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dem82 [27]
3 years ago
5

Find the distance between -23 and 17 on a number line. d =

Mathematics
1 answer:
Svet_ta [14]3 years ago
6 0

Answer:

Distance between -23 & 17 = 40

Step-by-step explanation:

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Plz help test review due tommorow i need answers! Tell me how you got the answer plz!
Juliette [100K]
Here we have three triangles, and all of them are congruent. (so what's 4 units on one side is also 4 units on the sides of the other triangles)

The perimeter of CAT = CA + AT + CT (the sides of the triangle)
We know that CA = 12 units, since it is labelled.
We know that DG is 4 units, and since AO and TO must be the same length as DG, they are also 4 units. 4 + 4 = 8 units, the length of AT.
We know that CG is 5 units. CG and GT are the same length. 5+5 = 10 = CT
CAT = 12 + 8 + 10  = 30 units

Perimeter of DOG = DO + OG + DG
DG = 4, it is labelled
DO = 5 since it is the same length as CG
We know that CA is 12 units, and it is made up of two equal parts, AD and CD. Therefore AD and CD = 6 units. (half of 12). OG is the same size.
DOG = 4 + 5 + 6 = 15 units
3 0
3 years ago
a cube of water, 0.6 meters inside is filled with salty water of a density of 1.045 grams/ millimeter. what is the weight of thi
shusha [124]
(0.6m)^{3} \times 1.045 \frac{g}{mL} \times (\frac{100 cm}{1 m})^{3} \times \frac{1mL}{1cm^{3}} \times \frac{1 oz}{28.349523125g}
= \frac{(0.6 \times 100)^{3} \times 1.045}{28.349523125} oz \approx 7962.04 oz
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3 years ago
How can you make a g o ogle m e e t without being warned
Marina86 [1]

Answer:

what do you mean being warned? just make it normally

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Write an expression that is equivalent to (3+14)+27​
tamaranim1 [39]

Answer: 44

<3<3<3<3<3<3<3<3

4 0
3 years ago
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Find the area of the shaded region
kogti [31]

Answer:

  7. 183 in^2

  8. 192.42 m^2

  9. 239.4 ft^2

Step-by-step explanation:

7. The figure seems most easily seen as a trapezoid with a triangle removed. The trapezoid has bases of 26 and 14, and a height of 15. So, its area is ...

  A = (1/2)(b1 +b2)(h) = (1/2)(26+14)(15) = 300 . . . . . . square inches

The triangle has a base of 26 and a height of 9, so an area of ...

  A = (1/2)bh = (1/2)(26)(9) = 117 . . . . . . square inches

Then the shaded area is ...

  300 in^2 -117 in^2 = 183 in^2

__

8. The area of the donut can be found different ways. One way is to multiply the width of the shaded area (3.5 m) by the circumference of its centerline.

The centerline diameter is 21 m - 3.5 m = 17.5 m, so the circumference of that circle is ...

  C = πd = π(17.5 m) = 17.5π m

Then the area of the shaded part is ...

  (3.5 m)(17.5π m) = 61.25π m^2 ≈ 192.42 m^2

__

9. As in problem 7, this can be treated as a parallelogram less a triangle. Here, we need to do a little work to find the area of the triangle.

The triangle of interest is a right triangle with hypotenuse 23.8 ft and one leg 21 ft. The Pythagorean theorem can be used to find the other leg:

  h = √(23.8^2 -21^2) = √125.44 = 11.2

Then the area of the triangle is ...

  A = (1/2)bh = (1/2)(21)(11.2) = 117.6 . . . ft^2

The area of the parallelogram (including the triangle) is ...

  A = bh = (23.8 ft)(15 ft) = 357 ft^2

So, the shaded area is the difference ...

  357 ft^2 -117.6 ft^2 = 239.4 ft^2

_____

<em>Comment on significant digits</em>

The area in problem 8 may be considered to be 192.325 m^2 if you are required to use 3.14 as the value for pi. Since that value is only good to 3 significant digits, it is quite pointless to report the answer to 6 significant digits when using that value. It is quite reasonable to use 192 m^2 for the answer, especially if you're required to round to whole numbers.

8 0
3 years ago
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