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
Lera25 [3.4K]
3 years ago
8

This is for today help pls!!!

Mathematics
1 answer:
ryzh [129]3 years ago
6 0

Answer:

Perimeter=25 units

Area= 43 units^2

Step-by-step explanation:

one side = 5 units so perimeter is 5x5=25

split into 5 equal triangles

base =5, height =3.44, formula for area=(base)(height)(0.5)

area of each triangle =(5)(3.44)(0.5)=8.6

entire area=5(8.6)=43

You might be interested in
Which value of a would make the following expression completely factored?
Margarita [4]

Answer:

when it ur first question and u make it hard

Step-by-step explanation:

Make it easy btw this is your teacher

6 0
3 years ago
Thirty percent of all customers who enter a department store will make a purchase. Suppose that 6 customers enter the store and
torisob [31]

Answer:

Step-by-step explanation:

Let's use binomial distribution, because we are interested in find the total number of successes in a sequence of n independent experiments.

In probability, a binomial distribution is used in a Bernoulli process. That is, a sequence of experiments of n independent  trials, each asking a dichotomous question, that means it only has two answers. One answer is a success (probability: p) and the other is a failure (probability: 1-p). In this case, every customer who enters in the store is the experiment. If they make a purchase is a success event, taking into account that every purchase decision has to be independent.

P(X=x) = C(n,x)p^{x} (1-p)^{n-x}

x= total number of success

n= total number of experiments

p=probability of success on an indivual trial

C(n,x) = \frac{n!}{x!(n-x)!}

a) x= 5 ------> customers that make a purchase

n= 6 ------> total customers

p=0.3

p(X=5)= C(6,5)(0.3)^{5} (1-0.3)^{6-5} \\p(X=5)=0.102

b) At least 3 customers make a purchase. x ≥ 3

P(X\geq 3)=1-P (X=0)-P(X=1)-P(X=2)\\P(X\geq 3)=1-(C(6,0)(0.3^{0})(0.7)^{6}) - (C(6,1)(0.3^{1})(0.7)^{5}) - (C(6,2)(0.3^{2})(0.7)^{4})\\ P(X\geq 3) = 1-0.11765-0.30253-0.32414\\P(X\geq3)= 0.2557

c) At most 2 customers make a purchase. x ≤ 2

P(X\leq2) = P(X=0) + P(X=1) + P(X=2)\\P(X\leq2) = (C(6,0)(0.3^{0})(0.7)^{6}) + (C(6,1)(0.3^{1})(0.7)^{5}) + (C(6,2)(0.3^{2})(0.7)^{4})\\P(X\leq2) = 0.11765-0.30253-0.32414\\P(X\leq2)=0.7443

d)At least 1 customer makes a purchase. x ≥ 1

P(X\geq 1)=1-P(X=0)\\P(X\geq 1)= 1-C(0,6)(0.3)^{0}(0.7)^{6} \\P(X\geq 1)= 1-0.11765 = 0.8824

e)They must be kind to customers, always willing to help and give information about products clearly and honestly.

Have enough inventory and offer promotions for the purchase of more than one product

Have an agile payment system that avoids rows and delays in purchases.

6 0
3 years ago
a contractor uses the expression 7(x+3) to find the lenght,in feet,of chain that he needs for a certain project. Part A the cont
Salsk061 [2.6K]
Given that x is the number of chains;

7(4+3) = 7 * 7 = 49 feet
4 0
3 years ago
30 is 20% of what number?​
Nataly [62]
30 is 20% of 150. Hope this pic helps

6 0
3 years ago
Phil's garage charges $50 for towing and $40 per hour t o fix a car. Cliff's Cars charges $60 for towing and $38 per hour to fix
Volgvan
You have to add them both phils 4 times and add cliffs 5 times to get the sameanswer witch it 250
5 0
3 years ago
Other questions:
  • There are two water tanks, Tank #1 fills into Tank #2.
    6·1 answer
  • A car can travel 300 miles in the same amount of time it takes a bus to travel 180 miles. if the rate of the bus is 20 miles per
    12·1 answer
  • 250,000 people visited a theme park in one year 15% of the people visited in april and 40% of the people visited in august how m
    8·1 answer
  • Just answer plz no step-by-step
    13·1 answer
  • Explain how an estimate helps you place the decimal point when multiplying 3.9 × 5.3
    10·2 answers
  • Please Help, need this in detail. Simplify 4 (x + 7) using the distributive property
    15·2 answers
  • write an equation of a line that is perpendicular to the given line and that passes through the given point (4,-6); m=3/5
    12·1 answer
  • HELP PLEASE :) * giving brainliest*
    7·2 answers
  • 5. This diagram of a baseball field is composed of a square, a semicircle, and a quarter
    5·1 answer
  • 8. The high school graduating class of 2000 was 260 students. Five years later, the graduating class was 320 students. By 2010,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!