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Elden [556K]
3 years ago
13

Point P' is the image of the point P after a counterclockwise rotation of 90 degress about the origin. If the coordinates of poi

nt P' are (-7,-3) what are the coordinates of point P?
A. (-3,-7)
B. (-3,7)
C. (3,-7)
D. (3,7) ​

Mathematics
1 answer:
iogann1982 [59]3 years ago
6 0
Ok I will give brainliest the answer I can give her a
You might be interested in
Chloe drives from her house to her Grandma's house 48 miles away in an hour and 12 minutes. How fast was she driving on average?
Lera25 [3.4K]

To find a speed in miles per hour, we need to divide a number of miles by a number of hours.

We are given 48 miles, so we already have a number of miles.

We are given the time as 1 hour and 12 minutes. We need to convert this time into hours.

1 hour + 12 minutes = 1 hour + 12/60 hour = 1.2 hours

speed = distance/time = 48 miles / 1.2 hours = 40 mph

Answer: The fourth choice, 40 mph.

3 0
3 years ago
Read 2 more answers
A toy store received a large shipment of toy race cars. The cars come in blue and red. Because the red cars are more popular, th
Serhud [2]

Answer:

24 cars

Step-by-step explanation:

Given

Red:Blue = 3:2

Cars = 40

Required

Determine the number of red cars

Number of red cars is calculated using:

Red\ Cars = \frac{Red\ Ratio}{Total\ Ratio} * Cars

Red\ Cars = \frac{3}{3 + 2} * 40

Red\ Cars = \frac{3}{5} * 40

Red\ Cars = \frac{3 * 40}{5}

Red\ Cars = \frac{120}{5}

Red\ Cars = 24

5 0
3 years ago
From a balloon 760 feet high, the angle of depression to the ranger headquarters is 89°18'. How far is the headquarters from a p
Gnom [1K]

Answer:

9 ft

Step-by-step explanation:

let x be the required  distance.

\frac{760}{x} =tan~ 89^\circ18 '\\x=\frac{760}{tan~89^\circ 18' } =\frac{760}{tan~89 \frac{18}{60}} =\frac{760}{tan~89.3^\circ} \\or~x \approx 9~ft

6 0
3 years ago
If the measure of one exterior angle of a regular polygon is 156 degrees , how many sides does the polygon have ?
Burka [1]

Answer:

15  sides

Step-by-step explanation:

with regular polygons it is best to work with the exterior angles since the sum of exterior angles is  360  degrees

one exterior angle =  180  − one interior angle

∴  one ext. <  =  180  −  156 =  24  degrees

no of sides  = 360 /24 =  15  s i d e s

8 0
3 years ago
In the equation left parenthesis x squared plus 14 x right parenthesis plus left parenthesis y squared minus 18 y right parenthe
Phoenix [80]

Answer:

Complete the square on x by adding​ <u>49</u> to both sides.

Complete the square on y by adding​ <u>81</u> to both sides.

Step-by-step explanation:

We have been given an equation (x^2+14x)+(y^2+18y)=5. We are asked to complete the squares for both x and y.

We know to complete a square, we add the half the square of coefficient of x or y term.

Upon looking at our given equation, we can see that coefficient of x is 14 and coefficient of y is 18.

(\frac{14}{2})^2=7^2=49

(\frac{18}{2})^2=9^2=81

Now, we will add 49 to complete the x term square and 81 to complete y term square on both sides of our given equation as:

(x^2+14x+49)+(y^2+18y+81)=5+49+81

Applying the perfect square formula a^2+2ab+b^2=(a+b)^2, we will get:

(x+7)^2+(y+9)^2=135

Therefore, We can complete the square on x by adding​ <u>49</u> to both sides and the square on y by adding​ <u>81</u> to both sides.

7 0
3 years ago
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