MATHEMATICS HIGH SCHOOL

Which of the following situations MAY cause someone to use substitution, in order to solve a system of equations?A. An exact solution is not needed.
B. One of the equations may easily be solved for a variable.
C. An exact solution is needed.
D. Both of the equations are solved for one variable.

Answers

Answer 1
Answer: If you want to substitute, you need to solve an equation for a variable.  I ONLY use this method if I can easily solve one equation for a variable, and then it is a maybe.  For this case use B

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Suppose you are having a birthday party at the local bowling alley. You’re trying to figure out how many people you can afford to invite. 1) The number of guests you can invite to the party varies inversely with the price per bowler at the alley. Explain what this means. 2) How much total money are you willing to spend to host this bowling party? Willing to spend: $ _ 3) Set up an equation that shows the inverse relationship between the number of guests at your party and the price per bowler. Your answer for part 2 should be part of your equation. y= 4) Research two local bowling alleys. Record the price per bowler at each of these two alleys. Bowling Alley #1 $ /bowler Bowling Alley #2 $ /bowler 5) Calculate how many guests you will be able to invite to your party at each of the bowling alleys. Alley Total Bowling Alley #1 Bowling Alley #2 Which alley would you choose for your party? Why?
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Dad is 4 times as old as his son Jim. In 10 years, Dad's age will be 20 years more than twice Jim's age. How old is Jim?If D = dad's age now and J = Jim's age now, which of the following systems could be used to solve the problem? a. D = 4J and D + 10 = 2J + 20 b. D = 4J and D + 10 = 2(4J + 10) + 20 c. D = 4J and D + 10 = 2(J + 10) + 20

The larger nail is a dilation of the smaller nail.Select all statements that are true.

Answers

Answer: the scale factor is 3/4

Step-by-step explanation:

Answer:

whats the rest of the answer?

Step-by-step explanation:

Three sisters shared $3.60 equal. how much did each sisters get?

Answers

360 divided by 3 is 120 so it is $1.20
If you want you could also just do 3.60 divided by 3 which is 1.2 so $1.20, whichever you prefer

PLEASE HELP I WILL MARK BRAINLIEST SHOW WOrK HOW YOU GOT IT

Answers

Answer:

7 . 8.9

8 . 19.5

9 . 9.9

10 .12.6

Step-by-step explanation:

7.x=11tan39

8.x=28cos46

9.x=8tan51

10.x=31sin24

side opposite of mentioned angle is opposite

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Write 9/25 as a percent and a decimal. A) 2.25 and 225%
B) 0.36 and 36%
C) 0.36 and 3.6%
D) 0.036 and 0.36%

Answers

B) 0.36 and 36%

just divide 9 by 25 to get the answer,

you will get 0.36 when doing this and just convert it into a percent

then boom you get 0.36 and 36 %

1.Which is an example of the associative property?A.
–(18 + 3) = –18 + (–3)

B.
–17 + 0 = –17

C.
(–8 + 10) + 4. = –8 + (10 + 4)

D.
–5 + 7 = 7 + (–5)

2.What is the value of the expression?

–15.6 + (–3.4 + 8)

A.
–27

B.
–26

C.
–11

D.
–10



D.
17


3.What value of k makes the equation true?

12 + (–17) = –17 + k

Answers

1) C
2) -15.6+(-3.4+8) = C
     -15.6 + 4.6 = -11
3)12 + (-17) = -17 + k 
k= -5
                     

Write the polynomial in standard form. Give the degree of the polynomial. Classify the polynomial byits degree.

a. 7x-14x^4 +19x^3 +26x^5-18

Standard form:

degree:

name based on degree:

Answers

Answer:

Sure, I'd be happy to help!

The polynomial you provided is:

7x - 14x^4 + 19x^3 + 26x^5 - 18

To put this polynomial in standard form, we need to factor it. Here's the factored form of the polynomial:

7x(1 - 14x^3 + 19x^2 + 26x^4) - 18

Now, we can see that the degree of the polynomial is 4, so it is a quartic polynomial.

Based on the degree of the polynomial, we can classify it as a quartic polynomial.

Step-by-step explanation:
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