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g100num [7]
3 years ago
5

How do you do this geometry question?

Mathematics
2 answers:
hram777 [196]3 years ago
7 0

Answer: B: 150°

Step-by-step explanation:

|EF|=\sqrt{1^2-(\dfrac{1}{2})^2}}=\sqrt{\dfrac{3}{4} } =\dfrac{\sqrt{3} }{2} \\\\tan(\alpha)=\dfrac{1-\dfrac{\sqrt{3} }{2} }{\dfrac{1}{2} } =2-\sqrt{3} \Longrightarrow\ \alpha=15^o \\\\mes\widehat{BEC}=180^o-2*15^o=150^o\\\\Answer\ B

KATRIN_1 [288]3 years ago
6 0

Answer:

Ans: A 160

Step-by-step explanation:

(Hope this helps have a great day :)

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The volume of a cube can be found using the equation V=s^3 where s represents the length of the sides of the cube. if a cube has
ozzi

Answer:

<h2><u><em>16 cm </em></u></h2>

Step-by-step explanation:

The volume of a cube can be found using the equation V=s^3 where s represents the length of the sides of the cube. if a cube has volume 4096 cubic centimeters, what is the length of each side of the cube?

you use the inverse formula

s = ∛V

s = ∛4096

s = 16 cm

-------------------------

check

16 × 16 × 16 = 4096 cm³

The answer is good

5 0
3 years ago
The sum of 1/3 of a number and 12
muminat

Start by assigning a variable name to the "number" -- call it x.

Now write out what they say:

"The product of 1/3 and the sum of a number and 3" -- that's 1/3 times x + 3, or (1/3)(x + 3) or (x + 3) / 3

It's "between negative one and five"

So that means:

-1 < (x + 3) / 3 < 5

So now solve this inequality.  First multiply everything by 3.

-3 < x + 3 < 15

Subtract 3 from all the terms:

-6 < x < 12

So the answer is, all numbers between -6 and 12

7 0
3 years ago
Read 2 more answers
If the compound interest paid for rupees 4000 is rupees 420 then find the
Tomtit [17]

Answer:

Amount = Rs4420

Step-by-step explanation:

Given

Principal = Rs4000

Interest = Rs420

Required

Determine the amount paid

This is calculated as:

Amount = Principal + Interest

Amount = Rs4000 + Rs420

Amount = Rs4420

4 0
3 years ago
I don't want the answer, I want to know how to do it. What is the ratio of 4/5 to 7/15? I will give brainliest.
docker41 [41]

Answer:

12:7

Step-by-step explanation:

you want to set the fractions equal in the denominators:

4/5 x 3= 12/15

you end up with the ratio between 12/15 and 7/15 and you'd get 12 to 7

8 0
3 years ago
Read 2 more answers
5) Find the area of a rectangle<br> with points at (-8,5), (2,5),<br> (2,-3) and (-8,-3).
Lady bird [3.3K]

Answer:

80 units²

Step-by-step explanation:

Given <u>vertices</u> of a rectangle:

  • A = (-8, 5)
  • B = (2, 5)
  • C = (2, -3)
  • D = (-8, -3)

As points A and D share the <u>same x-coordinate</u>, and points B and C share the <u>same x-coordinate</u>, the difference between the different <u>x-coordinates</u> is the length of the rectangle:

\begin{aligned}\implies \textsf{Length} & = x_B-x_A\\& = 2-(-8)\\& = 2+8\\& = 10\; \sf units\end{aligned}

As points A and B share the <u>same y-coordinate</u>, and points C and D share the <u>same y-coordinate</u>, the difference between the different <u>y-coordinates</u> is the width of the rectangle:

\begin{aligned}\implies \textsf{Width} & = y_A-y_D\\& = 5-(-3)\\& = 5+3\\& = 8\; \sf units\end{aligned}

Therefore:

\begin{aligned}\textsf{Area of a rectangle} & = \sf width \times length\\&=8 \times 10\\&=80 \sf \; units^2\end{aligned}

7 0
2 years ago
Read 2 more answers
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