Convert 1/2 fractions into decimal numbers​

Answer:

Q1

The exponential growth model for frogs:

F- number of frogs, x- number of years, 1.22 - growth factor

Calculations:

All numbers rounded

Q2

The exponential growth model for bacteria:

B- number of bacteria, x- number of hours, 1.8 - growth factor

Calculations:

All numbers rounded

Q3.

The exponential growth model for fish:

F- number of fish, x- number of months, 1.02 - growth factor

Calculations:

All numbers rounded

Answer:

a) F(12) = 821(1.02)¹² = 1041

b) F(120) = 821(1.02)¹²⁰ = 8838

All numbers rounded

Answer

616

Step-by-step explanation:

So for every 5 fruits he will sell 3 vegtables. if we divde 1848 by 3 we get 616.

The "kite" has.

The upper pair of sides are congruent.

The lower pair of sides are congruent.

But the uppers are not equal to the lowers, so opposite sides are unequal.

Answer: E. 40

Step-by-step explanation:

The x-intercept of a line is when the y coordinate is equal to zero, so input zero in for y and solve for x to find the x-intercept.

1/2x + 3/5(0) = 20

1/2x = 20    

 x = 40

Answer:

[tex]y=\frac{5}{6}x+2\frac{2}{3}[/tex]

Step-by-step explanation:

From the point (-2,1) to the point (4,6)

there is a [tex]\frac{rise}{run}[/tex] of [tex]\frac{5}{6}[/tex], or a slope of [tex]\frac{5}{6}[/tex]

[tex]rise=[/tex] the change in y

[tex]run=[/tex] the change in x

To get the y-intercept we just have to use the formula: [tex]b=y-mx[/tex]

[tex]b=[/tex] y-intercept

[tex](x,y)=[/tex] point on the line

[tex]m=[/tex] slope

[tex]b=1-(\frac{5}{6})(-2)[/tex]

[tex]b=1+\frac{5}{3}[/tex]

[tex]b=2\frac{2}{3}[/tex]

So the equation of the line is: [tex]y=\frac{5}{6}x+2\frac{2}{3}[/tex]

plz mark me brainliest. :)

Answer:

-6

Step-by-step explanation:

because -6+-4= 10 but idek how its wrong

Answer:

No, but it is a Rhombus.

Step-by-step explanation:

Hope this Helps.

Answer:

8

Step-by-step explanation:

3x8=24-4=20

Hope this helps!

Answer:

Look down below!

Step-by-step explanation:

Alright, so let's start solving this

1. First we are going to be placing the x one one side and the constants (or the regular numbers) on the other side.

How to do that?

Well, we can take -3x and 20 to their other sides.

The reason for this is that we don't want to have the value with x as a negative

So we do

-3x-4 = 20

+3x -20 -20+3x

You may not understand what was about but all I did was just added 3x to both sides and subtracted 20 to both sides to make the new equation

-24 = 3x or 3x = -24

Now we can see that the x has a number it is being multiplied with so to get rid of the number we divide everything by 3

So

3x/3 = -24/3

Which results in x = -8 and voila, there is your answer!

Answer:

200 + 28= 228

..................

The values of the numbers in the boxes is 57 x 4 = 200 + 28 = 228

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first number be represented as p

where the value of p = 57

Let the second number be represented as q

where the value of q = 4

And , A = 57 x 4

where the blank spaces in the boxes are by distributive property and

A = 57 x 4

( 50 + 7 ) 4 = ( 50 x 4 ) + ( 7 x 4 )

On simplifying the equation , we get

A = 200 + 28

A = 228

Therefore , the value of A is 228

Hence , the expression is A = 228

To learn more about equations click :

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Answer:

The top-left box should be 4x, and the bottom-left box should be 2.50x.

Step-by-step explanation:

Because the cost from 2 hours to 6 hours is 4 dollars per hour, it is 4x.

Likewise, because the cost over 6 hours is 2.50 dollars per hour, the cost is 2.50x.

Everything else seems fine.

Hope this helps!

9514 1404 393

Answer:

  f(x) = {0, x≤ 1; 4(x -1), 1 < x ≤ 6; 2.5x +5, x > 6}

Step-by-step explanation:

The hourly rate gives you the slope of the function in the relevant interval. The added constant is chosen to make the function continuous.

That is, at 1 hour, the charge is zero, so the next segment (4x+b) must have a value of b that makes the charge for 1 hour be zero. That will be b=-4.

Likewise, for more than 6 hours, the charge will be (2.5x+b), where b is chosen to make this expression match the charge for 6 hours. We know the charge for 6 hours is 4(6) -4 = 20, so b must match ...

  2.5(6) +b = 20

  b = 20 -15 = 5

The segment from 1 to 6 hours is f(x) = 4x -4.

The segment for more than 6 hours is f(x) = 2.5x +5.

_____

Alternate solution

Since the charge is zero for the first hour, the first segment could be considered to be charging only for hours after the first. That is, an alternate expression for hours 1–6 could be 4(x -1). Likewise, we could say the expression for hours more than 6 is 2.5(x +2).

Answer:

Þe eye in Þe sky does not lie

Step-by-step explanation:

Answer:

3 x 1/6 = 1/2

Step-by-step explanation:

first:

[tex]\left(\frac{1}{4}+1\frac{1}{2}\right)\cdot \frac{1}{2} =\left(\frac{1}{4}+\frac{3}{2}\right)\cdot \frac{1}{2} =\frac{\left(\frac{1}{4}+\frac{3}{2}\right)\cdot \:1}{2} =\frac{\left(\frac{1}{4}+\frac{6}{4}\right)\cdot \:1}{2} =\frac{\frac{7}{4}\cdot \:1}{2} =\frac{\frac{7}{4}}{2} =\frac{7}{4\cdot \:2} =\frac{7}{8}[/tex]

So the first is the correct one.

by a romanian guy.

Answer:

It would be 1 1/8 because 1 times 1 = 1 and the 4 times 2 would be 8 so there is 1 1/8

Step-by-step explanation:

Answer:

Step-by-step explanation:

expression 30+x will calculate the money I will have in my wallet at the end of the day after being paid to work as a coach, given that I already have $30 in my wallet

x-is the amount of money I will make today

Answer:

[tex] - {x}^{2} (x + 1)(x - 2)(x - 3)[/tex]

Step-by-step explanation:

We first have to create the roots of the graph. This can the done by creating factors based on the x intercepts as shown in the equation above. We have to make sure we change the signs of the x intercepts in order to create zeros.

We then have to square (x+0) because it does not completely cross the x axis. Finally we we multiply everything by -1 because the graph is starting from the top.

From the graph , we can see that the line of the graph passes through the points ,

(0,0)

(-1,0)

( 2, 0 )

(3,0)

These are the roots of the equation. The point on which the graph cuts the x axis are the roots of the graph . Here since the graph cuts x axis 4 times , it has 4 roots as ,

-1

2

0

3

Equation of the graph :-

[tex]\implies f(x) = x ( x +1)(x-2) ( x-3) [/tex]

Answer:

14.86606875 or

[tex] \sqrt{221} [/tex]

Step-by-step explanation:

[tex] {5}^{2} + {14}^{2} = 221[/tex]

[tex] \sqrt{221} [/tex]

use the pythagorean theorem

Answer:

86351

Step-by-step explanation:

Answer:

it is long distance and people must communicate with each other to have a bounding relationship as all partners in love should to keep a healthy relationship. for example one could ask the other on a date or a movie. others may go to a sporting event of some sort. this way bonding with each other may be a good time and they may enjoy themselves with each others company. that is all class is adjourned.

Answer:

27/30 as a percentage is 90%

...

Answer:

Step-by-step explanation:

If the 12-pack of water bottles at Kroger costs $4.60 then How much would one of those bottles of water cost?

1. Divide the cost by the number of bottles.

4.60 ÷ 12 = $0.38/bottle

Answer:

6

Step-by-step explanation:

If she has 30 inches and each bow takes 5 inches then

30/5 = 6

Gabriella makes 6 bows

Answer:

(iii) C = {0}.

iv) The set of all triangles having four sides is a NULL ser

Step-by-step explanation:

Complete question

Identify the following sets as null set or singleton set.

(i) A = {x : x ∈N, 1 < x < 2}

(ii) B = The set of all even natural numbers which are not divisible by 2

(iii) C = {0}.

(iv) D = The set of all triangles having four sides.

A null set is a set that contains no element while a singleton set is. a set that has only one element

The set C ={0} has just one element which is zero. This shows that the set is a singleton set

Also a triangle only has 3sides. No triangle can have 4sides. Hence the set of all triangles having four sides is a NULL SET

Answer:

It's D

Step-by-step explanation:

When you add the 19-50 and over 50 then you get the highest answer

Answer:

x=9/23 and y=18/23

Step-by-step explanation:

Substitute 2 x for y in 25x−y=9

25x−y=9

25x−2x=9

23x=9

23x/23=9/23

x=9/23

substitute 9/23 for x in y=2x

y=2x

y=2(9/23)

y=18/23

x= 9/23 and y=18/23

Answer:

The answer is 8x - 9

Step-by-step explanation:

3x + 5x - 2 - 7

8x - 9

Answer:

The answer is B

Step-by-step explanation:

1/6 * 4=2/3

2/3 * 2=   1  1/3

Answer:

Both, you and your friend, are correct.

Step-by-step explanation:

5 P 5 = 5!

A shortcut I learned is that in the permutation equation nPn when n is the same on both sides, it is equal to if you used factorial, n!.

Answer:

Answer:

1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation: because the equation is in the format f(x)= mx+b and mx represents slope and b represents y. 2/9x is the slope so 1/3 is the y intercept (can i have brainliest)

10 - c/2...

2 will be below 10-c

Answer:

126

Step-by-step explanation:

This is a tricky question!

So we can quickly find the area of the whole circle through πr². That would be around 144π (remember, we are solving in terms of π, so we dont use 3.14)

Then, the circles. Through πr², we can find that the area of one circle is 9π. And since there are two circles, we can add these together to become 18π.

Now we subtract 144π from 18π to find the shaded area. 126π, and since we are doing this in the terms of π, we don't need to include that.