Answer:
there are no options given
Step-by-step explanation:
What is (-9)+9 simplified
Answer:
the answer is zero
Step-by-step explanation:
-9+9=0
Dhshshsjehsjsjjsjssjsjsjsjsjsjshshdhdhdhdjdjdjdjhdbd djdhdhdjjdjdjdjdjdjd
Answer:
Dhshshshhshsjehsjsjjsjssjsjsjsjsjsjjshhdhddhhdjdjddjdjjhdhdkdhjsdfggdhjjjjd
Step-by-step explanation:
Simplify: 2 + 7(1 - 3x)
2 + 14x
16x
9-27x
9 - 21x
Answer:
9 - 21x
Step-by-step explanation:
Simplify the following:
7 (1 - 3 x) + 2
Hint: | Distribute 7 over 1 - 3 x.
7 (1 - 3 x) = 7 - 21 x:
7 - 21 x + 2
Hint: | Add the numbers in -21 x + 2 + 7 together.
Add like terms. 2 + 7 = 9:
9 - 21 x
Hint: | Factor out the greatest common divisor of the coefficients of 9 - 21 x.
Factor 3 out of 9 - 21 x:
Answer: 3 (3 - 7 x)
(of the given solutions it's the only correct one, but can be further simplifued to 3 (3 - 7 x)
What is the answer for n-29=-53
Answer:
n=-24
Step-by-step explanation:
Answer:
n =-24
Step-by-step explanation:
[tex]n-29=-53[/tex]
Collect like terms and simplify
[tex]n =-53+29\\\\n =-24[/tex]
Unit rate for 150 students in 3 classes.
Answer:
Step-by-step explanation:
150 students/3 classes= 50 students per class
A pink crayon is made with 12 ml
Answer:
ok
Step-by-step explanation:
Find the value of x in each case:
Answer:
[tex] x = 18 [/tex]
Step-by-step explanation:
Given:
Angle ABC = 2x
Angle CDE = 8x
Required:
Value of x
SOLUTION:
Line AB is parallel to line CD, therefore, angle ABC and angle BCD are alternate interior angles. Alternate interior angles are equal. Thus:
Angle ABC = Angle BCD = 2x
Since, line BC is parallel to line DE, angle BCD and angle CDE are consecutive interior angles.
Consecutive interior angles are supplementary, therefore:
Angle BCD + Angle CDE = 180°
[tex] 2x + 8x = 180 [/tex]
Use this equation to solve for x
[tex] 10x = 180 [/tex]
Divide both sides by 10
[tex] \frac{10x}{10} = \frac{180}{10} [/tex]
[tex] x = 18 [/tex]
Thirty randomly selected students took the calculus final. If the sample mean was 95 and the standard deviation was 6.6, construct a 99% confidence interval for the mean score of all students.a) 91.69 < μ < 98.31b) 92.95 < μ < 97.05c) 91.68 < μ < 98.32d) 92.03 < μ < 97.97
Answer: c) 91.68 < μ < 98.32
Step-by-step explanation:
Let μ be the mean score of all students.
Let [tex]\overline{x}[/tex] represents the sample mean score.
As per given , we have
Sample size : n= 30
Sample mean : [tex]\overline{x}=95[/tex]
Sample standard deviation: [tex]s=6.6[/tex]
Significance level [tex]\alpha=0.01[/tex]
Now, Confidence interval of mean when population standard deviation is unknown is given by :-
[tex]\overline{x}\pm t_{\alpha/2, df}\dfrac{s}{\sqrt{n}}[/tex]
Degree of freedom = n-1 = 29
Critical two-tailed t-value : [tex]t_{0.01/2,29}=t_{0.005,29}=2.756[/tex] [By students' t distribution table]
Confidence interval of mean will be:
[tex]95\pm (2.756)\dfrac{6.6}{\sqrt{30}}\\\\=95\pm (2.756)\dfrac{6.6}{5.47722557}\\\\=95\pm (2.756)(1.205)\\\\=95\pm 3.32\\\\= (95-3.32, 95+3.32)\\\\=(91.68,\ 98.32)[/tex]
i.e. a 99% confidence interval for the mean score of all students : 91.68 < μ < 98.32
So correct option is c) .
To which graph does the point (8;-2) belong?
quadrant 4
.................
Answer:
Quadrant 4
Step-by-step explanation:
In Quadrant 4 the x-axis is positive (+) and the y-axis is negative (-). Here is the point plotted on a coordinate grid to help you understand better.
Hope this helps :)
-5(y + 1) + 6y
Need help
Answer:
1y - 5
Step-by-step explanation:
Remember to follow PEMDAS. Simplify the expression.
PEMDAS =
Parenthesis
Exponents (& Roots)
Multiplication
Division
Addition
Subtraction
First, distribute -5 to all terms within the parenthesis:
-5(y) = -5y
-5(1) = -5
Next, combine like terms:
-5y + 6y - 5
(-5y + 6y) - 5
1y - 5
1y - 5 is your answer.
~
*BRAINLIEST* The lines below are parallel. If the slope of the green line is 8/5, what is the slope of the red line?
Any two parallel lines always have the same slope (but different y intercepts)
The equation of the green line is y = (8/5)x+6
The equation of the red line is y = (8/5)x-3
Slope intercept form is y = mx+b with m as the slope and b as the y intercept.
The slopes must be the same so that each time the line goes up some amount, we move to the right the same amount. Think of a set of stairs to possibly visualize what I mean. If the slopes are different (even slightly), then the lines will intersect at some point and we wouldn't have parallel lines.
FIRST TO ANSWER GETS BRAINLYEST!!!!!!
Answer:
m ≈ 3
Step-by-step explanation:
3.53631284916 x 10^3 ≈ 3 x 10^3
How is completing the square beneficial ? Edge 2020 key words
Which number is equivalent to
A 2
B 9
с
81
729
The answer would be
B. 9
The length of a desk is 3.5 feet. How many centimeters is the length? (There are 2.54 cm in an inch)
Answer:106.
Step-by-step explanation:
Help me please i dont know what to write
Answer:
Decomposers in a food web are organisms that break down dead or decaying organisms and turn them into simpler, inorganic materials, making nutrients available for primary producers. A rotten fruit is not completely wasted because it will go back into the dirt for a producer to use, and the food chain continues.
Hope this helps!
Three and a half more than a number
Answer:
x + 3.5
Step-by-step explanation:
You are adding
hopefully this helps you:)
Give the Domain and Range of H={(-2,-3),(5,9),(5,-2)}
Write your answer using set notations
The domain is the set of possible x values or inputs. We list each unique x value once (ignoring any repeats)
The range is the set of possible y outputs. Convention is to sort the values from smallest to largest.
This relation is not a function because the x value x = 5 corresponds to multiple y values.
Add 6 and 8 the add p
Answer:
Step-by-step explanation:
6 + 8 + p = 14 + p
Answer: 14+p
Step-by-step explanation: We have to add these numbers-
6 + 8 + p
14+p
(Since we don't know the value of p this is how far we can simplify )
Evaluate a + b for a = -46 and b = 34.
Answer:
-12
Step-by-step explanation:
a + b
a = -46
b = 34
-46 + 34 = -12
According to the U.S. Census Bureau, as of April 1, 2000, the total population of the United States was about 3 x 10^8 . The population of Vermont was 6 × 10^5 . The population of the U.S. was how many times the population of Vermont in April of 2000?
2 times
500 times
1,000 times
50,000 times
Divide US population by Vermont :
3x 10^8 / 6x10^5
3/6 = 1/2 = 0.5
10^8 / 10^5 = 10^3
0.5 x 10^3 = 500
The answer is 500 times
All we need to do is divide.
3*10^8/6*10^5
0.5^8-5
0.5^3
500
Therefore, the answer is 500 times.
Best of Luck!
Which of the following fractions is greater than 2/5 and less than 3/5 ?
Answer:the answer would be 2.5/5
Factor completely 4x^4− 20x^3 + 12x^2
Answer:
Step-by-step explanation:
4x^2(x^2 - 5x + 6)
4x^2(x - 3)(x - 2)
HELP ME PLS i truly need help on this
Step-by-step explanation:
75+54
129°
the answer is 129°
Someone help me please i attached a picture...
Answer:
the perimeter is 13yd + 13yd + 5yd +5yd = 36yd
the area is 5yd + 5yd = 10yd, 10yd × 12yd ÷ 2 = 60yd
Paul says that in the number 6,367, one 6 is 10 times as great as the other 6. Is he correct?
Answer:
Yes
Step-by-step explanation:
6,000 is 10 times greater than 60
David noticed that locker 49 was changed exactly 3 times it was opened by Student one closed by student seven and open my Student 49 what other lockers were changed exactly 3 times what is the relationship between these numbers
Answer:
The other lockers that were changed exactly 3 times are:
Locker 1 and Locker 7
Step-by-step explanation:
Question: What other lockers were changed exactly 3 times?
Answer: Lockers 1 and 7
How?
Locker 1 was opened by a student other than student 1; it was closed by a student other than student one; and it was opened by student 1.
Same happened with Locker 7.
The relationship between these numbers is an associative relationship.
I am a real number I am a rational number I am not a natural number I am less than -13 what number am I
Answer:
Any number less than -13.
Step-by-step explanation:
If the number is real and rational and non-natural, this means that it can be any number in the negative number space.
Additionally, since the number has to be less than -13, then the number could be any number less than -13.
With all these things considered, the number is any number less than -13 that is real and rational.
Cheers.
Write the quadratic equation whose roots are -4 and 4 and whose leading coeffiecient is 3. Use the letter X to represent the variavble.
Answer:
3x^2 - 48 = 0
Step-by-step explanation:
The roots of a quadratic equation whose roots are -4 and 4, means that valid solutions for the quadratic equation are -4 and 4.
The two forms we know for the quadratic equation are the factored binomials:
(ax + cy)(bx + dz) = 0
and the full equation
ax^2 + bx + c = 0
We will start with the factored form:
(x + 4) ( x - 4) = 0
Note that if we solve this, we get the roots: x + 4 = 0 ==> -4 && x - 4 = 0 ==> 4
Now we apply foil to get the unfactored form:
(x + 4) (x - 4) = 0
x * x + x * -4 + 4 * x + 4 * -4 = 0
x^2 + -4x + 4x + -16 = 0
x^2 - 16 = 0
And now we want the leading coefficient to be 3.
3x^2 - 16 = 0
This looks like what we want; however, now with the leading 3, our solutions are no long +4 and -4. So, we need to re-evaluate.
Going back to the binomials with the idea of a leading 3, let's rewrite them to still give us the solutions 4 and -4, but with the 3 included:
(3x + 12) (x - 4) = 0
Note, we simply multipled one binomial by 3 to maintain the roots of the original, but also incorporate the leading 3.
3x + 12 = 0 x - 4 = 0
3x = -12 x = 4
x = -4
So now, we simply apply foil to this new equation of binomials to get our final quadratic equation:
(3x + 12) (x - 4) = 0
3x * x + 3x * -4 + 12 * x + 12 * -4 = 0
3x^2 + -12x + 12x + -48 = 0
3x^2 - 48 = 0
This is our quadratic equation we wish to use.
Note, we could have gotten this same equation by simply multiplying the original (x^2 - 16) = 0 by 3.
Cheers.
a turtle crawled at a speed of 1.2 meters per minute for nine minutes how far did the turtle crawl
Answer:
10.8 meters
Step-by-step explanation:
1.2 times 9 minutes= 10.8
Answer:
10.8 meters
Step-by-step explanation:
9 * 1.2 = 10.8