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2 years ago

If B (x,y)=(x-3,y+5), what is B(4,7)? Can anyone help me please

Mathematics

1 answer:

UkoKoshka [18]2 years ago

3 0

Answer:

(B (4, 7 ) = (1, 12 )

Step-by-step explanation:

given

B (x, y ) = (x - 3, y + 5 ) , then

B (4, 7 ) = (4 - 3, 7 + 5 ) = (1, 12 )

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Calculator

hodyreva [135]

Answer:

Step-by-step explanation:

x = 8

y = 40

6 0

3 years ago

Explain how the value in the 7in 327,902 will change if you move it to the tens place

jeyben [28]

If "7,000" is moved to the tens place, it would be 70.

Every placement has its corresponding values, thus where even the number 7 is place it is multiplied by its corresponding values (ones, tens, hundreds, etc).

3 0

3 years ago

A cylindrical package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section)

motikmotik

The height of package is 34 inches.

According to the statement

we have given that the perimeter of cylinderical package is 123 inches.

and we have to find the volume of this package.

So,

According to the perimeter

2(Pi)r + h = 123

and then

h = 123 - 2(Pi)r

then the volume become

V = (Pi) r^2h

V= (Pi) r^2 * [ 123 - 2(Pi)r ] = 123 (Pi) r^2 - 2(Pi)r^3

then differentiate it

dV/dr = 246(Pi) r - 6(Pi)r^2

Now take

r(246(Pi) - 6(Pi)r) = 0

then neglect r=0 and then find another value of r.

r = 246(Pi) / 6(pi)

here r=41 then

h = 123 - 2(Pi)r

h = 123 - 2(3.14)41

h = 123 - 2(Pi)r

Then put the value of r then h = 34 inches.

So, The height of package is 34 inches.

Learn more about Volume here brainly.com/question/1972490

#SPJ4

3 0

2 years ago

I feel so stupid, how do you change a fraction into a mix number???

Vlad [161]

Answer:

Divide the numerator by the denominator. Your answer would be the whole number, and the remainder would be your fraction.

I have also clipped a picture from fractionfun.com to make it more clear.

7 0

3 years ago

The height of the snow was 84 inches in the beginning of the week. it melts at a rate of 0.15 inches per hour. how many hours wo

jenyasd209 [6]

Answer:

146.66 hours.

Step-by-step explanation:

Given: Height of snow at the beginning is 84 inches.

Snow melting rate is 0.15 inches per hour.

Now, finding number of hours to reach 62 inches of snow.

First lets find the number of inches reduced.

Reduced inches of snow= $84\ inches - 62\ inches= 22\ inches.$

∴ Reduced inches of snow is 22 inches after melting at 0.15 inches per hour.

Next finding hours to melt 22 inches of snow.

Time= $\frac{total\ size}{melting\ rate}$

⇒ Time= $\frac{22}{0.15} = 146.66\ hours$

Hence, 146.66 hours would it take for the snow to reach 62 inches.

7 0

3 years ago