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
lawyer [7]
2 years ago
11

What’s an equivalent expression to 5(2x-1)

Mathematics
1 answer:
netineya [11]2 years ago
6 0

Answer:

10x-5

Step-by-step explanation:

Because u can simplify the equation into a shorter one by simplifying the numbers in paranthesis with 5 and 5 times 2 equal 10 as 5 times 1 equal 5

You might be interested in
1. Find the 90% Cl for the population mean if sample
Elden [556K]

Answer:

The answer is below

Step-by-step explanation:

1)

mean (μ) = 12, SD(σ) = 2.3, sample size (n) = 65

Given that the confidence level (c) = 90% = 0.9

α = 1 - c = 0.1

α/2 = 0.05

The z score of α/2 is the same as the z score of 0.45 (0.5 - 0.05) which is equal to 1.65

The margin of error (E) is given as:

E=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} } =1.65*\frac{2.3}{\sqrt{65} } =0.47

The confidence interval = μ ± E = 12 ± 0.47 = (11.53, 12.47)

2)

mean (μ) = 23, SD(σ) = 12, sample size (n) = 45

Given that the confidence level (c) = 88% = 0.88

α = 1 - c = 0.12

α/2 = 0.06

The z score of α/2 is the same as the z score of 0.44 (0.5 - 0.06) which is equal to 1.56

The margin of error (E) is given as:

E=Z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} } =1.56*\frac{12}{\sqrt{45} } =2.8

The confidence interval = μ ± E = 23 ± 2.8 = (22.2, 25.8)

8 0
3 years ago
For the polynomial below, find F(-3)<br><br> F(-3)= -4x^2+3x-1
Elodia [21]
f(-3)=-4\cdot(-3)^2+3\cdot(-3)-1=-4\cdot9-9-1=-36-10=-46
4 0
3 years ago
Is the number 1.13 greater than, less than or equal to 1
Fantom [35]
1.13 is greater than 1
3 0
2 years ago
On Triangle ABC, Angle A measures 30 degrees, Angle B measures 90 degrees, and Angle C measures 60 degrees. List the sides of Tr
Mazyrski [523]

Answer:

A=30  B=90  C=60

Step-by-step explanation:

A=30 C=60  B=90

8 0
3 years ago
I please solve and explain
lisov135 [29]

Answer:

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Pls help me guys! This is super hard
    6·2 answers
  • Whatnis the greatest common factor of 7 and 19
    13·1 answer
  • Edison, Pedro and Karl ran a 5K race. Pedro finished two minutes before Karl. Karl finished one minute before Edison. Therefore,
    14·1 answer
  • What is 2/3 to the power of 2
    5·1 answer
  • HELP ME PLEASE I APPRECIATE IT
    6·1 answer
  • If u have 40 dollars which is 8 times more money than Jefferson has how much money does Jefferson have
    6·1 answer
  • PLS PLS HELP SO
    12·2 answers
  • Choose all pairs of points that are reflections of each other across both axes.
    12·1 answer
  • Help, i was out sick for most of the week before and didnt learn this materal, i really need help
    11·1 answer
  • Solve using quadratic formula pls show work​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!