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3 years ago

7 points!!!!

Mathematics

1 answer:

AnnZ [28]3 years ago

4 0

Answer:

A 1/6

Step-by-step explanation:

i got this because if you add all the marbles it is 12 so the real percentage would be 3/12 but they divided it by 2 to get 1/6

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What is the 51st term of the arithmetic sequence 29,9,-11

valina [46]

Answer:

-951

Step-by-step explanation:

an=a1+(n−1)d

\begin{gathered}29 = a_1 + (1-1)d\\29 = a_1\\9 = 29 + (2-1)d\\9 = 29 + d\\d = -20\\a_n = 29 -20 (n-1)\\a_n = 29 - 20n+20\\a_n = -20n + 49\\\\a_51 = -20(51) + 49 = -951\end{gathered}29=a1+(1−1)d29=a19=29+(2−1)d9=29+dd=−20an=29−20(n−1)an=29−20n+20an=−20n+49a51=−20(51)+49=−951

6 0

3 years ago

A man in a tower spots three hot air balloons flying at the same altitude. Balloon

anyanavicka [17]

Answer:

90/4= 12.9

1*3/4= 0.75

Step-by-step explanation:

8 0

3 years ago

Can someone prove me with the answer please

hammer [34]

Answer:

X = 1

Step-by-step explanation:

When x = 1, gx is equal to 3 in both graphs. The input of x = 1 produces the same output value for both functions.

7 0

3 years ago

Point a is at (-7,-7) and m is at (-6,-1) what are the coordinates of point b

AlekseyPX

Answer:

The coordinates of point b are (-5,5).

Step-by-step explanation:

Given:

Point a is at (-7,-7) and m is at (-6,-1).

So, to find the coordinates of point b.

Let a (-7,-7) be $(x_{1},y_{1})$ , m (-6,-1) and b $(x_{2} ,y_{2})$ .

Now, putting the formula to get the coordinates:

$m=\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2}$

⇒ $(-6,-1)=\frac{-7+x_{2}}{2} , \frac{-7+y_{2}}{2}$

So, here we will make two equations to find the value of $x_{2} andy_{2}$ :

$-6=\frac{-7+x_{2}}{2}$

multiplying both sides by 2

⇒ $-12=-7+x_{2}$

⇒ $-5=x_{2}$

And, now same method for getting the value of $y_{2}$ .

$-1=\frac{-7+y_{2}}{2}$

multiplying both sides by 2

⇒ $-2=-7+y_{2}$

⇒ $5=y_{2}$ .

The value of $(x_{2} ,y_{2})$ = $(-5,5)$ .

Therefore, the coordinates of point b are (-5,5).

4 0

4 years ago

Adam riese developed the signs + and - as mathematical operations what is the title of the work that introduced them?

Phoenix [80]

The title of the work introduced is Rechnung nach der lenge/auff den Linien und Feder.

<h3>What are mathematical operations?</h3>

In mathematics, an operation is a function that takes zero or more input values to a well-defined output value.

Adam Riese developed the signs + and - as mathematical operations and the title of the work introduced is Rechnung nach der lenge/auff den Linien und Feder.

Learn more about operations on:

brainly.com/question/20408113

#SPJ1

7 0

3 years ago