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Radda [10]
3 years ago
11

Find the area of the shaded region. use 3.14 for pi. Round to the hundredths if necessary.

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
7 0

Answer:

<em>122.46 cm² </em>

Step-by-step explanation:

A = \pi r^{2}

~~~~~~~~~

r_{1} = 8 cm

r_{2} = 5 cm

A = 3.14 ( 8² - 5² ) ≈ <em>122.46 cm²</em>

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The scale for a model house is 1:12
guapka [62]

Answer:

here's what I got from wikipedia (i dont like taking of other's brain skills :/ )

Step-by-step explanation:

<em>1:12 scale is a traditional scale (ratio) for models and miniatures, in which 12 units (such as inches or centimeters) on the original is represented by one unit on the model. Depending on application, the scale is also called one-inch scale (since 1 inch equals 1 foot)</em>

<em>hope this helps you :)</em>

5 0
3 years ago
Read 2 more answers
-5/4-(-1/6) help please
tiny-mole [99]
A way to add fractions that always works is to multiply each numerator by the denominator of the other, then express the sum of products over the product of the denominators.
\dfrac{a}{b}+\dfrac{c}{d}=\dfrac{a}{b}\cdot\dfrac{d}{d}+\dfrac{c}{d}\cdot\dfrac{b}{b}\\\\=\dfrac{ad+bc}{bd}

Here, you have
\dfrac{-5}{4}-\dfrac{-1}{6}=\dfrac{-5\cdot6-(-1)\cdot4}{4\cdot6}=\dfrac{-26}{24}\\\\=\dfrac{-13}{12}=-1\frac{1}{12}

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3 0
2 years ago
What is the rate of change for the function f(x)=2x-3
Stolb23 [73]

Answer:

2

Step-by-step explanation:

f(x) = 2x - 3 is a linear function

The rate of change of a linear function is the measure of the slope.

The equation is in slope- intercept form, that is

y = mx + c ( m is the slope and c the y- intercept )

y = 2x - 3 has slope m = 2

Thus rate of change = 2

4 0
3 years ago
Decide whether ▱ABCD with vertices A(−2,3), B(2,3), C(2,−1), and D(−2,−1) is a rectangle, a rhombus, or a square. Select all nam
ozzi

Answer:

D and B

Step-by-step explanation:

3 0
3 years ago
The radius of a circle is 1 foot. What is the length of a 45 degree arc
Elodia [21]
Circumference = 2 x PI x r
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45/360 = 0.125

75.36 * 0.125 = 9.42 inches
7 0
3 years ago
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