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PolarNik [594]
4 years ago
6

A "True or False" test has five questions.

Mathematics
1 answer:
Gennadij [26K]4 years ago
4 0

Answer:

5/16.

Step-by-step explanation:

The probability of getting a correct answer on one question is 1/2 and the probability of getting it wrong is  1 - 1/2 = 1/2.

The probability of the first 2 being correct and the next 3 wrong = (1/2)^5 = 1/32.

There are  10  possible combinations of this ( first wrong the 2nd and third right and last  2 wrong,  etc).

So the  required probability is 10 * 1 /32

= 10/32

= 5/16.

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What is the rate unit of running 4 laps in one minute?
kirill115 [55]

Answer:

laps per minute

Step-by-step explanation

because it is asking you to find the unit of laps per minute.

5 0
2 years ago
Please help me can anyone solve this what is x^2+5x-7?​
Mama L [17]

Answer:

x = (-5+-sqrt(53))/2

Step-by-step explanation:

Apply the quadratic formula to this equation with a = 1, b = 5, and c = -7.

Plug it in then simplify.

Quadratic formula is x = (-b+-sqrt(b^2-4ac))/2a

7 0
3 years ago
Ron is 5 years older than twice his cousins pats age. The sum of their ages is less than 35. What is the grates age pat could be
Anestetic [448]

The answer is 7 because if you multiply 7 with 5 than it will equal 35

Hope it helps


7 0
3 years ago
What decimal is equivalent to 45/100
AlekseyPX
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷  45/100 = 0.45

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
3 years ago
Read 2 more answers
Pls try to give it as soon as possible ​
sergejj [24]

Answer:

I'm having a hard time with this, I keep confusing myself but hopefully this example will help at least to get an idea:

"12 cm

Explanation:

We're pouring 12 litres of water into a container that is 40cm long and 25cm wide. Let's see how big the bottom of the container is:

40cm×25cm=1000cm2

1 litre of water fills 1000cm3, and so it would rise 1 cm (we divide the volume of the water by the surface area to arrive at the height):

1000cm31000cm2=1cm

12 litres of water can then be seen to rise 12 cm:

12×1000cm31000cm2=12cm"

3 0
3 years ago
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