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
evablogger [386]
3 years ago
11

Simplify this problem: (2a-5)^2

Mathematics
1 answer:
USPshnik [31]3 years ago
3 0
Whenever you square something, you mulitiply it by itself.
So (2a-5)^2= (2a-5)(2a-5)= 4a^2-10a-10a+25=4a^2-20a+25
Hope this helps!
You might be interested in
The costs of different weights of onions sold at a grocery store are shown in the table
lana66690 [7]

Answer:

<h2>Independent variable: Weight of Onions.</h2><h2>Dependent variable: Total Cost.</h2>

Step-by-step explanation:

The given table is about the weight of onions in pounds and the total cost.

If you think this through, you would notice that the total cost depends on the number of pounds of onions. That means the independent variable is Weight of Onions and the dependent variable is the Total Cost.

So, to put it in a sentence: The weight of onions determines the total cost.

8 0
3 years ago
Read 2 more answers
"is it possible to have more than one set of seven numbers having a mean of 50 and a standard deviation of 0?"
12345 [234]
The answer is 1.6. How??
8 0
4 years ago
I really need this thank you
a_sh-v [17]

slope intercept form: y=mx+b

y=2x-3

slope is also m

b is the y-intercept

answer:

slope is 2

y-intercept is -3

8 0
3 years ago
PLS HELP:Find the side length, C.<br> Round to the nearest tenth.
mestny [16]

Answer:

\huge\boxed{c = 14.9}

Step-by-step explanation:

Using Cosine Rule

c^2 = a^2 + b^2 -2abCosC

Where a = 11 , b = 7 and C = 110

c^2 = (11)^2+(7)^2-2(11)(7)Cos 110

c^2 = 121+49-154 (-0.34)\\c^2 = 170+52.7\\c^2 = 222.7

Taking sqrt on both sides

c = 14.9

6 0
4 years ago
If alpha beta are the roots of the equation
Vikki [24]

Answer:

Step-by-step explanation:

Hello, I believe that we can consider a different from 0.

By definition of the roots we can write.

ax^2+bx+c=a(x-\alpha)(x-\beta)=a(x^2-(\alpha + \beta)x+\alpha \cdot \beta)\\\\\text{So we can say that:}\\\\\alpha + \beta = \dfrac{-b}{a}\\\\\alpha \cdot \beta=\dfrac{c}{a}\\\\\text{So the expected quadratic equation is}\\\\(x+\dfrac{b}{a})(x-\dfrac{c}{a})=0\\\\ \Large \boxed{\sf \bf \ (ax+b)(ax-c)=0 \ }

Thank you

8 0
3 years ago
Other questions:
  • A rectangular piece of sheet metal has a length that is 88 in. less than twice the width. A square piece 44 in. on a side is cut
    7·1 answer
  • Help me, please!
    14·2 answers
  • Vincent propses an idea to the student government to install a basket hoop along with a court marked with all the shooting lines
    13·1 answer
  • The ratio of length to width on a rectangle is
    6·1 answer
  • A glass prism on a chandelier is 80 millimeters long. A base of the prism is an equilateral triangle with side lengths of 9 mill
    13·1 answer
  • Plsss help me!!!Mei graphed the locations of several places in her town on the coordinate plane shown below. There is also
    14·1 answer
  • If the sales tax on 150 is 7.50, what is the percent of sales tax?​
    15·1 answer
  • Help me plz plz I really need help!!!
    10·1 answer
  • Which equation represents this statement?
    10·2 answers
  • The LCM is the product of1. factors on the left side.2. factors on the right side.3. all of the factors.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!