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Ostrovityanka [42]
3 years ago
6

What is the answer to 2(8 + 7) - 3(5)

Mathematics
1 answer:
Olenka [21]3 years ago
3 0

Answer:15

Step-by-step explanation:

2(8+7) -3(5)

2(15)-15

30-15

=15

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HELP!!!!!!!!!!!!!!! IT'S TIMED!!!!!!!!!!!!!!!!
Dmitry_Shevchenko [17]

Answer:

The answer is A

Step-by-step explanation:

There are two solutions.

Slope = 17

y - intercept = (0,1)

The two solutions is

(0,1) and (1,18)

So he is right

8 0
2 years ago
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How does the y-intercept appear in these three representations: table,equation,and graph?
devlian [24]
In a table it's  EXAMPLE: Cars/Drivers the cars is x and the drivers is y(y-intercept). In an equation, EXAMPLE using y=mx+b the b is the y-int., and in a graph it is (x,y) the y being the y-int.
6 0
3 years ago
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five consecutive terms of an arithmetic sequence have a sum of 40. The product of the middle and the two end terms is 224. Find
ratelena [41]
Let the five terms be: a, a + d, a + 2d, a + 3d, a + 4d, then
a + a + d + a + 2d + a + 3d + a + 4d = 5a + 15d = 40
i.e. a + 3d = 8
Also, (a + 2d)(a + 3d)(a + 4d) = 224
(a + 3d - d)(a + 3d)(a + 3d + d) = 224
(8 - d)(8)(8 + d) = 224
(8 - d)(8 + d) = 224/8 = 28
64 - d^2 = 28
d^2 = 64 - 28 = 36
d = sqrt(36) = 6
But a + 3d = 8
a + 3(6) = 8
a = 8 - 18 = -10

Therefore, the term of the sequence is: -10, -10 + 6, -10 + 2(6), -10 + 3(6), -10 + 4(6)
= -10, -4, -10 + 12, -10 + 18, -10 + 24
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4 0
3 years ago
What is -5/8 times -8 plus 10
Kay [80]
The answer will be 15..
8 0
3 years ago
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maria [59]

Considering that the data is only noted and not changed, this is an example of an observational study.

<h3>What are observational and experimental studies?</h3>

  • Experimental study: In an experimental study, there is an intervention in a sample, and it's effect is studied.
  • Observational study: In an observational study, the sample is just analyzed, without any intervention.

In this problem, the data, which is the number of miles traveled, is only analyzed, no interventions are made, hence this is an example of an observational study.

More can be learned about observational studies at brainly.com/question/24321224

#SPJ1

6 0
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