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3 years ago

A scientist used 2 gallons of liquid for every 3 hours he works. He uses __ of a gallon each hour he works.

Mathematics

1 answer:

tiny-mole [99]3 years ago

8 0

He uses 2/3 of a gallon each hour he works.

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PLEASEE HELPP MEEEE!!!!!!!!! what is the value of x?

Dmitriy789 [7]

Answer:15

Step-by-step explanation:

27+x=42 alternate angles are equal

Collect like terms

x=42-27

x=15

5 0

4 years ago

How can u find the slope of a equation

Tomtit [17]

Answer:

It is the rate of change (how far it goes up or how far it goes down)

Step-by-step explanation:

The slope of a line is a measure of how fast it is changing. This can be for a straight line -- where the slope tells you exactly how far up (positive slope) or down (negative slope) a line goes while it goes how far across. Slope can also be used for a line tangent to a curve. Or, it can be for a curved line when doing Calculus, where slope is also known as the "derivative" of a function. Either way, think of slope simply as the "rate of change" of a graph

Example: if you have a slope of 2 your equation would be y=2x+1

You would always do rise over run. rise over run means when you put your slope in a fraction the numerator would always go up or down and the denominator would be run and run means you would go left or right. it all depends on if it is positive or negative.

Hope this helps good luck @(^_^)@

7 0

3 years ago

Solve each equation, if possible. Write irrational numbers in simplest radical form. Describe the strategy you used to get your

fomenos

For the answer to the question above, I'll provide my solutions below.
x² + 4 = 0
 - 4 - 4
 x² = -4
 x = +2i

x² - 6x + 1 = 0
x = -(-6) +/- √((-6)² - 4(1)(1))
 2(1)
x = 6 +/- √(36 - 4)
 2
x = 6 +/- √(32)
 2
x = 6 +/- 2√(2)
 2
x = 3 + √(2)
x = 3 + √(2) x = 3 - √(2)
I hope this helps.

4 0

3 years ago

Read 2 more answers

20 POINTS! pls help me im confused. its answer choice

inessss [21]

Answer:

y ≤-1/2 x-1

y < -4x+25

Step-by-step explanation:

The y intercept is -1

The slope is negative since the line goes down from left to right

The line is y = -1/2 x -1

The line is solid so there is an equals in the inequality

The graph is shaded below the line

y ≤-1/2 x-1

Question 5

The y intercept is 25

The slope is negative since the line goes down from left to right

The slope is (y2-y1)/ (x2-x1) = (49-25)/(-6-0) = 24/-6 = -4

The line is y = -4 x +25

The line is dotted so there is NOT an equals in the inequality

The graph is shaded below the line

y < -4x+25

6 0

3 years ago

Find the perimeter of △ABC with vertices A(−5, −5), B(3, −5), and C(−5, 1).

Nitella [24]

Answer:

Perimeter: 24 u

Step-by-step explanation:

In order to find the perimeter of the triangle you have to find the distance between the vertices using the distance formula and add all the distances:

Distance AB

$d=\sqrt{ ( x_{2} - x_{1} )^{2} + ( y_{2} - y_{1} )^{2} } \\d=\sqrt{ ( 3 - (-5) )^{2} + ( (-5) - (-5) )^{2} } \\d=\sqrt{ ( 3+5 )^{2} + ( -5+5 )^{2} } \\d=\sqrt{ (8)^{2} + ( 0 )^{2} } \\d=\sqrt{ 64 } \\d=8$

Distance BC

$d=\sqrt{ ( x_{2} - x_{1} )^{2} + ( y_{2} - y_{1} )^{2} } \\d=\sqrt{ ( -5 - 3 )^{2} + ( 1 - (-5) )^{2} } \\d=\sqrt{ ( -8 )^{2} + ( 1+5 )^{2} } \\d=\sqrt{ (-8)^{2} + ( 6 )^{2} } \\d=\sqrt{64+36} \\d=\sqrt{100}\\d=10$

Distance CA

$d=\sqrt{ ( x_{2} - x_{1} )^{2} + ( y_{2} - y_{1} )^{2} } \\d=\sqrt{ ( -5 - (-5) )^{2} + ( 1 - (-5) )^{2} } \\d=\sqrt{ ( -5+5 )^{2} + ( 1+5 )^{2} } \\d=\sqrt{ (0)^{2} + ( 6 )^{2} } \\d=\sqrt{36} \\d=6$

Adding all the 3 distances we have that:

P=8+10+6=24 u

6 0

3 years ago