All categories

2 years ago

I need help for this question.

Mathematics

1 answer:

creativ13 [48]2 years ago

6 0

Answer:

Sara is correct because when you do it out you get a negative first coefficnt

Step-by-step explanation:

Foil both out and see

You might be interested in

Use Lagrange multipliers to minimize the function f(x,y,z)=x2 +y2 +z2

lubasha [3.4K]

Question options :

A)64

B)192

C)128

D)384

Answer:

B)192

Step-by-step explanation:

Please find attachment

8 0

3 years ago

5n + 3/4n = 2<br> Solve for n

vovangra [49]

5n+3/4n=2
20n+3n/4=2
23n/4=2
23n=8
n=8/23

3 0

3 years ago

Read 2 more answers

luisa reads 2 pages of hee book every minute.At this rate,how many hours will it take her to read 300 pages?

shepuryov [24]

Answer: 150 minutes or 2.5 hours

Step-by-step explanation: subsite the hours with x so you would have 2x=300 if she reads 2 pages a minute in 150 minutes she would have 300 pages

5 0

3 years ago

A meal that contains 4 grams of fat, 3 grams of protein, and 3 grams of carbohydrate will provide ______ calories.

trapecia [35]

60 calories

hope this helps :)

7 0

3 years ago

Read 2 more answers

The ratio of North American butterflies to South American butterflies at a butterfly park is 5:3. The ratio of South American bu

Natalija [7]

Answer: There are 12 European butterflies.

Step-by-step explanation:

Let be "s" the number of South American butterflies at the butterfly park.

Since the ratio of North American butterflies to South American butterflies at a butterfly park is 5:3 and the number of North American butterflies at the butterfly park is 30, you can write the folllowing proportion:

$\frac{5}{3}=\frac{30}{s}$

Solving for "s", you get:

$(s)(\frac{5}{3})=30\\\\s=(30)(\frac{3}{5})\\\\s=18$

Let be "e" the number of European butterflies at the butterfly park.

Knowing that the ratio of South American butterflies to European butterflies at the butterfly park is 3:2, and since there are 18 South American butterflies, you can write the following proportion:

$\frac{3}{2}=\frac{18}{e}$

Solving for "e", you get:

$(e)(\frac{3}{2})=18\\\\e=(18)(\frac{2}{3})\\\\e=12$

4 0

4 years ago