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3 years ago

Which is the value of this expression when m=3 and n=-5?

Mathematics

1 answer:

stiv31 [10]3 years ago

3 0

Answer:

1/8

Step-by-step explanation:

doing math to get the right answer your welcome

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Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s

Lilit [14]

Answer:

$y-2=\displaystyle -\frac{3}{4}(x-1)$

$y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

Step-by-step explanation:

Hi there!

Point-slope form: $y-y_1=m(x-x_1)$ where m is the slope of the line and $(x_1,y_1)$ is a given point

Given that the slope is -3/4, we can plug it into $y-y_1=m(x-x_1)$ as m:

$y-y_1=\displaystyle -\frac{3}{4}(x-x_1)$

We can also plug in the given point (1,2):

$y-2=\displaystyle -\frac{3}{4}(x-1)$

Slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

To write the equation in slope-intercept form, isolate y:

$y-2=\displaystyle -\frac{3}{4}(x-1)\\\\y=\displaystyle -\frac{3}{4}(x-1)+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{3}{4}+2\\\\y=\displaystyle -\frac{3}{4}x+\frac{11}{4}$

I hope this helps!

8 0

2 years ago

Estimate the sum of 9.327 + 5.72 + 4132 to one decimal place

IrinaK [193]

9.327 rounds to 9.3
5.72 rounds to 5.7
4132 rounds to 4132

9.3 + 5.7 + 4132 =
15 + 4132 = 4147

8 0

3 years ago

If you use the amount of flour that was used on Day 4, how many cups of flour will you use?

azamat

I need a photo to help you can you send me one?

6 0

3 years ago

Factor completely m^7n+64mn^2

Serga [27]

Factor completely m^7n+64mn^2

mn(m^6+64n)

3 0

3 years ago

Quick algebra 1 question for 50 points!

saul85 [17]

Answer:

b. -x + y = 0

Step-by-step explanation:

Direct variation:

Direct variation means "y varies directly as x”:

$y \propto x \implies y=kx$

where k is the (non-zero) constant of variation.

To determine which of the given equations represents a direct variation, isolate y for each and compare with the direct variation equation.

Equation a

$y=\dfrac{4}{3}x-2$

This is not a direct variation equation as there is an addition of -2.

Equation b

$-x+y=0$

$\implies y=x$

This is a direct variation equation where the constant of variation is 1.

Equation c

$xy=8$

$\implies y=\dfrac{8}{x}$

This is not a direct variation equation as y is inversely proportional to x.

Equation d

$y=14$

This equation does not include the variable x, and so is therefore not a direct variation equation.

3 0

2 years ago

Read 2 more answers