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Slav-nsk [51]
3 years ago
12

Trong mặt phẳng toạ độ Oxy, cho tam giác ABC với A(-1;2), B(3;2), C(1;4.Viết phương trình đường thẳng d chứa đường cao kẻ từ đỉn

h A của tam giác ABC
Mathematics
1 answer:
alexandr402 [8]3 years ago
4 0

Answer:

sorry dear could you please correct it

Step-by-step explanation:

I can't understand exactly

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The price of a visit to the dentist is calculated according to the formula 50+100n where n is the number of cavities the dentist
Vsevolod [243]
So you would First find out N which would be 2. So you do 50+100and that would be 150. Then you do 150×2 and that is 300. So the answer is 300!
8 0
4 years ago
Jenny reaches the corner to clear away spider webs from the room. She is holding the 5 foot pole at top of head level from 45. S
Slav-nsk [51]

Answer:

Height of ceiling = 9.04ft

Step-by-step explanation:

Given:

Length of pole = 5ft

Horizontal angle = 45^{0}

Jenny's height = 5ft6in = 5ft + (6/12)ft= 5ft + 0.5ft

Jenny's height =  5.5ft

From the attached diagram, we have that

sin45^{0}= \frac{b}{5}\\ \\b = sin45^{0}*5=0.7071*5\\\\b=3.5355ft

b ≅ 3.54ft

Height of ceiling = Height of Jenny + b

Height of ceiling = 5.5ft + 3.54ft

Height of ceiling = 9.04ft

7 0
3 years ago
Explain why one half times two equals one whole
djverab [1.8K]
Two halfs equal one whole. think of it like this, an orange cut in half leaves you with two halfs, put them together and you have a whole. simple. multiplying by 2 just means adding a number two times.
1 half plus one half= 2halves= 1 whole
1half x 2= 2 halves=1 whole
7 0
3 years ago
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Please help! Please explain and actually help!
stealth61 [152]

Answer:

17

Step-by-step explanation:

According to the Pythagorean theorem, a^2+b^2=c^2, where a and b are the two legs of a right triangle, and c is the hypotenuse. In this scenario, the two legs are 8 and 15, and we are asked to find the hypotenuse. Plugging the two values in, we have 64+225=c^2, where 64 is 8 squared and 225 is 15 squared. Adding, we have the two values as 289. If you don't know your squares, I suggest you take a look at a list or even memorize your squares until 30, but 289 is actually 17 squared. If c^2=289, then c = \sqrt{289}, which is 17.

7 0
3 years ago
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What is a way to write 11 more than twice x is less than 44
madam [21]

(2x) + 11 < 44

x is multiplied by two because we are looking for twice of x. 11 is added to the 2x because we are looking for eleven more than the sum of twice of x. Since 2x + 11 is less than 44, we use the lesser than ( < ) symbol.

4 0
3 years ago
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