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Yuki888 [10]
3 years ago
6

Pls help I don’t know the answer

Mathematics
1 answer:
miskamm [114]3 years ago
8 0

Answer: The two values are: x = ±√2

Step-by-step explanation:

x² - 2 = 0

x² = 2 (add 2 to both sides)

x = √2 (square root each side)

x = ±√2 (when two things are equal, their square roots are equal)

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The length of a room is 23 1/2 feet. When using a 1/8 inch = 1 foot scale, find the length of
LuckyWell [14K]

Answer:

2.9375 inches or 2 15/16"

Step-by-step explanation:

23 1/2 feet equals 282 inches

(1/8 ÷ 12) = (x ÷ 282)

cross-multiply:

35.25 = 12x

x = 2.9375 or 2 15/16 inches

4 0
3 years ago
URGENT!!! PLEASE LOOK AT THE PICTURE!!! PLEASE HELP!!!!
Svetllana [295]

Answer:

Step-by-step explanation:

this is a 45-45-90 triangle.  The angle opposite the 45° angle is also 45°.

HI = HJ because this is an isosceles triangle.

Use the cos function to find the length of HJ:

cos Ф = adj / hyp  or  adj = (hyp)(cos Ф).

                                                                                        1

Here we have  adj  = HI = HJ = 4√5 cos 45° = 4√5 · -----

                                                                                       √2, or 4√5 / √2

                                              4√10

This last result simplifies to ----------

                                                   2

or 2√10 (answer)

The length of side HJ and that of HI is 2/√10.

7 0
3 years ago
One more math question! Thanks!
alisha [4.7K]
The answer is 50. no guarantee  this is.
5 0
3 years ago
Read 2 more answers
A craft project requires 3 pints of paint for every two students. About how many liters of paint are needed for 60 students? (2.
nadezda [96]

Answer:

90

Step-by-step explanation:

3/2=x/60

multiply 3/2 by 30 for the denominator to get to 60

90/60

90 liters of paint for 60 students

6 0
3 years ago
Read 2 more answers
Domain:<br> Range:<br> Increasing:<br> Decreasing:
mihalych1998 [28]

Answer:

Domain- -2>x<2

Range- [4,∞)

Increasing-[∞,4]

Decreasing-[4,∞]

3 0
3 years ago
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