All categories

3 years ago

The coordinates of point T are (0,5). The midpoint of ST is (1,-4). What is the coordinate of S.

Mathematics

1 answer:

DerKrebs [107]3 years ago

6 0

Answer:

Step-by-step explanation:

(x + 0)/2 = 1

x + 0 = 2

x = 2

(y + 5)/2 = -4

y + 5 = -8

y = -13

(2, -13)

You might be interested in

If f(x) = x2 - 2x and g(x) = 6x + 4 for which value of x does (t +g)(x)=0

Vinil7 [7]

Answer:

-2

Assumption:

Find the value of x such that $(f+g)(x)=0$ .

Step-by-step explanation:

$(f+g)(x)=0$

$f(x)+g(x)=0$

$(x^2-2x)+(6x+4)=0$

Combine like terms:

$x^2+4x+4=0$

This is not too bad too factor on the left hand side since 2(2)=4 and 2+2=4.

$(x+2)(x+2)=0$

$(x+2)^2=0$

So we need to solve:

$x+2=0$

Subtract 2 on both sides:

$x=-2$

Let's check:

$(f+g)(-2)$

$f(-2)+g(-2)$

$((-2)^2-2(-2))+(6(-2)+4)$

$(4+4)+(-12+4)$

$(8)+(-8)$

$0$

0 was the desired output of $(f+g)(x)$ .

7 0

3 years ago

Find the area of the polygon.

zalisa [80]

Answer:

$A=128\ cm^2$

Step-by-step explanation:

we know that

The area of the polygon is equal to the area of a square plus the area of four congruent triangles

$A=b^2+4[\frac{1}{2}(b)(h)]$

where

$b=8\ cm\\h=4\ cm$

substitute

$A=8^2+4[\frac{1}{2}(8)(4)]$

$A=64+64=128\ cm^2$

4 0

3 years ago

How do I change my level? It says I am in high school but I am only in middle school.

weqwewe [10]

Answer:

go on your profile ---> edit profile----> preferences

Step-by-step explanation:

5 0

3 years ago

Someone plz help me :(

kondaur [170]

Answer:

the answer is 9 mark me brainlest

Step-by-step explanation:

A P E X

7 0

2 years ago

50 points please answer

inn [45]

Answer:

D. 30 kilometers

Step-by-step explanation:

Add all the given distances relative to the map together:

6.5 + 9.5 + 4 = 20

Multiply that by the scale to convert centimeters to kilometers:

20 x 1.5 = <u>30</u>

Your answer is 30 kilometers.

You also could have gotten the same answer by multiplying each number by the scale and then adding those together but that is slightly more work so the way I showed is more convenient.

6 0

2 years ago