MATHEMATICS MIDDLE SCHOOL

find the equation in slope-intercept form that descrives a line through (4,-2) with slope -3 A. y = -3x - 2 B. y = -3 x + 4 C. y = -3x + 10 D. y = -3x

Answers

Answer 1

Answer:

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

So far we know the slope and can plug that into the equation like so...

y = -3x + b

Now we must find b

To do that you must plug in the point the line goes through in the x and y of the equation.

(4, -2)

-2 = -3(4) + b

-2 = -12 + b

10 = b

y = -3x + 10

Hope this helped!

~Just a girl in love with Shawn Mendes

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Marco wrote the equation below. Cos ( -π /2) = cos ( 3π / 2)

Which statement best describes Marcos equation?

Answers

Answer:

It is true, because the cosine function has a period of 2π

Step-by-step explanation:

Since, the period of the cos function is 360° ( or 2π radians ), it holds the property of:

$Cos(\theta)=Cos(2\pi +\theta)$

Taking $\theta$ as $-(\pi)/(2)$ , $(2\pi + \theta)$ is equal to $2\pi + (-(\pi)/(2))\n=2\pi - (\pi)/(2)\n=(4\pi-\pi)/(2)\n=(3\pi)/(2)$

The equation is true!

Note: The cos function is even function

Hence, the equation is true, because the cosine function has a period of 2π, NOT because the cosine function is ODD, which it is not!!

Evaluate {44-[8+(38-14)-10]+12}-7

Answers

27 is the answer to the question above

it is 27 bro hope u like it

Please help i’m very confused

Answers

Answer:

A = ¹⁰⁷⁵/₁₆ = 67 ³/₁₆

Step-by-step explanation:

Area of a rectangle: A = b*h, where b = length of base and h = length of height

Plug in: A = 8 ¹/₄ * 10 ³/₄

Turn to improper fraction: A = ²⁵/₄ * ⁴³/₄

Multiply: A = ¹⁰⁷⁵/₁₆ = 67 ³/₁₆

Answer:

88 $(11)/(16)$

Step-by-step explanation:

The area of a rug is found by multiplying b*h. Just multiply 8 1/4 by 10 3/4 to get 88 11/16.

There were a total 8 basketball games a month. The season is played for 2 months . How many basketball games are in the seasons?

Answers

Answer:

There are 16 games in a season.

Step-by-step explanation:

8 games per month

The season is played for 2 months.

There are 2 * (Games per month) games in a season.

Substitution

There are 2 * (8) = 16 games in a season.

There are 16 games in a season. Hope this helps :)

Maria's math test had 25 questions she got 84% correct how many did she get wrong

Answers

Maria got 4 answers wrong as per linear equation.

What is a linear equation?

A linear equation is an equation that has a variable with the highest power of 1. A linear equation may consists of multiple variable. However, the highest power of any variable will be 1.

Given, Maria's math test had 25 questions.

She got 84% correct.

Therefore, she got wrong

= (100 - 84)%

= 16%

Now, the number of questions she got wrong is

= 25 × 16%

= 4

Learn more about linear equation here: brainly.com/question/10047053

SPJ2

$(x)/(25)=84% \n (x)/(25)=.84 \n 25( (x)/(25))=(.84)(25) \n x=21$
Maria got 21 correct.

Number wrong = Total - Number right
y = 25 - 21
y = 4

Maria got 4 wrong.

Hope this helps!

Is 9.48 an irrational number?