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frosja888 [35]
3 years ago
13

Which of the following matrices does not have an inverse?​

Mathematics
1 answer:
Margarita [4]3 years ago
6 0
I think it is the second one
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You are a furniture restorer who is mixing a solution of olive oil and lemon juice. The solution is for polishing wooden furnitu
zzz [600]

The correct answer is A. 1.5 cups

Explanation:

The total of polishing wooden furniture is equivalent to the total of olive oil plus the total of lemon juice. Additionally, in this case, the result should be given in cups. First, let's consider the values given.

50% of a cup of lemon juice + 25% of a quart with olive oil

The first quantity 50% of a cup of lemon indicates half cup of lemon was added, which is equivalent to 0.5 cups as 1 cup = 100% of a cup and 50% is the half.

Now, the second quantity is provided in quarts, which is not the same as a cup. Indeed 1 quart is equivalent to 4 cups, which represents 100%. This means 100% = 4 cups. Now, to calculate the 25% follow this procedure.

1. Write the values

4  =  100 (total  percentage)

x =    25 (percentage to be calculated

2. Solve this by using cross multiplication

x100 = 4 × 25

x100 = 100

x = 100 ÷ 100

x = 1 (cups in 25%)

This means 1 cup of olive oil was added and this plus 0.5 cup of lemon juice is equivalent to 1.5 cups of solution.

6 0
3 years ago
How many odd numbers with 4 different digits, can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8? (No repetition is allowed)
olga55 [171]

Answer:

840 ( D )

Step-by-step explanation:

GIVEN DIGITS : 1,2,3,4,5,6,7,8  

Number of odd numbers = 4

Number of even numbers = 4

therefore the number of odd numbers with 4 different digits can be formed by the same way the number of even numbers ( without repetition )

Hence the number of ways odd numbers with 4 different digits = Total number of ways of forming 4 digit numbers / 2

8*7*6*5 = 1680 / 2 =  840 ways

6 0
3 years ago
Can yall help me? I will give 100 points please don't scam me.
allochka39001 [22]

Answer:

D and B

Step-by-step explanation:

D for the first question and B for the second one

8 0
3 years ago
Read 2 more answers
Betty brought 8 cookies for lunch. She wanted to share the cookies with 3 friends. If she shared the cookies equally, how many c
Kamila [148]

Step-by-step explanation:

Betty including her three friends equals to four people. Between Betty and her 3 friends, the 8 cookies are divided so each if them receive 2 cookies.

5 0
3 years ago
What is the quotient of −1 and y
Tom [10]

Answer:

-1/y

Step-by-step explanation:

This quotient is the result when you divide y into -1:  -1/y

3 0
3 years ago
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