PLEASE HELP FIND THE LENGTH OF RS.

Mathematics

2 answers:

Gwar [14]3 years ago

8 0

Answer:

Step-by-step explanation:

Distance between 2 points

$= \sqrt{(x1 - x2)^{2} + (y1 - y2)^{2} }$

☆ (x₁, y₁) is the first coordinate while (x₂, y₂) I'd the second coordinate.

Length of RS

$= \sqrt{ {[ - 1 -( - 4)] }^{2} + (9 - 1)^{2} } \\ = \sqrt{( - 1 + 4)^{2} + 8^{2} } \\ = \sqrt{ {3}^{2} + 64 } \\ = \sqrt{73} \\ = 8.54 \: (3 \: s.f.)$

Thus, RS is about 8.5 units.

Vesnalui [34]3 years ago

6 0

Answer:

I believe its A. 8.5

Step-by-step explanation:

You might be interested in

Convert 9900 pints into cups

madam [21]

Answer:19800

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Geometric of 1/3, 2/9, 4/27, 8/81, 16/243

Nataliya [291]

A The answer is
n
=
2
n
−
1
3
n

5 0

3 years ago

jamal finished 5/6 of his homework .margaret finished 3/4 and steve finised 10/12 of his homeowrk. which 2 students finished the

Blababa [14]

Jamal and Steve finished the same amount of homework because 5/6 is the same as 10/12

7 0

3 years ago

What is the ratio of the intensities of an earthquake PP wave passing through the Earth and detected at two points 19 kmkm and 4

Tamiku [17]

Answer:

The ratio of the intensities is roughly 6:1.

Step-by-step explanation:

The intensity I() of an earthquake wave is given by:

$I = \frac{P}{4\pi d^{2}}$

where P: is the power ans d: is the distance.

Hence, the ratio of the intensities of an earthquake wave passing through the Earth and detected at two points 19 km and 46 km from the source is:

$\frac{I_{1}}{I_{2}} = \frac{P/4\pi d_{1}^{2}}{P/4\pi d_{2}^{2}}$