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3 years ago

What expression represents a number that is 1/4 as great as 10-2

Mathematics

1 answer:

PIT_PIT [208]3 years ago

7 0

Answer: (10-2) + 1/4

Step-by-step explanation: This expression is 10-2 which si 5 and then 1/4 as great would be bigger than that so you add.

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What is the equation of this graphed line?

barxatty [35]

Answer:

$y=-\frac{1}{3}x-5$

Step-by-step explanation:

Given:

The two points on the line are:

$(x_1,y_1)=(-6,-3)\\(x_2,y_2)=(6,-7)$

Now, for a line with two points on it, the slope of the line is given as:

$m=\frac{y_2-y_1}{x_2-x_1}$

For the points $(x_1,y_1)=(-6,-3)\ and\ (x_2,y_2)=(6,-7)$ , slope is:

$m=\frac{-7-(-3)}{6-(-6)}\\m=\frac{-7+3}{6+6}\\m=\frac{-4}{12}=-\frac{1}{3}$

Now, for a line with slope 'm' and a point $(x_1,y_1)$ on it is given as:

$y-y_1=m(x-x_1)$

Plug in all the values and determine the equation of the line. This gives,

$y-(-3)=-\frac{1}{3}(x-(-6))\\\\y+3=-\frac{1}{3}(x+6)\\\\y+3=-\frac{1}{3}x-\frac{1}{3}\times 6\\\\y+3=-\frac{1}{3}x-2\\\\y=-\frac{1}{3}x-2-3\\\\y=-\frac{1}{3}x-5$

Therefore, the equation of the line is:

$y=-\frac{1}{3}x-5$

4 0

3 years ago

Which of the following is not a possible r-value -0.3 -1.6 0.8 0.3

Sliva [168]

Answer: -1.6 is not a possible r-value.

Step-by-step explanation:

R-values range from -1 to +1. Out of all these numbers, -1.6 does not belong. Hence, -1.6 is not a r-value.

3 0

3 years ago

Sanya has a piece of land which is in the shape of a rhombus. She wants her one daughter and one son to work on the land and pro

viva [34]

Answer:

9600 m2

Step-by-step explanation:

6 0

3 years ago

What is this? Please answer with an explanation

Pie

Answer:

Step-by-step explanation:

1. in order to calculate all the required values, it needed to solve:

$\sqrt{x-5} \geq 0; \ \ x\geq 5.$

2. x≥5 means, that x∈[5;+∞), where beginnig is '5'.

3 0

3 years ago

Three of the expressions will give the amount that remains after t years of a certain radioactive substance. Which expression is

MakcuM [25]

Answer:

The answer is D

Step-by-step explanation:

4 0

4 years ago