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vesna_86 [32]
3 years ago
6

PLS HELP WILL MARK BRAINLIEST

Mathematics
1 answer:
Blizzard [7]3 years ago
4 0

Answer:

looks like 73

Step-by-step explanation:

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Find the 66th term of the arithmetic sequence -28, -45, -62, ...
Zolol [24]

To find:

  • 66th term of the arithmetic sequence -28, -45, -62, ...

~

Solution:

  • First term (a) = -28
  • Comman difference (d) = -45 - (-28) = - 17
  • n = 66

~

Using formula:

  • {\sf {\pmb {a_{n}  = a + (n -1) × d}}}

~

Substituting values in the formula:

~

\longrightarrow\sf  a_{66}  = -28 + (66 - 1) × -17

\longrightarrow\sf  a_{66} = -28 + (65)(-17)

\longrightarrow\sf  a_{66} = -28 - 1105

{\longrightarrow \sf  {a_{66} = -1133}}

~

Hence,

  • <u>66th term</u> of the arithmetic sequence is -<u>1133</u>.
7 0
2 years ago
A triangle has sides that are 3, 7, and squareroot 57. Is the triangle a right triangle?
tigry1 [53]

Answer:

my answer is no because for a right angle triangle the sum of the squares of the other two sides is equal to the square of the longest side

3²+7²=9+49=58

(√57)²=57

57≠58 it's not a right angle triangle

assume the sides to be a,b and c

a=3 b=7 c=√57

by Pythagoras theorem

a²+b²=c²

3²+7²=√57²

but 58≠57

hope it's clear

5 0
3 years ago
The perimeter of a rectangle below is 146 units find value of x
zhenek [66]
You are told that the perimeter is 146 units. You look at the diagram and add up all the sides, which tells you the total perimeter. You then equate 146 and the total perimeter, as you know both these equal the perimeter. Then solve for x by using algebra.

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13. Dr. Jones took out a loan for a new medical instrument cleaning system. The interest paid on the loan was $650. The loan was
Ivan
Given that the loan is paid for 24 months or 2 years and the interest rate is 2.75% which is $650. In order for us to find the amount that Dr. Jones borrowed, let us put it this way. ? x 0.0275 = 650. So we divide 650 by 0.0275 and the answer is 23,636.36. Hope this answers your question.
7 0
3 years ago
Order these values from smallest (A) to largest (F)
Flauer [41]
We need the values to answer this question
6 0
3 years ago
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