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GarryVolchara [31]
3 years ago
14

PLEASE AWNSER SOON IT'S DUE IN 10 MIN!

Mathematics
2 answers:
Bond [772]3 years ago
8 0

Answer:

68

Step-by-step explanation:

The triangles can be found by 2(2x2).

The smaller rectangles can be found by 2(2x6).

The bigger rectangle can be found by 8x6.

8+24+36= 68

cupoosta [38]3 years ago
3 0

Answer:

80 units

Step-by-step explanation:

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Without his pencil or calculator, Joey knows that 2x³+3x²− 1 = 0 has at least one real solution. How does he know?
vova2212 [387]

Answer: Find the discriminant

Check explanation

Step-by-step explanation:

b^2-4ac

if it is equal to 0 there is no solution

Greater then 0 there is 2 real solution

Less then 0 there is 1 real

3^2-4(2*-1)

9-4(-2)

9(8)

72 there is at least one real solution

6 0
3 years ago
Select the correct answer.
zysi [14]

Answer:

A.  -5x = -23

Step-by-step explanation:

First you have to simplify the equation - 4(x - 5) + 8x = 9x - 3

-4x + 20 + 8x = 9x -3

9x - 4x = 20 + 3

5x = 23

=> equivalent to answer A.

8 0
2 years ago
One person can do a certain job in 20 minutes and another person can do the same job in twenty eight minutes. how many minutes w
Mamont248 [21]
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8 0
3 years ago
Help me now !!!!!!!!!!!!!!!!
miskamm [114]

In the first diagram the value of k is 10 and in the second diagram the value of k is 15/2.

<h3>What is the triangle?</h3>

The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

In the first diagram:

The sum of the 5k + 20 and 7k + 40 is 180

5k + 20 + 7k + 40 = 180

12k + 60 = 180

12k = 180 -60

12k = 120

k = 10

In the second diagram:

The sum of the two interior angles is equal to the exterior angle.

40 + 12k + 10 = 8k + 80

4k = 30

k = 30/4 = 15/2

Thus, in the first diagram the value of k is 10 and in the second diagram the value of k is 15/2.

Learn more about the triangle here:

brainly.com/question/25813512

#SPJ1

3 0
2 years ago
What is the least number of congruency statements needed to be stated in a triangle congruency proof to prove triangles are cong
amm1812

Answer:

3

Step-by-step explanation:

The answer should be 3? Geometry.

6 0
3 years ago
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