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Vikki [24]
3 years ago
6

Two lines, A and B, are represented by the equations given below:

Mathematics
2 answers:
lions [1.4K]3 years ago
8 0

Answer:

It is (6,4)

Step-by-step explanation:

Misha Larkins [42]3 years ago
7 0

Answer: no solutions

Step-by-step explanation:

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The graph represents the balance on Harrison’s car loan in the months since purchasing the car.
dimulka [17.4K]

Answer:

Step-by-step explanation:

I think it's the loan balances decreases $500 per month because every month it starts decreasing down by 500

4 0
4 years ago
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On a basketball court the free throw line is marked off geometrically this area of the court is called a key and is topped
Alenkinab [10]

Step-by-step explanation:

Arc length formula is

s = rx

where x is radinas.

A semi circle has a radian measure of

\pi

The radius is half of the diameter, 12 so the radius is

12 \times  \frac{1}{2}  = 6

So the arc length is

6 \times \pi = 6\pi

Area of semi circle is

\frac{1}{2} \pi {r}^{2}

where r is the radius.

\frac{1}{2} \pi6 {}^{2}

\frac{1}{2} 36\pi

18\pi

3 0
3 years ago
Hans will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $51.96 and costs an a
AlexFokin [52]
X- the miles Hans is driving
51,96+0,12*x=45,96+0,14*x
51,96-45,96=0,14x-0,12x
6=0,02x
x=6:0,02
x=300 miles
5 0
4 years ago
A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a period of time and then switch
zysi [14]

Answer:

t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.714 -0}{\frac{1.38}{\sqrt{7}}}=-1.369

df=n-1=7-1=6

p_v =2*P(t_{(6)}

We see that the p value is higher than the ususal significance levels commonly used of 1% or 5% so then we can conclude that we FAIL to reject the null hypothesis, and there is not enough evidence to conclude that we have a different response between the two drugs

Step-by-step explanation:

We have the following info given by the problem

Subject  1 2 3 4 5 6 7

Drug A  6 3 4 5 7 1 4

Drug B  5 1 5 5 5 2 2

x=value for drug A , y = value for drug B

x: 6 3 4 5 7 1 4  

y: 5 1 5 5 5 2 2

We want to verify if the mean response differs between the two drugs then  the system of hypothesis for this case are:

Null hypothesis: \mu_y- \mu_x = 0

Alternative hypothesis: \mu_y -\mu_x \neq 0

We can begin calculating the difference d_i=y_i-x_i and we obtain this:

d: -1, -2, 1, 0, -2, 1, -2

Now we can calculate the mean difference  

\bar d= \frac{\sum_{i=1}^n d_i}{n}=-0.714

Now we can find the the standard deviation for the differences, and we got:

s_d =\sqrt{\frac{\sum_{i=1}^n (d_i -\bar d)^2}{n-1}}=1.38

And now we can calculate the statistic given by :

t=\frac{\bar d -0}{\frac{s_d}{\sqrt{n}}}=\frac{-0.714 -0}{\frac{1.38}{\sqrt{7}}}=-1.369

Now we can find the degrees of freedom given by:

df=n-1=7-1=6

We can calculate the p value, since we have a two tailed test the p value is given by:

p_v =2*P(t_{(6)}

We see that the p value is higher than the ususal significance levels commonly used of 1% or 5% so then we can conclude that we FAIL to reject the null hypothesis, and there is not enough evidence to conclude that we have a different response between the two drugs

7 0
4 years ago
Simplify -3(y+5)+3(2y+6)
likoan [24]
-3(y + 5) + 3(2y + 6)
-3y - 15 + 6y + 18
3y + 3

Answer:
3y + 3

Hope this helps.
5 0
4 years ago
Read 2 more answers
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