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3 years ago

Find the slope of the line.

Mathematics

1 answer:

hammer [34]3 years ago

7 0

Answer:

Slope (m) = 3/2

Step-by-step explanation:

This equation is in standard form (y=mx+b) and the m is where the slope always is.

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What is vaule of y when x=4'5

Degger [83]

Answer:

$y = 2.096$ or $y = \frac{2\sqrt5+6}{5}}$

Step-by-step explanation:

Given

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

$x = \frac{4}{5}$

Required

Find y

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

Substitute $x = \frac{4}{5}$

$y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5$

$y = 5 + \sqrt{4/5} + 0.2 - 4$

Collect like terms

$y = \sqrt{4/5} + 5 + 0.2 - 4$

$y = \sqrt{\frac{4}{5}} + 1.2$

Split the surd

$y = \frac{\sqrt4}{\sqrt5}} + 1.2$

$y = \frac{2}{\sqrt5}} + 1.2$

Rationalize

$y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2$

$y = \frac{2\sqrt5}{5}} + 1.2$

Take LCM and add

$y = \frac{2\sqrt5+1.2*5}{5}}$

$y = \frac{2\sqrt5+6}{5}}$

or solve as:

$y = \frac{2*2.24+6}{5}}$

$y = \frac{10.48}{5}$

$y = 2.096$

7 0

3 years ago

A truck traveled 205 miles in 3/12 hours. The distance is the product of the rate and the time. To the nearest tenth, what is th

Rufina [12.5K]

Distance = rate*time, or

distance = (average speed)* time, so

average speed = distance/ time.

average speed = 205 mi / (3/12) h = 205 mi/ (1/4)h = 205*4 mi/h=

= 820 mi/h

It is looks to high for speed of the truck,

probably time should be 3.12 h,

then

average speed = 205 mi / (3.12) h ≈ 65.71 mi/h.

That looks close to real life.

8 0

3 years ago

Simplify the expression -3 (4x -2) - 2x

raketka [301]

Answer:

-14x+6

Step-by-step explanation:

-3(4x-2)= -2x = -14x+6

-3(4x -2) -2

-12x+6 -2x

5 0

3 years ago

Do this worksheet step by step if someone do I will her or him brainliest

umka2103 [35]

1a. <
1b. <
1c. >
2a. >
2b. <
2c. >
3a. <
3b. <
3c. >

6 0

3 years ago

Solve this equation show work 1 2/5× =7

lara [203]

Answer:

x=5

Step-by-step explanation:

To find x, you need to divide 7 by the coefficient which is 1.4. 7/1.4=5

4 0

4 years ago