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4 years ago

A bird 7 feet in the air flies down to the ground.What integer would you use to represent the change in the bird's position?

Mathematics

2 answers:

Semmy [17]4 years ago

5 0

When going down on a Cartesian coordinate system, you are moving in the negative direction, so-7

melomori [17]4 years ago

4 0

Answer:

Integer would use to represent the change in the bird's position is -7 feet

Step-by-step explanation:

Height of the bird = 7 feet

Now we are given that A bird 7 feet in the air flies down to the ground.

Since There is the change in position, and the bird went downwards

So, going down on a Cartesian coordinate system, you are moving in the negative direction

So, The bird is falling down so, it is falling in negative direction

So, integer = -7

So, integer would use to represent the change in the bird's position is -7 feet

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Find the volume of a sphere that has a diameter of 8 ft. USE PI = 3.14

Shkiper50 [21]

Answer:

Volume= 268 ft³

Step-by-step explanation:

Volume of sphere=4/3 pie r^3

Diameter =8 ft

⇒Radius = 4 ft

V= 4/3×3.14×4³

v=268

8 0

3 years ago

Solve 7m+2n=21 and 10m+4n=-10 with substitution

schepotkina [342]

I hope this helps you

10m+4n= -10

5m+2n= -5

-5m-2n= 5

7m+2n-5m-2n= 21+5

5m=26 m= 26/5

5.26/5+2n= -5

26+2n= -5

2n= -31

n= -31/2

3 0

3 years ago

Naomi has 45 minutes to get ready for school. She spends x minutes getting dressed. Write an expression that represents the numb

muminat

I think it would be 45-x x= minutes spent getting dressed

7 0

4 years ago

What value of x is in the solution set of 2(3x – 1) = 4x - 6?

Zarrin [17]

Answer:

x=-2

Step-by-step explanation:

2(3x – 1) = 4x - 6

Distribute

6x-2=4x-6

Moving like terms (4x)

2x-2=-6

Moving like terms (-2)

2x=-4

Divide both sides by 2 to isolate x

x=-2

Hope this helps! Please mark brainliest :)

4 0

4 years ago

Read 2 more answers

Find the distance from the point (8, 4) to the line y =<br> x+ 2.

natulia [17]

Answer:

The distance is $3\sqrt{2}\ units$

Step-by-step explanation:

step 1

Find the slope of the give line

we have

y=x+2

the slope m is equal to

m=1

step 2

Find the slope of the perpendicular line to the given line

Remember that

If two lines are perpendicular, then their slopes are opposite reciprocal of each other

we have

m=1 -----> slope of the given line

therefore

The slope of the perpendicular line is equal to

m=-1

step 3

With m=-1 and the point (8,4) find the equation of the line

y-y1=m(x-x1)

substitute

y-4=-(x-8)

y=-x+8+4

y=-x+12

step 4

Find the intersection point lines y=x+2 and y=-x+12

y=x+2 -----> equation A

y=-x+12 ----> equation B

Adds equation A and equation B

y+y=2+12

2y=14

y=7

Find the value of x

y=x+2 -----> 7=x+2 -----> x=5

The intersection point is (5,7)

step 5

Find the distance between the point (8,4) and (5,7)

we know that

The distance from the point (8,4) to the line y=x+2 is equal to the distance from the point (8,4) to the point (5,7)

Find the distance AB

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute

$d=\sqrt{(7-4)^{2}+(5-8)^{2}}$

$d=\sqrt{(3)^{2}+(-3)^{2}}$

$d=\sqrt{18}$

$d=3\sqrt{2}\ units$

see the attached figure to better understand the problem

6 0

4 years ago