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3 years ago

Which set of ordered pairs could NOT represent a function?

Mathematics

2 answers:

Kisachek [45]3 years ago

4 0

C does not represents a function

wolverine [178]3 years ago

4 0

Answer:

B (1, 5), (2, 6), (3, 6), (4, 5), (5, 4)

Step-by-step explanation:

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What is the equation of a line when the slope is 7 and the y-intercept is -9.

den301095 [7]

Answer:

y = 7x - 9

Step-by-step explanation:

y = mx+b

m = slope = 7

b = y-intercept = -9

5 0

3 years ago

each month for 6 month, kelsey completes 5 paintings. how many more paintinga does she need to complete before she completed 38

eimsori [14]

She needs to complete 8 more paintings. If you multiply 6 by 5, you get 30. Subtract 30 from 38, you would get 8.

5 0

3 years ago

What expression is equivalent to ^3 square root of 2y^3 times 7 square root of 18y

Mumz [18]

Answer:

$\sqrt[3]{2y^3} * 7\sqrt{18y} = 21(y^{\frac{3}{2}})(2^{\frac{5}{6}})$

Step-by-step explanation:

The question is poorly formatted.

Given

$\sqrt[3]{2y^3} * 7\sqrt{18y}$

Required

Derive an equivalent expression

$\sqrt[3]{2y^3} * 7\sqrt{18y}$

Express 18 as 9 * 2

$\sqrt[3]{2y^3} * 7\sqrt{9 * 2y}$

Split the expression as follows:

$\sqrt[3]{2y^3} * 7\sqrt{9} * \sqrt{2y}$

Take positive square root of 9

$\sqrt[3]{2y^3} * 7*3 * \sqrt{2y}$

$\sqrt[3]{2y^3} * 21 * \sqrt{2y}$

$21*\sqrt[3]{2y^3} * \sqrt{2y}$

The cube root can be rewritten to give:

$21*\sqrt[3]{2}*\sqrt[3]{y^3} * \sqrt{2y}$

$\sqrt[3]{y^3} = y^{3*\frac{1}{3}} = y$

So, we have:

$21*\sqrt[3]{2} * y * \sqrt{2y}$

Rewrite as:

$21y *\sqrt[3]{2} * \sqrt{2y}$

Split $\sqrt{2y$

$21y *\sqrt[3]{2} * \sqrt{2} * \sqrt{y}$

Collect Like Terms

$21y*\sqrt{y} *\sqrt[3]{2} * \sqrt{2}$

Represent in index form

$21y*y^{\frac{1}{2}} *2^\frac{1}{3} *2^\frac{1}{2}$

Apply law of indices

$21*y^{1+\frac{1}{2}} *2^{\frac{1}{3} +\frac{1}{2} }$

$21*y^{\frac{2+1}{2}} *2^{\frac{2+3}{6}}$

$21*y^{\frac{3}{2}} *2^{\frac{5}{6}}$

$21(y^{\frac{3}{2}})(2^{\frac{5}{6}})$

Hence:

$\sqrt[3]{2y^3} * 7\sqrt{18y} = 21(y^{\frac{3}{2}})(2^{\frac{5}{6}})$

6 0

3 years ago

Arpad's roof is shaped like a square pyramid. The square base has side lengths of 55 feet. The height of each triangular face is

shusha [124]

It’s 550. 55x10=55. length times height

5 0

3 years ago

Read 2 more answers

A bus pass costs $9 per week. Which of the following equations shows the total cost in dollars, t, of the bus pass for a certain

Julli [10]

(total cost in dollars) = (cost per week)*(number of weeks)
t = 9*w
t = 9w

----------------------------------------------------------------------------------

Final Answer: Choice B) t = 9w

4 0

3 years ago