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3 years ago

Wharts the differences between a dialation and a reduction in geometry?

1 answer:

6 0

A dilation is when the figure is enlarged and a reduction is when the figure is reduced, smaller.
The scale factor for dilation is > 1 and reduction >0,<1

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Fill in the blank with the least common denominator 5/6 + x = 7/12

irinina [24]

Answer: The least common denominator is 12

x= -3/12

Simplified: -1/4

Step-by-step explanation:

Do 7/12 - 5/6

7/12 - 10/12

= -3/12

Simplified: -1/4

7 0

1 year ago

What is the area of the following circle?

Tema [17]

Answer:

78.5 or 78 1/2 units

Step-by-step explanation:

The formula for the area of a circle using diameter is 1/4*pi.*d to the second power. Plug it in, and you get 78.5 or 78 1/2 units.

7 0

2 years ago

For this problem, assume that you are to pick 3 cars from the motor pool, which contains 7 subcompact cars, 4 compact cars, and

Jet001 [13]

you make it 20 different ways

4 0

2 years ago

Find the measure of the missing angle.<br> a<br> 66°

yanalaym [24]

Answer:

24°

Step-by-step explanation:

the total angle, made up from both a and 66°, is a mini-square, as you can see. this represents a right angle of 90°

thus, a and 66° combine to make 90°

a + 66° = 90°

subtract 66 from both sides to get a

a = 24°

7 0

2 years ago

What is the value of t=1 ∑³ (4 x 1/2^t-1)

Stels [109]

Answer:

Step-by-step explanation:

$\sum\limits_{t=1}^{3}(4\cdot(\frac{1}{2})^{t-1})$

This is the sum of the first three terms of a geometric sequence, where the first term is 4 and the common ratio is ½.

We can use a formula to find the sum, or, since there's only three terms, we can find the value of each term then add up the results.

4 · (½)¹⁻¹ = 4

4 · (½)²⁻¹ = 2

4 · (½)³⁻¹ = 1

4 + 2 + 1 = 7

4 0

3 years ago