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vodomira [7]
3 years ago
9

If x = 7, find the value of a) x2 b) (x + 3)*2

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

a) 49

b) 100 (I'm assuming that the 2 was supposed to be a square)

Step-by-step explanation:

Substitute the value in for x (the value being 7):

7² = 49

(7 + 3)² = (10)² = 100

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Point K is rotated 90°. The coordinate of the pre-image point K was (2, –6) and its image K’ is at the coordinate (−6, −2). Find
umka21 [38]

Answer:

Hello! The answer to your question will be below.

Step-by-step explanation:

The answer would be clockwise.

So point k was rotated 90 degrees clockwise.....

Review.....

Question:

Point K is rotated 90 degrees. The coordinate of the pre-image point K was (2,-6) and it’s image K’ is at the coordinate (-6,-2).Find the direction of the rotation.

THE DIRECTION OF THE ROTATION WAS CLOCKWISE.

Hope this helps! :)

⭐️Have a wonderful day!⭐️

8 0
3 years ago
A sign 4 meters tall cast a shadow 5 meters long . At the same time, a tree casts a shadow 30 meters long. What is the height of
AfilCa [17]
The information's given in the question are of vital importance. These information's should be very useful while getting to the desired answer of the given question.Let us now concentrate on the problem that needs to be solved.
The height of the sign that casts a shadow of 4 meters is = 5 meters
Then
The height of the tree that casts a shadow of 30 meters = (5/4) * 30 meters
                                                                                          = 150/4 meters
                                                                                          = 37.5 meters
So the tree casting a shadow of 30 meters is actually 37.5 meters in height. I hope the procedure is simple enough for you to understand.
5 0
3 years ago
3y - x = 2<br><br> -2y - x = -18<br><br> x = y =
crimeas [40]

Answer:

3y-x=2

x=−2+3y

y=2/3+x/3

-2y-x=18

y=9-x/2

x=18-2y

Step-by-step explanation:

4 0
3 years ago
Solve the equation -2x -18= 6
Leno4ka [110]
X= -12 and that’s you answer
6 0
4 years ago
Read 2 more answers
Cameron graphed f(x)=x^3-6.he concluded that it is a quadratic trinomial. What is his error?
o-na [289]

Answer:

It is a cubic function, not a trinomial. This is binomial function because it has 2 terms(x^3 and -6) and it is a cubic function because the highest power is the third degree.

4 0
4 years ago
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