2 years ago

Tlus Reduce answers to their lowest terms and mixed forms. 5 + 7

Mathematics

1 answer:

MissTica2 years ago

5 0

Answer:

41/28

Step-by-step explanation:

mixed form is 13/28*1

follow me please.

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What is the surface area?

loris [4]

I believe it is 1250
Explanation: Area of a triangle=1/2bh-1/2•20•30
Area of square=bh-25•25
Add your answers together then you get 1250

7 0

3 years ago

Gravel is being dumped from a conveyor belt at a rate of 15 ft3/min, and its coarseness is such that it forms a pile in the shap

gayaneshka [121]

Answer:

0.13 ft/min

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=15ft^3/min$

We have to find the increasing rate of change of height of pile when the pile is 12 ft high.

Let d be the diameter of pile

Height of pile=h

d=h

Radius of pile,r= $\frac{d}{2}=\frac{h}{2}$

Volume of pile= $\frac{1}{3}\pi r^2 h=\frac{1}{12}\pi h^3$

$\frac{dV}{dt}=\frac{1}{4}\pi h^2\frac{dh}{dt}$

h=12 ft

Substitute the values

$15=\frac{1}{4}\pi(12)^2\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{15\times 4}{\pi(12)^2}$

$\frac{dh}{dt}=0.13ft/min$

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3 years ago

I REALLY NEED HELP PLZ :(((((

liberstina [14]

Answer:

Where is the picture?

Step-by-step explanation:

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3 years ago

Find the simple interest: Principal: $650 Interest Rate: 14% Time: 4 years

andrew11 [14]

Answer:

292.50 dollars

Step-by-step explanation:

P = 650 is the the principal.

r = 0.09 is the interest rate in decimal form.

t = 5 is the number of years.

i = 650*0.09*5

i = 292.50 is the simple interest.

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2 years ago

What is the slope of this line: y=-4x-9

Katen [24]

Answer:

-4

Step-by-step explanation:

y=-4x-9

y=mx+b

m=slope

3 0

3 years ago