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tamaranim1 [39]
3 years ago
5

It takes jackie 2 hours to make 9 bracelets how many bracelets can she make in 8 hour's?​

Mathematics
2 answers:
Nataly_w [17]3 years ago
7 0

Answer:

36

Explenation:

2 fits 4 times in 8, 9 bracelets are made in two hours

so 9×4=36

gregori [183]3 years ago
4 0

Answer:

8b = 96

Step-by-step explanation:

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What is the factored form of the expression. (2n^2 + 5n + 3) (4n - 5)
7nadin3 [17]

So firstly, <u>the factor (4n - 5) cannot be further factored, so we will be focusing on 2n² + 5n + 3.</u>

So for this, we will be factoring by grouping. Firstly, what two terms have a product of 6n² and a sum of 5n? That would be 2n and 3n. Replace 5n with 2n + 3n:

(2n^2 + 2n + 3n + 3)(4n - 5)

Next, factor 2n² + 2n and 3n + 3 separately. Make sure that they have the same quantity on the inside of the parentheses:

(2n(n+1)+3(n+1))(4n-5)

Now we can rewrite this expression as<u> (2n+3)(n+1)(4n-5) , which is your final answer.</u>

7 0
3 years ago
The diagonals of a rhombus measures 6cm and 8cm, what is the perimeter of this rhombus?
Kamila [148]
<h2><u>Diagram</u><u>:</u><u>-</u></h2>

\setlength{\unitlength}{1 cm}\begin{picture}(20,15)\thicklines\qbezier(1,1)(1,1)(6,1)\qbezier(1,1)(1,1)(1.6,4)\qbezier(1.6,4)(1.6,4)(6.6,4)\qbezier(6,1)(6,1)(6.6,4)\qbezier(6.6,4)(6.6,4)(1,1)\qbezier(1.6,4)(1.6,4)(6,1)\put(0.7,0.5){\sf A}\put(6,0.5){\sf B}\put(1.4,4.3){\sf D}\put(6.6,4.3){\sf C}\end{picture}

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

The diagonals of the Rhombus= d1 & d2=6cm and 8cm

Let the Side=a

As we know that in a Rhombus

{\boxed{\sf side=\sqrt {\left ({\dfrac{d1}{2}}\right)^2+\left ({\dfrac {d2}{2}}\right)^2}}}

  • Substitute the values

{:}\longmapsto\sf a=\sqrt {\left ({\dfrac {6}{2}}\right)^2+\left ({\dfrac {8}{2}}\right)^2 }

{:}\longmapsto\sf a=\sqrt {(3)^2+(4)^2}

{:}\longmapsto\sf a=\sqrt {9+16}

{:}\longmapsto\sf a=\sqrt{25}

{:}\longmapsto\sf a=5cm

<h2>_____________</h2><h3>Again </h3>

we know that in a Rhombus

\boxed{\sf Perimeter=4a}

  • Substitute the values

{:}\longmapsto\sf Perimeter=4×5

{:}\longmapsto\sf Perimeter=20cm

\thereforePerimeter of the rectangle is 20cm.

5 0
3 years ago
Helppp. How do we get the triangles together?
Darina [25.2K]

Answer:

You have to rotate/mirror

Step-by-step explanation:

4 0
3 years ago
Write algebraic expressions for each of the following: a. Multiply n by 5 then add 4. b. Add 4 to n then multiply by 5. c. Add 4
kirza4 [7]

Answer:

A. n5+4   B. (4+n)5  C.(4+n)/5    D.(n*n)3   E. (n*3)  2

Step-by-step explanation:

I am not good at explaining but for E. the 2 will be squared but I am not sure how to type it out so Hope this can help  ;)

6 0
3 years ago
Read 2 more answers
Pls help!! look at photo
monitta

Answer:

2 : 1

Explanation:

\sf area \ of \ sector: \dfrac{\theta}{360} \pi r^2

<u>1st sector</u>:

\sf \rightarrow area: \dfrac{80}{360} \pi (8)^2  = 44.68 \ cm^2

<u>2nd sector</u>:

\sf \rightarrow area: \dfrac{160}{360} \pi (4)^2  = 22.34 \ cm^2

Ratio of 1st sector to 2nd sector:

44.68 : 22.34

2 : 1

7 0
2 years ago
Read 2 more answers
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