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12345 [234]
3 years ago
5

Expand and simplify (7+6y)^2

Mathematics
1 answer:
iragen [17]3 years ago
8 0

Answer:

49+84y+36y

Step-by-step explanation:

You might be interested in
If there are 10 people in a race how many ways can 1st 2nd 3rd places be awarded
kiruha [24]
3 slots
1st slot has 10 possible people
2nd slot has 9 possible people (1 less than previous)
3rd slot has 8 possible people

so there are 10*9*8 ways or 720 ways
4 0
3 years ago
good morning fellow brainsters please help me i’m tired and i just drank a four loko... can’t think. will give 15 points
borishaifa [10]

Answer:

7. x=3

8. l=11cm and w=7 cm

9. x-5\ge12

10. \frac{x}{3}\le15

Step-by-step explanation:

Question 7.

The given expression is:

12-3(2x+1)=7x-3(7+x)

Expand the parenthesis using the distributive property:

12-6x-3=7x-21-3x

Group similar terms:

-6x-7x+3x=-21+3-12

Simplify

-10x=-30

Divide both sides by -10

x=3

Question 8:

Let the width of the rectangle be; w

The length of the rectangle is l=w+4

The perimeter is given as: P=2(l+w)

Given that the perimeter P=36, then:

36=2[(w+4)+w)]

\implies 36=2(2w+4)

Divide both sides by 2:

\implies 18=2w+4

Subtract 4 from both sides:

\implies 18-4=2w

\implies 14=2w

\implies w=7

The dimensions of the rectangle is: w=7 cm and l=7+4=11cm

Question 9

Let the number be x.

"5 fewer than the number" is written as x-5

"5 fewer than a number is at least 12" becomes

x-5\ge12

Question 10:

Let the number be x.

The quotient of a number and 3 is written as:

\frac{x}{3}

The quotient of a number and 3 is no more than 15 is written as;

\frac{x}{3}\le15

4 0
3 years ago
You start a search for a buried object by marking the center of a field as (0, 0), with coordinates giving distances in yards. C
pychu [463]

The coordinates to the second spot can be represented by the coordinates

(-12 + 3, 8 -11)

Since we are going 3 yards to the east we would be affecting the x-axis and since we are going east we will need to add 3 yards the x axis of the first spot


11 yards south would be affecting the y- axis negatively. We would need to subtract 11 from the y- axis of the first spot.

the coordinates of the second spot would be

-12 +3 = -9

8 -11 = -3


(-9, -3)



7 0
3 years ago
On the map, the distance between Lake Moore and Lake Wyman is 4.5 centimeters.
Crank

Answer: I think it' s A, possibly

8 0
3 years ago
Wrtie the numbers in increasaing order, 4,-9,-5,9,-2,3
Lyrx [107]

Increasing order means from least to greatest.

-9 is the greatest negative number.

-5 is the 2nd  negative greatest number.

-2 is the least negative number.

3 is the least positive number.

4 is the second greatest positive number.

9 is the greatest positive number.

So, the answer is: -9,-5,-2,3,4,9

Hope I helped!

6 0
3 years ago
Read 2 more answers
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