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Otrada [13]
2 years ago
14

Find the inverse of the matrix A= [4 -5] [-7 9]

Mathematics
1 answer:
castortr0y [4]2 years ago
8 0

Answer:

hope this answer is right 71/45

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Which number has a 3 that is ten times greater than the 3 in 513
KatRina [158]

Answer:

5130

Step-by-step explanation:

You just multiply 513 by 10 to get 5130.

You can check this answer by just seeing if it fits the requirements, which it does. Making it the correct answer.

6 0
3 years ago
24 POINTS!!!!!!!! <br> 6 (4x - 5) <br> and <br> 22x - 33 - 2x
Iteru [2.4K]
6(4x-5)= 24x-30
24x-22x-2x= 2x
-30-33=63 

answer is 2x-63



5 0
3 years ago
Greatest common divisor of 66 and 90
pav-90 [236]

Answer:

6

Step-by-step explanation:

66 / 6 =11

90/6 =15

11 & 15 prime to each other, so 6 is the answer.

8 0
3 years ago
The Taylors Have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was 60
kherson [118]

We are told that the Taylors Have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was 60.26. Later , Mrs.Taylor discovered that 1 weeks expense of $74 was incorrectly recorded as $47.

We can find the correct mean weekly expenses by calculating the mean of difference between 74 and 47, then adding it to the given mean weekly expenses.

\frac{74-47}{12}

\frac{27}{12}=2.25

Now let us add 2.25 in 60.26 to find the correct mean weekly expenses.

\text{Correct mean weekly expenses}=60.26+2.25

\text{Correct mean weekly expenses}=62.51

Therefore, the correct mean weekly expenses for the Taylors will be 62.51.

8 0
4 years ago
A small office purchases bottled drinking water. The water comes in containers that hold gallons. Two-thirds of the office conta
Zarrin [17]

Answer:

213.333 ounces

Step-by-step explanation:

A small office purchases bottled drinking water. The water comes in containers that hold 5 gallons. Two-thirds of the office container was drained last week to put out a fire in the wastebasket.

a. How much water (in ounces) is left in the container?

b. How many 12-ounce glasses can be filled with the water that remains in the container

Container = 5 gallons

Two-thirds was drained last week to put out a fire in the wastebasket

That is 2/3 of 5

= 2/3 × 5

= 10 / 3 gallons

Water left in the container = 5 - 10/3

= 15-10/3

= 5/3 gallons

Convert 5/3 gallons to ounces

5/3 gallons = 213.333 ounces

B. Number of 12 ounces glass that can be filled from the water left in the container = 213.333 ounces / 12

= 17.77775

Approximately 18

5 0
3 years ago
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