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mart [117]
3 years ago
11

Based on the following calculator output, determine the inter-quartile range of the dataset.

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0
The whole thing Is confusing
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Find the lengths of the lettered angles and sides. No approximation for square root is allowed
inn [45]

Answer:

  • x = 30°, y = 45°
  • w = 14√2, v = 7√2

Step-by-step explanation:

ΔABC

  • BC/AB = sin x
  • 12/24 = sin x
  • 1/2 = sin x
  • x = 30°

ΔDBC

  • DC = BC - given
  • ∠C = 90° - given
  • ΔDBC is isosceles right triangle

∠BDC ≅ ∠DBC ⇒ y = 45°

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

ΔMPN is right isosceles triangle ⇒ MN = PN√2 = 14√2

  • w = 14√2

ΔMKP is right isosceles triangle ⇒ MK = KP

  • v = 1/2MN = 1/2(14√2) = 7√2

7 0
3 years ago
Two number that multiply and add together to get 56 and -15
Kobotan [32]

Answer:

-8 & -7

Step-by-step explanation:

-8+-7=-15

-8*-7=56

3 0
4 years ago
Find the value of x in the equation 2x²+3x+3=20​
Zigmanuir [339]

Answer:

x= \frac{-3 - \sqrt{145} }{4} \ \ or\ \  x= \frac{-3 + \sqrt{145} }{4}

Step-by-step explanation:

2x² + 3x + 3 = 20​

⇔ 2x² + 3x + 3 - 20 = 0

⇔ 2x² + 3x - 17 = 0

<u>Using the Quadratic Formula to solve a Quadratic Equation</u> :

x= \frac{-b \pm \sqrt{b^{2}-4ac} }{2a}

In the equation 2x² + 3x - 17 = 0

a = 2  ,  b = 3  and c = -17

Then

b² - 4ac = 3² - 4×2×(-17)

           = 9 + 8 × 17    

           = 9 + 136    

           = 145

Then

b² - 4ac > 0

Then

x= \frac{-3 \pm \sqrt{145} }{2 \times 2}

Then

x= \frac{-3 \pm \sqrt{145} }{4}

8 0
1 year ago
Read 2 more answers
Math question Need answer ASAP please
Valentin [98]
Triangle AEB and triangle CED (second option)
4 0
3 years ago
Read 2 more answers
753% in a decimal form<br> :)
sasho [114]

ANSWER: 7.53

Step-by-step explanation:

To convert a percent to decimal you need to divide the percent by 1,

753% ÷ 1 = 7.53

7 0
3 years ago
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