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
Crazy boy [7]
3 years ago
10

Write an expression that is equivalent to (3+14)+27

Mathematics
1 answer:
Julli [10]3 years ago
3 0

Answer:

44

Step-by-step explanation:

1. (3+14)=17

2. 17 + 27= 44

You might be interested in
HELP I WILL MAEK BEAINLIST PLEASE
wolverine [178]

Answer:

260,548668 or 260.55 round to the nearest hundreds  

Step-by-step explanation:

Area of the trapezoid:

[(major base + minor base)x height]/2

[(22 + 12) x 12]/2 = 204 cm^2

radius = diameter / 2 = 12 / 2 = 6 cm

Area of a semicircle

(radius^2 x pi)/2 = (6^2 x pi)/2 = 56.548668 cm^2

total area = 204 + 56,548668 = 260,548668 cm^2

6 0
3 years ago
Suppose a 90% confidence interval for the mean salary of college graduates in a town in Mississippi is given by [$38,737, $50,46
JulsSmile [24]

Answer:

a. The point estimate was of $44,600.

b. The sample size was of 16.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The margin of error is the difference between the two bounds, divided by 2.

a. What is the point estimate of the mean salary for all college graduates in this town?

Mean of the bounds, so:

(38737+50463)/2 = 44600.

The point estimate was of $44,600.

b. Determine the sample size used for the analysis.

First we need to find the margin of error, so:

M = \frac{50463-38737}{2} = 5863

Relating the margin of error with the sample size:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1 - 0.9}{2} = 0.05

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.05 = 0.95, so Z = 1.64.

Now, find the margin of error M as such

M = z\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

For this problem, we have that \sigma = 14300, M = 5863. So

M = z\frac{\sigma}{\sqrt{n}}

5863 = 1.645\frac{14300}{\sqrt{n}}

5863\sqrt{n} = 1.645*14300

\sqrt{n} = \frac{1.645*14300}{5863}

(\sqrt{n})^2 = (\frac{1.645*14300}{5863})^2

n = 16

The sample size was of 16.

7 0
3 years ago
If 63,000 = 6.3 x 10n, then what is n​
tatyana61 [14]

Answer:

n is a neutron , the symbol n stands for neutron

4 0
3 years ago
Read 2 more answers
Last year, Bob used 10 bottles of shampoo and 8 bottles of conditioner. His sister, Kayla, used 7 bottles of shampoo and 6 bottl
REY [17]
The lower ratio would be bob and that dude need to slow down the hair stuff

10 to 8 ratio is about 8.00
7 to 6 ratio is about 9.00

im not to good at math so dubble cheek just in case hope i could help tho

rip my spelling
6 0
3 years ago
Pls help me<br><br> macth the words with the defonitions\ math
Orlov [11]

Answer:

Do what the 6th grader said

Step-by-step explanation:

They smart

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the measure of angle x in the figure below<br> a) 15°<br> b) 25°<br> c) 30°<br> d) 60°
    14·1 answer
  • there is a line whose y-intercept is 0 and whose slope is 5 what is its equation in slope intercept form?
    14·1 answer
  • PLEASE HELP!!
    13·1 answer
  • Factor completely. y2 - 12y + 32 A. (y + 4)(y + 8) B. (y - 4)(y - 8) C. (y + 18)(y + 2) D. (y - 18)(y - 2)
    13·2 answers
  • The following are weights (in kg) of 12 persons:
    6·1 answer
  • Whats the common denominator of 3/8 and 2/5?
    14·1 answer
  • 1/3 + a = 5/4 a = ( )<br><br><br><br> Help plz!
    15·2 answers
  • Find the lcm for 96 and 24
    8·2 answers
  • (HELP PLS) A triangle has the coordinates
    5·1 answer
  • What is the angle of rotation of the image?<br> A. 60°<br> B. 90<br> C. 120<br> D. 180
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!