3 years ago

Help me please i need help with this

1 answer:

7 0

(2x +y)(5x-y+3)

10x^2 - 2xy + 6x + 5xy - y^2 + 3y

10x^2 -2xy+5xy + 6x - y^2 + 3y

10x^2 +3xy + 6x -y^2 +3y

Looking at the answer boxes the sign looks wrong to me from y^2 ( a negative times a positive is a negative) I may be wrong.

Anyone else?

You might be interested in

What does 1/3 of (7+8) + 4 to the power of 2 - 2 equal

Serggg [28]

Answer:

Step-by-step explanation:

<u>Step 1: Convert words into an expression</u>

What does 1/3 of (7+8) + 4 to the power of 2 - 2 equal

(1/3(7 + 8) + 4)^(2-2)

(1/3(15) + 4)^0

(5 + 4)^0

(9)^0

Answer: 1

8 0

4 years ago

Read 2 more answers

According to the tables used by insurance companies, a 48-year old man has a 0.169% chance of

yarga [219]

Answer:

The expected value for the person buying the insurance is of -$48.

Step-by-step explanation:

Expected value:

0.169% = 0.00169 probability of earning the death benefit of $100,000, subtracting 217, 100000 - 217 = $99,783.

100 - 0.169 = 99.831% = 0.99831 probability of losing $217.

What is the expected value for the person buying the insurance?

$E = 0.00169*99783 - 0.99831*217 = -48$

The expected value for the person buying the insurance is of -$48.

5 0

3 years ago

Volume of cylinders and cones

VMariaS [17]

Answer:

V=π r2h=cylinder

V=πr2 h/3 =cone

Step-by-step explanation:

8 0

3 years ago

What is the base of a triangle with a height of 7.4 cm and an area of 48.1 cm2?

vitfil [10]

Answer:

13cm

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve the following automotive-services problem.

svp [43]

I think the amswer is A

5 0

3 years ago