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2 years ago

Two points have opposite x-coordinates and opposite y-coordinates. Which is a possible graph of these points?

Mathematics

2 answers:

Zarrin [17]2 years ago

7 0

Answer: B. A coordinate plane with points in quadrants II and IV.

Step-by-step explanation:

Let's take the point (-1,1) as an example

The point itself is in the second quadrant

the opposite of the point is (1,-1)

This point is in the fourth quadrant

Paladinen [302]2 years ago

6 0

Answer: B. A coordinate plane with points in quadrants II and IV.

Step-by-step explanation:

Let's take the point (-1,1) as an example

The point itself is in the second quadrant

the opposite of the point is (1,-1)

This point is in the fourth quadrant

calculate and you welcome

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The equation h(t)= -16t^2+864t models the path of a rocket shot into the air. After how many seconds does the rocket hit the gro

Vika [28.1K]

Answer:

t = 54 seconds

Step-by-step explanation:

The equation that models the path of a rocket into the air is given by :

$h(t)= -16t^2+864t$

It is required to find the time after which the rocket will hit the ground. When it hits the ground, the height of the rocket will becomes zero. It means,

h(t) = 0

i.e.

$-16t^2+864t=0\\\\16t(-t+54)=0\\\\16t=0, -t+54=0\\\\t=0\ and\ t=54\ s$

It means after 54 seconds, the rocket will hit the ground.

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3 years ago

What is the range of tanx? 1. all real numbers 2. -1 ≤ y ≤ 1 3. y > 0

aalyn [17]

all real numbers except the 90 and 270 because of cosx

3 0

2 years ago

Simplify the expression (5jk)^4

ivanzaharov [21]

The answer will be 625j^4 k^4

4 0

2 years ago

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Represent the set of numbers as decimals on the number line {5 3/10, 5 1/10, 5 and if you answer more than needed thank you

Alina [70]

Answer:

(0.53 > 0.51) both less than 1 while 5 is greater than both

Step-by-step explanation:

$\frac{53}{10} = .53, \frac{51}{10} = .51.$ and 5

the number line has two sides, with the left side for negative numbers while the right side is for positive numbers.

-5 -4 -3 -2 -1 -.53 -.51 0 .51 .53 1 2 3 4 5

By studying the number line above all decimal numbers greater than 0 but less than 1 are from 0, .1, .2,.........,.98, .99, 1.00 which is also the same as 1 because all numbers greater than 1 has an invisible point at its right side like 2., 3. which also means 2, 3 while negative number are all less than 0

7 0

3 years ago

Consider the line 7x+9y=5

alisha [4.7K]

Answer:

The slope of a line parallel to this line will be: -7/9

The slope of the perpendicular line will be:

$\frac{-1}{\frac{-7}{9}}=\frac{9}{7}$

Step-by-step explanation:

We know the slope-intercept form

$y=mx+b$

Here,

m is the slope

b is the y-intercept

Given the equation

$7x+9y=5$

simplifying to write in the lope-intercept form

$y=-\frac{7}{9}x+\frac{5}{9}$

Thus, the slope of the line is: -7/9

The slope of a line parallel to the line:

We have already determined that the slope of the line is: -7/9

We know that the parallel lines have the same slope.

Thus, the slope of a line parallel to this line will be: -7/9

The slope of a line perpendicular to the line:

We have already determined that the slope of the line is: -7/9

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line.

Thus, the slope of the perpendicular line will be:

$\frac{-1}{\frac{-7}{9}}=\frac{9}{7}$

4 0

3 years ago