1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
exis [7]
3 years ago
7

What is the image of (2, 1) after a reflection over the x-axis?

Mathematics
1 answer:
astra-53 [7]3 years ago
3 0

Answer:

(2, -1)

Step-by-step explanation:

Whenever you reflect a point over the x-axis, the x-coordinate remains the same, but the y-coordinate becomes its additive inverse.

(x, y) ⇒ (x, -y).

(2, 1) ⇒ (2, -1).

You might be interested in
A motion sensor has a range of 65 meters as shown. The ultrasonic waves sweeping out from the sensor span an angle of 135°.
VMariaS [17]

The approximate area that is within range of the motion sensor is 4975 square meters

<h3>How to determine the area of the range?</h3>

The figure is not given, however the area of the range can be calculated without the figure.

The given parameters are:

Angle, ⊕ = 135°

Radius, r = 65 meters

The area of the range is calculated using the following sector area

A = \frac{\theta}{360} * \pi r^2

This gives

A = \frac{135}{360} * 3.14 *  65^2

Evaluate

A = 4974.9375

Approximate

A = 4975

Hence, the approximate area that is within range of the motion sensor is 4975 square meters

Read more about sector areas at:

brainly.com/question/16736105

#SPJ1

4 0
2 years ago
Which function represents the graph
natulia [17]

Answer:

A

Step-by-step explanation:

the function is moved up by 8 on the y axis which means you need a +8 that isn't directly attached to the x

4 0
3 years ago
Rewrite The subtraction problem as an addition problem -4 - (-1)
kozerog [31]
4+(-1)
Es lo que creo
5 0
3 years ago
A blouse normally cost $138 but is on sale for 25% what is the cost of the blouse
Eddi Din [679]

Answer:

The cost of blouse after 25% discount is $103.5

Step-by-step explanation:

Cost of Blouse = $138

Sale = 25 %

New cost of Blouse will be:

25% of 138

= 25 / 100 * 138

= 34.5

So, New Cost of Blouse = Original Price - Discount Price

= 138 - 34.5

= $103.5

The cost of blouse after 25% discount is $103.5

7 0
3 years ago
I need help anyone??? please??????
olchik [2.2K]
The principal square root of 49 is just 7 because 7 times 7 is 49.
It can not be -7 because a principle square root cannot be negative.

\sf\ Answer: A)\ 7

\sf\ \sqrt{49}=\\\±7\\\\-7\ and\ 7\ are\ both\ square\ roots\ of\ 49\ because\ 7\times7=49\ and\\\\-7\times-7=49.\\\\But\ as\ I\ said\ before,\ principal\ square\ roots\ can\ not\ be\ negative\\\\numbers.\\\\That\ will\ eliminate\ any\ options\ with\ -7.\\\\So\ the\ only\ principal\ square\ root\ that\ we\ have\ is\ {\boxed{7}
8 0
3 years ago
Read 2 more answers
Other questions:
  • If f(x)=3x^5-2x^3+1, then f(-1)=?
    14·2 answers
  • Which table represents exponential growth?<br> :))))
    8·1 answer
  • The larger of two numbers is 12 more than the smaller number. if the sum of the two numbers is 74 find the two numbers.
    6·2 answers
  • 05 - O gráfico a seguir mostra a prevalência de obesidade da
    11·1 answer
  • The quotient of a number and -7 is less than 13
    7·1 answer
  • Determine which expression is equivalent to 15a + 6. (5 points)
    10·1 answer
  • 6
    11·1 answer
  • Jackson’s mom limits the amount of time he is allowed to play video games. After Jackson plays for 9minutes, his mom tells him t
    11·1 answer
  • What are 4 terms of a polynomial
    9·1 answer
  • H.E.L.P 100 POINTS!!! Match the addition and subtraction problems to their solutions: (See the picture)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!