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LUCKY_DIMON [66]
3 years ago
8

You sit down to take a true- or- false test with 6 questions. If you randomly guess on all of the questions, how many outcomes a

re possible for this 6 question test?
Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

Answer: 50/50 right/wrong/both


Step-by-step explanation: If you guess on a true false test it could end one of 3 ways 1 being getting all the answers right 2 you get all the answers wrong and 3 you get half of the answers wrong and half of the answers right


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The combined area of two squares is 80 square centimeters. Each side of one square is twice as long as a side of the other squar
olganol [36]

Answer:

The length of each side of the larger square is<u> 8 </u>centimeter.

Step-by-step explanation:

Given:

The combined area of two squares is 80 square centimeters. Each side of one square is twice as long as a side of the other square.

Now, to find the length of each side of the larger square.

Let s be the length of the smaller square.

So, the length of the larger square = 2s.

Now, we find the areas of the square by putting formula:

The area of smaller square = length²  =s^2.

The area of larger square = (length)²  =(2s)^2=4s^2.

As, given:

The combined area of two squares is 80 square centimeters.

According to question:

s^2+4s^2=80\\5s^2=80

<em>So, dividing both sides by 5 we get:</em>

s^2=16

<em>Using square root on both sides we get:</em>

s=4\ centimeter.

And, to get the  length of each side of the larger square we substitute the value of s:

2s=2\times 4=8\ centimeter.

<u>The length of larger square = 8 centimeter</u>

Therefore, the length of each side of the larger square is 8 centimeter.

8 0
3 years ago
What is the value of x in the figure?
finlep [7]
<h3>Answer:  x = 29</h3>

======================================================

Work Shown:

x+61 = 90

x+61-61 = 90-61

x = 29

------------

Explanation:

  • The first step is valid because the two angles x and 61 are complementary angles. They form a right angle or 90 degree angle.
  • In the second step, I subtracted 61 from both sides to undo the "+61".
3 0
4 years ago
Read 2 more answers
A store sells candy at $.50, $1, $1.50, $2, and $3 per kilogram. you can see that the unit price of candies that $3 buy very inv
olga nikolaevna [1]

Answer:

constant of variation = 3

Step-by-step explanation:

Given that a store is selling different candies costing  $.50, $1, $1.50, $2, and $3 per kilogram.

As given

Amount available to buy candies = $ 3

Suppose

Unit price of candies = x

Number of candies bough = y

Constant of variation = k

As we know the unit price of candies and number of candies bought vary inversely. As the unit price would increase the the number of candies bought in available amount ($3) would decrease.

So our formula to calculate formula for constant of variation would be as shown below:

k= xy →(1

Case 1

if we take unit price x to be $0.5, then we can buy 6 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (0.5)(6) = 3

Case 2

if we take unit price x to be $1, then we can buy 3 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (1)(3) = 3

Case 3

if we take unit price x to be $1.5, then we can buy 2 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (1.5)(2) = 3

Case 4

if we take unit price x to be $2, then we can buy 1.5 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (2)(1.5) = 3

Case 4

if we take unit price x to be $3, then we can buy 1 kg of candies in $ 3. In this case constant of variation can be found from above equation (1) as follows:

k = (3)(1) = 3

So, our constant of variation is 3.

3 0
3 years ago
The mean of three numbers is 12 . Two of three numbers are 9 and 14 . What is the third numbers ?
Olenka [21]
13 is the correct answer
3 0
4 years ago
Read 2 more answers
The city airport and the train station are 45 miles apart. there are 9 gas stations equally spaced between the airport and train
Zielflug [23.3K]

The distance between the two adjacent gas stations will be 5 miles.

<h3>What is the difference between a ratio and a proportion?</h3>

A ratio is an ordered pair of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two ratios are specified to be equal.

Distance between city airport and the train station = 45 miles

Stations equally spaced between the airport and train station=9

Let the space between two gas stations will be x;

x = 45/9

x=5 mile.

Hence, the distance between the two adjacent gas stations will be 5 miles.

To learn more about the ratio, refer to the link;

brainly.com/question/14335762

#SPJ1

6 0
2 years ago
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