What is 3/8 times 4/5

Answers

Answer 1

Answer:

12/40 non simplified and 3/10 simplified.

Step-by-step explanation:

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Multiply. Express your answer in standard form. (x² - 2x + 3)(-2x² + 4x – 1)

Answers

The answer to your equation (x² - 2x + 3)(-2x² + 4x – 1) is...
2x^4 + 8x^3 - 15x^2 + 14x - 3

(x² - 2x + 3)(-2x² + 4x – 1) = 2x^4 + 8x^3 - 15x^2 + 14x - 3

Using technology, we determined that Mary’s investment account can be modeled by the function, M(x) = 3.03(2.18)^x in thousands of dollars. What was Mary’s initial investment?$3.03
$4.96
$3,030
$4,960

Answers

Initial investment can be calculated by setting the value of x to zero since it is an initial value where time is zero. Using the given model, we calculate as follows:

M(x) = 3.03(2.18)^x
M(0) = 3.03 (2.18)^0
M(0) = 3.03 <---------FIRST OPTION

The standard form of writing exponential function is given as:

y = ab^x. Mary’s initial investment is $3.03

Exponential equations

The standard form of writing exponential function is given as:

y = ab^x

where

a is the base

x is the exponent

Given the Mary’s investment account can be modeled by the function M(x) = 3.03(2.18)^x

Her initial investment is the point where x = 0

Substitute

M(x) = 3.03(2.18)^x

M(0) = 3.03(2.18)^0
M(0) = 3.03

Hence Mary’s initial investment is $3.03

Learn more on exponential function here: brainly.com/question/12940982

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8TH GRADE MATH
g(3)=

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Answer:

Step-by-step explanation:

Michael is 4 times as old as Brandon and is also 27 years older than Brandon. how old is Brandon

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let's represent Brandon's age by x and Michael is 4 times as old as Brandon so 4x andx+ 27. The equation is
4x=x+27 Therefore Brandon is 9 years old.
4x-x=x-x+27 4x=4*9=36
3x=27 x+27=9+27=36
3x/3=27/3
x=9

The gap is selling shirts for 30% off the original price. The shirts are on sale for $22.40. What was the original price of the shirt?

Answers

If you would like to know what was the original price of the shirt, you can calculate this using the following steps:

30% + 100% = 130%

130% of $22.40 = 130% * 22.40 = 130/100 * 22.40 = $29.12

The original price of the shirt was $29.12.

Eduardo rented a bike from James' Bikes. It cost $19 plus $6 per hour. If Eduardo paid $49 then he rented the bike for how many hours?

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So to solve this, you would have to write the equation, which is 49=6x+19

Then solve your equation.

49=6x+19
-19 -19
30=6x
/6 /6

5=x

So he rented it for 5 hours.