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Leni [432]
3 years ago
8

Find the area of the region shaded in green. Use 3.14 to approximate pi.

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer:

254 cm² (to 3 s.f.)

Step-by-step explanation:

Area of shaded region

= area of large circle -area of smaller circle

\boxed{area \: of \: circle = \pi {r}^{2} }

Radius of large circle= 15cm

Radius of smaller circle= 12cm

Area of shaded region

= π(15²) -π(12²)

= 225π -144π

= 81π

= 81(3.14)

= 254.34

= 254 cm² (3 s.f.)

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The line represents the number of packs of gum, y, remaining at a concession stand after x minutes.
Sav [38]

Answer:

B. the initial number of packs of gum

Step-by-step explanation:

Another name for y-intercept is initial value.

I am joyous to assist you anytime.

8 0
3 years ago
The end behaviour for the polynomial function h(x)=−x3+x4−2x+1 h ( x ) = - x 3 + x 4 - 2 x + 1 is: x→−[infinity], y→−[infinity]
Goryan [66]

Answer:

\text{As  } x \to \infty, y  \to \infty,$and as  x \to -\infty, y  \to \infty

Step-by-step explanation:

Given the polynomial function: h(x)=-x^3+x^4-2x+1

To examine its end behavior, we create a table of values that we can then examine.

\left|\begin{array}{c|c}x&h(x)\\--&--\\-4&329\\-3&115\\-2&29\\-1&5\\0&1\\1&-1\\2&5\\3&49\\4&185\end{array}\right|

From the table, we see a repeating pattern of positive values of h(x) with h(1)=-1 being an axis of symmetry.

Therefore, as:

x \to \infty, h(x)  \to \infty\\x \to -\infty, h(x)  \to \infty

6 0
3 years ago
Which triangles are congruent
Anarel [89]

Answer:

I don’t see any triangles to tell you

Step-by-step explanation:

8 0
3 years ago
a used bookstore will trade two of its books for three of us and they'll brings and 18 books to trade how many books can she get
Gemiola [76]
18/3=6
6x2=12
She can get 12 books from the store
4 0
4 years ago
What is the value of x?
rodikova [14]
1) expand the brackets 
6(-3 - x) - 2x = 14
-18 - 6x - 2x = 14
simplify
-18 - 8x = 14
then add 18 to both sides to get the x's on there own
-8x = 32
then divide by -8
x = 32/-8
x = -4

2) multiply everything by 7x
2 + (6 x 7x) + ( 17x × 7x) = 18 x 7x
2 + 42x + 119x^2 = 126x
put everything on one side
119x^2 - 84x + 2 = 0
then use quadratic equation to solve

x = 0.024671849 or 0.6812105039

 
6 0
4 years ago
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