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3 years ago

Which function is described by values in the table?

Mathematics

1 answer:

Sveta_85 [38]3 years ago

7 0

One way to approach this problem is to go ahead and find the actual equation in slope-intercept form.

The slope of the line thru (3,6) and (5,4) is m = (6-4) / (3-5), or -2/2, or -1.

Subbing the known values of m, x and y, we get:

4 = -(5) + b. Then b = 9.

The correct equation (representing the data values in the table) is y = -x + 9.

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Marty's class collected $38.00 in a school-wide penny collection contest. If Tommy's class added $8.00 to the amount they collec

Elanso [62]

Answer: $11

Step-by-step explanation:

To have the same:

11+8=19

19×2=38

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2 years ago

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How do I do this question

s344n2d4d5 [400]

The two laws of motion are

$\text{Low:}\ d=v_lt\\\text{Sim:}\ d=v_st$

Since Mr Sim's speed is 15 km/h less that Mr Low's, we have

$\text{Low:}\ d=v_lt\\\text{Sim:}\ d=(v_l-15)t$

Note that the distance d is the same for both equations, because they traveled the same path.

20 minutes is 1/3 of a hour, so at t=1/3 Mr Low traveled the whole distance, while at the same time Mr Sim traveled 4/5 of the distance:

$\text{Low:}\ d=\dfrac{v_l}{3}\\\text{Sim:}\ \dfrac{4d}{5}=\dfrac{(v_l-15)}{3}$

If we multiply Sim's equation by 5/4, we have

$\text{Low:}\ d=\dfrac{v_l}{3}\\\text{Sim:}\ d=\dfrac{5(v_l-15)}{12}$

Since the left hand sides are equal, we equal the right hand side as well:

$\dfrac{v_l}{3}=\dfrac{5(v_l-15)}{12}$

Multiply both sides by 12:

$4v_l=5(v_l-15)$

Expand the right hand side:

$4v_l=5v_l-75 \iff v_l = 75$

Which implies

$v_s=v_l-15=75-15=60$

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3 years ago

What is the answer to this problem

koban [17]

U have both a dog and a cat

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3 years ago

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olya-2409 [2.1K]

$\sqrt[3]{8m}^3$

Set up

$(8m^{\frac{1}{3}})^3$

Convert the radical into a fractional exponent using $\sqrt[n]{x^m} = x^{\frac{m}{n}}$

$8m^{(3 \cdot \frac{1}{3})}$

Use the property that $(x^a)^b = x^{(a \cdot b)}$

$8m$

Simplify

The simplification would be 8m.

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3 years ago

What number is greater than -8.67

Ahat [919]

Answer:

Any number over then 1 is greater than -8.67 and any number less than -8.67is greater as well.

Step-by-step explanation:

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2 years ago

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