3 years ago

How do you solve this?

Mathematics

1 answer:

frosja888 [35]3 years ago

4 0

I know its a long problem but i have to shiw how i got my answer.

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How many years would it take for a person in the united states to eat 855 pounds of apples

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It would take 30 years

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3 years ago

Given f(x)=3x-1, solve for x when f(x)=-7.

ddd [48]

Answer:

x = -2

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 3x - 1

f(x) = -7

Step 2: Solve for x

Substitute: -7 = 3x - 1
Isolate x term: -6 = 3x
Isolate x: -2 = x
Rewrite: x = -2

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3 years ago

What is the equation of the line perpendicular to y=2x+3.14 going through the points (2,4)?

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Answer:

$x+2y-10=0$

Step-by-step explanation:

Consider an equation: $y=mx+c$

Here, m is the slope of the line and c is the y-intercept.

Given equation is $y=2x+3.14$

Here, slope is $m=2$

As product of slopes of two perpendicular lines is equal to $-1$ , slope of the required line is $m_1=\frac{-1}{m}=\frac{-1}{2}$ .

Let $(x_1,y_1)=(2,4)$

Equation of the required line is $y-y_1=m_1(x-x_1)$

$y-4=\frac{-1}{2}(x-2)\\2(y-4)=-1(x-2)\\2y-8=-x+2\\x+2y-8-2=0\\x+2y-10=0$

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3 years ago

Each of the four sets a1, a2, a3, and a4 contains four elements. the intersection of every i of these four sets (2 < i < 4

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Answer:

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Step-by-step explanation:

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3 years ago

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Which counting rule would you use to determine total seating arrangements for a group of 8 people at a table with 6 chairs? Sele

Stolb23 [73]

To determine the number of possible arrangements for 6 out of 8, we should use combinations. That is
ₐC₆ = 8!/(6!2!)

Answer: b. Combination

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3 years ago