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Svetlanka [38]
3 years ago
5

PLEASE HELP ME!!!!!!!!!! MUST SHOW ALL WORK

Mathematics
1 answer:
vekshin13 years ago
7 0
Do it by splitting middle term.
Then you will be able to get factors . You can learn how to split middle term by searching videos on you tube or any site.
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First I will build the envelope. For this, I am using a rectangular piece of material 28m long and 12m wide. Out of this materia
RUDIKE [14]

Answer:

3.728 cm²

90

Step-by-step explanation:

To built the envelope I am using a rectangular piece of material 28 m long and 12 m wide.  

Out of this material, I have to cut patches that are 1/12 the length and 2/15 the width of the whole material.

So, the length of the patches is 28 \times \frac{1}{12} = 2.33 m and the width of the patches is 12 \times \frac{2}{15} = 1.6 m.

Therefore, the area of the patches is (1.6 × 2.33) = 3.728 m² each. (Answer)

Now, the area of the rectangular piece of material is (28 × 12) = 336 m²

Hence, \frac{336}{3.728} = 90.37 ≈ 90 such patches can be made out of the whole material. (Answer)

3 0
3 years ago
A 4 meter ladder leans against a house forming a
Ket [755]

Answer:

2.meters

Step-by-step explanation:

Lenght of ladder = 4 m

θ = 30°

To obtain h;

Using Pythagoras rule :

Sinθ = opposite / hypotenus

Hypotenus = 4 ; opposite = h

Sin 30 = h / 4

0.5 = h / 4

h = 0.5 * 4

h = 2 m

Hence, distance between th efoot of ladder and the base of the wall is 2 m

6 0
3 years ago
Is -9.1234567 rational
Wittaler [7]

The short answer: yes.

Explanation: every rational number can be expressed as, well, a ratio. For instance, 5 can be expressed as 5/1 and 1.75 can be expressed as 7/4. Irrational numbers are not rational. For instance, pi... there is no ration for pi.

8 0
3 years ago
Read 2 more answers
PLEASE HELP IT'S DUE TODAY-
Marina86 [1]

bro.. i don't think someone is gonna answer all this for you, you should like figure this out on ur own..

8 0
3 years ago
Read 2 more answers
A customer buys a dress that has an original price of $38. The dress is discounted 25%. The customer pays 6% sales tax on the di
salantis [7]

Answer:

dress? or address?

Step-by-step explanation:

5 0
3 years ago
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