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3 years ago

15 3/8+756- What is the answer

Mathematics

1 answer:

evablogger [386]3 years ago

8 0

Answer: 771 3/8

Step-by-step explanation:

15 3/8+756

we can apply the assosiative propery and do 15+756+3/8

so 15+756= 771

so finally you do 771+3/8=771 3/8

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BRAINLY!!!- if a=7, b=8, and c=9.2 is this a right triangle? why?

Travka [436]

Answer:

Step-by-step explanation:

If this were a right triangle we would assume the Pythagorean Theorem to prove it

$a^{2} +b^{2} =c^{2}$

$7^{2} +8^{2} =9.2^{2}$

this gives us

49+64=84.64

this is 143=84.64 and therefore not equal and not a right triangle

7 0

3 years ago

The set of ordered pairs represents a function. Write a rule that represents the function.

Furkat [3]

Answer:

y = 3x^3 is the rule representing the function.

Step-by-step explanation:

There are 4 points given.

(0,0), (1,3), (2,24), (3,81), (4,192)

We are asked to find the function or rule connecting x and y

On seeing the pair, first let us find y/x

We observe that y is a multiple of 3. Let us find the values of y/3

y/3 = 0, 1, 4, 9, 16

= 0^2,1^2,3^2,4^2,....

i.e. y/3 is the square of x.

Hence relation is y = 3x^2

7 0

3 years ago

Let f(x)=4+3x and g(x)=x^2-3. find each function value: (f+g)(-4)

dem82 [27]

Answer:

Step-by-step explanation:

You are going to want to substitute the x of the function f(x) with the function of g(x) and replace the x in g(x) with -4

(f+g)(-4) = 4+3((-4)^2-3)

=43

hope this helped!

4 0

2 years ago

Read 2 more answers

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vlada-n [284]

Answer:

the answer is b

Step-by-step explanation:

7x^2+6x-9x-6x^2+15

combine like terms

7x^2-6x^2= x^2

6x-9x= -3x

x^2-3x+15

6 0

3 years ago

Water is leaking out of an inverted conical tank at a rate of 9,500 cm3/min at the same time that water is being pumped into the

raketka [301]

Answer:

Step-by-step explanation:

rate of leaking water = 9500 cm³/min

height of tank, H = 6 m = 600 cm

diameter of tank, = 4 m

radius of tank, R = 2 m = 200 cm

dh/dt = 20 cm/min

at any time, h = 2 m Let at that time radius of the tank is r.

According to the diagram

R / H = r / h

200 / 600 = r / h

r = h/3

The volume of tank is given by

$V = \frac{1}{3}\pi\times r^{2}h$

$V = \frac{1}{27}\pi\times h^{3}$

Differentiate with respect to t

$\frac{dV}{dt} = \frac{1}{9}\pi\times h^{2} \frac{dh}{dt}$

$\frac{dV}{dt} = \frac{\pi}{9}\times 200^{2}\times 20$

dV/dt = 279111.11 cm³/min

This is the volume of water increasing per minute in the tank.

Let C be the rate of volume of water pumped into the tank.

So, C = 279111.11 + 9500

C = 288611.11 cm³/min

5 0

2 years ago