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
ElenaW [278]
2 years ago
13

PlzplPzlpzlzpzl .......i beg u do this easy question for me ....​

Mathematics
1 answer:
jeka942 years ago
5 0

Answer:  -p^2-(q+r)^2

Work Shown:

I'm assuming your teacher wants you to factor as much as possible.

-p^2-q^2-r^2-2qr\\\\-p^2-q^2-2qr-r^2\\\\-p^2-(q^2+2qr+r^2)\\\\-p^2-(q+r)^2\\\\

In the last step, I used the rule that (a+b)^2 = a^2+2ab+b^2

We cannot factor any further. If the first term was p^2 instead of -p^2, then we could use the difference of squares factoring rule.

You might be interested in
Find the area of a parallelogram with base 15 yards and height of 21 2/3
VARVARA [1.3K]
To find the area of a parallelogram, you use the area formula:

Area = Base * Height

Then, all you have to do is substitute in your known integers and solve. Therefore:

Area = 15 * 21 2/3

When we multiply these two numbers, we get 

Area = 325 square yards or yardsyards^{2}
4 0
2 years ago
21. answer the question by using the information in the picture​
Dominik [7]

Answer:

D

Step-by-step explanation:

Volume of a cone is (1/3)πr^2h.

You have the necessary info, so just plug it in.  (1/3)*π*(3/2)^2*(9/4)

8 0
3 years ago
Which impact did new consumer goods have on the lives of Texans in the 1920's?
nadezda [96]

Answer:

Consumption in the 1920s The prosperity of the 1920s led to new patterns of consumption, or purchasing consumer goods like radios, cars, vacuums, beauty products or clothing. The expansion of credit in the 1920s allowed for the sale of more consumer goods and put automobiles within reach of average Americans.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Although cities encourage carpooling to reduce traffic congestion, most vehicles carry only one person. For example, 64% of vehi
ira [324]

Answer:

a) 0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

b) 0.996 is the probability that more than half of the vehicles  carry just one person.    

Step-by-step explanation:

We are given the following information:

A) Binomial distribution

We treat vehicle on road with one passenger as a success.

P(success) = 64% = 0.64

Then the number of vehicles follows a binomial distribution, where

P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}

where n is the total number of observations, x is the number of success, p is the probability of success.

Now, we are given n = 10

We have to evaluate:

P(x \geq 6) = P(x =6) +...+ P(x = 10) \\= \binom{10}{6}(0.64)^6(1-0.64)^4 +...+ \binom{10}{10}(0.64)^{10}(1-0.79)^0\\=0.7291

0.7291 is the probability that more than half out of 10 vehicles carry just 1 person.

B) By normal approximation

Sample size, n = 92

p = 0.64

\mu = np = 92(0.64) = 58.88

\sigma = \sqrt{np(1-p)} = \sqrt{92(0.64)(1-0.64)} = 4.60

We have to evaluate the probability that more than 47 cars carry just one person.

P(x \geq 47)

After continuity correction, we will evaluate

P( x \geq 46.5) = P( z > \displaystyle\frac{46.5 - 58.88}{4.60}) = P(z > -2.6913)

= 1 - P(z \leq -2.6913)

Calculation the value from standard normal z table, we have,  

P(x > 46.5) = 1 - 0.004 = 0.996 = 99.6\%

0.996 is the probability that more than half out of 92 vehicles carry just one person.

5 0
2 years ago
What is the length of the line TR​
8090 [49]

Answer:

15

Step-by-step explanation:

If the other triangle is part of the problem the triangle increased by 2.5

2.5 * 6 is 15

so 15 is the length of TR

3 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the principles of buoyancy, write an expression for the location of the waterline on the hull as a function of the weig
    6·1 answer
  • Marvin says that all rhombuses are squares. Aretha says that all squares are rhombuses. who is correct?
    15·1 answer
  • How many cups of flour do we put in the mix
    5·1 answer
  • Difinition of sample space
    14·1 answer
  • Sketch a picture a shoe box with length 12 inches height 6 inches and width 6 inches
    11·1 answer
  • I need help with this​
    9·1 answer
  • For the equation - 3x + 2 = 8 and the inequality
    11·1 answer
  • List the first 5 multiples and find all the factors of 7 prime or composite
    12·1 answer
  • What should be the order of polynomial
    13·2 answers
  • Which of these polynomial functions has the largest second derivative at X=0?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!