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Tamiku [17]
3 years ago
15

What percent of 45 is 7? show work please?

Mathematics
2 answers:
pishuonlain [190]3 years ago
5 0

Answer:

3.15 is correct

Step-by-step explanation:

The person above me has all the work needed

Otrada [13]3 years ago
3 0

Answer:

3.15

Step-by-step explanation:

45% can be converted into 0.45 or 9/20. You either multiply 7 by 0.45 or 9/20 to get your answer.

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Find the differential of the function w=xsin(2yz^4).
SCORPION-xisa [38]

The differential of

w = x \sin(2yz^4)

is

\mathrm dw = \dfrac{\partial w}{\partial x}\,\mathrm dx + \dfrac{\partial w}{\partial y}\,\mathrm dy + \dfrac{\partial w}{\partial z}\,\mathrm dz

where the partial derivatives are

\dfrac{\partial w}{\partial x} = \sin(2yz^4) \\\\ \dfrac{\partial w}{\partial y} = x \cos(2yz^4) \times 2z^4 = 2xz^4 \cos(2yz^4) \\\\ \dfrac{\partial w}{\partial z} = x \cos(2yz^4) \times 8yz^3 = 8xyz^3 \cos(2yz^4)

So the differential d<em>w</em> is

\mathrm dw = \boxed{\sin(2yz^4)}\,\mathrm dx + \boxed{2xz^4 \cos(2yz^4)}\,\mathrm dy + \boxed{8xyz^3 \cos(2yz^4)}\,\mathrm dz

5 0
3 years ago
Someone help pls ;-; im lost
Elodia [21]

The formula of a circle is A=pi x radius^2

i cant see the blue and red numbers for some reason ill do the other 4 by plugging them in

yellow:153,94 rounded 153,9

green:1385.4

orange3019.1

purple:227

circumference formula c=2 X pi X r

yellow: 43.9

green: 132

orange: 194.8

purple: 53.4

plz correct me if im wrong

5 0
2 years ago
HELPPPPPP SOLVE FOR X
Diano4ka-milaya [45]

Answer:

x = 6

Step-by-step explanation:

These are supplementary angles.

This means that the angles add up to 180 degrees.

The first thing we can do is set 6y equal to 90, because the little red box means that is 90 degrees.

6y = 90

y = 15

Now that we have found y we can solve for x.

Plug in the y to the 5x + 4y

5x + 4(15)

5x + 60

We can set this equal to 90 again

5x + 60 = 90

5x = 30

x = 6

Therefore x is equal to 6.

<em>I hope this helps!!</em>

<em>- Kay :)</em>

7 0
3 years ago
Read 2 more answers
Plz help need answers quickly I have not so long
Nastasia [14]

Answer: $10

Step-by-step explanation:

$4/40 golf balls = $1/10 golf balls

$1/10 = x/100, x=100/10, x=$10

6 0
3 years ago
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2 angles of a triangle is 65 and 57 how to find the third angle
MArishka [77]
Add 65+57 and subtract it from 180 then you get the third angle
7 0
3 years ago
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