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3 years ago

A triangle has the coordinates

Mathematics

1 answer:

Romashka-Z-Leto [24]3 years ago

6 0

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , thus

A(4, - 1 ) → A'(- 4, - 1 )

B(3, - 3 ) → B'(- 3, - 3 )

C(0, 2 ) → C'(0, 2 )

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A bag contains 10 red marbles, 15 yellow marbles, 5 green marbles, and 20 blue marbles. Five marbles are drawn

Sauron [17]

Answer:36%

Step-by-step explanation:

Because theres way more

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3 years ago

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A positive integer is twice another.the sum of the reciprocal of the two positive integer is 3/14. Find the integers

icang [17]

Answer:

$\huge\boxed{14\ \text{and}\ 7}$

Step-by-step explanation:

$n,\ m-\text{positive integer}\\\\n=2m-\text{a positive integer is twice another}\\\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}-\text{the sum of the reciprocal of the two positive integer is }\ \dfrac{3}{14}\\\\\text{We have the system of equations:}\\\\\left\{\begin{array}{ccc}n=2m&(1)\\\dfrac{1}{n}+\dfrac{1}{m}=\dfrac{3}{14}&(2)\end{array}\right$

$\text{Substitute (1) to (2):}\\\\\dfrac{1}{2m}+\dfrac{1}{m}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{1\cdot2}{m\cdot2}=\dfrac{3}{14}\\\\\dfrac{1}{2m}+\dfrac{2}{2m}=\dfrac{3}{14}\\\\\dfrac{1+2}{2m}=\dfrac{3}{14}\\\\\dfrac{3}{2m}=\dfrac{3}{14}\Rightarrow2m=14\qquad\text{divide both sides by 2}\\\\\dfrac{2m}{2}=\dfrac{14}{2}\\\\\boxed{m=7}$

$\text{Substitute it to (1):}\\\\n=2\cdot7\\\\\boxed{n=14}$

8 0

3 years ago

Please please help please please ASAP please I'm begging you please I have 10 minutes please y'all help please any ACE that can

never [62]

Answer:

x = 24

y = 12

Step-by-step explanation:

∆DEF ~ ∆JHG

Therefore:

DE/JH = EF/HG = DF/JG

x/18 = 20/15 = 16/y

✔️Solve for x:

x/18 = 20/15

x/18 = 4/3

Cross multiply

x*3 = 4*18

3x = 72

x = 72/3

x = 24

✔️Solve for y:

20/15 = 16/y

4/3 = 16/y

Cross multiply

4*y = 16*3

4y = 48

y = 48/4

y = 12

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3 years ago

Simplify the ratio 15:24

valkas [14]

Hi

15/3 = 5
24/3 = 8

15/24 = 5/8

Answer: 5/8

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3 years ago

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finlep [7]

Answer:

$151

Step-by-step explanation:

225 = 74 + m

- subtract 74 from both sides

225-74 = 74-74 +m

1. 151 = 74 - 74 + m

2. 151 = 0 + m

the 0 is irrelevant so you can remove it and you get

151 = m

the correct way to write it would be:

m = 151

6 0

3 years ago

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