the square root of negative 9 is not negative 3 because..​

Answers

Answer 1

Answer:

You cant have a negative square root

Explanation:

The answers will always be positive or a perfect square

Hope this Helps


Related Questions

Working simultaneously, four fudge machines complete a big order in 32 hours. All the machines at the fudge factory work at the same pace. How many hours would it take to complete the order with twice the number of working machines?

Answers

Answer:

4 Hours

Step-by-step explanation:

Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.

So:

1/x + 1/x + 1/x + 1/x = 1/32

1/4x = 1/32

4x = 32

x = 8

Thus, the rate of the machines is 1/8.

Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.

1/8 + 1/8 = 1/y

1/4 = 1/y

y = 4

The time taken to complete it is 4 hours.  

HERE IS YOUR ANSWER MATE

HAVE A GREAT DAY AHEAD

LOVE FROM INDIA

Solve the equation for the y–value and choose whether it is a direct variation or inverse variation

-4x + y = 0

Answers

Answer: Choice C

y = 4x

Direct variation

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

Explanation:

We add 4x to both sides to isolate y. That leads to y = 4x

This is a direct variation equation because it's in the form y = kx, for some constant k.

Answer please I appreciate it foo:)

Answers

Answer:

Your answer is the second one.

Step-by-step explanation:

All of the x's and y's match up.

Hope this helps!

HURRY!!!!
A line with a slope of 5 passes through the points (4,5) and (5,u) What is the value of u?

Answers

Answer:

See Below

Step-by-step explanation:

Slope is rise over run.

Rise is the difference in the y values

Run is the difference in the x values.

Rise/Run = 5 (slope)

You have both x values 4 from one point and 5 from the other point so the difference is 1.  The Run is equal to 1

So you now have Rise / 1 = 5

The first y value you have is 5 and based on (rise/1 = 5), you know the difference in the y values must equal 5.  That means the other y value has to be either 10 or 0.

0 will not work because that would make the slope negative since the line would slope downward from left to right.

will give BRAINLIEST!!!!!!
3 3/4 X 1 2/5 do a step by step explanation please and also you have to make it so you convert it into an improper fraction first... please answer!!!

Answers

Answer:

5 1/4

Step-by-step explanation:

To convert into an improper fraction, we times the whole number by the denominator and then add the numerator. For the first number, it is 15/4 and the second number is 7/5. Then we multiply 15/4 and 7/5 to get 5 1/4.

Answer:

99/5

Step-by-step explanation:

CONVERT INTO:

33/4 x 12/5

MULTIPLY THE FRACTIONS:

(33x12)

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

5

CANCEL TERMS:

(33x3)

-----------

5

SIMPLIFY:

99/5

Find the vaule of x. then classify each triangle as acute, right, or obtuse

Answers

Answer:

1) = 90=acute angle   2)103=acute angle

Step-by-step explanation:

Answer:

1.) x = 90 (Right angle)

2.) x = 103 (Obtuse angle)

Step-by-step explanation:

All triangles' angles have a sum of 180°.<90° = Acute, 90° = Right, >90° = Obtuse

[tex]1.)\\x+48+42=180\\x+90=180\\x=90\\\\2.)\\x+45+32=180\\x+77=180\\x=103[/tex]

Find the value of the expression.3 + 6 × 2 = _____

Answers

Answer:

15.

Step-by-step explanation:

Hope this helps!

Answer:

15

Step-by-step explanation:

3 + 6 × 2 =

- Following the rules of bedmas, multiply the terms first.

3 + 12

- Now, add the remaining values.

= 15

can someone help me ??

Answers

Answer:

x=5

Step-by-step explanation:

Brainliest?PLEASE?

Answer: x=-5

I hop that helped I would appreciate brainliest if possible :)

Someone pls help me I will make you brain

Answers

Answer:

base salary

Step-by-step explanation:

f(0) means that he had no sales so the only money made would be from the base salary

the value of a + b + c for equation 2 Y - x = 7 is ​

Answers

Answer:

Correct option is

B

1.x+0.y=7

x=7 can be written as, 1.x+0.y=7 as the coefficient of x is 1 and that of y is 0. Step-by-step explanation:

There is 1 inch of water in a pool. The water level is increasing at 0.75 inches/minute. Which linear equation represents the total depth of the water, in inches, after x minutes?

Question 3 options:

y=0.75x+1

1+y=0.75x

x=0.75y

y=0.75x

Answers

the answer is y = 0.75x + 1

CAN SOMEONE HELP ME ASAP: Write 0.0000000642 in scientific notation.

Answers

Answer:

6.42 × 10-8.

Step-by-step explanation:

vububTodyksyk

Answer:

6.42 x [tex]10^{-8}[/tex]

Step-by-step explanation:

0.0000000642 in scientific notation = 6.42 x [tex]10^{-8}[/tex]

HELP ASAP PLS 10 POINTS ​

Answers

Answer:

try a or b hope this helps

Answer:

top right

Step-by-step explanation:

HELP PLEASE!!
Write a recursive rule for an=1/3•4^n-1

A.) an=1/3•an-1
B.) an=4•1/3an-1
C.) an=1/3•4an-1
D.) an=4•an-1

Answers

Answer:

D.) an = 4 * an-1

Step-by-step explanation:

a(n) = (1/3) * 4^(n-1)

a(n-1) = (1/3) * 4^(n-1-1) = (1/3) * 4^(n-2)

Thus,

a(n) = (1/3) * 4 * 4^(n-2) = 4 * [(1/3) * 4^(n-2)] = 4 * a(n-1), so that

a(n) = 4 * a(n-1).

What does m equal and what is the slope

Answers

Can you make the picture more clearly?

Answer:

The slope (m) = 2/3

Step-by-step explanation:

Taking any two points on the line:

(0,-2) & (3,0)

Using the slope formula to calculate the slope (m):

m = [tex]\frac{y2-y1}{x2-x1}[/tex]

= (0-(-2))/(3-0)

= (0+2)/3

= 2/3

Hence, the slope (m) is 2/3.

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

What is the value of x?

Answers

give us a problem or somen

Step-by-step explanation:

Answer:

x=4, i did the other one on ur acc, sad to see these points go to waste.

Step-by-step explanation:

Explain the relationship between place values, and how the place values change as you go to the left and to the right. Use the numbers 10, 1, and 0.1 in your explanation.

Answers

Answer:

the place value changes by dividing by 10 or multiplying by 10. take one and go right on the number line you get 10. go left from 1 and you get 0.1

Bryan is 122 pages into his adventure novel, and he can't wait to finish it tonight. Luckily, he reads quickly, 45 pages per hour. If Bryan reads for 4 hours tonight, how many pages will he have read in all?

Answers

Answer: 302

Step-by-step explanation:

45 pages per hour X 4 hours = 180  pages in total

180 + 122 = 302

so 302 pages in total

'please can i have brainliest? i need it for my goal'

he would have read 302 pages

Tom and Sean are window cleaners. Tom cleans 7 windows and Sean cleans 5 windows. Altogether they earn £36. How much will Tom get if they share the money in the same ratio as the number of windows they have cleaned?

Answers

Step-by-step explanation:

The total of windows they have cleaned = 12

They have cleaned 12 windows = they earn £ 36.

If they have cleaned 1 window = they earn 36/12 = £3.

So Tom have cleaned 7 windows = Tom earn = 3 * 7 = £21.

Please give me a brainliest answer

PLEASE DUE IN 17 MINUTES

Answers

Answer:

No the lines are not perpendicular

Step-by-step explanation:

Slopes are not perpendicular reciprocals

They are perpendicular

The slopes of two perpendicular lines is when the two lines are negative reciprocals of each other.

Slope of a:

1 - -3
_____ = 4/10
5 - -5


Slope of b:
-6 - 4
_____ = -10/4
2 - -2

So yes.

For brainily please help

Answers

Answer:

The largest side is ST

Step-by-step explanation:

It's the largest side because it is opposite to the largest angle

what is Evaluate 5x2-4 when x=3.

Answers

5x = 5 x 3 = 15

15 x 2 = 30

30-4 = 26

(I assume the 5x is multiplied by the 2)
5x=5x3=15
15x2=30
30-4= 26
PleAse mark me brainliest

Translate this sentence into an equation.
112 is the product of Donnie's height and 8.
Use the variable d to represent Donnie's height.

Answers

Answer:

8d = 112

Step-by-step explanation:

In the sentence:

112 is the result, so the calculation is equal to 112: '?' = 112

Donnie's height times 8 is equal to the result: 8d = 112

Last year, Robert grew 3 1/3 inches and his brother grew 1 2/3 inches. How much more did Robert grow than his brother?

Answers

The answer to the question is Robert grew 1 2/3 inch taller that his brother

When it says "how much more", it means to find the difference between the siblings' growth by subtracting their growths.

Step 1: Convert both mixed numbers to improper fractions

[tex]3\frac{1}{3}- 1\frac{2}{3}[/tex] Learn how to do that here: https://brainly.com/question/13099965

[tex]3\frac{1}{3}\\\\3\times3=9\\9+1=10\\\\\frac{10}{3}[/tex]

[tex]1\frac{2}{3}\\\\3\times 1 = 3\\3 + 2 = 5\\\\\frac{5}{3}[/tex]

[tex]\frac{10}{3} - \frac{5}{3}[/tex]

Step 2: Subtract

10 - 5 = 5

[tex]\frac{5}{3}[/tex] or [tex]\bold {1\frac{2}{3}}[/tex]

Therefore, Robert grew [tex]\bold {1\frac{2}{3}}[/tex] more than his brother.


For each pair of shapes, decide whether or not Shape A is congruent to Shape B. Englan your meaning
First pair

Answers

Answer:

blah blah blah blah blah

Jay decides to walk home from school today. He lives 3 miles from school and can walk home in 45 minutes. At what rate is Jay
traveling?
A)
1 mile/10 minutes
B)
1 mile/15 minutes
o
1 mile 20 minutes
D)
1 mile/30 minutes

Answers

To find out the answer you would divide 45 by 3.

45/3 = 15

Therefore the answer is B -
1 mile/15 minutes

Answer:

b 1mile/10 min

Step-by-step explanation:

PLS HELP ME, I REALLY NEED THIS RIGHT NOW, 100 POINTS, IF YOU ANSWER WITH NO EXPLANATION, OR ANSWER FOR THE POINTS YOU WILL BE REPORTED
A marine biologist is studying the growth of a particular species of fish. She writes the following equation to show the length of the fish, f(m), in cm, after m months:

f(m) = 4(1.08)m

Part A: When the marine biologist concluded her study, the length of the fish was approximately 6.86 cm. What is a reasonable domain to plot the growth function? (4 points)

Part B: What does the y-intercept of the graph of the function f(m) represent? (2 points)

Part C: What is the average rate of change of the function f(m) from m = 3 to m = 7, and what does it represent? (4 points)

Answers

9514 1404 393

Answer:

0 ≤ m ≤ 70.4541 cm/month; average rate of growth over last 4 months of study

Step-by-step explanation:

Part A:

The study was concluded after 7 months. The fish cannot be expected to maintain exponential growth for any significant period beyond the observation period. A reasonable domain is ...

  0 ≤ m ≤ 7

__

Part B:

The y-intercept is the value when m=0. It is the length of the fish at the start of the study.

__

Part C:

The average rate of change on the interval [3, 7] is given by ...

  (f(7) -f(3))/(7 -3) = (4(1.08^7) -4(1.08^3))/4 = 1.08^3·(1.08^4 -1)

   ≈ 0.4541 cm/month

This is the average growth rate of the fish in cm per month over the period from 3 months to 7 months.

equation of line M is Y=5/8x+1 . Line N is perpendicular to M. What is the slope of line N?

Answers

Step-by-step explanation:

the slope of a line is always the factor of x in the equation. in our case here : 5/8.

the slope is the y/x ratio indicating how many units y changes, when x changes by a certain amount of units (e.g. when going from one point on the line to another).

the perpendicular slope (crosses the original line in a right angle = 90 degrees) turns x and y upside-down and flips the sign.

so, in our case, it is -8/5.

It takes Alan 15 minutes to jog 1 kilometer. How many seconds does it take Alan to jog 1 kilometer?

Answers

Answer:

900

Step-by-step explanation:

there are 60 seconds in a minute. times fifteen (the number of minutes) by 60(the number of seconds in a minute) to get how many seconds.

60*15=900

hope this helps!

In Pedro’s rose garden, 9 of the rose bushes are blooming and the other 6 rose bushes are not blooming. what is the ratio of the number of bushes that are not blooming?

Answers

Answer:9:6

Step-by-step explanation:

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