Solve the inequalities by graphing. Identify the graph that shows the following equations.
x + y < 1
x − y > 2
Answer:
It's the 4th graph on the 1st sheet
Step-by-step explanation:
To find the average of a student’s test scores, add the scores and divide by the number of tests. Suppose Ryan scored 85, 92, 88, and 98 on four tests. Write a numerical expression to describe Ryan’s average test score.
Answer:
(85+92+88+98)/4
Step-by-step explanation:
No equal sign because it is a numerical expression.
GIVING BRAINLIEST, THANKS AND FIVE STARS!!
Express each number as a product of its prime numbers.
1. 245
2. 510
3. 250
4. 1,089
5. 4,725
6. 900
18. 27,000
Answer:
245 = 5*7*7
510 = 3*17*2*5
250 = 5*5*5*2
1089 = 3*3*11*11
4725 = 3*3*3*5*5*7
900 = 3*3*5*5*2*2
27000 = 3*3*3*5*5*5*2*2*2
A bookshop has some fiction and non books. 2/5 of the books are fiction books. Of these, 1/5 are mystery stories. 1/3 of the non fiction books are mystery stories too. What fraction of all the books in the shop are mystery books?
Answer:
1/3 of all of the books
Step-by-step explanation:
5/5 - (2/5 +1/5) =2/5
2/5(1/3) = 2/15 nonfiction mystery books
2/15 + 1/5 = mystery books
1/5 = 3/15
2/15 + 3/15 = 5/15
5/15 = 1/3
I WILL MARK AS BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.
2( 4x + 1 ) = 3x - 6x
There is 2 questions and I would like time to answer both of them! Please and thank you!
PLEASSEEE HELPPPPPPPPP I WILL GIVE BRAINLIEST
Answer:
The answer's below :)
Hope this helps <3
Help pleaseeeeeeeeeeeeee!!!!!!!!!!!!!!!! T^T
Answer: Therefore,
1 + (-5/8)
Solve it,
= 1-(5/8)
= (8-5)/8
= 3/8
Step-by-step explanation:
Please help!! I will appreciate it
Answer:
Answer Is B
for every table there 14 napkins
Please help! Greatly appreciated
Answer:
(6, 6)
Step-by-step explanation:
Point P is located at (6, -4). Point S is located 10 units above point P. This means we are going up on the y-axis. Going up 10 units from -4 puts point S at 6. Therefore, point S is located at (6, 6).
Please get right and do quick
Answer:
h = S/(2 π r) - r
Step-by-step explanation:
Solve for h:
S = 2 π r (r + h)
S = 2 π r (r + h) is equivalent to 2 π r (r + h) = S:
2 π r (r + h) = S
Divide both sides by 2 π r:
r + h = S/(2 π r)
Subtract r from both sides:
Answer: h = S/(2 π r) - r
Answer:
h=s/(2 π r) -r
Step-by-step explanation:
Sorry that the last question was wrong to help me with this one.
Answer:
sure
Step-by-step explanation:
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Which of the following statements is true?
a) Cube root of a perfect cube number ending with 8 ends with 8.
b) Cuberootofaperfectcubenumberendingwith6endswith2.
c) Cube root of a perfect cube number ending with three zeroes ends
with one zero.
d) Cube root of a negative number may be positive.
Answer:
b is the correct answer
Step-by-step explanation:
(ii) A perfect cube does not end with two zeros. (iii) If square of a number ends with 5, then its cube ends with 25. (iv) There is no perfect cube which ends with 8.Cube roots of negative numbers are always negative.
I need help someone help me please I guess
Answer:
C. -4 degrees celsius
Step-by-step explanation:
Answer:
-4 degrees celsius
Step-by-step explanation:
you can see that there are 5 tiny lines between 0 and -10 so that must mean that 10 divided by 5 = 2. so each gap is equal to 2 degrees celsius. that means that the red liquid is upto the -4 point
Helppp me pleaseeeee
Answer:
485 × [tex]10^{-10}[/tex]
Step-by-step explanation:
first we need to convert the number to fraction
0.0000000485
[tex]\frac{0.0000000485}{10000000000}[/tex]
it will be
[tex]\frac{485}{10000000000}[/tex]
or can be written as
[tex]\frac{485}{10^{10} }[/tex]
now we need to convert it to scientific notation
485 × [tex]10^{-10}[/tex]
I WILL MARK AS BRAINLIEST! Write an Equation that represents the points in the table
Answer:
y = 3x + 5
Step-by-step explanation:
Based on the table, as x increases by 1, y increases by 3. Moreover, when x = 0, y = 5. Therefore, the slope is 3 and the y-intercept is (0, 5).
Substitute the information for the variables in the slope-intercept form equation.
y = mx + b
m = slopeb = y-intercept valueAnswer:
y=3x +5
Step-by-step explanation:
......................
Use complete sentences to describe why √-1 ≠ -√1
Well let's say that to compare these two numbers, we have to start with the definition first.
Definition
[tex] \displaystyle \large{ {y}^{2} = x} \\ \displaystyle \large{ y = \pm \sqrt{x} }[/tex]
Looks like we can use any x-values right? Nope.
The value of x only applies to any positive real numbers for one reason.
As we know, any numbers time itself will result in positive. No matter the negative or positive.
Definition II
[tex] \displaystyle \large{ {a}^{2} = a \times a = |b| }[/tex]
Where b is the result from a×a. Let's see an example.
Examples
[tex] \displaystyle \large{ {2}^{2} = 2 \times 2 = 4} \\ \displaystyle \large{ {( - 2)}^{2} = ( - 2) \times ( - 2) = | - 4| = 4}[/tex]
So basically, their counterpart or opposite still gives same value.
Then you may have a question, where does √-1 come from?
It comes from this equation:
[tex] \displaystyle \large{ {y}^{2} = - 1}[/tex]
When we solve the quadratic equation in this like form, we square both sides to get rid of the square.
[tex] \displaystyle \large{ \sqrt{ {y}^{2} } = \sqrt{ - 1} }[/tex]
Then where does plus-minus come from? It comes from one of Absolute Value propety.
Absolute Value Property I
[tex] \displaystyle \large{ \sqrt{ {x}^{2} } = |x| }[/tex]
Solving absolute value always gives the plus-minus. Therefore...
[tex] \displaystyle \large{ y = \pm \sqrt{ - 1} }[/tex]
Then we have the square root of -1 in negative and positive. But something is not right.
As I said, any numbers time itself of numbers squared will only result in positive. So how does the equation of y^2 = -1 make sense? Simple, it doesn't.
Because why would any numbers squared result in negative? Therefore, √-1 does not exist in a real number system.
Then we have another number which is -√1. This one is simple.
It is one of the solution from the equation y^2 = 1.
[tex] \displaystyle \large{ {y}^{2} = 1} \\ \displaystyle \large{ \sqrt{ {y}^{2} } = \sqrt{1} } \\ \displaystyle \large{ y = \pm \sqrt{1} }[/tex]
We ignore the +√1 but focus on -√1 instead. Of course, we know that numbers squared itself will result in positive. Since 1 is positive then we can say that these solutions exist in real number.
Conclusion
So what is the different? The different between two numbers is that √-1 does not exist in a real number system since any squared numbers only result in positive while -√1 is one of the solution from y^2 = 1 and exists in a real number system.
Answer:
Therefore [tex]\sqrt{1} \neq -\sqrt{1}[/tex]
Step-by-step explanation:
[tex]\sqrt{-1} \\[/tex] cannot be calculated as no two identical numbers that are multiplid could give -1. However - [tex]\sqrt{1}[/tex] means -1 x [tex]\sqrt{1}[/tex] = -1 x 1 = -1 . Therefore [tex]\sqrt{1} \neq -\sqrt{1}[/tex]
Can someone pls help thxs
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□X
□V
□V
□X
□V
the V ones are answers.Solve the inequalities by graphing. Identify the graph that shows the following equations.
x + y > 3
x + y < 5
Answer:
x+%Y = 7
Step-by-step explanation:
&.x 1 +1223 +23888 +667x228833 .7%/11 =7
Please help me with this
The answer is 64. Length × Width
5(x+)+11=25-3x add workk
Answer: calculdora
5 (x +) + 11 = 25-3x adicionar trabalho
Step-by-step explana
I WILL MARK AS BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.
Step-by-step explanation:
in order of the chart they are in axis number:
3
3
2
2
4
1
4
3
PLZZ HELPP!! Find the perimeter of the following polygon.
10 in
10 in
11 in
12 in
Answer:
43in
Step-by-step explanation:
Perimeter = sum of the sides
Perimeter = 11 + 10 + 10 + 12 = 43
5(3)+t(24)= I need help wish me the best of luck
Answer:
15+24t
Step-by-step explanation:
First, I copied the expression down. Then, I used PEMDAS, so I multiplied 5x3. That left 15 + t(24). I just gave the variable to 24, making 24 t's coefficient. So, the simplified answer would be 15 + 24t.
There is 2 questions in this picture
Answer:
D. [tex]\frac{2}{5}[/tex]
C. 37.5
Step-by-step explanation:
29: Divide 2 by 5.
30: Just divide.
I hope this helps!
pls ❤ and mark brainliest pls!
Katie, Elizabeth, and Siobhan volunteer at the
hospital. In a week, Katie volunteers 3 hours
more than Elizabeth does and Siobhan
volunteers 1 hour less than Elizabeth. Over
3 weeks, the number of hours Katie
volunteers is equal to the sum of Elizabeth’s
and Siobhan’s volunteer hours in 3 weeks.
Complete the table to find out how many
hours each person volunteers each week.
Answer: 3(x+3) = 3X + 3(x-1)
3x + 9 = 3x + 3x - 3
3x + 9 = 6x - 3
0 = 6x - 3 - 3x - 9
0 = 3x - 12
12 = 3x
x=4
Step-by-step explanation:
I need help on this question.
Answer:
answer for your question is 2) 5 and 7
Please help me! Greatly appreciated
Answer: 18
Step-by-step explanation: -8,2 is 18 away from 10,2 because -8 is 18 away from 10
Please help me on this question
Answer:
125 10/14
Step-by-step explanation:
the 125 doesn't actually matter so you can ignore that part.
since it is being divided by 14, the denominator of the fraction is 14. the remainder is 10, so the answer should be in the form of x 10/14, which the 1st answer is