MATHEMATICS HIGH SCHOOL

3x-5y=9
-4x+2y=2
Solve using algebraic methods.

Answers

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Maggie and her friends are each able to recruit a certain number of people each year to sample a product. The number of people per year is represented by the function f(t) = 3(2)t. What does the t represent? How many people were recruited in 6 years?.
1/4 Divided By 9/10=
PLZ Help 20 points!!!!!
1. Jonathan bought 10lb of flour at $7.50. He had a store coupon for $0.79. What was thefinal price for the flour? the answer and work

State the maximum and mini mum value of
f(x)= x^2+9

Answers

f(x)= x^2+9\n\nfor\ each\ x\in R\n\nx^2 \geq 0\ \ \ \Rightarrow\ \ \ x^2+9 \geq 9\ \ \ \Rightarrow\ \ \ f(x) \geq 9\n\ny_(min)=9\n y_(max)\ \ \ \rightarrow\ \ \ not\ exist
a>0 \Rightarrow \hbox{no maximum}

y_(min)=(-b^2+4ac)/(4a)\ny_(min)=(-0^2+4\cdot1\cdot9)/(4\cdot1)\n y_(min)=9

Phil made 50 ounces of purple dye by mixing a solution consisting of 15% blue dye and 85% red dye. How many ounces of red dye did he use in the process?

Answers

In accordance with given data correct answer is

RD=  85% * 50 = 0.85 * 50 = 42.5 ounces of red dye.

Good luck!!!

Final answer:

Phil used 42.5 ounces of red dye in the process of making 50 ounces of purple dye, given that the mixture was 85% red dye.

Explanation:

The question is asking us to determine how many ounces of red dye was used in the mixing process to produce 50 ounces of purple dye. Phil used a solution of 15% blue dye and 85% red dye. Therefore, the amount of red dye used can be computed by taking 85% of the total amount of dye made, which is 50 ounces.

To do this, we multiply the total ounces of dye (50 ounces) by the percentage of red dye (85%) used in the mixture. Mathematically, this is represented by the equation: (85/100) * 50.

Therefore, Phil used 42.5 ounces of red dye in the mixing process to make the purple dye.

Learn more about Percentage Calculation here:

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Marco does 14 extra math problems each school night how many extra problems does he do each week. there are 5 school nights in a week

Answers

5 school nights* (14 math problems/ 1 school night)= 70 math problems.
(Note that the unit cancels out so you get the answer)

The final answer is 70 math problems~
Marco does 70 extra math problems each week. 14(5)=70 

Multiply and simplify the product.–12i × 3i
Select the product.

a.36

b. -36

c. 36i

d. -36i

Answers

The multiplication and simplification of the polynomial –12i × 3i gives 36

What is a complex number?

A complex number is a number of the form a + bi, where a and b are real numbers, and i = √-1

i² = (√-1)² = -1

Given the complex number:

–12i × 3i

multiplying and simplifying gives:

= -36 * i² = -36 * -1 = 36

The multiplication and simplification of the polynomial –12i × 3i gives 36

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Hello,
(-12i)*(3i)=-36i²=36
Answer A

Can some one help me plz with step by step
x^2 - 12x + 35

Answers

Answer:

(x + 3)(5x + 2)

Step-by-step explanation:

{x}^(2) - 12x + 35 \n {x}^(2) - 7x - 5x + 35 \n = x(x - 7) - 5(x - 7) \n = (x - 7)(x - 5)

17) Eli packed 1,920 peanuts into 8 sacks. He packed an equal number of peanuts in each sack. How many peanuts did he pack into each sack? ​

Answers

Answer:

240

Step-by-step explanation:

you have to divide 1,920 by 8
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