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
Afina-wow [57]
2 years ago
10

NEED HELP ASAP PLEASE!!!

Mathematics
2 answers:
harina [27]2 years ago
5 0

Answer:

1,2,7

9,3,-2

0,5,5

Step-by-step explanation:

Each row and column equal 10

kolbaska11 [484]2 years ago
5 0
1,2,7// 9,3,-2// 055
You might be interested in
Two sides of a triangle have measures of 6 inches and 12 inches. Which measure could be the length of the third side?
kondaur [170]

Answer: Yes an isosceles triangle has at least two sides that have equal measures.

3 0
3 years ago
Calculate the angular momentum of a particle of mass m moving with constant velocity v about origin o.
Ymorist [56]
The formula for this   ( horizontal circular orbit with the origin at the center)  is
   L = mvr

5 0
3 years ago
Please answer this question with explantion.<br> -35 × -98
beks73 [17]
A positive 3430. because two negatives that are being multiplied by eachother are automatically positive.
3 0
3 years ago
The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amo
Aloiza [94]

Answer:

a)\ \ \bar x_m-\bar x_f=67.03\\\\b)\ \ E=15.7416\\\\c)\ \ CI=[51.2884, \ 82.7716]

Step-by-step explanation:

a. -Given that:

n_m=41\ , \ \sigma_m=33, \bar x_m=135.67\\\\n_f=37. \ \ ,\sigma_f=20, \ \ \bar x_f=68.64

#The point estimator of the difference between the population mean expenditure for males and the population mean expenditure for females is calculated as:

\bar x_m-\bar x_f\\\\\therefore \bigtriangleup\bar x=135.67-68.64\\\\=67.03

Hence, the pointer is estimator 67.03

b. The standard error of the point estimator,\bar x_m-\bar x_f is calculated by the following following:

\sigma_{\bar x_m-\bar x_f}=\sqrt{\frac{\sigma_m^2}{n_m}+\frac{\sigma_f^2}{n_f}}

-And the margin of error, E at a 99% confidence can be calculated as:

E=z_{\alpha/2}\times \sigma_{\bar x_m-\bar x_f}\\\\\\=z_{0.005}\times\sqrt{\frac{\sigma_m^2}{n_m}+\frac{\sigma_f^2}{n_f}}\\\\\\=2.575\times \sqrt{\frac{33^2}{41}+\frac{20^2}{37}}\\\\\\=15.7416

Hence, the margin of error is 15.7416

c. The estimator confidence interval is calculated using the following formula:

\bar x_m-\bar x_f\ \pm z_{\alpha/2}\sqrt{\frac{\sigma_m^2}{n_m}+\frac{\sigma_f^2}{n_f}}

#We substitute to solve for the confidence interval using the standard deviation and sample size values in  a above:

CI=\bar x_m-\bar x_f\ \pm z_{\alpha/2}\sqrt{\frac{\sigma_m^2}{n_m}+\frac{\sigma_f^2}{n_f}}\\\\=(135.67-68.64)\pm 15.7416\\\\=67.03\pm 15.7416\\\\=[51.2884, \ 82.7716]

Hence, the 99% confidence interval is [51.2884,82.7716]

7 0
3 years ago
A cylinder has a volume of 360 in^3. If the height and radius are multiplied by 2.5, what will the resulting volume be?
4vir4ik [10]
\bf \textit{volume of a cylinder}\\\\&#10;V=\pi r^2 h\quad &#10;\begin{cases}&#10;r=radius\\&#10;h=height\\&#10;-----\\&#10;r=2.5r\\&#10;h=2.5h&#10;\end{cases}\implies V=\pi (2.5r)^2(2.5h)&#10;\\\\\\&#10;V=\pi \cdot 2.5^2\cdot  r^2\cdot 2.5h\implies V=(2.5^2\cdot 2.5)\pi r^2 h&#10;\\\\\\&#10;V=15.625\pi r^2h\impliedby \textit{15.625 of the original}&#10;\\\\\\&#10;\textit{if the original was 360}\qquad 15.265\cdot 360
5 0
3 years ago
Other questions:
  • How do you do 124.2 divided by 23
    15·2 answers
  • solve for the indicated variable. include all of your work in your answer. submit your solution. A=1+prt; for r
    5·1 answer
  • PLEASE ANSWER ASAP!!! CORRECT ANSWER PLEASE!!!
    9·1 answer
  • In the Ardmore Hotel, 20 percent of the guests (the historical percentage) pay by American Express credit card. (a) What is the
    5·1 answer
  • Help!! I cant figure this out for some reason
    11·1 answer
  • Evaluate expression 1/2a-5b when a= -12 and b= -3
    8·1 answer
  • amy shoots a 100 arrows at a target each arrow with a probability 0.2 what is the probability that at most one of her first 10 a
    13·1 answer
  • On a Venn diagram, shade the region:<br> 1. AnB<br> 2. (BnC)nA
    7·2 answers
  • A scale of a map indicates that “1 inch equals 55 miles”. How many miles does 8 inches represent?
    14·2 answers
  • A gym class has $12$ students, $6$ girls and $6$ boys. The teacher has $4$ jerseys in each of $3$ colors to mark $3$ teams for a
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!