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ad-work [718]
2 years ago
14

Select all of the rational numbers. (there can be more than one)

Mathematics
2 answers:
nadya68 [22]2 years ago
7 0

Answer:

Rational numbers:

  • 3^-1
  • pi
  • 6.66... (The one that has a line above it)

An irrational number has endless non-repeating digits to the right of the decimal point.

kap26 [50]2 years ago
7 0

Answer:

3^-1, square root of 9, -0.25, and 0.6

Step-by-step explanation:

Rational numbers are numbers that you can turn into fractions.

3^-1 = 0.3333333333... which is also known as 1/3

square root of 9 = 3, which can be written as 3/1

-0.25 can be written as -1/4

0.66666666... = 2/3

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The lengths of the sides of the base of a right square pyramid are 3 feet, and its slant height is 8 feet. If the sides of the b
8_murik_8 [283]

Answer:

B. 9

Step-by-step explanation:

The base of a right square pyramid is a square, and we know that the lengths of the square are 3. We can calculate the original area of the base as: 3 * 3 = 9 ft squared.

The slant height is the height of the triangular sides of the pyramid. We know that it's 8 feet, and that the base of the triangle shares a side with the square, so b = 3. Knowing that h = 8 and b = 3, we can apply the triangle area formula: (b * h) / 2 = (8 * 3) / 2 = 24/2 = 12 ft squared. However, there are 4 triangles, so we multiply 12 by 4: 12 * 4 = 48 ft squared.

We add 48 to 9 to get the total original surface area: 48 + 9 = 57 ft squared.

Now, however, the sides of the base of the square are increased to 9 ft, so our new area is 9 * 9 = 81 ft squared.

The slant height becomes 24 ft, so our new triangle area is: (24 * 9)/2 = 216/2 = 108 ft squared. We multiply that by 4: 108 * 4 = 432 ft squared.

The new surface area is thus 81 + 432 = 513 ft squared.

To find the factor the original surface area is multiplied by, we divide 513 by 57: 513 / 57 = 9.

Thus, the answer is B, 9.

Hope this helps!

5 0
3 years ago
PLEASE HELP!!!<br> Which point is tangent to the circle?<br><br> A<br><br> D<br><br> M<br><br> Q
lisov135 [29]

Answer:

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6 0
1 year ago
F(x) = x2 + 1<br> f(-3)=)
ozzi

Answer:

f(-3) means, put -3 at x

therefore, f(-3)= 3²+1

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5 0
3 years ago
How many diagonals can be drawn in the shape below?
castortr0y [4]

Answer:

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3 0
2 years ago
The graph below shows a proportional relationship between x and y.
Bas_tet [7]

Answer:

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Use point (1, 3.5) on the graph

x = 1, y = 3.5

  • y/x =
  • 3.5/1 =
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k = 3.5

7 0
2 years ago
Read 2 more answers
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