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3 years ago

Help out for these two questions please

Mathematics

1 answer:

attashe74 [19]3 years ago

8 0

Answer:

23 - A

24 - x = -3 and x = 1

Step-by-step explanation:

Hey There!

So if you didnt know the " zeroes" are the coordinates of where x=0

For the first one the zeroes would be 1 because that's where the line is at x=0

For the second one the zeroes would be x=-3 and x=1 because that's where x=0 if that makes sense

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An Italian sausage is 9 inches long. The chef needs to cut it into 2/3 inch pieces. How many pieces will he be able to cut?

Pavel [41]

12 pieces i think sorry for the uncertainty

6 0

3 years ago

Find the equation of the line that passes through the point of intersection of x + 2y = 9 and 4x -2y = -4 and the point of inter

Rudik [331]

Answer:

$y=-6x+10$

Step-by-step explanation:

The point of intersection of

$x+2y=9...eqn1$

and

$4x-2y=-4...eqn2$

is the solution of the two equations.

We add equation (1) and equation(2) to get,

$x+4x+2y-2y=9+-4$

$\Rightarrow 5x=5$

$\Rightarrow x=1$

We put $x=1$ into equation (1) to get,

$1+2y=9$

$\Rightarrow 2y=9-1$

$\Rightarrow 2y=8$

$\Rightarrow y=4$

Therefore the line passes through the point, $(1,4)$ .

The line also passes through the point of intersection of

$3x-4y=14...eqn(3)$

and

$3x+7y=-8...eqn(4)$

We subtract equation (3) from equation (4) to obtain,

$3x-3x+7y--4y=-8-14$

$\Rightarrow 11y=-22$

$\Rightarrow y=-2$

We substitute this value into equation (4) to get,

$3x+7(-2)=-8$

$3x-14=-8$

$3x=-8+14$

$3x=6$

$x=2$

The line also passes through

$(2,-2)$

The slope of the line is

$slope=\frac{4--2}{1-2} =\frac{6}{-1}=-6$

The equation of the line is

$y+2=-6(x-2)$

$y+2=-6x+12$

$y=-6x+10$ is the required equation

4 0

4 years ago

How to find rationalizing factor of class 9

Mrrafil [7]

Answer:

$\sqrt[5]{a^{3} b^{2}c}$

Step-by-step explanation:

Rationalization factor of $\sqrt[5]{a^2 b^3 c^4}$

$= \sqrt[5]{a^{5-2} b^{5-3}c^{5-4}}\\= \sqrt[5]{a^{3} b^{2}c^{1}}\\= \sqrt[5]{a^{3} b^{2}c}\\$

8 0

3 years ago

A hiker discovers a skull that contains 41% of its original amount of C-14. Find the age of the skull to the nearest year

snow_tiger [21]

We need the half-life of C-14 which is 5,730 years.
Now, we will need a half-life equation:
elapsed time = half-life * log (bgng amt / ending amt) / log 2
We'll say beginning amount = 100 and ending amount = 41
elapsed time = 5,730 * log (100/41) / log 2
elapsed time = 5,730 * log ( 2.4390243902 ) / 0.30102999566
elapsed time = 5,730 * 0.38721614327 / 0.30102999566
elapsed time = 5,730 * 1.2863041851 
elapsed time = 7,370.523 years

Source:
http://www.1728.org/halflife.htm

3 0

3 years ago

I NEED HELP PLZZZZZZ THIS IS MAJOR PLZZZZZZ HELP ! ! !

Anettt [7]

The possibility of landing on yellow would be 8/72 times because 1/9=x/72.
9 times 8 is 72 so 8 times 1 is 8/72. 1/9 is from the 1+7+1=9. 1/9.
The answer is 8/72 or 1/9.

6 0

4 years ago