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sergejj [24]
3 years ago
8

Please help math experts ♡​

Mathematics
2 answers:
mario62 [17]3 years ago
8 0

Answer:

Step-by-step explanation:

So you need to use pie * the radius squared

so its pei times 1 squared

=3.141 (3sf)

kupik [55]3 years ago
5 0

Answer:

Circle area formula: \pix r^2

THEREFORE

we can deduce that,

3,14 x 1^2

= 3,14

hope this helps :)

You might be interested in
Thank you for anyone who knows this
katen-ka-za [31]

Answer:  

  • Part (a) Vertex = (-3, -1)
  • Part (b) Vertex = (4, 5)
  • Part (c) function 2; max value = 5

=====================================================

Explanations:

Part (a)

In this case, the vertex is the highest point, so the vertex of function 1 is (-3, -1)

If the parabola was flipped so that it opened upward, instead of downward, then the vertex would be the lowest point.

----------------------------

Part (b)

We could graph this function to see where the highest or lowest point is, but there's another way we could find the vertex using algebra.

The given equation is in the form y = ax^2 + bx + c where in this case

  • a = -2
  • b = 16
  • c = -27

The a and b values are plugged into the formula below to get

h = -b/(2a)

h = -16/(2*(-2))

h = -16/(-4)

h = 4

This is the x coordinate the vertex since the vertex is (h,k)

To find k, we plug that value of h into the original function to find its corresponding y value.

y = -2x^2 + 16x - 27

y = -2(4)^2 + 16(4) - 27

y = -2(16) + 16(4) - 27

y = -32 + 64 - 27

y = 5

We found that h = 4 leads to k = 5. The vertex is (h,k) = (4, 5)

----------------------------

Part (c)

We'll compare the y values of each vertex

  • Function 1 has a vertex of (-3, 1)
  • Function 2 has a vertex of (4, 5)

The vertex with the larger y value is the winner, so that would be function 2. This parabola reaches a higher peak compared to the other curve.

The max value here is y = 5. In other words, it's the maximum output the function can produce.

If you graphed functions 1 and 2 together on the same xy grid (see below), you'll see that the curve for function 2 reaches a higher peak.

7 0
2 years ago
Suppose that F(x) = x3 and G(x) = -4x3-5. Which statement best compares the graph of G(x) with the graph of F(x)?
lara31 [8.8K]

Answer:

Answer is B

Step-by-step explanation:

F(x) is first stretched by factor 4 from '4x³';

It is then reflected in the x-axis, since it is '-4x³';

Lastly, it is shifted down 5 units, because of the '-5'.

5 0
3 years ago
The value of x =<br> 60°<br> 5<br> x<br> 30°
nikklg [1K]

Answer:

10

Step-by-step explanation:

with reference angle 30°

perpendicular (p) = 5

hypotenuse (h) = x

Now

sin 30° = p / h

1 / 2 = 5 / x

x = 10

Hope it will help :)

6 0
3 years ago
I really need help I have 20 minutes
nlexa [21]

Answer:

a. -1.7

b. -1.2

c. -0.5

d. 0.6

e. 1.1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Could you help asap! Brainliest and 50 points!
olga2289 [7]

(5x^2-21x-20)/(5x^2-16x-16)

((x-5)(5x+4))/((x-4)(5x+4))

(x-5)/(x-4)

x² - 3 x - 54 = x² + 6 x - 9 x - 54 = x ( x + 6 ) - 9 ( x + 6 ) = ( x + 6 ) ( x - 9 )

x² - 18 x + 81 = ( x - 9 )²

x² + 12 x + 36 = ( x + 6 )²

... = ( x + 6 ) · ( x - 9 ) / ( x - 9 )²  * ( x + 6 )² / ( x + 6 ) = ( after cancellation )

=  ( x + 6 )² / ( x - 9 )

After solving the given problem, I’ve been able to get 3(x-2) / 2(x-3) as the simplified form of the given equation. I am hoping that this answer has satisfied your query and it will be able to help you, and if you would like, feel free to ask another question.

If I understand clearly, the expression is

(18st^4/52s^3t)(16s^3/9s^2t)

To simply the expression, we simply have to multiply the constants and reduce the product to the lowest terms and apply the laws on exponents to simplify the variables. So, the answer would be:

8t^2/13s

(40v^2)/(35v^4) / (20v^3)/(5v)

(8)/(7v^2) / (4v^2/1)

(8)/(7v^2) * (1 / 4v^2)

2/(7v^4)

3 0
2 years ago
Read 2 more answers
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