A true-false test has 12 questions. What is the probability of guessing the correct answers to all of the questions?I need to know how to find the probability. Please help fast!

Answers

Answer 1

Answer: each t or f has 2 possibilities so 2^12 or 4096

Answer 2

Answer: 1/2 is the answer. There are two choices, True and False so you have a 50/50 chance of being right

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A grocery store sells 12 bottles of water for $13.80. A convenience store sells ten bottles of water for $11.80.Which store has the better buy
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How to round whole 124,607 will it stay the same?

What type of transformation would
change (-6,3) into (6,3)?

Answers

Answer:

A reflexion across the y-axis

point (x , y) reflected across the y-axis is point (-x , y)

Answer:

Reflection

Step-by-step explanation:

From the coordinates, the x variable changes its sign without having to change its y variable. So translation is impossible here.

Rotation would also be impossible to achieve this since it the coordinates would switch.

Debbie need 5 yards of yellow fabric ,6.5 yards of blue fabric, and 8.2 of orange fabric to create quilt .if the the store sells fabric will she purchase (1 yard approximately 0.9m)

Answers

So I added 5+6.5+8.2 and that came up to about 19.7 and then converted it to meters and that came to 18 meters of fabric! Hope I helped

♡ A scientist recorded the growth of a plant over time. He used the data to make the graph below.Which equation represents the situation?

A.
y = 1.5x − 2

B.
y = 1.5x + 2

C.
y = 2x – 1.5

D.
y = 2x + 1.5

Answers

C. y= 2x - 1.5 i think

What is the answer snd steps to 4/5=-4/7g

Answers

$(4)/(5)= (-4)/(7g)\ \ \ \Rightarrow\ \ \ 4\cdot7g=5\cdot(-4)\ /:(4\cdot7)\n \ng= (5\cdot(-4))/(4\cdot7) = -(5)/(7) \n\n------------\n\n (4)/(5)= (-4)/(7)\cdot g\ /\cdot (- (7)/(4) )\n \n g=(4)/(5)\cdot (- (7)/(4) )=- (7)/(5)$

Isolate the variable g on one side of the equation by multiplying by (-7/4) on each side. The fours cancel since you get (4/5)*(-7/4) = (4/4)*(-7/5) = 1*(-7/5) and you're left with g = (-7/5) = -1 2/5 = -1.40

A coin is tossed and a spinner with four equal sections numbered 1 through 4 is spun. Can someone explain to me how to do this?What is the probability that the coin will land with heads up and the spinner will stop on 3? A. B. C. D.

Answers

You multiply the probability of the first event by the probability of the second event. In this case it would be (1/2) * (1/4) = 1/8

one half liter of lemonade concentrate is added to 3 liters of water. how many 1/3 liter servings of lemonade are made.

Answers

The way I understand this, is that we will have 3 (liters of water) +0.5 (half a liter of lemonade) =3.5 liters of liquid

so the question would be: how many times does $(1)/(3)$ fit into 3.5?

I count this like this:

$(3.5)/( (1)/(3) ) = (3.5*3)/(1) =9+1.5=10.5$

if you want to divide by a fraction, you need to multiply by the reverse of it.

so the answer is: 10 servings of lemonade ( and a little bit will be left over for half a serving).

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