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Ray Of Light [21]

2 years ago

7

Calculate the area of a circle with radius of 3.5 (1dp) please help

1 answer:

olga2289 [7]2 years ago

3 0

The area = r^2 *pi
So it's 3.5 * 3.5 which is 12.25 pi

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As an estimation, we are told £3 is €4.

cluponka [151]

Answer:22.78 to 2dp

Step-by-step explanation:

91.10 euros divide by 4 =22.775

=22.78 to 2dp

8 0

2 years ago

At time t=0, water begins to drip out of a pipe into an empty bucket. After 56 minutes, 8 inches of water is in the bucket. what

Sergio [31]

Answer:

W = (1/7) t

Step-by-step explanation:

At t = 0, W = 0

At t = 56 minutes , W = 8 inches

W = k*t The y intercept = 0 because t = 0 W = 0

8 inches = k * 56 minutes

k = 8 / 56

k = 1/7 inches / minute

W = (1/7) t

3 0

3 years ago

Graph the equation 4x−4y=12 using the intercepts.

Verdich [7]

X-intercept: (3,0)
Y-intercept: (0,-3)

3 0

3 years ago

The number of lines that can be drawn perpendicular to a given line at a given point on that line in a plane is:

ololo11 [35]

I think the answer is i D hope this helps

4 0

3 years ago

My brain is lagging:<

Lubov Fominskaja [6]

Distance between two points $(-3, 4)$ and $(5, -2)$ is $10$ units.

Mid-point of the line segment joining $(-1, -5)$ and $(7, 1)$ is $(3, -2)$ .

Degree of the given polynomial is $7$ .

6) Distance between two points $(x_1, y_1)$ and $(x_2, y_2)$ is:

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

So, distance between two points $(-3, 4)$ and $(5, -2)$ is:

$=\sqrt{(5-(-3))^2+(-2-4)^2}$

$=\sqrt{(8)^2+(-6)^2}$

$=\sqrt{64+36}$

$=\sqrt{100}$

$=10$

So, option D is correct.

7) Mid-point of the line segment joining $(x_1, y_1)$ and $(x_2, y_2)$ is:

$(\frac{x_1+x_2}{2}, \frac{y_1+y_2}{2})$

Mid-point of the line segment joining $(-1, -5)$ and $(7, 1)$ is:

$(\frac{-1+7}{2}, \frac{-5+1}{2})$

$= (\frac{6}{2}, \frac{-4}{2})$

$= (3, -2)$

So, option A is correct.

8) Degree of a polynomial is the highest power of the variable in the polynomial.

$f(x)=3x^2-7x^4+9x^7+2x^3$

Here, the highest power of the variable is $7$ .

So, option B is correct.

Learn more about distance formula, mid point formula, and degree of polynomial.

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8 0

1 year ago