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alexgriva [62]
3 years ago
9

Steve has 8 biscuits in a tin. There are 5 digestive and 3 chocolate biscuits. Steve takes two biscuits at random from the tin.

Work out the probability that he chooses two different types of biscuits.
Mathematics
2 answers:
Talja [164]3 years ago
8 0

Answer:

15/28

Step-by-step explanation:

Fudgin [204]3 years ago
5 0

Answer:

5/7

Step-by-step explanation:

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PLEASE HELP <br> find the value of x !
qwelly [4]

Answer:

x = 32

Step-by-step explanation:

So we are given the measures of two of the three interior angles. 98° and 50°. We are also given that the value of the third interior angle is equal to x°. Remember, the sum of the interior angles of a triangle is 180°. Knowing this, we can make the equation:

x + 98 + 50 = 180

Now we solve for x. Subtract 50 from both sides.

x + 98 = 130

Subtract 98 from both sides.

x = 32

So the value of x is 32.

I hope you find my answer and explanation to be helpful. Happy studying.

4 0
3 years ago
Which ordered pairs are a solution to the equation?
fenix001 [56]
The ordered pairs that are a solution to the equation y=4-2x are (0,4) and (-1,6)
3 0
3 years ago
Factor the following polynomial completely.<br> 2x2 – 10x – 28
erastovalidia [21]

Answer:

2(x - 7)(x + 2)

Step-by-step explanation:

Given

2x² - 10x - 28 ← factor out 2 from each term

= 2(x² - 5x - 14) ← factor the quadratic

Consider the factors of the constant term (- 14) which sum to give the coefficient of the x- term (- 5)

The factors are - 7 and + 2 , since

- 7 × 2 = - 14 and - 7 + 2 = - 5 , thus

x² - 5x - 14 = (x - 7)(x + 2) and

2x² - 10x - 28 = 2(x - 7)(x + 2)

5 0
3 years ago
A survey showed that 82​% of adults need correction​ (eyeglasses, contacts,​ surgery, etc.) for their eyesight. If 12 adults are
Aloiza [94]

Probability of an adult who needs correction = 82% or 0.82

So, probability of an adult who does not needs correction = 1 - 0.82  = 0.18

If 12 adults are randomly​ selected, the probability that at least 11 of them need correction for their eyesight is:

12C11(0.82)^{11}(0.18)^{12-11} + 12C12(0.82)^{12}(0.18)^{12-12}

= 12*0.11*0.18 + 1*0.09*1

= 0.238+0.09

= 0.328 or 0.33

And, yes, 11 is significantly a high number of adults requiring eyesight​ correction.

7 0
3 years ago
Read 2 more answers
Julie ran a race 2 minutes faster then Teri did. If Julie ran the race in 28 mins, which equation can be used to find the number
Lynna [10]

Answer:(28)+2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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