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Nikitich [7]
3 years ago
8

Which number is a perfect square ? a. 33 b. 37 c. 48 d. 49

Mathematics
2 answers:
maksim [4K]3 years ago
8 0

Answer:

49

Step-by-step explanation:

Because sqrt(49)=7

others are Real numbers

choli [55]3 years ago
7 0

Answer:

49.

Step-by-step explanation:

A perfect square is a number that can be expressed as the product of two equal integers. The only way to accurately calculate if a number is a perfect square is to find the factors.

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Each question in the test was worth an equal number of points. Chris answered 6 questions incorrectly. How many questions did th
Art [367]

Using mathematical operations and ratios, the number of questions that the other kids answered incorrectly was <u>1 each</u>.

<h3>What are the mathematical operations?</h3>

The mathematical operations include these four basic operations - addition, subtraction, multiplication, and division.

These mathematical operations and ratios, which set one value equal to another, are used to solve mathematical problems.

<h3>Data and Calculations:</h3>

The number of questions = 20

Marks awarded to each question = 3 points

Average incorrect answers by Chris = 6

Average performance = 50%

Above average performance = 90%

Incorrect answers by other students = 10% (1 - 90%)

<h3>Incorrect performance ratios:</h3>

Chris = 50%

Four students = 10%

= 5 : 1

Chris' ratio = 5/6

Four students = 1/6

The number of questions that the four other students answered incorrectly was <u>1 question</u> (6/50% x 10%) or (6 x 1/6).

Thus, the other kids answered <u>1 question</u> each incorrectly.

Learn more about mathematical operations and ratios at brainly.com/question/12024093

#SPJ1

<h3>Question Completion:</h3>

A test has 20 questions. The test awards 3 points if the answer is correct and takes away 1 point if the answer is incorrect. Five students took the test, but four of the five students perform above average (90%). Chris, an average student (50%), answered 6 questions incorrectly. How many questions did the other kids answer incorrectly?

4 0
1 year ago
HELP<br> ME I AM CRYING SO MUCH ALSO LMK IF U CANT SEE
Wittaler [7]
Send a better picture so I can help.
3 0
3 years ago
The area of a rectangle is 14 square units it has side lengths a and b
Travka [436]

The sides could be 1,14 or 2,7

5 0
3 years ago
Given that 6 x − 7 y = 22 Find y when x = − 1
kykrilka [37]

Answer

y= 4

Step-by-step explanation:

6x-7y=22

6x(-1)-7y=22

-6-7y=22

-7y=22+6

-7y=28

y=-4

7 0
2 years ago
Due soon! Please help :)
scoray [572]

Answer:

Dining Hall = 24 square meters

Kitchen = 48 square meters

Together = 72 square meters

3 0
3 years ago
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