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lianna [129]
3 years ago
14

What is the image of the point (-2,-7 after a rotation of 90

Mathematics
1 answer:
Nata [24]3 years ago
5 0
(7,-2)
to find the new coordinates we have (x,y)->(-y,x)
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What are properties of right triangles? 3 minimum.
Readme [11.4K]

Answer:

One angle is always 90° or right angle. The side opposite angle 90° is the hypotenuse. The hypotenuse is always the longest side. The sum of the other two interior angles is equal to 90°.

Step-by-step explanation:

7 0
3 years ago
Sally needs 1 3/4 yards of fabric to make a dress. She has 4 5/8 yards. How many yards of fabric will be left over?
Sophie [7]
Hey there,

Solution:
Fabric needed = 1 3 / 4
Fabric she has = 4 5 / 8
1 3 / 4 - make the denominator into 8
1 3 / 4 = 1 6 / 8
Fabric left = 4 5 / 8 - 1 6 / 8
                = 37 / 8 - 14 / 8 
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Hope this helps :))

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3 years ago
The angle of elevation to the top of a skyscraper is measured to be 2° from a point on the ground 1 mile from the building. How
Nadusha1986 [10]

See picture below for a geometric view.


Let x = height of building


We use basic trigonometry to find x.


The tangent function = opposite side of right triangle OVER adjacent side of right triangle.


tan(2°) = x/1


Solve for x.


After multiplying both sides by 1 (here 1 represents 1 mile), we get

tan(2°) = x.


We now use the calculator to find x.


In fact, you can take it from here. Use your calculator.


3 0
3 years ago
Use the graph to find the x-intercept for the equation ý +2 Graph: Y + 2 = 2(x+3)
alex41 [277]

Answer:

(-2, 0)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please help me, haha...
sashaice [31]
Yup the answer is C !!
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