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JulijaS [17]
3 years ago
6

What is the value of x?

Mathematics
1 answer:
Reptile [31]3 years ago
4 0

Answer:

....................

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What is the range and domain of the function : y= sqrt(x) -5 ... Can you please explain? Thanks btw the square root is only over
Likurg_2 [28]
Okay so basically domain =input and range =output. you can never have a negative number underneath the square root sign because it will make the answer imaginary (i), unless you are on that concept. Therefore the range is any number greater than 0. -> all real numbers greater than or = 0

for the range if you input 0 as x you will get -5, so any number you input after 0 will be greater than -5. so range is all real numbers greater than or equal to -5. 
3 0
3 years ago
Read 2 more answers
Simplify the expression<br> 3⁵ ÷ 3³
chubhunter [2.5K]

Answer:

9

Step-by-step explanation:

3x3x3x3x3= 193u19283

3x3x3=something

=9

bingo

mathmatecian

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4 0
2 years ago
the line plot shows the ages at which a group of musicians started to play instrument based on the data in the line plot which s
aleksklad [387]

Answer: they both true

Step-by-step explanation:

5 0
3 years ago
One number is 2 more than another. The difference between their squares is 24.
kkurt [141]

Answer: The numbers are 7 and 5

Step-by-step explanation:

Let the first number be x and the second number be y.

From the first statement , it was said that one of the number is two more than the other , that is

x - y = 2  .................. equation 1

square of x is x^{2} and the square of y is y^{2} , the difference between thier squares implies

x^{2} - y^{2} = 24 .............. equation 2

solving the resulting simultaneous equations by substitution method:

From equation 1 , make x the subject of the formula , that is

x = 2 + y ............. equation 3

substitute equation 3 into equation 2 , we have

(2+y)^{2} - y^{2} = 24

Expanding , we have

y^{2} + 4y + 4 - y^{2}  = 24

4y + 4 = 24

Subtract 4 from both sides

4y = 20

y = 20/4

y = 5

substitute y = 5 into equation 3 , we have

x = 5+ 2

x = 7

Therefor the numbers are 7 and 5

7 0
3 years ago
Read 2 more answers
USE THE FREQUENCY DISTRIBUTION TO DETERMINE THE FOLLOWING:A) THE TOTAL NUMBER OF OBSERVATIONS.B) THE WIDTH OF EACH CLASS.C) THE
lutik1710 [3]

A) The total number is the sum of all the frequencies

2+5+8+12+11+6=44

Answer: 44

B) The width is (upper limit - lower limit) / 2

(35-21) / 2 = 7

(50-36) / 2 = 7

(65-51) / 2 = 7

(80-66) / 2 = 7

(95-81) / 2 = 7

(110-96) / 2 = 7

Answer: the width is 7

C) The midpoint is the lower limit + the width

36+7=43

Answer: the midpoint is 43

D)The modal is the class with more frequency

In this case 66-80 with 12

Answer: class 66-80

E) We use the width formula

lower limit = 111

width = 7

upper = (width * 2) - lower

upper = (7 * 2) + 111

upper = 125

Answer: class 111-125

4 0
1 year ago
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