A professor gives a surprise quiz with one multiple choice question. There are 4 answer possibilities: A, B, C, and D. What is
the probability that you randomly guess and select the correct answer?
Give your answer as a fraction

Answers

Answer 1
25% chance out of 100% probability

Related Questions

q/13 + 11 = 13 Please show me a step by step

Answers

Answer:

q=22

Step-by-step explanation:

it will take me a sec to explain hang on

Answer:

26

Step-by-step explanation:

Solve for q:

q/13 + 11 = 13

Put each term in q/13 + 11 over the common denominator 13: q/13 + 11 = q/13 + 143/13:

q/13 + 143/13 = 13

q/13 + 143/13 = (q + 143)/13:

(q + 143)/13 = 13

Multiply both sides of (q + 143)/13 = 13 by 13:

(13 (q + 143))/13 = 13×13

(13 (q + 143))/13 = 13/13×(q + 143) = q + 143:

q + 143 = 13×13

13×13 = 169:

q + 143 = 169

Subtract 143 from both sides:

q + (143 - 143) = 169 - 143

143 - 143 = 0:

q = 169 - 143

169 - 143 = 26:

Answer: |

| q = 26

BRAINLIEST AND ACED+ PLEASE HELP ME :c

Answers

Answer:

1 1/2 x 4 1/2 x 5 =  33 3/4

Help ASAP please ‼️
What is the value of x?
(5х)
o 14
15
оооо
110
110°
70°

Answers

Answer:

14

Step-by-step explanation:

The internal angle sum of a 4 sided polygon is 360 so set it equal to 360. 5x+110+110+70=360

5x+290=360

5x=70

x= 14

Hi please help me I'm in the middle of a test and I don't want to get grounded

Answers

Answer:

8(3j-2)

Step-by-step explanation:

Answer:

A.

[tex]8(3j - 2)[/tex]

find the perimeter of the figure below.

PLEASE GIVE A EXPLANATION

Answers

I believe the answer would be 198.54

First, find the circumference of the circle which for a diameter of 25, would be roughly 78.54 (according to goo gle) and the equation for circumference, C= πd

Then, add the 120, because of the rectangle in between the two half circles.

So my thought process was find the circumference, assuming that it was a full circle because it has two halves of a circle on either end. Then after that, you would add the two sides of the rectangle that contribute to the size of the perimeter

Please correct me if Needed and have a good day!

A quantity with an initial value of 140 decays continuously at a rate of 4% per decade. What is the value of the quantity after 98 years, to the nearest hundredth?
(pls answer)

Answers

9514 1404 393

Answer:

  93.84

Step-by-step explanation:

The exponential function will be of the form ...

  q = a×b^t

where 'a' is the initial quantity and b is the growth factor per time period t.

If we use decades as the time period, then the growth factor is 1 more than the growth rate of -4%. For the initial value 140, the function is ...

  q = 140×(1 -4%)^t

  q = 140×0.96^t

98 years is 9.8 decades, so the quantity q remaining will be ...

  q = 140×0.96^9.8 ≈ 93.84

The quantity remaining will be 93.84 after 98 years.

Answer:

94.6

Step-by-step explanation:

CAN SOMEONE HELP ME UNDERSTAND THIS PLEASE

Answers

YEAH OFC SHAWTY!

so for A its -4^11 because if the powers have the same base and they are being multiplied you add the powersFor B its the same idea, they have the same base, and are being multiplied so you add the powers- 13^9For C its similar, you have the same base, but since its Dividing, you subtract the powers. So, 9^5for D you pretend like the denominator has a power of 1 and subtract. So its -24^5-24^1 which hopefully puts it into perspective of being -24^4 becuase we subtracted the powers

I cant do 2 right now, but i will in a minute

And for 3 his mistake is that they arent the same bases so he cant add the powers, he should have converted them to the same base first.

g According to the U.S. department of Agriculture (USDA), 48.9% of males aged 20 to 39 years consume the recommended daily requirement of calcium. After an aggressive "Got Milk" advertising campaign, the USDA conducts a survey of 35 randomly selected males aged 20 to 39 and finds that 21 of them consume the recommended daily allowance (RDA) of calcium. At the ????=0.05level of significance, is there evidence to conclude that the percentage of males aged 20 to 39 who consume the RDA of calcium has increased?

Answers

Answer:

We can conclude that there is no sufficient evidence to conclude that the percentage of males aged 20 to 39 who consume the RDA of calcium has increased

Step-by-step explanation:

H0 : p = 0.489

H1 : p > 0.489

Phat = x/ n ; x = 21 ; n = 35

Phat = x/ n = 21 / 35 = 0.6

Test statistic :

(Phat - P0) ÷ sqrt[P0(1 - P0) /n]

1 - P0 = 1 - 0.489 = 0.511

Phat - P0 = 0.6 - 0.489 = 0.111

Test statistic = 0.111 ÷ sqrt[(0.489 * 0.511) / 35]

Test statistic = 0.111 ÷ sqrt(0.0071394)

Test statistic = 0.111 ÷ 0.0844949

Test statistic = 1.314

Pvalue from Tstatistic :

Pvalue = P(Z < 1.314) = 0.90558

α = 0.05

Pvalue > α ; Hence, we fail to reject the Null

We can conclude that there is no sufficient evidence to conclude that the percentage of males aged 20 to 39 who consume the RDA of calcium has increased

Two angles of a triangle are the same size. The third angle is 3 times as large
as the first. How large are the angles?

Answers

Use x to represent the first two angles. If the third angle is 3 times as large as the first, it can be represented as 3x. So, your angles are x, x, and 3x. These need to all add to 180 degrees, since it’s a triangle.

x + x + 3x = 180 —> Simplify the left side.
5x = 180 —> Divide by 5.
x = 36

So the first two angles are 36 degrees, and the third angle is 3 times that, which is 108 degrees.

OMG PLS HELP!!!!!!!!!!!!!! A rectangular prism has a height of 20 cm, length of 7 cm and width of 5 cm. Use the volume formula to find the volume of this prism. A. 140 cm3 B. 500 cm3 C. 700 cm3 D. 900 cm3

Answers

Answer:

The correct answer is C: 700 cm³

Step-by-step explanation:

V = l × w × h

V = 7 × 5 × 20

V = 7 × 100

V = 700

What is the arc length if
0 = 2π / 3 and the radius is 4 cm?

A. 8π / 3
B. 16π / 3
C. π / 6
D. 3π / 4

Answers

Answer:

A. 8π / 3

Step-by-step explanation:

ILL GIVE THE BRAINLIEST pls help me with this question just tell me which one is the right answer you can show your work if you want to you don't have to EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY ​​IF YOU DON'T PUT THE RIGHT ANSWER ILL REPORT YOU FASTER THAN THIS IS DUE ​

Answers

Answer:

both are correct

Step-by-step explanation:

1. Last week Bradley worked 32 hours
and earned $312.96. What did he
earn per hour?
A $9.75
C $10.30
B $9.78
D $10.09

Answers

Answer:

B ($9.78)

Step-by-step explanation:

If you don’t know the answer please don’t answer don’t answer anything please

Answers

9514 1404 393

Answer:

  (-1, -1/2)

Step-by-step explanation:

The midpoint is the average of the end points.

  ((-11, 0) +(9, -1))/2 = (-2, -1)/2 = (-1, -1/2)

The midpoint is (-1, -1/2).

Take your time please.​

Answers

Answer

1 2/7 and 4 2/4

Step-by-step explanation:

19/7-10/7=1 2/7 and 5/4 + 7/4 + 6/4 = 4 2/4

Answer:

The first one is approximately 1.29 and the second one is 4.5.

Step-by-step explanation:

Hope this helps!

Weekly wages at a certain factory are
normally distributed with a mean of
$400 and a standard deviation of $50.
Find the probability that a worker
selected at random makes between
$400 and $450.

Answers

We must use the formula of the z-score to find the the probability that a worker selected at random makes between $400 and $450 dollars. Then let X1 = 400 and X2 = 450 with the mean μ = 400 and standard deviation σ = $50. Then,

z1 = (X1 - μ) / σ = (400-400) / 50 = (0/50) = 0.00 and

z2 = (X2 - μ) / σ = (450 - 400) / 50 = (50/50) = 1.00

Then, the probability yields, P(0.00 ≤ z ≤ 1.00) = 0.3413 - 0.0000 = 0.3413

Answer: 34%

Step-by-step explanation:

The probability that a worker selected at random makes between $400-$450 is 34%

Jessica bought 1/2 pound of roast beef and 5/6 pound of ham. Which pairs of fractions are equivalent to the amounts Jessica bought? Mark all that apply.
A.8/16 and 10/16
B.6/12 and 10/12
C.5/10 and 8/10
D.12/24 and 20/24

Answers

Answer is
B aka D but simplified

How many squares are in this figure in all?

Answers

Answer:

explanation

Step-by-step explanation:

there

are

22

squares

all

together

There are 23 Squares within this figure

Can someone help me pls

Answers

Answer: if I help you can you plz put me as a brainly the answer is 15

Step-by-step explanation:

Step-by-step explanation:

hope this help! have a great day

Solve the following:

NO BOTS OR PEOPLE WANTING POINTS

Answers

Answer:

8

Step-by-step explanation:

PEMDAS

so answer all exponets

100-(100+64)/8

100-164/8

-64/8

answer= -8

Which of the following would have the same graphic representation as the function
f) = 16.2^x? Select all that apply.

Answers

Answer:

the first on and the 4th one

Step-by-step explanation:

identify the first four numbers in an arithmetic sequence modeled by the formula below. a1 = 10 an = an-1+5

Answers

Answer:

1. = –5 and the recursive formula to find the next four terms. The first five terms are –5, –10, ... Use the formula for an arithmetic sequence. The first term a. 1 is 1, and n ≥ 2. ... 5. BALL A ball is dropped from an initial height of 10 feet. The maximum heights the ball ... CCSS MODELING A landscaper is building a brick patio

Step-by-step explanation:



What is the slope of the line passing through points A and B?
Please help

Answers

Answer:

C: 1/4

Step-by-step explanation:

it is correct! i hope u enjou

Answer:

1/4

Step-by-step explanation:

Between A and B, the line 'rises'/goes up 1 block vertically and 'runs'/goes across 4 blocks horizontally.

Slope = rise/run = 1/4

Look at the equation.

3+4(5−x)=19−4x+4

How many solutions does the equation have? Explain your answer.

Answers

Answer:

infinite solutions

Step-by-step explanation:

3+4(5−x)=19−4x+4

Distribute

3 +20 -4x = 19 -4x +4

Combine like terms

23 -4x = 23 -4x

Add 4x to each side

23-4x+4x = 23-4x+4x

23 =23

This is always true so there are infinite solutions

Sams sells a 5-lb bag of beans for $17.25. How much is the unit price?

Answers

Answer:

$3.45

Step-by-step explanation:

17.25 divided by 5 is equal to 3.45

Write te expanded form of 54 72/100 in a fraction form

Answers

Answer: fifty-four and seventy-two hundredths

A salmon is swimming in a river that is flowing downstream at a speed of 2 miles per hour. The slamon can swim 12 miles upstream in the same amount of time it would take 24 miles downstream. What is the speed of the salmon in still water?

Answers

Answer:

The speed of the salmon in still water is 6 mi/h

Step-by-step explanation:

When an object moves with a speed So (So measured in still water) in a river with speed Sr:

If the object moves along the current (downstream), then the actual speed of the object will be:

S = So + Sr

If the object moves upstream, then the velocity will be:

S = So - Sr

In this case we know the speed of the river downstream is 2 mi/h

Sr = 2mi/h

And we know that the salmon can swim 12 miles upstream in the same time (T) that it can swim 24 miles downstream.

Here you need to remember the relation:

Distance = Time*Speed.

Then we know that:

24 mi = (So + 2mi/h)*T

12 mi = (So - 2mi/h)*T

Now we can take the quotient of these two equations to get:

(24mi/12mi) = ( (So + 2mi/h)*T)/((So - 2mi/h)*T)

2 = (So + 2mi/h)/(So - 2mi/h)

Let's multiply both sides by the denominator of the right part:

2*(So - 2mi/h) = (So + 2mi/h)

2*So - 4mi/h = So + 2mi/h

Now we need to isolate So, the speed of the salmon in still water:

2*So - So = 2mi/h + 4mi/h

So = 6mi/h

The speed of the salmon in still water is 6 mi/h

A mason gets $684 for 9 days
of work how many days
should he work to get $912​

Answers

Answer:

12days

Step-by-step explanation:

A mason gets 76 dollars per day. To get 912 dollars, divide 912 by 76. 12days.

Answer:

12 days

Step-by-step explanation:

912/76 = 12

What is the median temperature

Answers

Answer:

88

Step-by-step explanation:

88 is the middle number all other numbers are either greater or smaller

they all revolve around the two numbers 88 and 88 when they are added together and divided by two it equals 88

Total surface area if 5.5in 4.5in and 3 in

Answers

Answer:

109.5in squared

Step-by-step explanation:

Use formula b x h to solve each rectangular side, after wards add the values up.

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