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TEA [102]
3 years ago
10

WILL MARK BRAINLIEST Calculate the value of X in square DCBA

Mathematics
2 answers:
Alex73 [517]3 years ago
3 0

Answer:

45 degree , bc the ends are all 90 degree so divide 90 by two since the line crosses right in between

sineoko [7]3 years ago
3 0

Answer:

45°

That looks like an Isosceles triangle so two sides are equal

The angle near O would be 90° cause that looks like an right angle

180-90=90

To find each angle divide by 2

90÷2=45

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Divide.<br> a.1 − 2i/2i<br> b. 5 − 2i/5 + 2i<br> c.√3 − 2i/−2 − √3i
Umnica [9.8K]

Answer:

(a) \frac{-1i}{2}-1[/tex]

(b) \frac{20i+21}{29}

(c) i

Step-by-step explanation:

We have to perform division

(a) \frac{1-2i}{2i}

So after division

\frac{1-2i}{2i}=\frac{1}{2i}-\frac{2i}{2i}=\frac{-1i}{2}-1

(b) We have given expression \frac{5-2i}{5+2i}

After rationalizing \frac{5-2i}{5+2i}\times \frac{5-2i}{5-2i}=\frac{(5-2i)^2}{25+4}=\frac{25+4i^2+20i}{29}=\frac{20i+21}{29}

(c) We have given expression \frac{\sqrt{3}-2i}{-2-\sqrt{3i}}

After rationalizing

\frac{\sqrt{3}-2i}{-2-\sqrt{3i}}\times \frac{-2+\sqrt{3i}}{-2+\sqrt{3i}}=\frac{-2\sqrt{3}+7i+2\sqrt{3}}{7}=\frac{7i}{7}=i

5 0
3 years ago
6(1) = 16<br> 6(n) = b(n − 1) + 1<br> Find the 2-term in the sequence.
Tresset [83]

Answer:

17

Step-by-step explanation:

Given

b(1)=16\\ \\b(n)=b(n-1)+1

Finding the second term of the sequence means to find b(2). To find b(2) substitute n=2 into the second expression:

b(2)=b(2-1)+1\\ \\b(2)=b(1)+1\\ \\b(2)=16+1\\ \\b(2)=17

6 0
2 years ago
What’s the height of the can?
kondaur [170]

Answer:

5 inches

Step-by-step explanation:

The formula to find the surface area of a cylinder is A = 2πrh + 2πr²  

Since we need the height we will need to solve for h

  • First we can subtract 2πr² from both sides to get A - 2πr² = 2πrh
  • Then we can divide both sides by 2πr to get h=\frac{A-2\pi r^{2}  }{2\pi r}

Now we can plug in our known values and solve for h

  • Here we were given the diameter, d, however this formula is in terms of the radius, r.
  • The diameter is equivalent to double the radius, d = 2r
  • Therefore the radius is equivalent to half the diameter, r=\frac{1}{2} d
  • Plugging in d to solve for r we get r=\frac{1}{2}(2) which simplifies to r = 1

The two variables for this equation we have no obtained, A = 12π and r = 1, so we can plug them into our equation to solve for the height

  • h=\frac{12\pi -2\pi (1)^{2}  }{2\pi (1)}=h=\frac{12\pi -2\pi  }{2\pi }=\frac{10\pi }{2\pi } =5
  • The height is 5 inches
4 0
3 years ago
Todd has 250% more video games than jaylon Todd has 56 video games he give jaylon 8 games how many games did they both have in t
topjm [15]

Answer:

Todd originally had 64 games; Jaylon had eight.

Step-by-step explanation:

If Todd has 56 games now, after having given eight games to Jaylon, Todd must have started with 64 games.

Let x = Jaylon's original games.

If Todd has <em>250 % more games</em> than Jaylon, he has <em>3.5 times as many </em>games as Jaylon.

Let x = Jaylon's original number of games. Then

x+ 8 = Jaylon's games now

                                                 ∴ 56 = 3.5(x+8)

Distribute the 3.5                        56 = 3.5x +28

Subtract 26 from each side     3.5x = 26

Divide each side by 3.5               x = 8

Jaylon originally had eight video games.

Check:

64 - 8 = 3.5(8 + 8)

    56 = 3.5 × 16

    56 = 56

6 0
3 years ago
Read 2 more answers
18000 grams greater or less than 10 kilograms?
sukhopar [10]
First convert 18000 grams into kilograms by dividing by 1000;
\frac{18000}{1000}
=18kg
Thus 18000 grams is greater than 10 kilograms
4 0
3 years ago
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