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3 years ago

Can anyone help with these answers

Mathematics

1 answer:

cricket20 [7]3 years ago

6 0

Um this is not middle school wow I'm shocked

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Y=2x+1

yan [13]

Answer:

(1) 2 (2) (-1/2,0) (3) (0,1)

Step-by-step explanation:

The slope of the line is the number times x. This equation is y=mx+b, where m is the slope and b is the y-intercept. In this case, m is 2, so we have our slope. The y-intercept is easy, as we already know it to be (0,1). The x-intercept is the point where the line hits x when y=0. To solve for the x-intercept, we set y to 0 and solve. We have 0=2x+1. First, we subtract 1 from both sides and get -1=2x. Next, to get x by itself, divide both sides by 2. Now we have -1/2=x. Now we have our x coordinate for our x-intercept. Because of this, we get (-1/2,0) as our x-intercept.

3 0

3 years ago

What is the zero of the function below?

Ymorist [56]

x = 1

Step-by-step explanation:

Given data: $f(x)=3 \sqrt{x+3}-6$

Recall: If f(x) = 0, then x is called the zero of the function.

To find zero of the function, take f(x) = 0.

$\Rightarrow 3 \sqrt{x+3}-6=0$

Add 6 to both sides of the equation.

$\Rightarrow 3 \sqrt{x+3}=6$

Divide both sides of the equation by 3.

$\Rightarrow \sqrt{x+3}=2$

Taking square on both sides of the equation.

$\Rightarrow(x+3)=2^{2}$

⇒ x + 3 = 4

⇒ x = 1

Hence, the zero of the function is 1.

7 0

4 years ago

Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve

IRINA_888 [86]

Answer:

Step-by-step explanation:

Total students he surveyed: 27

Amount that found it something OTHER than easy: 14 (11 moderate + 3 difficult)

This means that $\frac{14}{27}$ found it something other than easy

Multiply that by 162 to find the proportion for the larger population:

162 * (14/27), and we get 84.

4 0

2 years ago

Find the slope of (0,1) and (2,7)

gavmur [86]

Slope is $\frac { y_{2} - y_{1}}{ x_{2} - x_{1}}$

if we plug in your coordinates we get:
$\frac { y_{2} - y_{1}}{ x_{2} - x_{1}} \\ \frac {7-1}{2-0} \\ \frac {6}{2} \\ 3$

Therefore, the slope of (0,1) and (2,7) is 3.

4 0

3 years ago

Read 2 more answers

For membership to an athletic club, it costs $110 to join and $25 per month of membership. Write an equation to show the situati

lord [1]

Answer:

110 + 25x = Total Cost (or any type of variable needed, like a,b,c, etc.)

Step-by-step explanation:

Since the monthly fee occurs more than once, and we don't have the number of months, we put an x to represent the amount of months. The $110 is the one time additional fee for the membership, so it doesn't need a variable.

7 0

4 years ago