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horrorfan [7]
3 years ago
10

Cho biết DABC ∽DMNP theo tỉ số 2/3 và chu vi của DABC là 12cm. Chu vi của DMNP là .Kết luận đúng là:

Mathematics
2 answers:
Effectus [21]3 years ago
7 0
Answer question is C
artcher [175]3 years ago
4 0

Answer:

C

Step-by-step explanation:

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3 years ago
An alloy composed of nickel, zinc, and copper in a 4:1:2 ratio. How many kilograms of each metal are needed to make 35 kg of thi
gregori [183]

Answer:


Step-by-step explanation:

The ration of weight of nickel, zinc, and copper in an alloy is 4:1:2

The weight of alloy can be written as

4x + x + 2x = 35 Kg

7 x = 35 Kg

X = 35 Kg/7

X = 5kg

The weight of nickel the alloy = 4 x 5 = 20 Kg

The weight of zinc in the alloy= 1 x 5 = 5kg

The weight of copper in the alloy = 2 x 5 = 10 kg


7 0
3 years ago
Read 2 more answers
Lars is planning to purchase a home. He has been approved for a $420,000, 20-year mortgage with an APR of 5.125%.
Alenkasestr [34]

Answer:

Wow - you are asking a LOT of questions.  The Monthly Payment Formula is really tricky so I'll solve that for you.  

The time of the loan = 20 years * 12 = 240 months

We have to convert the annual rate to a monthly rate and that is done by:

monthly rate = 5.125 / 1,200 = 0.00427083333333333

Monthly pmt = 0.00427083333333333 + [0.00427083333333333 / (1.00427083333333333^240) -1 ] * 420,000

Monthly pmt = 0.00427083333333333 + [0.00427083333333333 / 2.7810190076 -1] * 420,000

Monthly pmt = (0.00427083333333333 +0.0023979718) * 420,000

Monthly pmt = 2,800.90

A calculator to double check is here: https://www.1728.org/calcloan.htm

Step-by-step explanation:

6 0
2 years ago
4. (x+ 2)(2x2 + 9x+8)
vfiekz [6]

Answer:

2x3+9x2+8x+4x2+18x+16

2x3+13x2+26x+16

6 0
3 years ago
PLS HELP ME QUICK what is the answer image below
soldi70 [24.7K]

Answer:

22

Step-by-step explanation:

3 0
3 years ago
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