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
Scilla [17]
3 years ago
11

What are the coordinates of the pre-image of N' if it was reflected across the y-axis, and N' has coordinates (3, -1)? Please ex

plain i really need help on this.
Mathematics
1 answer:
borishaifa [10]3 years ago
6 0
The answer would be (3,-1) because it is reflected
You might be interested in
Use the following table for questions 11-13.A baseball manager believes a linear relationship exists between the number of Home
slamgirl [31]

The regression equation of Y on X is given by the following formula:

Y-\bar{Y}=b_{yx}(X-\bar{X})

Where byx is given by the formula:

b_{yx}=\frac{N\sum^{}_{}XY-\sum^{}_{}X\sum^{}_{}Y}{N\sum^{}_{}X^2-(\sum^{}_{}X)^2}

Where N is the number of values (N=8). We need to find the sum of X values, the sum of Y values, the average of X, the average of Y, the sum of X*Y and the sum of X^2.

The table of values is:

The values we need to know are on the following table:

By replacing the known values in the formula we obtain:

\begin{gathered} b_{yx}=\frac{8\cdot26125-167\cdot995}{8\cdot4649-(167)^2} \\ b_{yx}=\frac{209000-166165}{37192-27889} \\ b_{yx}=\frac{42835}{9303} \\ b_{yx}=4.6 \end{gathered}

Now, the average of X and Y is the sum divided by N, then:

\begin{gathered} \bar{X}=\frac{167}{8}=20.87 \\ \bar{Y}=\frac{995}{8}=124.37 \end{gathered}

Replace these values in the formula and find the regression equation as follows:

\begin{gathered} Y-124.37=4.6(X-20.87) \\ Y-124.37=4.6X-4.6\cdot20.87 \\ Y=4.6X-96.11+124.37 \\ Y=4.6X+28.26 \end{gathered}

The answer is a) y=4.6x+28.26

7 0
1 year ago
How do you solve u/5+u/10-u/6=1
Zinaida [17]
Find the least common denominator for each of these fractions then complete the equation until it equals 1.

Common factor is 30
u/5 = 6u/30
u/10 = 3u/30
-u/6 = -5u/30

6u/30 + 3u/30 - 5u/30 = 1
4u/30 = 1
4u = 30
u = 7.5
8 0
3 years ago
Find the perimeter of a rectangle that is 2 and 1/2 yards by 4 and 1/2 yards
Travka [436]
The answer is 14. First, get both numbers and add them twice (2.5+2.5+4.5+4.5) or (2.5 * 2 + 4.5 * 2). Then you should get 2 numbers which are 9 and 5. Then it should be 14, which is the answer.
7 0
3 years ago
Find the sum of 5+(-7)=?. Use a number line to verify your answer
Nina [5.8K]

Answer:

-2

Step-by-step explanation:

5+(-7) is the same as saying 5-7, so lets looks at this

6 0
3 years ago
Read 2 more answers
Find the area of the figure.
nevsk [136]

Answer:

<h2>        A = 132 cm²</h2>

Step-by-step explanation:

Area of the figure is a sum of area of rectangle 4 cm × 7 cm and trapezoid with bases of 19 cm i 7 cm and altitude of 8 cm.

Therefore:

A=7\cdot4+\dfrac{7+19}2\cdot8=28+26\cdot4=132

5 0
3 years ago
Other questions:
  • 861 ÷3 show work for this problem please
    7·1 answer
  • How to substitute equations
    12·1 answer
  • A purple paint is made by mixing 15oz of of red paint,and 5oz of boue paint. What percent of the paint is blue paint.
    9·1 answer
  • Distance on graph
    9·1 answer
  • What is factored form of x2-12x-4?
    8·1 answer
  • U and V are mutually exclusive events. P(U) = 0.27; P(V) = 0.56. Find:
    12·2 answers
  • Which of the following is an example of a proper fraction? A. 7⁄6 B. 4⁄4 C. 4⁄3 D. 3⁄4
    9·1 answer
  • The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customer
    11·1 answer
  • Solve the question below
    5·1 answer
  • Find the probability that the sum of two randomly chosen numbers from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} is no greater than
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!