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
lianna [129]
3 years ago
10

I need help cuz Im not good at maths

Mathematics
2 answers:
-BARSIC- [3]3 years ago
8 0

<em>Answers:</em>

<em>a.</em><em> </em><em>2</em><em>6</em><em>.</em><em>2</em><em> </em><em>cm</em>

<em>b.</em><em> </em><em>1</em><em>3</em><em>.</em><em>8</em><em> </em><em>cm</em>

<em>Steps:</em>

<em>a.</em><em> </em><em>Solution</em><em>,</em>

<em>Length(</em><em>l)</em><em>=</em><em>9</em><em> </em><em>cm</em>

<em>Breadth(</em><em>b)</em><em>=</em><em>4</em><em>.</em><em>1</em><em> </em><em>cm</em>

<em>Perimeter</em><em> of</em><em> rectangle</em><em>=</em><em>2</em><em>(</em><em>l+</em><em>b)</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>(</em><em>9</em><em>+</em><em>4</em><em>.</em><em>1</em><em>)</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>*</em><em>1</em><em>3</em><em>.</em><em>1</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>2</em><em>6</em><em>.</em><em>2</em><em> </em><em>cm</em>

<em>b.</em><em> </em><em>Perimeter</em><em> </em><em>of</em><em> </em><em>triangle</em><em>=</em><em>a+</em><em>b+</em><em>c</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em> </em><em>3</em><em>.</em><em>6</em><em>+</em><em>3</em><em>+</em><em>7</em><em>.</em><em>2</em>

<em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>=</em><em>1</em><em>3</em><em>.</em><em>8</em><em> </em><em>cm</em>

<em>Hope </em><em>it</em><em> </em><em>helps</em>

<em>Good </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em> </em>

Sati [7]3 years ago
3 0

Answer:

a)26.2cm \\ b)13.8cm

Step-by-step explanation:

<u>Picture</u><u> </u><u>A</u>

<u>there</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>rectangle</u><u> </u>in picture a.

So, let's find the perimeter of this shape

perimeter \\  = l+ b+ l + b  \\ = 2l + 2b \\  = 2 \times 9 + 2  \times 4.1 \\  = 18 + 8.2 \\  = 26.2cm

<u>Picture</u><u> </u><u>B</u>

<u>there</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>triangle</u><u> </u>in picture b

So, let's find the perimeter of the triangle.

To find the perimeter of a triangle you have add the values of three sides together.

perimeter \\  = 3.6 + 7.2 + 3  \\ = 13.8cm

hope this helps

brainliest appreciated

good luck! have a nice day!

You might be interested in
Challenge An arts academy requires there to be 5 teachers for every 115 students and 3 tutors for
Juli2301 [7.4K]

Step-by-step explanation:

<u>5 teachers for every 115 students </u>

  • 1 teacher for every 115/5 = 23 students

<u>3 tutors for every 27 students</u>

  • 1 tutor for every 27/3 = 9 students

<u>If there are 90 students, then number of tutors:</u>

  • 90/9 = 10 tutors
7 0
3 years ago
What is the equation of a line that has a slope of 2 and passes through the point (-6, 3)?
musickatia [10]

Answer:

y=2x+15

Step-by-step explanation:

Idk if you still need help but this is the answer.

Explanation:

You want to find the equation for a line that passes through the point (-6,3) and has a slope of 2.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 2. So you can right away fill in the equation for a line somewhat to read:

y=2x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(-6,3). When x of the line is -6, y of the line must be 3.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the 2 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-6,3).

So, why not plug in for x the number -6 and for y the number 3? This will allow us to solve for b for the particular line that passes through the point you gave!.

(-6,3). y=mx+b or 3=2 × -6+b, or solving for b: b=3-(2)(-6). b=15.

The equation of the line that passes through the point (-6,3) with a slope of 2

is y=2x+15

6 0
3 years ago
Find B'A length and AD length
ICE Princess25 [194]
B'A Length: 90 degrees
AD Length: 31.5 degrees
6 0
3 years ago
<img src="https://tex.z-dn.net/?f=4x%20%2B%202x%20%3D%2020%20%5C%5C%20x%20%2B%203x%20%3D%2050" id="TexFormula1" title="4x + 2x =
Zigmanuir [339]

Answer:

I think there is an error in the question, I assume it reads:

4x+2y=20

x+3y=50

If not, please make appropriate corrections to the question.

Answer: x=-4, y=18

Step-by-step explanation:

4x+2y=20

Simplify, divide by two,

2x+y=10.....................(1)

x+3y=50....................(2)

Multiply (2) by 2

2x+6y=100 ....................(2a)

Subtract (1) from (2a)

2x+6y - (2x+y) = 100 - 10

5y = 90

y=18..............................(3)

Substitute (3) into (1)

2x+(18)=10

2x = 10-18 =-8

x=-4  ............................(4)

Substitute (3) and (4) into (1) for verification

2x+y = 2(-4)+18 = 18-10 = 10   checks.

Substitute (3) and (4) into (2) for verification

x+3y=-4+3(18) = -4+54 = 50  checks.

Have a nice day!

8 0
3 years ago
I just need the answer in word form
nadya68 [22]

Answer:

May 7, May 13, May 19

Step-by-step explanation:

Bethany wears jeans every two days. So, if she wears jeans on May 1, then she will wear jeans on May 3, May 5, May 7

Similarly, she wears running shoes every 3 days. So if she wears running shoes on May 1, then she will wear them on May 4 and May 7.

So she will wear both on May 7.

We can see a pattern that she wore both after six days of wearing them together first time.

Using the pattern we can say that she will again wear them both on May 13 and May 19th ..

6 0
3 years ago
Other questions:
  • 3. Why can the numerator and denominator of a rational expression be divided by their common factors? What conditions must be pl
    9·1 answer
  • Does anyone know this?
    7·1 answer
  • I want to know what to do with my Brainly points. I have all the points I’ll ever need, and I hate answering questions because p
    10·2 answers
  • Two rectangles are similar. The first rectangle has a length of 15 cm and a width of 10 cm. The width of the second rectangle is
    5·1 answer
  • Your current CD matures in a few days. You would like to find an investment with a higher rate of return than the CD. Stocks his
    12·1 answer
  • Answer yes or no and explain
    9·2 answers
  • I will give u brainselst if u solve question below plz show work....
    11·1 answer
  • 14/5 + - 4/3 =<br><br> Adding and Subtracting Fractions.
    14·1 answer
  • PLEASE HELP (20 POINTS)
    14·1 answer
  • Which two ratios represent quantities that are proportional?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!