1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Eddi Din [679]
2 years ago
11

3) The perimeter of a triangle is 28x-7. 2 of the sides are 5X-3 and 12x+8. What is the third

Mathematics
1 answer:
Anna [14]2 years ago
6 0

Answer:

11x-2

Step-by-step explanation:

u subtract the two sides from the perimeter

You might be interested in
According to the University of Nevada Center for Logistics Management, 6% of all mer-
Fudgin [204]

Answer:

a) The point estimate of the proportion of items returned for the population of

sales transactions at the Houston store = 12/80 = 0.15

b) The 95% confidence interval for the proportion of returns at the Houston store = [0.0718 < p < 0.2282].

c) Yes.

We set an hypothesis and construct a test statistics. The test statistics result gives us:

Z calculated  = 2.2545, and this gives us the p-value = 0.0121. We assumed 95% confident interval. Hence, the level of significance (α) = 5%. Conclusively, since the p-value ==> 0.0121 is less than (α) = 5%, the test is significant. Hence, the proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

Step-by-step explanation:

a) Point estimate of the proportion = number of returned items/ total items sold = 12/80 = 0.15.

b) By formula of confident interval:

CI(95%) = p ± Z*\sqrt{\frac{p*(1-p)}{n} }  =  0.15 \pm 1.96 *\sqrt{\frac{0.15*(1-0.15)}{80} },

CI(95%) = [0.0718 < p < 0.2282]

c) The hypothesis:

H_{0}: The proportion of returns at the Houston store is not significantly different from the returns  for the nation as a whole.

H_{a}: The proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

The test statistics:

Z = \frac{\hat{p} - p_{0}}{\sqrt{\frac{p*(1-p)}{n} }}, where p_{0} is the proportion of nation returns.

Z calculated  = 2.2545, and this gives us the p-value = 0.0121. We assumed 95% confident interval. Hence, the level of significance (α) = 5%. Conclusively, since the p-value ==> 0.0121 is less than (α) = 5%, the test is significant. Hence, the proportion of returns at the Houston store is significantly different from the returns  for the nation as a whole.

6 0
3 years ago
Given the inequality below:<br><br> 3x-y&gt;4<br><br> Which is the graph of the solution set?
OLga [1]

Answer:

A shaded region below a dashed line (y <3x-4)

Step-by-step explanation:

For linear inequalities, we have shaded regions below or above a dashed or solid or continuous line represented by an inequality.

Their graphs are called region graphs. Those regions are only enclosed ones if before the sign of inequality it is included both variables. Like x²+y²<1, |x+y|<1, etc.

In this case what we have here is an open region, as the graph below shows.

3x-y>4 =-y>4-3x∴y<3x-4

Setting a value for x

3x-4=0

3x=4

3x/3=4/3

x=4/3 (slope)

(4/3,0)

6 0
3 years ago
What's the area?<br><br> C= pi/2 <br><br> A=____
kompoz [17]
The answer is actually 1.571
6 0
3 years ago
Help fast pls
Goshia [24]

Answer:

The function is polynomial with the following characteristics

Degree: 5 and leading coefficient: -13.

Step-by-step explanation:

You can see the explanation in the image.

I will like to mention that the question is a little obscure, and the explanation applies for the following function:

f(x) = -13x^{5} -4x^{4} -1

You always have to choose the highest power of x, in order to find the leading term.

6 0
3 years ago
Tahari is shopping for a new car. She is making her decision based on brand, color, and style. She can choose from 4 brands, 5 c
mash [69]
Are there choices? I would say 4x1x3, or 12 options after the color is chosen.
7 0
3 years ago
Read 3 more answers
Other questions:
  • What point he plot to show how far he runs in 8 minutes and 12 minutes?​
    10·1 answer
  • How do I solve this problem step by step mesningbwjat will I do first <br> -17+43+(-5)
    9·1 answer
  • Why is the measure of angle a in the triangle enter your answer in the box
    9·1 answer
  • Write the prime factorization of 675 using exponent
    9·1 answer
  • of a group of 200 workers, 15 are chosen to participate in a survey about the number of miles they drive to work each week
    6·2 answers
  • HELP PLZ 50 POINTS FOR REWARD
    6·2 answers
  • Which of the following best describes the slope of the line below?
    14·1 answer
  • Find cos in the triangle <br>There are 2 pictures
    7·1 answer
  • What is the volume of a rectangular prism with the base of 15 inches, width of 3 inches, and height of 8 inches
    13·1 answer
  • Translate into an algebraic expression, find the number if 10% of it is m
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!