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
polet [3.4K]
4 years ago
15

Need help with this work sheet

Mathematics
1 answer:
Mariana [72]4 years ago
4 0
1. 5.62
2.298.56
3.5.20
4.91.49
You might be interested in
What is the goal of a proof by contradiction?
kifflom [539]

Answer:

B. The contradiction of the statement is proven false, so the original

statement is therefore proven true.

Step-by-step explanation:

We assume the opposite and then get to a point where we get a false statement.   That proves that the the opposite of the opposite ( what we originally wanted to prove) is true.

6 0
3 years ago
Read 2 more answers
A quiz consists of 20 multiple-choice questions, each with 5 possible answers. for someone who makes random guesses for all of t
blondinia [14]
N = 20, the number of questions
p = 1/5 = 0.2, the probability of making a correct guess
q = 1 - p = 0.8, the probability of making an incorrect guess.
Expected success  = 60% or 6 of 10.

From the binomial distribution,
P(6 of 10) = ₁₀C₆ p⁶q⁴
                 = 210*0.2⁶*0.8⁴ = 0.0055

Answer: 0.0055

7 0
4 years ago
Solve 2x2 8x - 12 = 0 by completing the square. show step-by-step solution
malfutka [58]
Group x terms
(2x^2+8x)-12=0
undistribute 2
2(x^2+4x)-12=0
take 1/2 of 4 and square it, add negative and positive of it insde (2^2=4)
2(x^2+4x+4-4)-12=0
factor perfect square
2((x+2)^2-4)-12=0
distribute
2(x+2)^2-8-12=0
2(x+2)^2-20=0
add 20 to both sides
2(x+2)^2=20
divide both sides by 2
(x+2)^2=10
sqrt both sides, remember to take positive and negative root
x+2=+/-√10
minus 2 both sides


x=-2+√10 and -2-√10
8 0
4 years ago
HURRY!!!:) Find the sum of (7x+4) and the opposite of 7x.
jeka57 [31]

Answer:

  • 4

Step-by-step explanation:

<u>Sum of (7x+4) and the opposite of 7x:</u>

  • 7x + 4 + (-7x) =
  • 7x + 4 - 7x =
  • 4
7 0
3 years ago
Find the reciprocal of. ​
alexandr402 [8]

Answer:

a) 3/1 that is 3

b) 8/7

c) the mixed fraction is converted into simple fraction: 3*2+2/3 = 8/3

therefore the reciprocal is 3/8

d) 1/5

e) the mixed fraction is converted into simple fraction: 6*6+1/6 = 37/6

therefore the reciprocal is 6/37.

plz mark my ans as branlliest and like it upvote it

plz follow me and in return i wil also follow you.

4 0
3 years ago
Read 2 more answers
Other questions:
  • When Arjun makes hot cocoa, he adds 20ml of chocolate syrup for every 3 ounces of hot water. Arjun's brother, Eli, adds 45mL of
    12·1 answer
  • I really need help please.
    5·1 answer
  • 12 of a number b increased by 7
    11·1 answer
  • Find the domain of the following graph:
    8·1 answer
  • Give the degree of each polynomial
    8·2 answers
  • Which is bigger? 92^7 or 3^81? Hint: can you write 9^27 as an exponential expression with a base of 3?​
    9·1 answer
  • Solve for d.
    12·1 answer
  • -<br> Factor Completely : 6w2 – 66w – 72
    8·2 answers
  • Help me plz AND PLZ NO LINKS
    12·1 answer
  • Fin find the 31st term in -3, -5, -7, -9
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!