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eduard
4 years ago
15

Find the point, M, that divides segment AB into a ratio of 4:7 if A is at (-33,0) and B is at (0,44)

Mathematics
2 answers:
Alexeev081 [22]4 years ago
5 0
Given that M divides  segment AB in the ratio 4:7, to get the point M we proceed as follows:
A(-33,0); B(0,44)
4/11[(0--33),(44-0)]
=4/11(33,44)
=(12,16)
Thus the point will be:
M=[-33+12,16+0]
M=(-21,16)

Answer: D] (-21,16)
Minchanka [31]4 years ago
4 0

Answer:

D. (-21,16)

Step-by-step explanation:

We have been that point, M, divides segment AB into a ratio of 4:7. Point A is at (-33,0) and B is at (0,44). We are asked to find the coordinates of point M.

We will use segment formula to solve our given problem.    

When point P divides segment AB internally in the ratio m:n, then coordinates of point P can be found using formula:

[{x=\frac{m\cdot x_2+n\cdot x_1}{m+n}, y=\frac{m\cdot y_2+n\cdot y_1}{m+n}]

Upon substituting our given values in above formula we will get,

[{x=\frac{4\cdot 0+7\cdot -33}{4+7}, y=\frac{4\cdot 44+7\cdot 0}{4+7}]

[{x=\frac{0+-231}{11}, y=\frac{176+0}{11}]

[{x=\frac{-231}{11}, y=\frac{176}{11}]

[{x=-21, y=16]

Therefore, the coordinates of point M are (-21,16) and option D is the correct choice.

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Option C:

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Solution:

Given equation:

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<u>To find the degree:</u>

\sin x=1+\cos ^{2} x

Subtract 1 + cos²x from both sides.

\sin x-1-\cos ^{2} x=0

Using the trigonometric identity:\cos ^{2}(x)=1-\sin ^{2}(x)

\sin x-1-\left(1-\sin ^{2}x\right)=0

\sin x-1-1+\sin ^{2}x=0

\sin x-2+\sin ^{2}x=0

\sin ^{2}x+\sin x-2=0

Let sin x = u

u^2+u-2=0

Factor the quadratic equation.

(u+2)(u-1)=0

u + 2 = 0,  u – 1 = 0

u = –2, u = 1

That is sin x = –2, sin x = 1

sin x can't be smaller than –1 for real solutions. So ignore sin x = –2.

sin x = 1

The value of sin is 1 for 90°.

x = 90°.

Option C is the correct answer.

3 0
3 years ago
Read 2 more answers
What is 2p6−19=−9 I need help pls I don't understand this at all
Aleonysh [2.5K]

Answer:

5/6. Is this what u are looking for?

Step-by-step explanation:

Step 1 Simplify:2x(6)-19=-9 to 12x+-19=-9

Step 2 Add 19 to both sides: 12x-19+19=-9+19. You should get 12x=20

Step 3 Divide 12 on both sides: 12x/12=10/12

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rewona [7]

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Step-by-step explanation:

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3 years ago
Calculate the area of area of a rectangular with a base of 10cm and a height of 6cm​
nadya68 [22]

Answer:

<em>60cm²</em>

Step-by-step explanation:

Length = 6cm

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8 0
3 years ago
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i need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli a
IgorLugansk [536]
According to the question, 
Let,
"n" represent the number of miles semir walked.
"y" represent the number of miles sarah walked.
Now, according to the question,

y = 2n - 5  ........................this is your equation 
Also,
the question states, each of them collect $18 in pledges for every miles walked.

Given,
Sarah collected $450
Now, 

Using unitary method,

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Since, y is the no. of miles sarah walked, we can write 25 in place of "y" So,
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30 = 2n
30 / 2 = n
15 = n

Since, "n" is the no. of miles that semir walked, Semir walked 15 miles.


7 0
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