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2 years ago

The vertices of a right triangle are (6, 2), (–2, –4), and (–2, y).

Mathematics

2 answers:

aksik [14]2 years ago

7 0

The answer should be C. 2
:P hope this helps you

Alchen [17]2 years ago

3 0

The value of y is C. 2.

(6, 2), (-2, -4), (-2, 2)

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Dan and Mario went to a sandwich shop to buy sandwiches for their group of friends. Dan bought 2 tuna and 5 vegetarian sandwiche

Lesechka [4]

2t+5v=37 and 4t+3v=39

Solve the first for t

t=18.5-2.5v and use this t in the second equation...

4(18.5-2.5v)+3v=39

74-10v+3v=39

-7v=-35

v=$5.00 and since t=18.5-2.5v

t=$6.00

So tuna sandwiches cost $6.00 and vegetarian sandwiches cost $5.00.

3 0

2 years ago

Read 2 more answers

Please help me with these two math problems that I do not quite understand. This is urgent!

g100num [7]

Answer:

1) $a_{n}=a_{1}+(n-1)d\Rightarrow a_{n}=-1-2(n-1)\\a_{2}=-1-2(2-1)\Rightarrow a_{2}=-3\\a_{3}=-1-2(3-1)\Rightarrow a_{3}=-5\\(...)\\a_{10}=-1-2(10-1)=-19$

2) $a_{10}=4+8(10-1)\Rightarrow a_{10}=76$

Step-by-step explanation:

1) To write an Arithmetic Sequence, as an Explicit Term, is to write a general formula to find any term for this sequence following this pattern:

$a_{n}=a_{1}+d(n-1)\Rightarrow \left\{\begin{matrix}a_{n}=n^{th}\: term\\a_1=1st \: term \\d=\: difference\\n=n^{th}\, term\end{matrix}\right.$

<em>"Write an explicit formula for each explicit formula A(n)=-1+(n-1)(-2)"</em>

This isn't quite clear. So, assuming you meant

Write an explicit formula for each term of this sequence A(n)=-1+(n-1)(-2)

As this A(n)=-1+(n-1)(-2) is already an Explicit Formula, since it is given the first term $a_{1}=-1$ the common difference $d=-2$ let's find some terms of this Sequence through this Explicit Formula:

$a_{n}=a_{1}+(n-1)d\Rightarrow a_{n}=-1-2(n-1)\\a_{2}=-1-2(2-1)\Rightarrow a_{2}=-3\\a_{3}=-1-2(3-1)\Rightarrow a_{3}=-5\\(...)\\a_{10}=-1-2(10-1)=-19$

2) $(4,12,20,28, ..)$ In this Arithmetic Sequence the common difference is 8, the first term value is 4.

Then, just plug in the first term and the common difference into the explicit formula:

$a_{10}=4+8(10-1)\Rightarrow a_{10}=76$

6 0

2 years ago

There are 18 boys in a class there are w fewer boys than girls how many students are there in the class

Pachacha [2.7K]

The Number of boys in the class is: 18

Let's call "g" to the number of girls in the class.

The problem says that there is "w" fewer boys than girls, so we have:

g-w=18

Then, the number of girls in the class is:

g=18+w

Let's call "x" to the total number of studens in the class:

x=g+18

When we substitute g=18+w into x=g+18, we obtain:

x= (18+w)+18

The total number of studens in the class is:

x=w+36

6 0

2 years ago

How may weeks are there in a year?

Zanzabum

Answer:

There are exactly 52.142857142857 weeks in the year 2019. This is equivalent to 52 weeks and 1 extra day, since there are 365 total days in 2019. Most years have 365 days, but a leap year has 366 days. That adds up to 52 weeks (where each week is exactly 7 days) PLUS 1 or 2 additional days.There are 52 complete weeks in a year. The year has 365 days, leaving one extra day. A leap year has 366 days, adding a second extra day. This makes 52 1/7 weeks in a normal year and 52 2/7 weeks in a leap year..

7 0

2 years ago

Read 2 more answers

In a recent year,the weather was pretty cloudy 2/5 of the days. Assuming there are 365 days in a year, how many days were partly

Mariana [72]

We can solve this pretty easily using a proportion where x equals the number of cloudy days in the year:

2/5 = x/365
Now cross multiply:
730 = 5x
And finally divide both aides by five:
146 = x
So 146 days of the year were cloudy.

Hope I helped, and let me know if you have any questions!

6 0

2 years ago