Mary opened a savings account with a $700 deposit and a simple interest rate of 4.9%. If there are no other deposits or withdrawals, how much money is in the account after 7.5 years?

Answer:

Quadratic function, None of the above, and ?

Step-by-step explanation:

So remember what I told you about earlier, lets look at that first one.

So we can see that x is increasing by 1 and y is decreasing by 3...And then it increases by 3! And after that another 9! Well, that seems like it is reversing, as it changes from decreasing to increasing in y coordinates. So knowing that is reverses from decreasing to increasing in y, it must be a quadratic function!

Next we have a increase in 1 and a decrease by 17...then 12...then 7 in y. This isnt decreasing by a constant amount like a linear function. It doesnt seem like a obvious exponential decrease either, and it isnt reversing like a quadratic function does. I am going to use something called logarthms, which you don't even need to think about yet, just to make sure that it is not an exponent.  Althouhg the difference in the exponent was only 0.0018, it is a differnece. So this must be a none of the above, sicne none of the functions apply. (If this is incorrect, and it is exponential, then the test is wrong. While the method I used is something found in mid algebra 2, it is still a method of finding a exponent of a number.)

Now we finish up with a change in x of 1, and a change of y by...-11, -11, -11!

Well, what do you think this is, thinking back on what I have said so far.

It is a constant change of -11y and 1x. Remember, a CONSTANT CHANGE.

What do you think it is :)

If you cannot figure it out, let me know in comments.

Hope this is helps you!

Answer:

2:5    3:15     18:90    12:60

Step-by-step explanation:

Answer:

Area of the triangle is 8ft^3

Step-by-step explanation:

b=8

h=2

8x2=16

16 divided by 2=8

A=8

Hope this helps

Answer:

37.68

Step-by-step explanation:

12 times 3.14 = 37.68

Answer:

It is A because if you add -13 and 28 together you would get 15

Step-by-step explanation:

Give me brainliest

Answer:

r(t) = 75 kg - (4.5 kg/wk)w

Step-by-step explanation:

Let r(t) represent the amount of rice remaining after w weeks.

Then:

r(t) = 75 kg - (4.5 kg/wk)w

please mark as brainliest

Answer:

w=10 and this means that 10 weeks after the rice was bought, 30 kilograms of rice remain.

Step-by-step explanation:

r(w)=75-4.5w is an equation for this function so I'll be using this. First insert r(w)= 30 into the equation.

75-4.5w=30

75-75-4.5w=30-75

-4.5w=-45

-4.5w/-4.5 = -45/ -4.5

w=10

Apologies if the explanation isn't thorough, I'll glady provide more details if necessary.

Answer:

x-int is 24/5 y-int is 8 and x value when y is 3 is 3

Step-by-step explanation:

So for the x int, we can plug in 0 for y, because in a x intercept, the y is zero.

5x=24

x=24/5

for the y int, we can plug in 0 for x, because in a y intercept, the x is zero.

3y=24

y=3

now when y is 3, we can just plug that in.

5x + 3 times 3 = 24

5x+9=24

5x=15

x=3

hope this helps

Answer:

2.49*10^6 m

Step-by-step explanation:

Answer: A. 19x + 2

Step-by-step explanation:

Answer:

part A is 512 square ft and part B is 3 cans

Answer:

6

Step-by-step explanation:

(4 1/2) / (3/4)=6

hope this help

Answer:

We can see from the table that 1 km is exactly half way between 2 and 3 laps. So it will take 2.5 laps to run 1 km.

Since it takes Angel 2 minutes to run 1 lap, she will take

2.5 laps1 km⋅2 minutes1 lap=5 minutes1 km.

So it takes Angel 5 minutes to run 1 km.

Since it takes Jayden 5 minutes to runs 3 laps, she runs 1 lap in 53 minutes. Thus, it takes Jayden

2.5 laps1 km⋅5 minutes3 laps=52⋅53 minutes/km=256 minutes/km=416 minutes/km.

So it takes Jayden 416 minutes to run 1 km.

Step-by-step explanation:

i actually dont know what the answer-answer is but i think this will help alot.

Answer:

Step-by-step explanation:

Distance traveled in 2 minutes by Angel = 2/5 kilo meter

Distance traveled in 1 minute by Angel = [tex]\frac{2}{5}[/tex] ÷ 2

                                                                 [tex]=\frac{2}{5}*\frac{1}{2}[/tex]

                                                                 = 1/5 kilometer

Answer:

70 - 79

Step-by-step explanation:

The mode interval is the interval with the largest frequency.

From the heights of the bars we see that this is 70 - 79

Answer: yes

Step-by-step explanation:

Answer:

Yep, that's correct

Step-by-step explanation:

Answer:  [tex]y = -3x + 13[/tex]

Step-by-step explanation:

[tex]y - 4 = -3(x-3)[/tex]

[tex]y - 4 = -3x + 9[/tex]

[tex]y = -3x + 13[/tex]

Answer:

Step-by-step explanation:

y-4=-3(x-3)

y-4=-3x+9

+4

y=-3x+13

Answer:

A dot plot generally shows the data for a specific value, it is just like how you would need each individual's score. A histogram shows data for a range of values. The best one to use here is a histogram.

Step-by-step explanation:

Answer:   The answer is C

Step-by-step explanation:   Histograms show ranges and the table shows ranges and scores.  A dot plot would not fi this situation as well as histograms because histograms are best when it comes to ranges.

Answer:

34.04 cm²

Step-by-step explanation:

Formula for a trapezoid:

a + b ÷ 2 × height

Substitute the values:

11.7 + 3.1 = 14.8

14.8 ÷ 2 = 7.4

7.4 × 4.6 = 34.04

The answer is 34.04 cm²

Answer:

i've done this before but i forgot how i explained it, but it's the first one

Answer:

7(3+5)=7x3+5=26+30=56

Step-by-step explanation:

7(3+5)=56

7x3=21+5=26+30=56

Answer:

7(3+5)= 7×3 + 7×5 = 21 + 35

Step-by-step explanation:

Answer:

volume = 143.1 m^3

Step-by-step explanation:

here's your solution

=> volume of cuboid = area of base * height

=> volume = 53*2.7

=> volume = 143.1 m^3

hope it helps

Answer is below. Look at the explanation to understand my answer.

To find the volume, you simply multiply all the lengths up to get your answer.

The formula is for finding the volume of a rectangular prism is: L × W × H. Normally there is 3 lengths, but there is only 2. We can still solve by using the same formula, instead of L × W × H, the formula will be Base Area × Height or BA × H.

Here is a breakdown: Solving for a Cuboid (rectangular prism) is easy; all you need to do is multiply all the units.  

With that being said...

53 times 2.7 is 143.1 m²

Therefore, 143.1 is the volume

Let me know of questions or concerns about my answer.

Formulas:

V = L × W × H (Length × Width × Height)

V = BA × H (Base Area × Height)

Answer: B. 65

Step-by-step explanation:

Choose any point on the number line with natural numbers for both coordinates. For this case, let's use (4, 260).

To find the constant of proportionality, divide the Y coordinate by the X coordinate. 260 ÷ 4 = 65. While optional, it is reccomended to use two points to confirm your answer. Let's do that with (2, 130). Since 130 ÷ 2 = 65, this confirms that the constant of proportionality is 65.

Hi, there! I'd love to help you out!

We know complementary angles add up to 90 degrees.

Let's say our first angle is x:

x = first angle

It tells us the other angle is 68 degrees more. So we are just adding 68 to our other angle:

x = first angle

x + 68 = second angle

Now add the two and set it equal to 90 degrees:

x + x + 68 = 90

2x + 68 = 90

-68 -68

2x = 22

/2 /2

x = 11 first angle

x + 68 = 11 +68 = 79 degrees second angle

I hope this explanation helps you . (by the way is there a picture?)

Answer:

2 2/5

Step-by-step explanation:

12/1 times 1/4 = 3/1

3/1 times 4/5 = 12/5 = 2 2/5