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victus00 [196]
3 years ago
6

Find the product of (3x + 7y)(3x − 7y)

Mathematics
2 answers:
snow_lady [41]3 years ago
8 0

Answer: 9x^2 - 49y^2

Step-by-step explanation:

(3x + 7y)(3x − 7y)

9x^2 -21xy + 21xy - 49y^2

9x^2 - 49y^2

nalin [4]3 years ago
7 0

Answer:

9x^2 - 49y^2

Step-by-step explanation:

You might be interested in
The sum of three consecutive whole numbers can be divided exactly by 3 give two examples to show this statement is true
s2008m [1.1K]
8+9+10 = 27
27/3 = 9

4+5+6 = 15
15/3 = 5

This is always so, because the third number has one extra that can be added to the first to make them 3x the same numbers.
4 0
3 years ago
It took a submarine 30 seconds to sink 225 feet, moving at a constant speed. The captain wants to know the submarine's speed.
Vladimir [108]

Answer:

Speed per second= 7.5 feet per second

Step-by-step explanation:

Giving the following information:

We have a distance (225 feet), and a time (30 seconds). Also, we know that the speed was constant.

<u>All we have to do is divide the distance by the time and determine the speed per second:</u>

Speed per second= distance / time

Speed per second= 225 / 30

Speed per second= 7.5 feet per second

5 0
3 years ago
Find the midpoint of segment JT when the coordinates are J(-3,18) and T(7,-10). Show all work
nignag [31]
Given two points (x₁,y₁) and (x₂,y₂), the midpoint of the segment will be:
( (x₁+x₂) / 2 , (y₁+y₂)/2  ).
In this case:
J(-3,18)
T(7,-10)

The midpoint will be:
( (-3+7)/2  ,  (18-10)/2 )=(4/2 , 8/2)=(2, 4).

Answer: the midpoint of segment JT is (2,4)
5 0
3 years ago
Which of the following systems of linear inequalities is represented by the
algol [13]

Answer:

Option D is correct.

Step-by-step explanation:

Option D is correct.

y < 2 and y >= x

Because the dotted line shows that y < 2 and y >=x is shown is represented by diagonal line.

5 0
4 years ago
Read 2 more answers
Find the value of x.
KatRina [158]

Answer:

A or B

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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