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
SSSSS [86.1K]
3 years ago
12

NEED HELP ASAP!!! Will give brainlest

Mathematics
2 answers:
dusya [7]3 years ago
6 0
Answer with explanation
Solving 4*1/3
=13/3
Solving 2*3/5
=13/5
Divinding both as per rule
=13/3 /13/5
=13/3*5/13
Answer is a) part
If want further solving then 13 gets cancelled so answer will come 5/3
Hope it helps
jeka57 [31]3 years ago
3 0

Answer:13/3 *5/13

Step-by-step explanation:

You might be interested in
Based on the random sample of n=800 observations, we have obtained a sample proportion p(bar =0.44. the goal is to test: h(0: p?
uysha [10]
<span>The standard error of a distribution of sample proprtions is defined as the standard deviation of the distribution and is symbolized by
SE(\hat{p})
and is calculated by the formula
SE(\hat{p})= \sqrt{ \frac{p(1-p)}{n} }</span>.

Given a <span>random sample of n = 800 observations and a sample proportion p = 0.44.

To test:
H_0:\hat{p}\ \textgreater \ 0.48 \\ H_a:\hat{p}\ \textless \ 0.48

The standard error rounded to four decimal places is given by:
SE(\hat{p})= \sqrt{ \frac{0.44(1-0.44)}{800} } \\  \\ = \sqrt{ \frac{0.44(0.56)}{800} } = \sqrt{ \frac{0.2464}{800} }  \\  \\ = \sqrt{0.000308} =\bold{0.0175}</span>
5 0
2 years ago
Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 71.2 inches
Alexxandr [17]

Answer:

0.7857

Step-by-step explanation:

Given :

Mean = 69 inches

Standard deviation, = 2.8 inches

The Zscore of a man who is 71.2 inches

The ZSCORE is obtained using the relation :

Zscore = (Score, x - mean) / standard deviation

Zscore = (71.2 - 69) / 2.8

Zscore = 2.2 / 2.8

Zscore = 0.7857

3 0
3 years ago
2x−9y=14 x=−6y+7 ​ x= y=
Assoli18 [71]

Answer:

x =7, y = 0

Step-by-step explanation:

2x - 9y = 14...(1) \\  \\ x =  - 6y + 7...(2) \\  \\ from \: equation \: (1) \: and \: (2) \\  \\ 2( - 6y + 7) - 9y = 14 \\  \\  - 12y + 14 - 9y = 14 \\  \\  - 21y = 14 - 14 \\  \\  - 21y = 0 \\  \\ y =  \frac{0}{ - 21}  \\  \\ \huge \red{ y = 0} \\  \\ x =  - 6 \times 0 + 7 \\  \\ x = 0 + 7 \\  \\  \huge \purple{x = 7}

7 0
3 years ago
Allegra travels at an average speed of 60 mph for 40 miles.
Aleksandr [31]

Answer:

\:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:

4 0
2 years ago
Rupert is copying some files from his computer to a compact disc, like the one shown above.
My name is Ann [436]

Option B: 11,304 \mathrm{mm} ^2 is the area of the compact disc.

Explanation:

The diameter of the compact disc is 120mm.

To determine the area of the compact disc, let us substitute the values in the area of the circle formula,

A=\pi r^2 where r=\frac{d}{2}

Substituting the value of d in r=\frac{d}{2}, we get,

r=\frac{120}{2} =60

Thus, r=60 and \pi=3.14. Let us substitute these values in A=\pi r^2, we get,

A=3.14\times(60)^2

Simplifying, we have,

A=3.14\times3600

Multiplying, we get,

A=11304mm^2

Thus, the area of the compact disc is 11,304 \mathrm{mm} ^2

Hence, Option B is the correct answer.

3 0
2 years ago
Other questions:
  • Please could you find the answers to the questions in the attachment.
    8·1 answer
  • Help me with this one please
    7·1 answer
  • A car travels 450 miles in the same time that a motorcycle travels 390 miles. if the car’s speed is 10 miles per hour more than
    6·1 answer
  • How are the locations on the coordinate grid different for the ordered pairs (7,0) and (0,7)
    12·2 answers
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    5·1 answer
  • How can I show that 3sin^2 x-cos^2 x=2 can be written as 4sin^2 x=3?
    10·2 answers
  • If you Start with $10 in the bank and each month you add $20 which line equation will give you your total amount after X months?
    11·1 answer
  • One hundred and sixty-two thousandths as a decimal​
    8·2 answers
  • What is the measure of a single interior angle of a regular 34-gon?​
    8·1 answer
  • Don’t answer the question
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!