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White raven [17]

4 years ago

9

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1 answer:

IRINA_888 [86]4 years ago

3 0

1. Answer is b.

2. Answer is c.

3. Answer is a.

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The table shows a linear function. <br><br> Which equation represents the function.

mote1985 [20]

Answer:

$\large\boxed{f(x)=\dfrac{3}{2}x-1}$

Step-by-step explanation:

$\text{The slope-intercept formula:}\\\\y=mx+b\\\\m\ -\ slope\\b\ -\ y-intercept\\\\\text{The formula of a slope:}\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\\\\\text{From the table we hve two points (0, -1) and (2, 2). Substitute:}\\\\m=\dfrac{2-(-1)}{2-0}=\dfrac{3}{2}$

$\text{Therefore the equation is}\ f(x)=\dfrac{3}{2}x-1\\\\\text{Check for the point (4, 5):}\\\\f(4)=\dfrac{3}{2}(4)-1=(3)(2)-1=6-1=5\qquad\ CORRECT$

7 0

3 years ago

A scale has a percent error of 5%. The actual mass of a rock is 258 g.

Semmy [17]

The scale is likely to show the mass is either 270.9g or 245.1g

Step-by-step explanation:

Actual mass = 258g

Percent error = 5% = ±0.05

Mass shown by scale = Actual mass*percent error

$Mass\ shown\ by\ scale=258*(\±0.05)\\Mass\ shown\ by\ scale=\±12.9g$

Therefore,

Mass shown by scale = 258+12.9 , Mass shown by scale = 258-12.9

Mass shown by scale = 270.9g , Mass shown by scale = 245.1g

The scale is likely to show the mass is either 270.9g or 245.1g

Keywords: error, percentage

Learn more about percentages at:

#LearnwithBrainly

6 0

3 years ago

Help please !! thank u

Vlad1618 [11]

Answer:

I think this is pythagorean theorem but I'm not sure what I got was 15 for the answer

7 0

3 years ago

Read 2 more answers

Yx20=30 help help help

Verdich [7]

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>✌</em>

4 0

4 years ago

Read 2 more answers

88 + 10 = 98 × 30 + 100

Nataly_w [17]

Answer:

<u><em>1520/49</em></u>

Step-by-step explanation:

88+10= 98

<u><em>next you have to solve the numbers on the right side using the order of operations.</em></u><u><em> </em></u><u><em>(PEMDAS)</em></u>

98 x 30= 2940
2940 + 100= 3040

<em>now you have solved the equations on both sides of the equal sign...</em>

<em>98=3040</em>

<em>the final step is to divide the numbers in order to get the solution...</em>

3040/ 98 = 31.02040816

<em>*if you need it in fraction form it is </em>1520/49

<em>Hope I helped answer the question!</em>

7 0

3 years ago