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Harrizon [31]
3 years ago
15

What is the constant of proportionality?

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0

Answer:

The table provides information on road accidents reported to the police for the days in December.

Accidents reportedFrequency1 - 7178 - 12713 - 17518 - 222

Estimate the mean.

Give your answer rounded to 1 DP

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Maths plz help me soon xD
LUCKY_DIMON [66]

rationalise the denominator by multiplying both top and bottom by (8-5√3) then expand and simplify

7 0
3 years ago
Given the event​ "a die lands with a 6 on​ top", which of the following is the complement of this​ event? Choose the correct ans
Veronika [31]

Answer:

The die lands with a​ 1, 2,​ 3, 4, or 5 on top ⇒ answer D

Step-by-step explanation:

- Complementary events are two outcomes of an event that are the

 only two possible outcomes

- The Complement Rule states that the sum of the probabilities of

  an event and its complement must equal 1

- P(A) + P(A') = 1

- Lets solve the problem

- The event A is:

  " a die lands with a 6 on​ top "

∴ P(A) = \frac{1}{6}

∵ P(A) + P(A') = 1

∴ \frac{1}{6} + P(A') = 1

- Subtract \frac{1}{6} from both sides

∴ P(A') = \frac{5}{6}

∵ The die has six numbers from 1 to 6

∴ The other numbers than 6 are 1 , 2 , 3 , 4 and 5

∴ The complement of event A is:

   " A die lands with 1 , 2 , 3 , 4 or 5 "

* The complement of the event is:

 The die lands with a​ 1, 2,​ 3, 4, or 5 on top

8 0
3 years ago
How many vertices does a polyhedron have with 5 faces 3 rectangles and two triangles​
steposvetlana [31]

Answer:

It has six vertices.

4 0
3 years ago
Walden’s family is shopping for a reclining chair. The chair the family decided on has a retail price of $800 plus 5% sales tax
Marianna [84]

Answer:

B 10% off sale, with a total price to pay of 756

Step-by-step explanation:

Retail price (Rp) = $800

Taxes (T) = 5%

  • Offer A $75 instant rebate

Total price A (TA) = Rp - 75 + (Rp - 75) 5%

TA = 800 - 75 + (800-75) 5%

TA = 725 + 725 5%

725 5% = 725*5/100 = 36.25

TA= 725+36.25 = $761.25

  • Offer B 10% off sale

Total price B (TB) = RP - RP 10% + (RP - RP 10%) 5%

TB = 800 - 800 10% + (800 - 800 10%) 5%

800 10% = 800*10/100 = 80

TB = 800 - 80 + (800 - 80) 5%

TB = 720 + 720 5%

720 5% = 720*5/100 = 36

TB = 720 + 36 = $756

  • Offer C 5% off sale plus store pays sales tax

store pays sales tax means Walden's family will not need pay for taxes

Total price C (TC) = RP - RP 5%

TC = 800 - 800 5%

800 5% = 800*5/100 = 40

TC = 800 - 40 = $760

  • Offer D a “no tax” sale—the store pays the tax

Means that Walden's family will need pay just the retail price

TD = $800

The beast deal is from the store B

7 0
3 years ago
Read 2 more answers
Possesses help its timed will mark brainliest
umka21 [38]

Answer:

  • \sqrt{13}

Step-by-step explanation:

<u>The two points:</u>

  • (0, 0) and (-3, -2)

<u>The distance:</u>

  • d = \sqrt{(x2- x1)^2 + (y2 - y1)^2 }
  • d = \sqrt{(-3)^2 + (-2)^2} = \sqrt{13}
3 0
3 years ago
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