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3 years ago

-32.306 + (-24.884) as a decimal.

Mathematics

1 answer:

Archy [21]3 years ago

4 0

-32.306 + (-24.884) = 5719/100 or -57.19

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With the definition of the derivative, determine the formula logx!

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2 years ago

A coordinate grid is shown below: A coordinate grid from negative 2 to 0 to positive 2 is drawn. There are three grid lines betw

Anastasy [175]

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Part A: 0

Part B: (-1,-1) since point (-1,1) is located in quadrent four when it is reflected over the y axis the second point would be located in quadrent three and the x and y would both be negative.

Step-by-step explanation:

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3 years ago

What is 63 divided by 28

Mariana [72]

Answer:

2.25

Step-by-step explanation:

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3 years ago

Read 2 more answers

Two vectors A⃗ and B⃗ are at right angles to each other. The magnitude of A⃗ is 5.00. What should be the length of B⃗ so that th

creativ13 [48]

Answer:

Length of B is 7.4833

Step-by-step explanation:

The vector sum of A and B vectors in 2D is

$C=A+B=(a_1+b_1,a_2+b_2)$

And its magnitude is:

$C=\sqrt{(a_1+b_1)^2+(a_2+b_2)^2} =9$

Where

$a_1=Asinx$

$a_2=Acosx$

$b_1=Bsin(x+90)$

$b_2=Bcos(x+90)$

Using the properties of the sum of two angles in the sin and cosine:

$b_1=Bsin(x+90)=B(sinx*cos90+sin90*cosx)=Bcosx$

$b_2=Bcos(x+90)=B(cosx*cos90-sinx*sin90)=-Bsinx$

Sustituying in the magnitud of the sum

$C=\sqrt{(Asinx+Bcosx)^2+(Acosx-Bsinx)^2} =9$

$C=\sqrt{A^2sin^2x+2ABsinxcosx+B^2cos^2x+A^2cos^2x-2ABsinxcosx+B^2sin^2x} =9$

$C=\sqrt{A^2(sin^2x+cos^2x)+B^2(cos^2x+sin^2x)}$

$C=\sqrt{A^2+B^2} =9$

Solving for B

$A^2+B^2 =9^2$

$B^2 =9^2-A^2$

Sustituying the value of the magnitud of A

$B^2=81-5^2=81-25=56$

$B= 7. 4833$

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3 years ago

Britney read a total of 10 books over 2 months. After belonging to the book club for 3 months, how many books will Britney have

agasfer [191]

Answer:

she will have read 15 books in all

Step-by-step explanation:

if she has read 10 books in 2 months that means she has read 5 books each month, because 10 ÷ 2 = 5.

so if another month passes by that means she reads another 5 books.

10 + 5 = 15

so in total britney has read 15 books in total

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4 years ago