Answer:
B.The matrix is invertible because the determinant is defined.
Step-by-step explanation:
<u>Definition:</u> A matrix is invertible if the determinant is not equal to zero.
Given the matrix:
The determinant of the matrix:
Since the determinant, , the matrix is invertible because the determinant is defined.
Answer:
15y^9
Step-by-step explanation:
Step 1: Multiply the coefficients
3 * 5
= 15
Step 2: Add the powers.
5 + 4
= 9
<em>Final answer: 15y^9</em>
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<u><em>Mark as brainliest please, I need a few more :D</em></u>
Answer: 15
Step-by-step explanation:
Answer:
when adding you just line the decimals up like this, let's say you had to add 1 to 2.58.
2.58
+ <u> 1 .00</u>
3.58
when multiplying you might have to move it, say you had to multiply 1.5 by 2.2. (you don't have to line up the decimals like with addition)
1 .5
<u> </u><u>×</u><u> 2.2</u>
30
<u> </u><u>+</u><u> 300</u>
3.30
1.5 has one decimal place and 2.2 also has one decimal place so you put those 2 decimal places in your answer.
sorry if this is a bit confusing lol