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
Aleonysh [2.5K]
3 years ago
9

Hey please help me please help please

Mathematics
1 answer:
Airida [17]3 years ago
4 0

1.

a) metres to centimetres :

multiply length by 100

b) metres to millimetres:

multiply length by 1000

c) kilograms to grams:

multiply the mass value by 1000

d) litres to millilitres :

multiply volume by 1000

2.

a) 3 m = 3× 100 = 300 cm

b) 28 cm = 28 × 10 = 280 mm

c) 2.4 km = 2.4 × 1000

= 24 × 10^-1 × 10^3

= 24 × 10^2 =2400 m

d) 485 mm =485 / 10

= 485 / 10 ^1

= 485 × 10 ^-1

= 48.5 cm

e) 35 cm = 35 / 100

= 35 /10^2

= 35 × 10 ^ -2

= 0.35 m

f) 2.4 m = 2.4 / 1000

= 24 × 10 ^-1 / 10^3

= 24 × 10^-1 × 10 ^-3

= 24 × 10 ^ -4

= 0.0024 km

g) 2495 mm = 2495 /1000

= 2495 /10^ 3

= 2495 × 10 ^-3

=2.495 m

You might be interested in
A politician estimates that 61% of his constituents will vote for him in the coming election. How many constituents are required
Katyanochek1 [597]

Using the z-distribution, as we are working with a proportion, it is found that 1016 constituents are required.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The estimate is of \pi = 0.61, while the margin of error is of M = 0.03, hence solving for n we find the minimum sample size.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.96\sqrt{\frac{0.61(0.39)}{n}}

0.03\sqrt{n} = 1.96\sqrt{0.61(0.39)}

\sqrt{n} = \frac{1.96\sqrt{0.61(0.39)}}{0.03}

(\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.61(0.39)}}{0.03}\right)^2

n = 1015.5

Rounding up, 1016 constituents are required.

More can be learned about the z-distribution at brainly.com/question/25890103

8 0
1 year ago
Estimate by rounding the first number to the nearest ten and the second number to the nearest hundred. 19 Х 307 II ? Х ? = ?​
AnnyKZ [126]

Answer:

6,200

Step-by-step explanation:

19-20

307-310

310 x 20= 6,200 or 20 x 310= 6,200

8 0
3 years ago
Slader the internal revenue service claims it takes an average of 3.7 hours to complete a 1040 tax form, assuming th4e time to c
Vitek1552 [10]

Answer:

0.9953, 3.3629<x<4.0371

Step-by-step explanation:

Given that slader the internal revenue service claims it takes an average of 3.7 hours to complete a 1040 tax form, assuming th4e time to complete the form is normally distributed witha standard devait of the 30 minutes:

If X represents the time to complete then

X is N(3.7, 0.5) (we convert into uniform units in hours)

a) percent of people would you expect to complete the form in less than 5 hours

=100*P(x

b) P(b<x<c) = 0.50

we find that here

c = 4.0371 and

b = 3.3629

Interval would be

(3.3629, 4.0371)

6 0
3 years ago
Which line segment is a diameter of circle L?
eduard
It seem like there are information missing on the question posted. Let me answer this question with all I know. So here is what I believe the answer is, <span>GK¯¯¯¯¯¯</span>

Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.
7 0
3 years ago
Read 2 more answers
The graph of y=x^3 is transformed as shown below?
Anastasy [175]
Y= -2x^3 is the answer
Hope this helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • The coordinates of the vertices of triangle ABC are A(-1,3), B(1,2) and C(-3,-1).
    7·1 answer
  • What is the common between 2,8, 14, 20, 26
    15·1 answer
  • Solve the equation -1/3m-7=5
    14·1 answer
  • Jenny is going to paint the wall in her bedroom her while measures 25 feet long by 15 feet wide she plans to buy enough paint to
    7·1 answer
  • The drama club is selling T-shirts and caps to raise money for a spring trip. The caps sell for $5.00 each, and the T-shirts sel
    12·1 answer
  • Write an inequality for the situaions below and solve:
    13·1 answer
  • The perimeter of a rectangle is 150. The length of the rectangle is 9 more than the width. Find the width.
    7·1 answer
  • The perimeter of an equilateral triangle is given as 15x +21.find the greatest common factor
    7·1 answer
  • How much money do you need to deposit monthly into a college fund for
    5·1 answer
  • Which equation represents a line which is perpendicular to the line y = 5x - 8?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!