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bixtya [17]
3 years ago
6

Write a positive or negative integer that represents the situation.

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Answer:

+17

Step-by-step explanation:

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halfway through the fourth year , harrys collection contains 400 pennies. study the graph provided at the beginning of this acti
elixir [45]

Answer:

The coordinates of the point is (3,5 , 400)

Step-by-step explanation:

The question is incomplete as the graph is not given in the question. Lets complete the question first. I have attached the graph related to this question below.

We can see in the graph that x-axis represents the years while the y-axis represents the pennies collected by Harry.

We have to find the coordinates of the point where he is able to collect 400 pennies.

As y-axis represents pennies, and the point to be found is at 400 pennies, so the y-coordinates of the point is 400.

Harry collects 400 pennies when he is halfway through 4rth year, which means that he has been collecting for:

3 years + Half of 4rth year = 3.5 years.

As x-axis represents the year and the point to be found is at 3.5 years, so the x-coordinate of the point is 3.5.

So, the coordinates of the point is (3,5 , 400)

This point can be seen in the second graph

8 0
3 years ago
Determine the degree of the polynomial:<br><br> 7m^6n^5
polet [3.4K]

9514 1404 393

Answer:

  11

Step-by-step explanation:

The degree of the given monomial is the sum of the exponents of the variables.

  m has degree 6

  n has degree 5

The degree of the monomial is 6+5 = 11.

6 0
3 years ago
Find s25 for 3 + 7 + 11 + 15
alexdok [17]
The common difference is d = 4 because we add 4 to each term to get the next one.

The starting term is a1 = 3

The nth term of this arithmetic sequence is 
an = a1 + d(n-1)
an = 3 + 4(n-1)
an = 3 + 4n-4
an = 4n - 1

Plug in n = 25 to find the 25th term
an = 4n - 1
a25 = 4*25 - 1
a25 = 100 - 1
a25 = 99

So we're summing the series : 3+7+11+15+...+99

We could write out all the terms and add them all up. That's a lot more work than needed though. Luckily we have a handy formula to make things a lot better
The sum of the first n terms is Sn. The formula for Sn is
Sn = n*(a1+an)/2

Plug in n = 25 to get
Sn = n*(a1+an)/2
S25 = 25*(a1+a25)/2

Then plug in a1 = 3 and a25 = 99. Then compute to simplify

S25 = 25*(a1+a25)/2
S25 = 25*(3+99)/2
S25 = 25*(102)/2
S25 = 2550/2
S25 = 1275

The final answer is 1275
8 0
3 years ago
Work out the area of Triangle ABC
Tema [17]

The main idea is using the Pythagorean formula to find the length of line segment DB.

Alr so you use the formula A^2 + B^2 = C^2

C^2 is already given and is 2\sqrt{5}

and A^2 is 3\sqrt{2}

So using algebraic rules you'll get B as:

\sqrt{2}

Now using the formula: \frac{1}{2} b * h, you can find the area of tri ABD and CBD which would be 3 and 1 so add them up and you get 4!

5 0
3 years ago
Simplify 5(8d+ 6 <br>A. 13d + 6 <br>B.130d+ 11 <br>C.40d+ 6<br>D. 40d+ 30​
11Alexandr11 [23.1K]
The answer is 7x so Im guessing it’s either C or B
5 0
3 years ago
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