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2 years ago

Plz help ASAP, thanks

Mathematics

1 answer:

astraxan [27]2 years ago

6 0

Answer:

Step-by-step explanation:

8·15·h=1440

120·h=1440

$\frac{120h}{120}$ = $\frac{1440}{120}$ (Divide both sides by 120)

h=12

h stands for height

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Jon makes a map of his neighborhood for a presentation. The scale of his map is 1 inch:125 feet. How many feet do 4 inches

kap26 [50]

Answer:

Part A) $500\ ft$

Part B) $2\ in$

Step-by-step explanation:

we know that

The scale of the map is $\frac{1}{125} \frac{in}{ft}$

That means

1 in on the map represent 125 ft in the real

Part A) How many feet do 4 inches

using proportion

$\frac{1}{125} \frac{in}{ft}=\frac{4}{x} \frac{in}{ft}\\ \\x=125*4\\ \\x=500\ ft$

Part B) Jon lives 250 feet away from Max. How many inches separate Jon’s home from Max’s on the map?

using proportion

$\frac{1}{125} \frac{in}{ft}=\frac{x}{250} \frac{in}{ft}\\ \\x=250/125\\ \\x=2\ in$

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3 years ago

If I’m tiling a floor of a 10’ x 10’ room and find that 100 tiles will be needed how many tiles will be needed to tile a floor o

oksano4ka [1.4K]

Answer:

400 Tiles

Step-by-step explanation:

20 x 20 = 400

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3 0

3 years ago

Read 2 more answers

Suppose that f(5) = 3, f '(5) = 6, g(5) = −5, and g'(5) = 2. Find the following values. (a) (fg)'(5) (b) f g '(5) (c) g f '(5)

baherus [9]

Answer: a) -24

b) $-\frac{36}{25}$

c) 4

Step-by-step explanation:

a) To determine the value of (fg)', use the product rule of derivative, i.e.:

(fg)'(x) = f'(x)g(x) + f(x)g'(x)

(fg)'(5) = f'(5)g(5) + f(5)g'(5)

(fg)'(5) = 6(-5) + 3(2)

(fg)'(5) = -24

b) The value is given by the use of the quotient rule of derivative:

$(\frac{f}{g})'(x)=\frac{f'(x)g(x)-f(x)g'(x)}{[g(x)]^2}$

$(\frac{f}{g})' (5)=\frac{f'(5)g(5)-f(5)g'(5)}{[g(5)]^2}$

$(\frac{f}{g})'(5)=\frac{6(-5)-3(2)}{(-5)^{2}}$

$(\frac{f}{g})'(5)=\frac{-36}{25}$

c) $(\frac{g}{f})'(5)=\frac{g'(5)f(5)-g(5)f'(5)}{[f(5)]^{2}}$

$(\frac{g}{f})'(5)=\frac{2(3)-(-5)(6)}{3^{2}}$

$(\frac{g}{f})'(5)=\frac{36}{9}$

$(\frac{g}{f})'(5)=4$

7 0

2 years ago

Hi there can you please help me <img src="https://tex.z-dn.net/?f=t%20%3D%20%20%5Csqrt%7B%20%5Cfrac%7Bab%20-%20s%7D%7Br%2

Tamiku [17]

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3 years ago

Who ever helps me on this and is correct will be marked brainlist !

dangina [55]

Answer:

y=3x^2 - 4

Step-by-step explanation:

3 0

2 years ago

Plz help ASAP, thanks​

Plz help ASAP, thanks