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
zhuklara [117]
3 years ago
11

I need help ASAP... Please! ​

Mathematics
2 answers:
son4ous [18]3 years ago
8 0

Answer:

7cm

Explanation:

Perimeter= 34cm

13+14= 27cm

34-27= 7cm

AysviL [449]3 years ago
4 0

Answer:

<h2><em>7</em><em> </em><em>cm</em></h2>

<em>Solution</em>

<em>area = 2 \sqrt{510}  \: {cm}^{2}   \\ perimeter = 34 \: cm \\ ab = 14 \: cm \\ bc = 13 \: cm \\ ac =  \\ perimeter = ab + bc + ca \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:or \:  34 = 14 + 13 + ca \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: or \: 34 = 27 + ca \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  or \:  - ca = 27 - 34 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: or \:  - ca =  - 7 \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: ca = 7 \: cm</em>

<em>hope </em><em>this </em><em>helps </em><em>.</em><em>.</em><em>.</em><em>.</em>

<em>good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em><em>.</em>

You might be interested in
The mean SAT score in mathematics, M, is 600. The standard deviation of these scores is 48. A special preparation course claims
kupik [55]

Answer:

Step-by-step explanation:

The mean SAT score is \mu=600, we are going to call it \mu since it's the "true" mean

The standard deviation (we are going to call it \sigma) is

\sigma=48

Next they draw a random sample of n=70 students, and they got a mean score (denoted by \bar x) of \bar x=613

The test then boils down to the question if the score of 613 obtained by the students in the sample is statistically bigger that the "true" mean of 600.

- So the Null Hypothesis H_0:\bar x \geq \mu

- The alternative would be then the opposite H_0:\bar x < \mu

The test statistic for this type of test takes the form

t=\frac{| \mu -\bar x |} {\sigma/\sqrt{n}}

and this test statistic follows a normal distribution. This last part is quite important because it will tell us where to look for the critical value. The problem ask for a 0.05 significance level. Looking at the normal distribution table, the critical value that leaves .05% in the upper tail is 1.645.

With this we can then replace the values in the test statistic and compare it to the critical value of 1.645.

t=\frac{| \mu -\bar x |} {\sigma/\sqrt{n}}\\\\= \frac{| 600-613 |}{48/\sqrt(70}}\\\\= \frac{| 13 |}{48/8.367}\\\\= \frac{| 13 |}{5.737}\\\\=2.266\\

<h3>since 2.266>1.645 we  can reject the null hypothesis.</h3>
6 0
3 years ago
Read 2 more answers
Can somebody help me in this question? It would be very appreciated! :)
Fiesta28 [93]

Answer:

see explanation

Step-by-step explanation:

The area (A) of a rectangle is calculated as

A = width × length

let width be w then length is 2w + 3 ( 3 more than twice the width ), then

A = w(2w + 3) ← distribute

   = 2w² + 3w

When w = 4 , then

A = 2(4)² + 3(4)

   = 2(16) + 12

    = 32 + 12

     = 44 ft²

6 0
3 years ago
What is the domain of
Vsevolod [243]
The domain of what??
8 0
3 years ago
Read 2 more answers
PLEASE HELP QUICKLY
Advocard [28]

Answer:

TanA= \frac{36}{27} and sinA=36/45

Step-by-step explanation:

Tan= opposite/adjacent

since 36 is opposite of A and 27 is adjancent to 36 your will use tanA= 36/27

Sin= opposite/hypotenuse

36 is opposite of A and 45 is the hypotenuse

8 0
3 years ago
John typed a 48 word paragraph in 2/3 minute. What is the typing speed in words per minute​
serg [7]

Answer:  The answer is:  " 72 words per minute. "

___________________________

Step-by-step explanation:

___________________________

This is a "unit rate" problem.

We want to solve for/ find the number of words PER single minute.

___________________________

Given 48 words per (2/3) minute;

How many words per (one) minute?

__________________________

The answer is {48 ÷ (2/3) } words per minute:

 Note: dividing by a number is the same as multiplying by the reciprocal (inverse) of that particular number:

Hence:

__________________________

The answer is {48 * (3/2) } words per minute:

__________________________

 Write as:

  " \frac{48}{1} *\frac{3}{2} " ;

__________________________

  The "48" can be changed to "24" ; and the "2" can be changed to "1" ;

   → {Since: "48 ÷ 2 = 24 "} ;

___________________________

And we have:

___________________________

  " \frac{24}{1} *\frac{3}{1} = 24 * 3 = 72 " ;

___________________________

The answer is:  " 72 words per minute ."

___________________________

Hope this is helpful to you!

___________________________

4 0
3 years ago
Read 2 more answers
Other questions:
  • A school is holding a talent show. A group of six friends entered the talent show and won the first place prize of $45, which th
    5·2 answers
  • I'm too lazy XD... I'll give Brainliest to whoever answers first
    14·2 answers
  • 5y(2y-3)=(2y-3) can someone help me and explain step by step on how to do it
    7·1 answer
  • The quantity demanded x for a certain brand of MP3 players is 100 units when the unit price p is set at $80. The quantity demand
    12·1 answer
  • The surface area of a cube is 600 cm2. What is the area of one face of this cube?
    11·2 answers
  • When 2 is subtracted from one-fourth of a number, the result is seventeen. Find the number
    9·2 answers
  • Xavier (x) has $20 more than Sara (s). Their combined money totals $90. Which system of equations represents this situation?
    12·1 answer
  • Angle
    11·1 answer
  • Determine whether each quadrilateral is a parallelogram. Write yes or no. If yes, give a reason for your answer. ​
    9·1 answer
  • 2/5% as a fraction in it's simplest form​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!