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____ [38]
3 years ago
13

Hey! I hope everyone is doing great so far :) i'll appreciate some help, ty!

Mathematics
2 answers:
ioda3 years ago
4 0
0.2 (y+2) = 0.2y + 0.2(2)
= 0.2y + 0.4
zhenek [66]3 years ago
4 0

Answer:

The answer will be: 0.2y+0.4

Step-by-step explanation:

(0.2y)(y+2)

(0.2y)(y)+(0.2y)(2)

Therefore, you'll get: 0.2y+0.4

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Simplify (4x − 6) + (5x + 1)
Basile [38]
9x-5, I guess, not sure, but I'm combining like terms. Hope it's right.
5 0
3 years ago
Read 2 more answers
Em 1 Graph the system of equations. { x−y=6 ,4x+y=4
muminat

Graphing the system of equations is shown in figure attached.

Solution set is (2,-4). The lines will intersect at (2,-4)

Step-by-step explanation:

We need to graph the system of equations. x-y=6 ,4x+y=4

First we will find value of x and y

Let:

x-y=6\,\,eq(1)\\4x+y=4\,\,eq(2)

Add eq(1) and eq(2)

x-y=6\,\,\\4x+y=4\,\,\\------\\5x=10\\x=10/5\\x=2

Putting value of x in eq(1) and finding y

x-y=6\\2-y=6\\-y=6-2\\-y=4\\y=-4

So, y=-4

Graphing the system of equations is shown in figure attached.

Solution set is (2,-4). The lines will intersect at (2,-4)

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/9045597
  • brainly.com/question/3739260
  • brainly.com/question/13168205

#learnwithBrainly

8 0
3 years ago
52 – 4 &gt; – 29 AND – 12 + 6 &gt; 2<br> Solve and give answer in interval notation
BlackZzzverrR [31]

Answer:

wait huh?im confused lol

Step-by-step explanation:

6 0
3 years ago
A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds. Find the te
vredina [299]

Answer:

b. 2.333

Step-by-step explanation:

Test if the mean transaction time exceeds 60 seconds.

At the null hypothesis, we test if the mean transaction time is of 60 seconds, that is:

H_0: \mu = 60

At the alternate hypothesis, we test if it exceeds, that is:

H_1: \mu > 60

The test statistic is:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, s is the standard deviation of the sample and n is the size of the sample.

60 is tested at the null hypothesis:

This means that \mu = 60

A sample of 16 ATM transactions shows a mean transaction time of 67 seconds with a standard deviation of 12 seconds.

This means that n = 16, X = 67, s = 12

Value of the test statistic:

t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}

t = \frac{67 - 60}{\frac{12}{\sqrt{16}}}

t = \frac{7}{3}

t = 2.333

Thus, the correct answer is given by option b.

5 0
2 years ago
How do you use a exponent to indicate a math problem
Dominik [7]
A quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression (e.g. 3 in 23 = 2 × 2 × 2)
8 0
3 years ago
Read 2 more answers
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