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coldgirl [10]
3 years ago
7

How do u write 2/400=2/400÷4/4=0.5/100= as a percent

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer:

0.5%.

Step-by-step explanation:

The definition of percent is  'parts per 100'.

0.5 / 100 = 0.5 percent.

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Use the picture to answer the question. Angle ABC is rotated 50° around point D . What is the measure of angle A'B'C' ?
MissTica

Answer:

A. 90

Step-by-step explanation:

Rotating an angle does not change its measure. ABC is 90 degrees as marked by the corner symbol. After rotating, the angle stays 90 degrees.

4 0
3 years ago
Read 2 more answers
A force of 8 N makes an angle of π/4 radian with the y-axis, pointing to the right. The force acts against the movement of an ob
Grace [21]

Answer:

a) F= 4\sqrt{2} i + 4\sqrt{2} j

b) Θ=11.3

c) The work done is 20\sqrt{2}

Step-by-step explanation:

a) ||F||=8, α=π/4

Fx=||F||·sin(π/4)=8·\frac{\sqrt{2}}{2}

Fy=||F||·cos(π/4)=8·\frac{\sqrt{2}}{2}

F=Fx i + Fy j = 4\sqrt{2} i + 4\sqrt{2} j

b) We can find the value of Θ using the equation:

cos(Θ)=\frac{F.D}{||F||||D||}

where:

D= 3 i + 2 j

F=4\sqrt{2} i + 4\sqrt{2} j

The dot product is defined as the sum of the products of the components of each vector as:

F · D= (4\sqrt{2})*3+(4\sqrt{2})*2=20\sqrt{2}

||F||= 8

||D||= \sqrt{3^2+2^2} =\sqrt{13}

Hence:

Θ=arccos(\frac{20\sqrt{2} }{8\sqrt{13} })

Θ=arccos(0.981)

Θ= 11.3°

c) Work is equal to:

F · D= (4\sqrt{2})*3+(4\sqrt{2})*2=20\sqrt{2}=28.3

Other way of obtainig the work is:

||F||||D||cos(Θ)

where:

||F||= 8

||D||= \sqrt{3^2+2^2} =\sqrt{13}

Θ=11.3°

So,  ||F||||D||cos(Θ)=8×\sqrt{13}×cos(11.3°)=28.3

3 0
3 years ago
Let $f(x)$ be a quadratic polynomial such that $f(-4) = -22,$ $f(-1)=2$, and $f(2)=-1.$ Let $g(x) = f(x)^{16}.$ Find the sum of
Murrr4er [49]

Answer:

The sum of the coefficients of the terms in (-1.5·x² + 0.5·x + 4)¹⁶ that have even degree is  -4273411167.501

Step-by-step explanation:

The parameters given are;

f(-4) = -22

f(-1) = 2

f(2) = -1

g(x) = f(x)¹⁶

The function f(x) is presented as follows;

f(x) = a·x² + b·x +c

We have;

-22 = a·(-4)² + b·(-4) +c

-22 = a·16 - 4·b +c ..............(1)

2 = a·(-1)² + b·(-1) +c

2 = a - b +c...........................(2)

-1 = a·(2)² + b·(2) +c

-1 = 4·a + 2·b +c...................(3)

Solving the equations (1), (2), and (3) by using an online linear systems solver, we get;

a = -1.5, b = 0.5, c = 4

Therefore, f(x) = -1.5·x² + 0.5·x + 4

f(x)¹⁶ = (-1.5·x² + 0.5·x + 4)¹⁶ which gives the coefficients of the even terms as follows;

656.841 - 19267.331 + 248302.054 - 1772904.419 + 6735603.932 - 2868054.635 - 119602865.901 + 750783340.827 + -2542435585.611 + 5338903756.992 - 6048065910.25 -1031335136 + 17223697920 - 32238338048 + 32107397120 - 17716740096 = -4273411167.501.

3 0
3 years ago
Kite ABCD has a longer diagonal AC with a length of 20in and a shorter diagonal BD with a length of 15in. The diagonals intersec
erma4kov [3.2K]
That is not enough information.
If you look at the graphic, diagonal BD (along with point E), can be moved up and down the long diagonal and the two diagonals will still have the same length.  You need to state additional information.

6 0
3 years ago
Help me with these simple math problems ​
earnstyle [38]

Answer:

Please read the answer below.

Step-by-step explanation:

1. Australia:

75 * 1.87 =140 Australian dollars

2. Brazil:

75 * 2.32 = 174 Reals

3. Britain:

75 * 0.69 =  52 Pounds

4. Canada:

75 * 1.60 = 120 Canadian dollars

5. China:

75 * 8.28 = 621 Yuan

6. Denmark:

75 * 8.43 = 632 Kroner

7. Japan:

75 * 131.55 = 9,866 Yen

8. Mexico:

75 * 9.19 = 689 Mexican pesos

9. South Africa:

75 * 11.9 = 893 Rands

10. Sweden:

75 * 10.61 = 796 Kronor

11. Switzerland:

75 * 1.68 = 126 Francs

12. Thailand:

75 * 44.18 = 3,314 Baht

All currencies rounded to the next integer.

Note: Same answer to question 14454918, answered by me today.

8 0
3 years ago
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