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3 years ago

A balloon is 4 ft above the ground. It is released and floats up 3 ft

Mathematics

1 answer:

inessss [21]3 years ago

5 0

Answer:

4+(3 times x)= height of balloon. x = seconds

Step-by-step explanation:

I hope this helps you! :D

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A model stature is 5 in wide. If it was built with a scale of 1 in: 2 ft, then how wide is the real statue?

Gnesinka [82]

Answer:

10 ft.

Step-by-step explanation:

Scale ⇒ 1 in. : 2 ft.

1 in. : 2ft. = 5 in. : x ft. [x is the width of the real statue]
1/2 = 5/x
x = 5 × 2
x = 10 ft.

8 0

1 year ago

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What number is not part of the domain of f(x)= 3/ x+5 (3 over x + 5)

nignag [31]

-5, you never want the denominator to equal zero or else it doesnt exist!

x+5=0
x=-5

7 0

2 years ago

I need help ASAP! I am offering brainiest to whoever answers the question first!!!

lara [203]

-3:1 :) have a nice day!

8 0

3 years ago

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Slope-intercept form of the equation for the line?

vaieri [72.5K]

Answer:

$\large\boxed{y=-\dfrac{3}{10}x+\dfrac{1}{2}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points from the graph (-5, 2) and (5, -1).

Substitute:

$m=\dfrac{-1-2}{5-(-5)}=\dfrac{-3}{10}=-\dfrac{3}{10}$

We have the equation in form:

$y=-\dfrac{3}{10}x+b$

Put the coordinates of the point (5, -1) to the equation:

$-1=-\dfrac{3}{10}(5)+b$

$-1=-\dfrac{3}{2}+b$

$-\dfrac{2}{2}=-\dfrac{3}{2}+b$ add 3/2 to both sides

$\dfrac{1}{2}=b\to b=\dfrac{1}{2}$

4 0

3 years ago

Find the product: (x+9)(x-9) a 18 b. -81 C. - 18 d. x-64

Lilit [14]

Answer:

x^2 -81

Step-by-step explanation:

(x+9)(x-9)

FOIL

first x*x = x^2

outer -9x

inner 9x

last -9*9 = -81

Add them together

x^2 -9x+9x -81

Combine like terms

x^2 -81

5 0

3 years ago

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