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Yanka [14]
4 years ago
11

Evaluate 6 + 3b if b = 7

Mathematics
1 answer:
antoniya [11.8K]4 years ago
5 0

Step-by-step explanation:

6+3b=6+3(7)=6+21=27

Very easy

<( ̄︶ ̄)><( ̄︶ ̄)><( ̄︶ ̄)><( ̄︶ ̄)>

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Option 1: $30 an hour plus a nonrefundable deposit of $50
Aleks [24]

Answer:

to be honost i am in 8th grade but i realy like you and your the first person i like in a lot of time

Step-by-step explanation:


4 0
4 years ago
Consider the following.y = 5xe?x, y = 0, x = 2; about the y-axis(a) Set up an integral for the volume V of the solid obtained by
Effectus [21]

Answer:

The volume for the solid of revolution is V=\displaystyle 10\pi\int_0^2 x^2e^x\, dx and its value is 401.43623.

Step-by-step explanation:

Since the function is rotating over the y-axis and it is a function in terms of x we can use Shell integration which general formula is given by

V=2\pi \int\limits^a_b {x f(x)} \, dx

a) Setting up the integral.

We are given one end point for x which is x = 2, but we are not given the other, so we can set y = 0 on the given equation to get:

0  = 5xe^x

Notice that the exponential function is not going to be equal to 0, so we get the other endpoint for the interval as

0 = 5x

which give us

x=0

Thus we integate from x = 0 to 2, so we will get:

V=\displaystyle 2\pi\int_0^2 x (5x)e^x\, dx

And we can simplify that to

V=\displaystyle 10\pi\int_0^2 x^2e^x\, dx

b) Using a calculator to evaluate the integral.

We can use a calculator to write the integral including the interval to get:

V = 20 \left(e^2-1\right) \pi

And its value rounded to 5 decimal places is

V=401.43623

7 0
4 years ago
PLEASE ANYONE I NEED HELP
iren2701 [21]

Answer:

Number 1, or letter H should be 3 and 3.

Step-by-step explanation:

There's 1 hamburger, 1 hot dog and 1 chicken sandwich. Sandwich wise it's 3.

There's 1 cola, 1 diet cola and 1 lemonade, thus making it 3 as well.

8 0
2 years ago
Need help with this please
ANEK [815]

Answer:

It's the first choice:

-12w^2z^2 + 8w^2z^2 -6z^3w

Step-by-step explanation:

-2wz( 6wz - 4wz + 3z^2)

= -12w^2z^2 + 8w^2z^2 -6z^3w

4 0
4 years ago
How would you write this inequality in words? 42-J&lt;12
Pani-rosa [81]

Answer:

forty two minus J is less then twelve

Step-by-step explanation:

the less than symbol is small on the left and big on the right

the greater than symbol is big on the left and small on the right

the equal to symbol has a line under the symbol

5 0
3 years ago
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