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ollegr [7]
3 years ago
13

Choose which of the following are true statements regarding matrices:

Mathematics
2 answers:
Burka [1]3 years ago
6 0
<span>b) If two rows are identical in a matrix then there are infinitely many solutions
c) A 3-by-2 matrix and a 2-by-3 matrix have the same number of elements</span>
Brilliant_brown [7]3 years ago
6 0
C A 3-by-2 matrix and a 2-by-3 matrix have the same number of elements because on the periodic table it show the both combinations as elements... so 3+2= 5 and 2+3=5 so they both have 5 elements!

Hope this helps! B-)
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Solve and check:8a-4=25+6(a-8)
OlgaM077 [116]
8a - 4 = 25 + 6 (a - 8)

(distribute the 6)

8a - 4 = 25 + 6a - 48

(combine like terms 25 - 48)

8a - 4 = 6a - 23

( subtract 6a from both sides)

2a - 4 = -23

(add 4 to both sides)

2a = -19

(divide both sides by 2)

a = - 9.5

////CHECK/////

8 (-9.5) - 4 = 25 + 6 ( -9.5 -8)

(plug each side into a calculator)

-80 = -80

FINAL ANSWER:

a = -9.5
5 0
3 years ago
What is the range of y = sinx in the interval - π ≤ x ≤ 0?
Kaylis [27]

Answer:

-1 \le y \le 1

Step-by-step explanation:

Let be y = \sin x, the range of the function corresponds to the set of values of y. The sine function is a bounded function between -1 and 1. Hence, the range of the function is:

-1 \le y \le 1

6 0
2 years ago
I need help brosssssssssss
gavmur [86]
Answer
B. Is the answer.
5 0
3 years ago
If BTS=GHD BS=25 TS=14 BT=31 GD=4x-11 S=56 B=21 and H=(7y+5) find the values of x and y
77julia77 [94]

Given:

Consider the completer question is "If ∆BTS≅∆GHD, BS=25, TS=14, BT=31, GD=4x-11, m∠S=56, m∠B=21 and m∠H=(7y+5), find the values of x and y.

To find:

The values of x and y.

Solution:

We have,

\Delta BTS\cong \Delta GHD       (Given)

BS=GD                       (CPCTC)

25=4x-11

25+11=4x

36=4x

Divide both sides by 4.

9=x

In ∆BTS,

\angle B+\angle T+\angle S=180^\circ    (Angle sum property)

21^\circ+\angle T+56^\circ=180^\circ

77^\circ+\angle T=180^\circ

\angle T=180^\circ-77^\circ

\angle T=103^\circ

Now,

\angle T=\angle H            (CPCTC)

103=7y+5

103-5=7y

98=7y

Divide both sides by 7.

14=y

Therefore, the value of x is 9 and value of y is 14.

3 0
3 years ago
Can a decimal be an integer or a whole number ?
WINSTONCH [101]
It can only become a whole number when its over .99 such as 1.00 is a whole number and 7.24 is also a hole get it
5 0
3 years ago
Read 2 more answers
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