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
Eduardwww [97]
3 years ago
9

An operation is defined as m•n=2m-nEvaluate (2•1)•1 please answer will mark brainly​

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

evaluated (2•1)•1

Step-by-step explanation:

the operation: m • n = 2m - n

do what is in "( )" first

2 times 1 = 2

that becomes

2 • 1

2

You might be interested in
HELP PLEASE!!! I need help with this question!
AlexFokin [52]

Answer:

\large\boxed{PS=10\sqrt5}

Step-by-step explanation:

ΔPQS, ΔRQP and ΔRPS are similar (AA). Therefore the sides are in proportion:

\dfrac{QR}{RP}=\dfrac{RP}{RS}

We have:

QR=5,\ RS=20

Substitute:

\dfrac{5}{RP}=\dfrc{RP}{20}                <em>cross multiply</em>

RP^2=(5)(20)\\\\RP^2=100\to RP=\sqrt{100}\\\\RP=10

Use the Pythagorean theorem:

PS^2=PR^2+RS^2

Substitute:

PS^2=10^2+20^2\\\\PS^2=100+400\\\\PS^2=500\to PS=\sqrt{500}\\\\PS=\sqrt{100\cdot5}\\\\PS=\sqrt{100}\cdot\sqrt5\\\\PS=10\sqrt5

6 0
3 years ago
Solve the inequality. 1/6w≥2.5
Viefleur [7K]

\dfrac{1}{6}w\geq2.5\qquad\text{multiply both sides by 6}\\\\\not6^1\cdot\dfrac{1}{\not6_1}w\geq6\cdot2.5\\\\\boxed{w\geq15}

7 0
3 years ago
Read 2 more answers
Can someone help me on this problem
blagie [28]

Answer:

Use the Quadratic formula

3 0
2 years ago
Use complete sentences to explain why |x| + 2 &gt; |x|. <br> Someone please help me
IgorC [24]
The left side will always have 2 more than the right so it will akways be true
8 0
3 years ago
Read 2 more answers
I need help with number 21 please!
seraphim [82]
The coordinate point is 8
6 0
3 years ago
Other questions:
  • What is the length of side x? (possibly use similar triangles)
    14·1 answer
  • What is 9/10 divided by 3/12
    9·1 answer
  • Harold plans to buy a $95 Father's Day present for his father, and the holiday
    14·2 answers
  • The sum of a number and its reciprocal is 6.41. What is the number?
    5·1 answer
  • A rectangular prism has a length of 3 1/2 inches a width of 5 inches height of 1 1/2 inches what is the volume for the prism?
    12·1 answer
  • When a number is decreased by 47%, the result is 20. What is the original number to the nearest tenth?
    8·1 answer
  • HELP ME ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • Help please?
    13·2 answers
  • Simplify (-8q3,4s2)2 = ?<br> A. -649-1654<br> B. 6496854<br> C. -6496854<br> D. 6499-1684
    13·1 answer
  • What is the value of this??
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!