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2 years ago

Find the product of (7m+8n)(7m−8n)

Mathematics

1 answer:

Anon25 [30]2 years ago

6 0

Answer:

7m-7m=8n+8n

m=16n

Step-by-step explanation: U must first link the like terms so in order to do so u must bring over the 7m, now before u brought over the 7m it was a positive 7m now that your bring it over it turns negeitive and the same goes for the term 8n when u carry that term over it turns positive now dont let the subtraction sign foul u it still negative as long as its beside the term it is going to be negative guys dont forget that, now on to the next step after u cross over and change signs u start to work out now that the like terms are equal u dont need to worry about them because its given u the go ahead to workout so your main focus is on the subtracting the 7's which is 0 and leaves u with m u dont have to put them but i dont recommend it the u start on the next side u and the 8's which is 16 and u put bk the n u have to put bk the terms its important and thats how u get m=16n.

Read more about lengths at:

brainly.com/question/24571594

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7 0

1 year ago

Help Please!! I will give brainliest!

quester [9]

If you take the total height and divide it by the number of cases it, it will then give you the heigh of just one case.
90 divided by 6=15
It’s 15 millimeters per DVD case. Then you take 15 and multiply it by 13 to get the total height of the stack of 13 cases.
Hope this helps!

6 0

2 years ago

Read 2 more answers

A triangle has one leg of 32 inches and one leg of 18 inches. For the triangle to be a right triangle, which best represents the

Marina CMI [18]

Answer:

The option <u> J 36.7 inches</u> best represents the length of hypotenuse.

Step-by-step explanation:

<u><em>The question is incomplete, so below is the complete question:</em></u>

A triangle has one leg of 32 inches and one leg of 18 inches. For the triangle to be a right triangle, which best represents the length of the hypotenuse?

F 34.2 inches G 36 inches H 41.8 inches J 36.7 inches.

Now, to find the hypotenuse.

Leg 1 = 32 inches.

Leg 2 = 18 inches.

Now, to get the hypotenuse we use pythagoras theorem:

$(Leg1)^2+(Leg2)^2=(Hypotenuse)^2$

$(32)^2+(18)^2=(Hypotenuse)^2$

$1024+324=(Hypotenuse)^2$

$1348=(Hypotenuse)^2$

Using square root on both sides we get:

$36.7=Hypotenuse$

$Hypotenuse=36.7\ inches.$

Therefore, the option J 36.7 inches best represents the length of hypotenuse.

7 0

2 years ago

Plz help me I need your help I’m begging you plz help me plz I’m begging you so much plz help me I’m begging you you so much plz

emmasim [6.3K]

It might be A, but not sure

8 0

3 years ago

Read 2 more answers

Please help me answer Questions A & B. I have Plenty of Points

inna [77]

1) To get equation B from equation A, we will add a quantity to the left hand side of equation A. The correct option is A. Add/subtract a quantity to/from only one side

2) The equations are not equivalent. They do not have the same solution

<h3>Equations</h3>

From the question, we are to determine how we can get equation B from equation A

From the given information,

A. 5x - 2 + x = x - 4

B. 5x + x = x - 4

From above, we can observe that to get equation B from equation A, we will add 2 to the left hand side of equation A

That is

5x - 2 + 2 + x = x + 4 → 5x + x = x + 4

Hence, to get equation B from equation A, we will add a quantity to the left hand side of equation A. The correct option is A. Add/subtract a quantity to/from only one side

2) The equations are not equivalent. They do not have the same solution

Learn more on Equations here: brainly.com/question/21765596

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8 0

1 year ago