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3 years ago

Does the table below represent a proportional relationship?

Mathematics

1 answer:

Arturiano [62]3 years ago

7 0

C. Yes, because all the rations of y to x are equal to 3 (: hope this helps

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Keri is simplifying 5·10^−3.

11111nata11111 [884]

Answer:

1. D

2. A

Step-by-step explanation:

Q1. Kerry is simplifying $5\cdot 10^{-3}$

By the definition of negative powers,

$a^{-n}=\dfrac{1}{a^n}$

Hence,

$10^{-3}=\dfrac{1}{10^3}$

So, the first step in simplifying the expression is

$5\cdot 10^{-3}=5\cdot \dfrac{1}{10^3}$

Q2. Given the expression

$\dfrac{8}{10^{-2}}$

First, use the definition of negative powers:

$10^{-2}=\dfrac{1}{10^2}$

Thus,

$\dfrac{8}{10^-2}=\dfrac{8}{\frac{1}{10^2}}=8\cdot 10^2=8\cdot 100=800$

8 0

3 years ago

HELP NOW PLS what is (x+6)

crimeas [40]

x+6 is x+6. It's an expression. Not sure what you need help with.

7 0

3 years ago

Read 2 more answers

Yesterday liam used 20 stripped marbles to fill bags. how many non-stopped marbles did he used to fill up the bags?

777dan777 [17]

The answer is 30 because i had this on a test

5 0

3 years ago

Did anyone take the Linear Functions Unit Test for CCA grade 10?? I could really use the help!!

gulaghasi [49]

Yeah post the questions I'll see if I can answer them

6 0

3 years ago

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and

lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

$f(x) =-0.3x^2 + 2x$

At a horizontal distance of 4 feet, the value of x is 4

i.e. $x = 4$

Substitute 4 for x in f(x).

So, we have:

$f(4) =-0.3(4)^2 + 2(4)$

Evaluate the exponent

$f(4) =-0.3(16) + 2(4)$

Open both brackets

$f(4) =-4.8 + 8$

Add -4.8 and 8

$f(4) =3.2$

Hence, the hose is 3.2 feet above the ground