I need help with all of them

Mathematics

1 answer:

lara [203]4 years ago

6 0

Click on the picture! This is the explanation in accident I deleted it hope it helps!

You might be interested in

PLS Write a real world problem for the inequality 8-2x≤5.

Hatshy [7]

Step-by-step explanation:

8-2x< 5
-2x<5-8
x< -3/-2
x<1.5

hope it helps.

3 0

3 years ago

Please help asap ill mark you brainliest!!

julia-pushkina [17]

Answer:

4,184.87 square meters

Step-by-step explanation:

let me know if you want to see work . . .

3 0

3 years ago

Consider the matrices -2 -1 1 4 1 A = B = 4 -2 4 -2 -2 4 -2 1 -1 (a) Verify that they are diagonalizable and that they commute.

Phoenix [80]

Answer:

Explanation to answers are shown in the attachment

Step-by-step explanation:

This is a long solution but the detailed step by step and appropriate mathematical manipulation has been done as shown in the attachment.

6 0

3 years ago

An equilateral triangle has an apothem of 5 cm. Find the perimeter of the triangle to the nearest centimeter.

san4es73 [151]

The apothem is the distance from the center to the midpoint of one of the sides of a regular polygon. You can make a right triangle with the apothem, the line from the midpoint to the corner and the line from the center to the corner. An equilateral triangle has 60 degree angles (180/3). The right triangle has half of one of those angles so 30 degrees. Now we have a 30-60-90 triangle where the short leg is 5cm. The long leg, which is also half of one side of the triangle is thus $5\sqrt{3}$ . A whole side of the triangle is $10\sqrt{3}$ . Multiply that by 3 to get the perimeter of $30\sqrt{3}$ .