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Paha777 [63]
3 years ago
12

19) which word phase can you use to represent the algebraic expression 4z?

Mathematics
1 answer:
neonofarm [45]3 years ago
8 0
Pick b because 4 is a sum and you tryna find the number that go with z
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For what value of x must ABCD be a parallelogram?<br><br> Picture below*
sesenic [268]

Answer:

x = 5

Step-by-step explanation:

Comment

BD is already given to you as bisected. AC must also be bisected. That means that 6x and 7x - 5 must the the same value. Then and only then will the figure be a parallelogram. (a four sided figure is a parallelogram if the 2 diagonals are bisected.

Equation

6x = 7x - 5                    Subtract 6x from both sides

Solution

6x - 6x = 7x - 6x - 5     Simplify

0 = x - 5                        Add 5 to both sides

5 = x - 5 + 5                 Simplify

x = 5

7 0
3 years ago
Please help!!! 40 points and will give brainliest!!
NeTakaya

Answer:

the answer would be

Step-by-step explanation:

i hope this helped

7 0
3 years ago
Read 2 more answers
The sizes of the angles in degrees of e triangles are.
zloy xaker [14]
(2x + 7) + (2x) + (x + 18) = 180

5x + 25 = 180

5x = 155

x = 31 °
4 0
3 years ago
At a swim meet, 8 different swimmers compete in the 800- meter freestyle race. How many different ways are there for these swimm
nirvana33 [79]

Using the arrangements formula, it is found that there are 40,320 ways for these swimmers to finish.

<h3>What is the arrangements formula?</h3>

The number of possible arrangements of n elements is given by the factorial of n, that is:

A_n = n!

In this problem, there are n = 8 swimmers, hence they can finish arranged in 8! ways, that is:

A_8 = 8! = 40320

More can be learned about the arrangements formula at brainly.com/question/24648661

5 0
3 years ago
Use the Divergence Theorem to calculate the surface integral S F · dS; that is, calculate the flux of F across S. F(x, y, z) = (
MAVERICK [17]

\vec F(x,y,z)=(2x^3+y^3)\,\vec\imath+(y^3+z^3)\,\vec\jmath+3y^2z\,\vec k

has divergence

\mathrm{div}\vec F(x,y,z)=6x^2+3y^2+3y^2=6(x^2+y^2)

Then by the divergence theorem, the flux of \vec F across S is equal to the integral of \mathrm{div}\vec F over the interior of S. In cylindrical coordinates, this integral is

\displaystyle6\int_0^{2\pi}\int_0^1\int_0^{1-r^2}r^3\,\mathrm dz\,\mathrm dr\,\mathrm d\theta=\boxed{\pi}

4 0
3 years ago
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