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3 years ago

CALCULATOR

Mathematics

1 answer:

Drupady [299]3 years ago

7 0

Answer: $d(r) = 5(0.87)^r$

Step-by-step explanation:

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Given an equilateral triangle with two vertices located at (-8, -5) and (3, 7), what is its perimeter?

Oduvanchick [21]

An equilateral triangle has 3 sides of equal length
find the length of 1 side and that is the length of te other 2 sides
so find the length and times 3

we need to find the distance betwen the points (-8,-5) and (3,7)

distance between the points (x1,y1) and (x2,y2) is
$D=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}$
so
distance between (-8,-5) and (3,7) is
$D=\sqrt{(-8-3)^2+(-5-7)^2}$
$D=\sqrt{(-11)^2+(-12)^2}$
$D=\sqrt{121+144}$
$D=\sqrt{265}$

the distance is √265
the perimiter is 3√265 units

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3 years ago

24 points algebra 1 help!

Mademuasel [1]

teacher = 2x+6

principal = 3x+10

principal - teacher

3x+10 - (2x+6)

distribute

3x+10-2x-6

x+4

Choice B

8 0

4 years ago

BRAINLIESTTT ASAP!! PLEASE HELP ME :)

Arada [10]

<h3>Answer: 2x/15</h3>

T = total amount of money = (14x^2)/15

y = amount of money each person receives

n = number of people

y*n = T

y*7x = (14x^2)/15

y = (1/(7x))*(14x^2)/15 .... multiply both sides by 1/(7x)

y = 2x/15

5 0

4 years ago

Look at the picture , may you please help me :)

serg [7]

Answer 3:2

14 And 33
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3 0

4 years ago

Read 2 more answers

What is the value of x ? i really need help with this.. i have to type the answer in

zimovet [89]

Answer:

x = 8

Step-by-step explanation:

Okay, so with the info here, we know that angle RXS is 4x + 1, angle SXT is x + 9, and angle RXT is 50.

Angle RXT is angle RXS + angle SXT because it's on the diagram. So from

RXT = RXS + SXT, we can creat the equation:

50 = (4x + 1) + (x + 9) [Because we plug in the values]

So from here, we have to solve the equation:

50 = (4x + 1) + (x + 9)

First, we want to simplify everything so:

50 = 5x + 10

Then we want to isolate the variable so:

50 - 10 = 5x + 10 - 10

40 = 5x

40/5 = 5x/5

8 = x

x = 8

5 0

3 years ago