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3 years ago

Change.83 to a fraction.

Mathematics

1 answer:

Anika [276]3 years ago

4 0

Answer:

83/100

Step-by-step explanation:

Decimals to fractions

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IF Q is the midpoint of PR, find the coordinates of R if P(11,-2) and Q(4,3). Write your answer in (x,y) format.

barxatty [35]

Answer:

The coordinates of R is (-3,8)

Step-by-step explanation:

The formula for the midpoint of a line segment is;

(x,y) = (x1 + x2)/2, (y1 + y2)/2

In this case, we have (x,y) = (4,3)

and we also have (x1,y1) = (11,-2)

what we do not have is (x2,y2)

From the question, we have that;

(11 + x2)/2 = 4

11 + x2 = 2(4)

11 + x2 = 8

x2 = 8-11

x2 = -3

Also;

(-2 + y2)/2 = 3

-2 + y2 = 2(3)

-2 + y2 = 6

y2 = 6 + 2

y2 = 8

So the coordinates of R is (-3,8)

5 0

4 years ago

The frog population at a lake doubles every week. The population can be modeled by f(x) = 15(2)x and f(6) = 960. What does the 9

insens350 [35]

Answer:

a is the correct option.

Step-by-step explanation:

We have been given the population model is $f(x)=15(2)^x, f(6)=960$

Here x represents number of weeks and f(x) is population of frog after x weeks.

For x= 6, we have

$f(6)=15(2)^6\\\\f(6)=15\times 64\\f(6)=960$

It means that the population after 6 weeks is 960.

Hence, f(6)=960 represents the population after 6 weeks.

a is the correct option.

6 0

4 years ago

a metal rod is 4/5 meters long. it will be cut into pieces that are 1/20 meters long. how many pieces will be made from the rod

marin [14]

16 rods can be made.

common denominators. 4/5=16/20.

16/20 divided by 1/20 is 16. 16 rods

8 0

3 years ago

Read 2 more answers

Write a word problem that you can represent with the expression 8 divided by 2/3

antoniya [11.8K]

I had 8 tampons this morning but 2/3 of the girls in my class got their period and now I’m out of tampons

8 0

4 years ago

Multiply: (3x + 2)(4x - 7)

svetoff [14.1K]

When you are doing distribution with this problem you are going to get your answer of....
D) 12x^2 - 13x - 14

Steps:
Simplify...
<span>(3x + 2)(4x - 7)
= (3x + 2) (4x + -7)
= (3x)(4x) + (3x)(-7) + (2)(4x) + (2)(-7)

= 12x^2 - 21x + 8x - 14
=12x^2 - 13x -14</span>

5 0

4 years ago