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polet [3.4K]
3 years ago
10

When using the binomial formula, which of the following is a correct step in the expansion of (x+y)^4?

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0
(X+y)^2(x+y)^2
(X^2+2xy+y^2)(X^2+2xy+y^2)
X^2(x^2+2xy+y)+2xy(x^2+2xy+y)+y^2(x^2+2xy+y)

X^4+4x^3y+6x^2y^2+4xy^3+y^4 is the answer.i didn't write all the steps as I would have been too long and complicated
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Please help on number 9 and 10. Will mark brainliest.
Alenkasestr [34]

Answer:

9. 1.24 mL

10. $5.93

Step-by-step explanation:

<u>Question 9:</u>

If the dosage of medicine is 0.01 mL per pound of weight of the patient, and the patient's weight is 124 pounds, we can set up an equation to solve for how much medicine the patient would need to take:

Dosage of medicine per pound of body weight x Total body weight = Total medicine required

                                                               OR

0.01 * w = m,

where w is total body weight and m is total medicine required.

To solve for the dosage the patient needs, just plug the numbers into the right places (124 for w and leave m as it is):

0.01 * 124 = m

1.24 = m

Therefore, a patient with a body weight of 124 pounds would need a 1.24 mL dosage.

<u>Question 10:</u>

To make the multiplication easier, we could rewrite 15% as 0.15 ( because 15% = 15/100):

0.15 * Total bill = Total tax payed for bill (Also can be written as \frac{15}{100} * 39.51)

                                 OR

0.15*39.51 = Total tax

5.9265 = Total tax

5.93 = Total tax <-------- (rounded)

3 0
3 years ago
Helpppppppppppp!!!!!!!!!!!!!!!!!!
serious [3.7K]

Answer: 2

Step-by-step explanation: angle measures don't change when changing size

4 0
3 years ago
Rahm used a payment plan to purchase wood for a home project. The wood he bought cost $500. The clerk at the store offered him t
faust18 [17]

Answer: 210

Step-by-step explanation:

55×12=660-500=160+50(down payment)=210

5 0
3 years ago
Complete the following statements to prove that ∠IKL and ∠JLD are supplementary angles. It is given that ∠EIJ ≅ ∠GJI. Also, ∠EIJ
Dima020 [189]

Answer:

1st blank: substitution property of equality

2nd blank: linear pair theorem

3rd blank: substitution property of equality

Step-by-step explanation:

<u>1st blank</u>

∠EIJ ≅ ∠GJI (eq. 1)

∠EIJ ≅ ∠IKL (eq. 2)

∠GJI ≅ ∠JLK (eq. 3)

Substituting eq. 3 into eq. 1:

∠EIJ ≅ ∠JLK

and then, substituting eq. 2:

∠IKL ≅ ∠JLK

which means that m∠IKL = m∠JLK

<u>2nd blank</u>

The Linear Pair Theorem states that two angles that form a linear pair are supplementary

<u>3rd blank</u>

m∠JLK + m∠JLD = 180°

Substituting with the previous result:

m∠IKL + m∠JLD = 180°

6 0
3 years ago
Relationship B has a greater rate than Relationship A. The graph represents Relationship A.
Pepsi [2]
I don’t understand. Could you break the question down?
7 0
3 years ago
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