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3 years ago

What is the image of point (4,3) if the rotation is -270

Mathematics

1 answer:

Gre4nikov [31]3 years ago

6 0

Were is the image so i can help you

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125% of wat number is 45

Masteriza [31]

Answer:

Step-by-step explanation:

125% of what number equals 45? Answer: 36

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4 years ago

Sarah’s age increased by twice bob’s age is 42

mr Goodwill [35]

Since Sarah’s age is 2x of Bob’s age (which is 42) Sarah is 84.

6 0

4 years ago

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Hansen has $65,575 in a savings account. The interest rate is 9% per year and is not

Montano1993 [528]

Answer:

23.607

Step-by-step explanation:

Given:

$65,575

4 Year

4 x 9% = 0.36

65,575 x 0.36 = 23.607

Not sure if it correct or not try my best 

5 0

2 years ago

In Triangle XYZ, measure of angle X = 49° , XY = 18°, and

marissa [1.9K]

Answer:

There are two choices for angle Y: $Y \approx 54.987^{\circ}$ for $XZ \approx 15.193$ , $Y \approx 27.008^{\circ}$ for $XZ \approx 8.424$ .

Step-by-step explanation:

There are mistakes in the statement, correct form is now described:

In triangle XYZ, measure of angle X = 49°, XY = 18 and YZ = 14. Find the measure of angle Y:

The line segment XY is opposite to angle Z and the line segment YZ is opposite to angle X. We can determine the length of the line segment XZ by the Law of Cosine:

$YZ^{2} = XZ^{2} + XY^{2} -2\cdot XY\cdot XZ \cdot \cos X$ (1)

If we know that $X = 49^{\circ}$ , $XY = 18$ and $YZ = 14$ , then we have the following second order polynomial:

$14^{2} = XZ^{2} + 18^{2} - 2\cdot (18)\cdot XZ\cdot \cos 49^{\circ}$

$XZ^{2}-23.618\cdot XZ +128 = 0$ (2)

By the Quadratic Formula we have the following result:

$XZ \approx 15.193\,\lor\,XZ \approx 8.424$

There are two possible triangles, we can determine the value of angle Y for each by the Law of Cosine again:

$XZ^{2} = XY^{2} + YZ^{2} - 2\cdot XY \cdot YZ \cdot \cos Y$

$\cos Y = \frac{XY^{2}+YZ^{2}-XZ^{2}}{2\cdot XY\cdot YZ}$

$Y = \cos ^{-1}\left(\frac{XY^{2}+YZ^{2}-XZ^{2}}{2\cdot XY\cdot YZ} \right)$

1) $XZ \approx 15.193$

$Y = \cos^{-1}\left[\frac{18^{2}+14^{2}-15.193^{2}}{2\cdot (18)\cdot (14)} \right]$

$Y \approx 54.987^{\circ}$

2) $XZ \approx 8.424$

$Y = \cos^{-1}\left[\frac{18^{2}+14^{2}-8.424^{2}}{2\cdot (18)\cdot (14)} \right]$

$Y \approx 27.008^{\circ}$

There are two choices for angle Y: $Y \approx 54.987^{\circ}$ for $XZ \approx 15.193$ , $Y \approx 27.008^{\circ}$ for $XZ \approx 8.424$ .

6 0

3 years ago

Can anyone tell me who danink 662 is and how do you know him

neonofarm [45]

Answer:

He is a person with a profile on brainly. And I do believe that I have him as one of my friends*

*or not :)

Step-by-step explanation:

8 0

3 years ago

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