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
zloy xaker [14]
4 years ago
13

Evaluate the expression described below if the number is 4.

Mathematics
1 answer:
Archy [21]4 years ago
5 0
<em>x</em>² - x

<em>x</em> = 4

4² - 4 

16 - 4 = 12

Hope this helps!
You might be interested in
Anyone please !!!!!!
IgorLugansk [536]

Answer:

4

Step-by-step explanation:

Lets start by plugging in our (a) value

a^2 + 5a + 4

(-5)^2 + 5(-5) +4

25 - 25 + 4

0 + 4

4 is your final answer!

5 0
3 years ago
Solve the system by the<br> substitution method.<br> 7x + y = -6<br> 7x - 3y = 18
Elodia [21]

Answer:

Stdivise 7 aep-by-step explanation:

7 0
4 years ago
Read 2 more answers
A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula
kvasek [131]

Answer:

The sample proportion of printers used in small business is:

\hat{p}=\frac{25}{70}=0.3571

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }

Where:

z_{\frac{0.05}{2}}=1.96 is the critical value at 0.05 significance level

\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }

         0.3571 \pm 0.1122

         \left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)

         \left(0.245,0.469 \right)

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)



7 0
3 years ago
Find the slope of all line from the equation 8x - 8y =16​
Artemon [7]

Answer:

slope = 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

8x - 8y = 16 ( subtract 8x from both sides )

- 8y = - 8x + 16 ( divide all terms by - 8 )

y = x - 2 ← in slope- intercept form

with slope m = 1

4 0
3 years ago
Choose the statement beloe that lists the sides in order from Least to Greatest.
kolezko [41]

Option A: SU, TU, ST is the right answer

Step-by-step explanation:

In a triangle

  • The largest side and the largest angle are opposite to each other
  • The shortest side and the shortest angle are opposite to each other.

So using the above axioms we can observe the triangle.

  1. The largest angle is m∠U = 80° so the side opposite to it is the largest i.e. ST is the largest
  2. The smallest angle is m∠T = 25° so the shortest side is SU
  3. The third side will be the middle side as the angle ∠S is greater than 25° and less than 80°

So the sides in order from least to greatest are: SU, TU, ST

Hence,

Option A: SU, TU, ST is the right answer

Keywords: Geometry, Triangles

Learn more about triangles at:

  • brainly.com/question/10941043
  • brainly.com/question/10978510

#LearnwithBrainly

5 0
3 years ago
Other questions:
  • you have a large container of olive oil. You have used 22 1/2 quarts of oil. Twenty- five percent of the oil remain. How many qu
    6·1 answer
  • Can someone please help me ASAP
    13·1 answer
  • The first stage of a rocket burns 28 seconds longer than the second stage. If the total burning time for both stages is 152 seco
    10·1 answer
  • 50 POINTS!! Pleasee helppppp!!! A scientific journal recently reported that there are currently 2400 black rhinos in the world t
    10·1 answer
  • How do you convert 7.85 meter to centimeters
    15·2 answers
  • What graph shows percentages?
    14·2 answers
  • Help please!!!!! this is a test!!!!
    9·2 answers
  • All of the following represent three multiplied by six except:<br> 3x6<br> 3.6<br> 316)<br> 3:6
    6·1 answer
  • 3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis
    12·1 answer
  • Eastimate 921 + 1,256 + 117 by first rounding each number to the nearst hundred
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!