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Alex787 [66]
2 years ago
7

The value 3pie/16 is a solution for the equation 2cos^2(4x)-1=0 true or false

Mathematics
1 answer:
SSSSS [86.1K]2 years ago
3 0
The answer is true i had the same question
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Which of the following describes all the solutions to the inequality 5x+7y=22 when y=-4
Kryger [21]
Substitute...
5x + 7(-4) = 22
5x - 28 = 22
+ 28 + 28
5x = 50
__ ___
5 5

x = 10
4 0
3 years ago
Pls answer you dont have to show work
Vlada [557]

Answer:

Option C, 6.5

Step-by-step explanation:

<u>Step 1:  Substitute y in the equation 3x - 5y = 22</u>

3x - 5y = 22

3x - 5(-5x + 32) = 22

3x + 25x - 160 + 160 = 22 + 160

28x / 28 = 182 / 28

x = 6.5

Answer:  Option C, 6.5

8 0
3 years ago
The following is a parallelogram solve for the variables
Andrews [41]
X = 66 degrees. (Co interior angles are supplementary, add up to 180)

2y + 4 = y + 7
2y - y = 7 - 4
Y = 3
6 0
3 years ago
NEED HELP ASAP I WILL GIVE BRAINLIEST
inn [45]

Answer: It's the second option

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
PLEASE HELP!!! NO BOTS!! solve for x​
Vesnalui [34]

Answer:

/2=1.41

/5=2.24

(a)^2+(b)^2=(c)^2

(1.41)^2+(b)^2=(2.24)^2

2+(b)^2=5

(b)^2=5-2

(b)^2=3

b=/3 or 1.73

Step-by-step explanation:

for a triangle, a missing value of the side can be found using pythagorean theorem which is (a)^2+(b)^2=(c)^2

replace it with the given value.

*note:(c)^2 should be the hypotenuse

inverse of +ve is -ve

inverse of square is square root

7 0
3 years ago
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