All categories

3 years ago

What is the distance between the coordinate points (7,0), (-1,3)

Mathematics

1 answer:

JulijaS [17]3 years ago

4 0

Step-by-step explanation:

in moving from the point let say A(7,0) to the point B(-1,3), the x-coordinate increases by (7-(-1)= 8 while the y-coordinate decreses by (0-3)=-3. The same of this is given by finding the square of 8=64 and (-3)=9. by summing the two we have 64+9=73. so we find the square root of 73 which which is 8.55. so therefore the answer is 8.55 which is approximately 9

You might be interested in

On a recent quiz, the class mean was 72 with a standard deviation of 4.2. Calculate the z-score (to 2 decimal places) for a pers

barxatty [35]

Answer:

The Z score of the person is -3.09.

Step-by-step explanation:

The standard normal deviate (Z) for a normal distribution is given by

$Z=\frac{X-\bar{X}}{\sigma }$

where,

X = the value of observation

$\bar{X}$ is mean of the observations and

σ = standard deviation of the score

Applying values we get

$Z=\frac{59-72}{4.2}=-3.09$

5 0

4 years ago

Is 16.263548952347... a rational<br> number and why?

anzhelika [568]

Answer: no it is not

Step-by-step explanation: any number that repeats forever cannot be written as a rational way or a fraction. So it is not rational.

8 0

4 years ago

For the following right triangle find the side length x

lbvjy [14]

78’ degrees on the right side

3 0

3 years ago

Look at the shaded shapes drawn on a square grid.

prisoha [69]

Answer:yes

Step-by-step explanation:

8 0

3 years ago

Two numbers are such that if 11 is added to the first number, a number twice

Bezzdna [24]

Answer:

The 2 numbers are 14 and 17.

Step-by-step explanation:

Let the 2 numbers be x and y.

x + 11 = 2y

x - 2y = -11...............A

y +20 = 2x

2x - y = 20 ...............B

Multiply equation A by -2:

-2x + 4y = 22............C

Adding B and C :-

3y = 42

y = 14.

Substitute y = 14 in equation A:

x - 2(14) = -11

x = -11 + 28

x = 17.

5 0

3 years ago