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Nat2105 [25]
3 years ago
12

(a-b) ( a+b) simplify​

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

a^2 - b^2

Step-by-step explanation:

1. (a)(a)+(a)(b)+(-b)(a)+(-b)(b)

2. a^2 + ab - ab - b^2

3. a^2 - b^2

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Help pls this is my first question on here and I need help with this pls. I will give you the brainliest and a thanks!! :)) Can
docker41 [41]

Answer:

1. 18.85in

4. 25.13m

Step-by-step explanation:

I got you

So to find the circumference of any circle we use the equation 2pi(r)

2(3.1415)(3)= 18.85in for the first one because radius is half of the diameter which is 6 so half of 6 is 3

For 4. 4m is actually the radius so just plug that into the equation 2pi(4)=25.13m

4 0
3 years ago
PLEASE ANSWER ASAP FOR BRAINLIEST!!!!!!!
miss Akunina [59]

Answer:

2144.66

Step-by-step explanation:

V = 4/3 π r^3

7 0
3 years ago
Read 2 more answers
Please help me do this i’ll give brainlist and points
lorasvet [3.4K]

To make enough brew for 4 people you would need:

3 frogs

4 1/2 cups of sour milk

14 gerbil tails

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<em>Have a luvely day!</em>

3 0
2 years ago
A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket
zheka24 [161]

Answer:

the chances are 5/11 that Jones will get an orange and 5/11 that Beth will get an orange also

Step-by-step explanation:


4 0
3 years ago
Joshua Treet had a $400.00 average monthly expenditure for entertainment during the second quarter of the year. He spent $401.50
irga5000 [103]
First, the formula for the average of a data set must be defined. It is calculated by adding all the numbers in the data set and then dividing the sum by the number of data. In this case, the average is set to be equal to $400 with the total number of data being 3, with the September expenditure set as an unknown, x. The equation is then set-up to be: 400 = (401.5 + 250 + x)/3. Thus, Joshua can spend as much as $ 548.5 to be able to have the same average as in his second quarter expenditure. 
4 0
2 years ago
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