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3 years ago

14

Construct an equation for the expression: 3 less than 2 times a number is 7. Show the solution to the equation and prove your so

lution to be true through your work.

1 answer:

ElenaW [278]3 years ago

4 0

Answer:

5 x 2 -3 = 7

Step-by-step explanation:

i mean.... thats all

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Write the equation of the line in slope intercept form for the lone with a slope of 1/3 and a y intercept of (0,4)

Anastasy [175]

Answer:

$y=\frac{1}{3} x+4$

Step-by-step explanation:

Slope-intercept from is:

$y=mx+b$

m is the slope and b is the y-intercept. Insert slope:

$y=\frac{1}{3}x+b$

The y-intercept is at point (0,4). The y-intercept is when x equals 0, so take the value of y and insert into the equation:

$y=\frac{1}{3} x+4$

Finito.

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2 years ago

1. Calculate the variance of the set of data to two decimal places.

kkurt [141]

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2 years ago

F(x) = 4x2 – 10x + 2<br> Find f(-7)

eimsori [14]

Answer:

f(-7) = 268

Step-by-step explanation:

f(x) = 4x^2 – 10x + 2

Let x = -7

f(-7) = 4(-7)^2 – 10(-7) + 2

Exponents first

f(-7) = 4(49) – 10(-7) + 2

Multiply

f(-7) = 196 + 70 + 2

f(-7) = 268

8 0

2 years ago

Read 2 more answers

Write an equation of the line that has a slope of 2 and y-intercept 1 in slope-intercept form.

Vlada [557]

Y = mx + b

in this case m = 2 and b = 1 so
equation
y =2x + 1

hope this helps

4 0

3 years ago

Read 2 more answers

Ex. 11 An apple computer has a retail price of $1000. Jim's House of Electronics is having a "20%-off sale",

Elina [12.6K]

He would have to pay $560 because if you take 20% off of the computer using the equation 1000 - (1000 * 0.20) you get 800. This means that the 30% coupon is applied to $800, so using the same template as the equation above, we can do 800 - (800 * 0.30) to get a final answer of 560.

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1 year ago