All categories

3 years ago

First question. The midpoint of SR is...

Mathematics

1 answer:

Blizzard [7]3 years ago

6 0

The formula of a midpoint SR:

$M\left(\dfrac{x_S+x_R}{2},\ \dfrac{y_S+y_R}{2}\right)$

We have

S(4, 1) and M(7, -5)

Substitute:

$\dfrac{4+x_R}{2}=7\qquad|\cdot2\\\\4+x_R=14\qquad|-4\\\\x_R=10\\\\\dfrac{1+y_R}{2}=-5\qquad|\cdot2\\\\1+y_R=-10\qquad|-1\\\\y_R=-11$

<h3>Answer: R(10, -11)</h3>

You might be interested in

What is the recíprocas Of 3/5

Alexandra [31]

Reciprocal is the flipping of the fraction. Like the reciprocal of 2/3 is 3/2. So just switch the numbers around.
Reciprocal of 3/5=5/3
Hope this helps.

5 0

3 years ago

Katie earned $1200 in 8 years on an investment at a 6% annual simple interest rate. How much was Katie’s investment?

Alekssandra [29.7K]

Given
Time = 8 yer a
Rate = 6% = 0.06
Interest earned = $1200
Simple Interest

Let P = the principal (the investment)
Then
P*8*0.06 = 1200
0.48P = 1200
P = 1200/0.48 = $2500

Answer: $2500

8 0

3 years ago

Daniel answered 16 questions correctly, left 5 blank and had 4 wrong answers. He also got 8 out of 10 possible points for extra

Varvara68 [4.7K]

Answer:

use your brain dummy!

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the length of ST if RS=7?

nika2105 [10]

We can use tangent to calculate the length of ST.

$\sf tangent=\dfrac{opposite}{adjacent}$

Here, the opposite side of the 60 degree angle is ST, and the adjacent is RS. Plug in what we know, we can use 'x' for side ST:

$\sf tan(60\textdegree )=\dfrac{x}{7}$

Solve for 'x', multiply 7 to both sides of the equation:

$\sf x=7tan(60\textdegree )$

This is an exact answer for the length of ST, we can find an approximate with a calculator:

$\sf x\approx 12.12$

3 0

4 years ago

Read 2 more answers

All numbers whose absolute value is -5

hram777 [196]

Answer:

Step-by-step explanation:

Absolute value = 5

Absolute valve of a number is always positive regardless of direction.

8 0

3 years ago