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Leto [7]
2 years ago
13

Use <, >, or = to compare the following decimals.

Mathematics
1 answer:
TEA [102]2 years ago
7 0

Answer:

A is >

B is >

C is =

I hope this helps you.

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Please include work!
geniusboy [140]

Answer:

x = ± 4

y = - 2

Step-by-step explanation:

y = 0.5x² - 10 ------------------------(I)

y = -x² + 14   ------------------------(II)

Substitute the y value in equation (II)

    0.5x² - 10  = -x² + 14           {Add x² to both sides}            

0.5x² + x² -10 = 14                  {combine like terms}

       1.5x² - 10 = 14                   {Add 10 to both sides}

               1.5x² = 14 + 10

                1.5x² = 24         {Divide both sides by 1.5}

               1.5x²/1.5 = 24/1.5

                       x² = 16

                      x = ±4

Substitute x = 4 in (I)

y = 0.5 * 4² - 10

 = 0.5*16 - 10

 = 8- 10

y = -2

Substitute x = -4 in (I)

y = 0.5 * (-4)² - 10

 = 0.5*16 - 10

 = 8- 10

y = -2

5 0
3 years ago
80 percent of 230 is the same as 25 percent of what number?
vredina [299]

Answer:

736

Step-by-step explanation:

.8x230=184, 184x4=736

7 0
3 years ago
Read 2 more answers
Describe how a statistical question yields an answer with variability. Give a example.
solniwko [45]
Statistics is not an exact science, meaning that with any answer, there will be variance. This is because the sample size used to obtain values is always smaller than the population being studied.
3 0
3 years ago
Read 2 more answers
From a point 18 feet from the base of a tower, a wire is stretched to an attachment 40 feet up the tower. A right triangle with
Tamiku [17]
To find the length of the wire, use the Pythagorean theorem

a^2 + b^2 = c^2
18^2 + 40^2 = c ^2
324 + 1600 = c^2
1924 = c^2
44 = c

The wire is approximately 44 feet.
8 0
3 years ago
HELPPPPPPP LOOK AT THESE PICS PLS GEOMETRY
ElenaW [278]

Answer:

x + 3 + 45° = 180°. isosceles triangle

x = 180° - 45°-3°

x = 132°

90° + x = 180°

x =180° - 90°

x = 90°

7 0
2 years ago
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