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Musya8 [376]
3 years ago
11

Help me with my math

Mathematics
1 answer:
Burka [1]3 years ago
3 0
18 just add both of them money 15.50+12.50=28
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Question in link. Please help :(
attashe74 [19]

Answer:

The median

Step-by-step explanation:

It uses all the added numbers as one

6 0
3 years ago
Please help me with this one
sp2606 [1]
I think 50 oz less
hope it helps

5 0
3 years ago
. Complete the missing steps in the paragraph proof of Theorem 3-8.
Crank
To solve for the missing steps, let's rewrite first the problem.

Given:

In a plane, line m is perpendicular to line t or  m⟂t
                  line n is perpendicular to line t  or  n⟂t


Required:

Prove that line m and n are parallel lines


Solution:

We know that line t is the transversal of the lines m and n.

With reference to the figure above, 

∠ 2 and ∠ 6 are right angles by definition of <u>perpendicular lines</u>. This states that if two lines are perpendicular with each other, they intersect at right angles.

So ∠ 2 ≅ ∠ 6. Since <u>corresponding</u> angles are congruent. 

Therefore, line m and line n are parallel lines.
<span>
<em>ANSWERS: perpendicular lines, corresponding</em>

</span>
8 0
3 years ago
A research team is testing whether a fuel aditive increases a car's gas mileage. The maker of the additive claims that the addit
Thepotemich [5.8K]

Answer:

Yes  there is sufficient evidence to  reject the company's evidence

Step-by-step explanation:

From the question we are told that  

   The sample size is  n =  25

    The mean is  \= x = 5.3 \ mpg

     The standard deviation is  \sigma = 1.8 \  mpg

    The z-score is  z = -1.94

The null hypothesis is  H_o : \mu = 6 \ mpg

The alternative hypothesis is  H_a :  \mu \ne 6

 Generally the p-value is mathematically evaluated as  

           p-value   =  2 * P( Z

From the z table  the area under the normal curve to the left corresponding to    -1.94  is

         P( Z

=>  p-value   =  2 * 0.02619

=>  p-value   =  0.052

Let assume the level of significance is  \alpha = 0.05

 Hence the  p-value > \alpha this mean that

   The  decision rule is  

Fail to reject the null hypothesis

The conclusion is

 There is sufficient evidence to  reject the company's evidence

 

5 0
3 years ago
Amber is starting a garden. She plants 2 flowers the first month. The next month, she plans three times more flowers (6 flowers)
Artist 52 [7]
This is a geometric progression problem. We can the general formula that can tell us how many flowers would be planted each month.
Let's write the terms that we know and see if we can find the pattern:
&#10;\begin{tabular}{lll}&#10;Month & Number of flowers planted & Different form            \\&#10;1     & 2                         & 2\cdot3^0 \\&#10;2     & 6                         & 2\cdot3^1 \\&#10;3     & 18                        & 2\cdot3^2 \\&#10;4     & 54                        & 2\cdot3^3&#10;\end{tabular}&#10;\end{table}
The patern here is obvious. Let's write it down:
N=2\cdot3^{n-1}
This formula gives us a number of flowers planted in the n-th month.
6 0
2 years ago
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