is angle?</h3>

orientation of one line with respect to the horizontal or other respective line is known as a measure of orientation and this measure is known as angle.

Here,
∠JKL= 2 × ∠JKM  = 72°
∠MLK = 180 - 2 × ∠JKM =  108°
∠JMK = ∠JKM = 36°
∠MJL = ∠MLK/2 =  54°
The diagonal of the rhombus bisect each other at an angle of 90°
So,
∠KNL = 90°

Thus, all the measure of the angles is shown above.

Learn more about Angles here:
brainly.com/question/13954458

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7 0
1 year ago
What’s the slope and y intercept of all of them
Anestetic [448]

Answer:

See below:

Step-by-step explanation:

Take the difference between y values of any two values and divide by difference in corresponding x values

for example, 1: 66-50/4-1=16

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3. 63-56/8-7= 7/1 = 7

4. 100-78/9-7= 22/2 = 11

you can choose any two points, not just the two I used.

3 0
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In the 1984 Presidential election, Ronald
allochka39001 [22]
525/538=0.975 (round up Bc of the 5)
98% of the votes
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3 years ago
Which sequence is geometric and has 1/4 as its fifth term and 1/2 as the common ratio?
olchik [2.2K]
5th term = a1r^4   where a1 = first term and r = common ratio

so 1/4 = a1 * (1/2)^4

a1 = 1/4 / (1/2)^4  =  4

so the sequence  is  4 , 4*1/2, 4*(1/2)^2...

= 4, 2, 1, 1/2, 1/4 .....
5 0
3 years ago
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