Ask question

Ask question

All categories

3 years ago

14

Addison weighed two colored metal balls during a science class. The blue ball weighed 0.22 pounds and the red ball weighed 0.22

pounds. If Addison places both balls on the scale at the same time, what will the scale read?

1 answer:

pav-90 [236]3 years ago

8 0

Answer:

0.44

Step-by-step explanation:

You might be interested in

Drag the tiles to the correct boxes to complete the pairs not all tiles will be used match each quadratic graph to its respectiv

ch4aika [34]

Answer:

Part 1) The function of the First graph is $f(x)=(x-3)(x+1)$

Part 2) The function of the Second graph is $f(x)=-2(x-1)(x+3)$

Part 3) The function of the Third graph is $f(x)=0.5(x-6)(x+2)$

See the attached figure

Step-by-step explanation:

we know that

The quadratic equation in factored form is equal to

$f(x)=a(x-c)(x-d)$

where

a is the leading coefficient

c and d are the roots or zeros of the function

Part 1) First graph

we know that

The solutions or zeros of the first graph are

x=-1 and x=3

The parabola open up, so the leading coefficient a is positive

The function is equal to

$f(x)=a(x-3)(x+1)$

Find the value of the coefficient a

The vertex is equal to the point (1,-4)

substitute and solve for a

$-4=a(1-3)(1+1)$

$-4=a(-2)(2)$

$a=1$

therefore

The function is equal to

$f(x)=(x-3)(x+1)$

Part 2) Second graph

we know that

The solutions or zeros of the first graph are

x=-3 and x=1

The parabola open down, so the leading coefficient a is negative

The function is equal to

$f(x)=a(x-1)(x+3)$

Find the value of the coefficient a

The vertex is equal to the point (-1,8)

substitute and solve for a

$8=a(-1-1)(-1+3)$

$8=a(-2)(2)$

$a=-2$

therefore

The function is equal to

$f(x)=-2(x-1)(x+3)$

Part 3) Third graph

we know that

The solutions or zeros of the first graph are

x=-2 and x=6

The parabola open up, so the leading coefficient a is positive

The function is equal to

$f(x)=a(x-6)(x+2)$

Find the value of the coefficient a

The vertex is equal to the point (2,-8)

substitute and solve for a

$-8=a(2-6)(2+2)$

$-8=a(-4)(4)$

$a=0.5$

therefore

The function is equal to

$f(x)=0.5(x-6)(x+2)$

3 0

3 years ago

the sears tower in chicago is 1450 feet hugh. a model if the tower is 24 inches tall. what is the ratio of the height of the mod

VladimirAG [237]

1 foot = 12 inches

Therefore:

2 feet = 24 inches

------------------

2 feet x 725 = 1450 feet

------------------

The real tower is 725 times taller than the actual model.

Ratio:

725 : 1

4 0

2 years ago

Read 2 more answers

How do you graph y=2(1/3)^-2

Vera_Pavlovna [14]

The slope is 0 and the y-intercept is (0,18)

7 0

2 years ago

What is the percent of change from 500,000 to 20,000?

photoshop1234 [79]

Answer:

96 decrease

Step-by-step explanation:

5000000-20000=

480000/500000 x 100

96

96% decreased

8 0

2 years ago

Read 2 more answers

To transport 228 people to an island island ferry make six different trips on each trip the ferry carries the same number of peo

Tju [1.3M]

240 I calculated it your welcome :)

3 0

3 years ago

Read 2 more answers