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STALIN [3.7K]
2 years ago
9

Classrooms on one side of the drama building are all numbered with consecutive odd integers. If the first room, the room with th

e smallest classroom number, on this
side of the building is numbered d, write an expression ind for the sum of the first five classroom numbers in a row. Then simplify this expression
The sum of the first five classroom numbers in a row is
Mathematics
1 answer:
adelina 88 [10]2 years ago
6 0

Consecutive odd integers skip even numbers, so when you're describing these in general, there's a 2-number gap between them, such as 5, 7, 9, etc.

first room number:         d

second room number:   d+2

third room number:        d+2+2 = d+4

fourth room number:      d+4+2 = d+6

fifth room number:          d+8+2 = d+8

So the sum will be:

  d + d+2 + d+4 + d+6 + d+8 = 5d+20

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I need help with this someone very smart at math this algebra 2
Mrac [35]

Answer:

value if a =

\frac{5}{4}

Step-by-step explanation:

here's the solution :-

=》

\frac{ 2(\sqrt{m})  {}^{3} }{ \sqrt[4]{m} }

=》

\frac{2(m {}^{ \frac{1}{2}} ) {}^{3} }{ {m}^{ \frac{1}{4} } }

=》

\frac{2 {m}^{ \frac{3}{2} }} { {m}^{ \frac{1}{4} } }

=》

2m {}^{ \frac{3}{2}  -  \frac{1}{4} }

=》

2m {}^{ \frac{6 - 1}{4} }

=》

2m {}^{ \frac{5}{4} }

so, a = 5/4

6 0
2 years ago
Please Answer Quick!!
Alexeev081 [22]

Answer:

2 2/3 as an improper fraction is 8/3

8/3 × 1/4 = 2/3

6 0
3 years ago
Find cosØ if sinØ=-12/13 and tanØ&gt;0.<br><br> A) -5/12<br> B) -5/13<br> C) 12/5<br> D) -13/12
mestny [16]

Answer:

-5/13

Step-by-step explanation:

sin theta = opp / hyp

sin theta = -12 /13

we can find the adj side by using the pythagorean theorem

adj^2 + opp ^2 = hyp^2

adj^2 +(-12)^2 = 13^2

adj^2 +144 =169

adj^2 = 169-144

adj^2 = 25

Taking the square root of each side

adj = ±5

We know that it has to be negative since it is in the third quad

adj = -5

cos theta = adj / hyp

cos theta = -5/13

8 0
3 years ago
Read 2 more answers
2. What is the mode for the data set 13, 11, 10, 12, 14, 9,
Mashutka [201]

Answer:

11

Step-by-step explanation:

mode is the number that is most frequent

11

5 0
2 years ago
Read 2 more answers
Hi could you please help? Write 2.96 as a mixed number or fraction in simplest form. My family is trying to help me but we're ba
klemol [59]

as a fraction it would be 74 over 25 in one way there might be other ways


3 0
3 years ago
Read 2 more answers
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