2 years ago

Which matrix multiplication is possible

Mathematics

1 answer:

kvasek [131]2 years ago

6 0

Answer: D)

Step-by-step explanation: using a matrix calculator for each equation, the last one was the only one that was possible which came out to be ( 0,4,0,-4)

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Identify the 12th term of the arithmetic sequence in which a7 = 40 and a18 = 106.

Lady_Fox [76]

we are given

airthematic sequence

we can use nth term formula

$a_n=a_1+(n-1)d$

n is number of terms

an is nth term

d is common difference

a1 is first term

We are given

a7=40

we can use it

$a_7=a_1+(7-1)d$

$40=a_1+6d$

$a_1+6d=40$

a18 = 106

$a_1_8=a_1+(18-1)d$

$a_1+17d=106$

we can subtract both equations

$a_1+17d-a_1-6d=106-40$

$11d=66$

$d=6$

now, we can find a1

$a_1+6d=40$

we can plug d=6

$a_1+6*6=40$

$a_1=4$

12th term:

$a_1_2=a_1+(12-1)d$

now, we can plug values

$a_1_2=4+(12-1)*6$

$a_1_2=4+66$

$a_1_2=70$

so, 12th term is 70...........Answer

3 0

3 years ago

Convert 1 Iinto an improper fraction.

FromTheMoon [43]

Answer:

only mixed number can be changed into improper fraction according to my khowlage of grade7

Step-by-step explanation:

thank you

3 0

3 years ago

Come on smart heads . Earn you some points with this easy problem . I know you can do it !!!

Anna [14]

${(x + 22)}^{2}$

6 0

3 years ago

Or Find the slope of the line y = 9 5 x − 9 5 .

Elanso [62]

Answer:

Step-by-step explanation: 56776

8 0

3 years ago

One common factor of two numbers is 40. Another common factor is 10. If both numbers are less than 100, what are the two numbers

Viefleur [7K]

Only two numbers less than 100 have a factor of 40: 40 (1 x 40) and 80 (2 x 40). Since 40 is a factor of both 40 and 80, 10 must also be a factor - indeed, 40 = 4 x 10 and 80 = 8 x 10.

The two number must be 40 and 80.

5 0

3 years ago