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bekas [8.4K]
3 years ago
13

I’m confused on this. Do I just copy the words or what?

Mathematics
1 answer:
Ksju [112]3 years ago
6 0

1. 3x-5>-8

2. 13+5n<30

1. Three times a number is 3x, -5 for five less than, and >for greater than, and -8 is opposite 8

On number 2 there may be a line under the less than symbol signifying that it can be less than or equal to 30

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Can someone be so freaking awesome and help me out with the correct answer please :( !?!?!?!?!???!!! 30 points!!!
Sindrei [870]

\bf 7~~,~~\stackrel{7+6}{13}~~,~~\stackrel{13+6}{19}~~,~~\stackrel{19+6}{25}\qquad \impliedby \qquad \textit{common difference "d" is 6}

we know all it's doing is adding 6 over again to each term to get the next one, so then

\bf \stackrel{\textit{Recursive Formula}}{\stackrel{\textit{nth term}}{f(n)}~~=~~\stackrel{\textit{the term before it}}{f(n-1)}~~~~\stackrel{\textit{plus 6}}{+~~~~6}}

now for the explicit one

\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\[-0.5em] \hrulefill\\ a_1=7\\ d=6 \end{cases} \\\\\\ a_n=7+(n-1)6\implies a_n=7+6n-6\implies \stackrel{\textit{Explicit Formula}}{\stackrel{f(n)}{a_n}=6n+1} \\\\\\ therefore\qquad \qquad f(10)=6(10)+1\implies f(10)=61

3 0
3 years ago
Which binomials is a factor of 16x^2 + 40xy + 25y^2?
Valentin [98]
Answer: (4x + 5y)^2

Factor the expression. 
6 0
3 years ago
Plsss helppppppp:))))))
Alinara [238K]

Answer:

5

Step-by-step explanation:

because it is asking what minus 9 is equal to -4

5 0
3 years ago
Read 2 more answers
Please help me i dont know what the answer is ??
Assoli18 [71]
To answer this, we need to use the rules of geometric shapes. An equilateral triangle is equiangular, meaning all its angle measures are equal. Since all triangles' angles add up to 180°, simply divide 180 by three to find the angle measure of each angle:
\frac{180}{3} = 60
Therefore, the measure of the triangle's angle is 60°

Next, we know that a characteristic of a rectangle is that each angle must be a right angle, or an angle with a measure of 90°.

Now, all we have to do is use the sum of all the angle measures to figure out the missing piece:
90=x+60+12 \\ 90=x+72 \\ 90-72=(x+72)-72 \\ 18=x

The missing angle measure, angle x, equals 18°.

Hope this helps!
7 0
3 years ago
29/40 converted into a decimal
myrzilka [38]

Answer:

The answer is 0.725 Please mark me brainliest xd

6 0
3 years ago
Read 2 more answers
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