Someone please please help help me please please help help please please help me please please ASAP ASAP!!!!

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

8 0

okay so what you want to do is lie by saying you did it.

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Point R is located at (1, 2) on a coordinate grid. Point S is located at (4, 5) on the same

Aleksandr-060686 [28]

Answer:

4.2 units

most likely answer choice B

Step-by-step explanation:

(1, 2) and (4, 5)

To find the distance between two points, we use the distance formula:

$d = \sqrt{(x_{2}-x_1)^2 + (y_2-y_1)^2 }$

Let's plug in what we know.

$d = \sqrt{(4 - 1)^2 + (5 - 2)^2 }$

Evaluate the parentheses.

$d = \sqrt{(3)^2 + (3)^2 }$

Evaluate the exponents.

$d = \sqrt{(9) + (9) }$

Add.

$d=\sqrt{18}$

Evaluate the radical.

d = 4.24

Round to the nearest tenth.

d = 4.2 units

*note: The answer choice is 4.6. I'm not sure if that is a typo on someone's end, but the distance between these two points is exactly 4.24264068712 units.

Hope this helps!

6 0

3 years ago

john is twice as old as mary. the sum of their ages is 21. how old is mary? let j = john's age and m = mary's age. select the sy

Verdich [7]

Hello,

let's assume j the john's age, m the mary's age.

<span>"John is twice as old as mary"==>j=2*m
</span>
<span>"the sum of their ages is 21" ==>j+m=21

==>2*m+m=21
==>3m=21
==>m=7
and j=21-7=14

</span>

3 0

4 years ago

4 to the 2nd power multiplied by 4 to the negative 3 power

Sati [7]

Note that for negatives, flip the place of the number, and change the power to positive

4^-3 = 1/(4³)

Multiply

1 x 4² = 4²

Divide. Note that when dividing powers with the same base, subtract the powers

4²/4³ = 1/4

1/4 is your answer

hope this helps