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sleet_krkn [62]

3 years ago

14

What is The ratio of 20 hours to 45 hours

1 answer:

Inga [223]3 years ago

6 0

Answer:

4hrs to 9hrs

Step-by-step explanation:

The ratio of 20 hours to 45 hours is

4hrs to 9hrs

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number 4 I have absolutely no idea how to do. I generally understand finding distance on the coordinate plane but this has reall

Over [174]

For Part A, in creating the square, you did it correctly.

Now for Part B, you can create a right triangle by adding a point at -4, -3, and we'll call it, say, T.

Then you can use the Pythagorean's Theorem to find the length of one side of the square.

The Pythagorean's Theorem is $a^{2} + b^{2} = c^{2}$

A would be the distance between P and T, and B would be the distance between Q and T. So then, a would be 7, and B would be 2.

To fill it in, it would be $7^{2} + 2^{2} = c^{2}$

or 49 + 4 = $c^{2}$

or 53 = $c^{2}$

or $\sqrt{53}$ = x

Which is equal to about 7.28

Now multiply that by 4 to get the perimeter, or 29.12

So the perimeter would be about 29.12

3 0

3 years ago

Use the sine rule to calculate BC :)

Mkey [24]

Answer:

BC≈12.2

Step-by-step explanation:

As we know

24/sin(100°)=BC/sin(30°)

BC=sin(30°)×24/sin(100°)

BC=1/2×24/sin(100°)

BC=12/sin(100°)

BC=12.2 (approximately)

3 0

3 years ago

Read 2 more answers

The formula for the circumference C of a circle with diameter d is C = xd. Write an expression to represent the circumference of

Bas_tet [7]

Answer:

circumference of a circle is equal to π (22/7)×diameter of a circle

6 0

3 years ago

The points (10, w) and (3, 1) fall on a line with a slope of 0. What is the value of w?

sveticcg [70]

Answer:

w = 1

Step-by-step explanation:

If the slope is 0, then this line will be horizontal.

This means that the y value will be the same for all points on the line.

Since we are given the point (3, 1), we know that the y value is 1. This means all other points on the line will have 1 as the y value.

So, w is equal to 1 because it is the y value in that ordered pair.

4 0

4 years ago

What is the coordinate of point P that lies along the directed line segment from Q(2, 5) to R(7, 12) and partitions the segment

Wittaler [7]

Answer:

Option (3). (5, 9.2)

Step-by-step explanation:

If Point P divides the line segment QR in the ratio of m : n.

Let the coordinates of the point P are (x, y)

Since coordinates of the point P are given by,

x = $\frac{m(x_2)+n(x_1)}{m+n}$

y = $\frac{m(y_2)+n(y_1)}{m+n}$

Where $(x_1, y_1)$ and $(x_2,y_2)$ are the ordered pairs representing points Q and R.

If $(x_1,y_1)$ represents (2, 5) and $(x_2,y_2)$ represents (7, 12),

Coordinates of point P(x, y) which divides the segment in the ratio of 3:2.

x = $\frac{3(7)+2(2)}{3+2}$

x = $\frac{25}{5}=5$

y = $\frac{3(12)+2(5)}{3+2}$

y = $\frac{46}{5}=9.2$

Therefore, Point P will be represented by (5, 9.2)

Option (3) will be the answer.

3 0

3 years ago