Answer:
Ivory is a hard, white material from the tusks and teeth of animals, that consists mainly of dentine, one of the physical structures of teeth and tusks. The chemical structure of the teeth and tusks of mammals is the same, regardless of the species of origin.
Step-by-step explanation:
.
"The quotient of
a number and 6
minus 3 is l”
Answer:
3
Step-by-step explanation:
6-3=3
8-5=3
so that is the answer
Please help me out I can’t not afford to fail math right now I will mark brainliest when it lets me
Answer:
x = 5, -5
Step-by-step explanation:
17+x^2=42
-17 -17
x^2 = 25
x = + or - root of 25
x = 5,-5
The outdoor temperature was 8 degrees at midnight. The temperature declined 5 degrees during each of the next 3 hours. What was the temperature at 3 A.M?
Answer:
-9 degrees
Step-by-step explanation:
workings -3 * 3 = -9 degrees
Recall that the perimeter of a rectangle is P=2(W+L), where W is the width and L is the length. The length of a rectangle is 23 feet more than the width. If the perimeter is 70 feet, then what is the length of the rectangle, in feet?
Answer:
Length = 6 + 23 = 29 feet
Step-by-step explanation:
Width = x
Length = x + 23
2x + 2(x+23) = 70
2x + 2x + 46 = 70
4x = 70-46
x = 24/4
x = 6
What is the value of the expression shown?
1/2(7.9−0.08)
Answer:
1/2(7.9-0.08) = 3.91
Step-by-step explanation:
Find the value of x.
So you know that all the angles in a triangle must add up to 180. Therefore, you can make this equation:
[tex](-20x+3)+(-40x+18)+(-15x+9)=180[/tex]
And now just solve for x!
[tex]-75x+30=180\\-75x=160\\x=\frac{160}{-75}\\x=-2.4[/tex]
So, your answer is:
x = -2.4
2x ( 2x - 3 )
Plz help
Answer:
4x² - 6x
Step-by-step explanation:
2x(2x - 3)
Distribute 2x into the parenthesis:
2x(2x - 3) = 4x² - 6x
Given that a box has 4 blue marbles, 3 red marbles, and 5 yellow marbles, use the probability formulas to answer the following questions. What is the probability of drawing a blue marble? Drawing a marble that is not red? Drawing a red and yellow marble at once? Drawing a red or blue marble? Drawing a red marble, put it back, and then drawing a yellow marble? Drawing a yellow marble, keeping it, and then drawing another yellow marble? Drawing a yellow marble, given that a red marble was drawn on the first draw and not replaced?
Answer:
CHUPAPI MUNYNYOStep-by-step explanation:
MESHEPO MESHEEPOOCould someone help please? Thanks for your time!
The rate of change is also known as the slope or rise / run.
Slope Formula: (y2 - y1) / (x2 - x1)
First, we'll need two points that are on the line. You can choose any two points you want, as long as they are on the line.
Point 1 = (0, 1)
Point 2 = (-2, -3)
Then, we'll plug the two points into the formula and solve for the slope.
(-3 - 1) / (-2 - 0)
(-4) / (-2)
2
The rate of change of this line is 2.
Hope this helps!! :)
Answer: the rate of change is 2
Step-by-step explanation:
x-16=9(2x+3)-9 find x
Answer:
x= -2
TO MUCH STEPS
5)
4
3
2
1
3
-2
-1
1
- 1
2
3 4
2
3
-4
-6
Find the slope of the line graphed.
My Answer:
Need help with number one
Answer:-3/2
Step-by-step explanation: transform the expression from 3/4+-9/4 to 3-9/4=-6/4 then reduce 6/4 to -3/2
(50 POINTS^^ JUST NEED HELP ^^)
Which statement correctly describes the relationship between the graph of f(x)=x and the graph of g(x)=f(x)+5 ?
A)The graph of g(x) is the graph of f(x) translated 5 units up.
B) The graph of g(x) is the graph of f(x) translated 5 units right.
C) The graph of g(x) is the graph of f(x) vertically compressed by a factor of 5.
D) The graph of g(x) is the graph of f(x) vertically stretched by a factor of 5.
2. The graph of function g(x) is a vertical stretch of the graph of function f(x)=x by a factor of 6.
Which equation describes function g(x)?
A) g(x)=6f(x)
B) g(x)=f(x)−6
C) g(x)=16f(x)
D) g(x)=f(x)+6
Given the system of equations, what is the solution?
2x + y = 7
2x - 3y = -1
Answer:
[tex](\frac{5}{2}, 2)[/tex]
Step-by-step explanation:
Hi there!
We are given this system of equations:
2x + y = 7
2x - 3y = -1
And we want to find the solution
There are multiply ways to solve systems of equations, but let's solve this one by elimination, where we will add the two equations together to clear one of them, solve for the un-cleared variable, and then use the value of the un-cleared variable to solve for the cleared one
Before clearing a variable, we need to make sure that the signs on the variables are opposites; for example, -3 and 3, which will add together to get 0
We can multiply the equations beforehand if needed in order to manipulate the numbers.
For example, we can multiply the second equation by -1 in order to switch the signs of each number in that equation:
-1(2x-3y=-1)
-2x+3y=1
Now the signs in front of x are 2 and -2, so we can add the equations together to clear them:
2x + y = 7
-2x + 3y = 1
Add the equations together
4y = 8
Divide both sides by 4
y=2
Now let's use 2 as y to solve for x
In the first equation, substitute 2 for y:
2x + 2 = 7
Subtract 2 from both sides
2x = 5
Divide both sides by 2
[tex]x=\frac{5}{2}[/tex]
As a point, the answer is [tex](\frac{5}{2}, 2)[/tex]
Hope this helps!
100 points for anyone who solves this :)
Eric traveled to three cities on a single highway. The distance from his original location to the first city was 100 miles more than the distance from the first city to the second city. The distance from the second city to the third city was 10 miles less than the distance from the first city to the second city. If the distance from his original location to the first city and the distance from the second city to the third city were the same, what was the total distance Eric traveled?
Answer:
Well think about it, the key words there are more than and less than so if he traveled let's say from his house until the first city that's 100 miles for the first one and then they say that he traveled 10 miles less than the distance from the first city until the second city. The total distance is 280 because if you read the very last sentence it says that from the original distance from the first city is about 100 miles and then it says if the the distance from the second city to the third city was the same that means that the equation goes like this: (90*2)+100 and in order to get this correctly you must do P.E.M.D.A.S which is parenthesis, exponents, multiplying, dividing, adding and subtracting so there you go.
Answer:
Well think about it, the key words there are more than and less than so if he traveled let's say from his house until the first city that's 100 miles for the first one and then they say that he traveled 10 miles less than the distance from the first city until the second city. The total distance is 280 because if you read the very last sentence it says that from the original distance from the first city is about 100 miles and then it says if the the distance from the second city to the third city was the same that means that the equation goes like this: (90*2)+100 and in order to get this correctly you must do P.E.M.D.A.S which is parenthesis, exponents, multiplying, dividing, adding and subtracting so there you go.
Step-by-step explanation:
Someone help I really cannot get my brain to function
Answer:
21
Step-by-step explanation:
for the 42.
21×2=42
t t t t t t. t tt. t t t. r r r 4 4 4. r r r t t t t t t t t r r r r r r t. tt t t f f. re enne e r r r
Write the equation of each line in slope-int. Form
y=mx + b
3. Slope = -2 and y-int. = -6
I
Answer:
y=-2x-6
Step-by-step explanation:
You put the slope before the x and the y intercept goes at the end.
HELPPPP
Which expression is a perfect square?
A. x² - 4x + 4
B. x2 - 4x - 4
C. 12 - 9x + 9
D. 12 - 9x – 9
Answer: Choice A
========================================================
Explanation:
A perfect square trinomial is of the form
(m+n)^2 = m^2 + 2mn + n^2
We can see why this works through use of the FOIL rule.
So the first and last terms must be perfect squares, and they must be positive. This rules out choices B and D since we have -4 and -9 as those last terms being negative.
Choice C is ruled out because the middle coefficient -9 isn't correct. The middle coefficient must be some even number since 2 is a factor of 2mn.
This leaves choice A. We can do a bit of trial and error to find that
(x-2)^2 = x^2 - 4x + 4
showing that choice A is a perfect square trinomial.
Answer:
A) x² - 4x + 4
Step-by-step explanation:
Given the following special factoring formulas on perfect square trinomials:
u² + 2uv + v² = (u + v)²
u² - 2uv + v² = (u - v)²
Apply these concepts on the given set of equations to see which special factoring formulas apply on the given options. I will only work on one of the given options, and you could apply these same techniques on the other ones to compare the results with your calculations.
To find the binomial factors of quadratic equations, you must find factors with product uv, and sum v.
In Option A: x² - 4x + 4
Right off the bat, it seems like the difference of squares may apply to this equation. You must find the factors that will product of 4 and a sum of -4.
The possible factors are:
product uv: -2 × -2 = 4,
sum v : -2 + -2 = -4
Hence, the binomial factor of x² - 4x + 4 = (x - 2)²
If you expand this binomial through FOIL method:
(x - 2)(x - 2) = x² - 2x - 2x + 4 = x² - 4x + 4
This means that the trinomial x² - 4x + 4 produces a perfect square binomial factors of (x - 2)².
Therefore, the correct answer is Option A) x² - 4x + 4.
Please mark my answers as the Brainliest, if you find this helpful :)
2.11 Incomes of college grads. The Census Bureau reports that the mean
and median income of people who worked full-time in 2001 and had at
least a bachelor's degree were $53,054 and $72,674. Which of these
numbers is the mean and which is the median? Explain your reasoning.
2.12 Internet access. How much do users pay for Internet access? Here are
the rhonthly fees (in dollars) paid by a random sample of 50 users of
commercial Internet service providers in August 2000:4
20 40 22 22 21 21 20 10 20 20
20 13 18 50 20 18 15 8 22 25
22 10 20 22 22 21 15 23 30 12
9 20 40 22 29 19 15 20 20 20
20 15 19 21 14 22 21 35 20 22
(a) Make a stemplot of these data. Briefly describe the pattern you see.
About how much do you think America Online and its larger
competitors were charging in August 2000? Are there any outliers?
(b) To report a quick summary of how much people pay for Internet
service, do you prefer ands or the five-number summary? Why?
Calculate your preferred summary
-2 13/15 -0.75 2 from greatest to least
Answer:
greatest (2, 13/15, -0.75, -2) least
Step-by-step explanation:
Select the elements in
A
.
A
=
{
x
:
x
−
3
=
5
}
Answer:
3
Step-by-step explanation:
Express 92 as a product of its prime factors
2² × 23
Step-by-step explanation:
92 = 2 × 46
92 = 2 × 2 × 23
92 = 2² × 23
4
Find the equation of the line parallel to line h that
passes through (-4, 2).
Y=-1/3x+10/3 y=-1/3x2/3 y= 3xx+14 y=-3x-10
It’s A y=1/3x+10/3
Answer:
y = 1/3x + 10/3
Step-by-step explanation:
Slope: 1/3
Point (-4,2)
b = 2 - (1/3)(-4) = 10/3
Please please help me with this question please help me now please
Answer:
a) linear, straight when graphed and no exponents
b) quadratic, x has exponent
c) quadratic, x has exponent
d) linear, no exponent
e) quadratic, x has exponent
f) i think it's neither because there's two variables that can't add together
Step-by-step explanation:
Answer:
A is linear because a linear equation is mapped in the form y=ax+b and results in a straight line when graphed. This equation has a slope, 1, which occupies the space for a and a y-intercept of 3 which occupies the space for b
B is neither because it doesn't fit the linear form or the quadratic form (which is constrained by the equation y=ax^2+bx+c. The highest degree for this form is 2.) I believe this function is actually a type of cubic which is not an option for the question.
C is a quadratic because it follows the form y=ax^2+bx+c and results in a parabola
d. 3x-y=5 is linear because even though it is not in the y=ax+b form, it can be manipulated into it by subtracting 3x from both sides and then dividing by -1 on both sides to get y=3x-5 which fits the form and graphs a line.
e. 5-x^2=89 would be neither because there is only one variable and there is no value of y that can be solved for. While we can find an x value (or perhaps multiple x values depending on the equation) it wouldn't result in a graphable equation which is a necessity to be classified as a linear or quadratic. In fact, I believe this is actually just an equation and not a function at all and since linear and quadratics are forms of functions they cannot be either. This is because a function is defined as a relation between two variables where each input has one (and only one) output and this equation doesn't have two variables and wouldn't have an output.
f. Neither for the same reason as in e
Hope this helps!
How many 135-inch-thick books can fit on a 1412-inch-long bookshelf?
Answer:
about 32 books (rounded)
Step-by-step explanation:
1412/135=32
2/3-(-5/3)
Find the difference. Write fractions in simplest form.
Answer:
Step-by-step explanation: to solve this we'd do 2-(-5) which is the same as 2 + 5 which is 7. final answer is 7/3 or if its a mixed number, 2 1/3
Which of the following numbers are divisible by 8?
a) O 2048
b) O 72 045
c) O 800
d) 56 120
Which graph represents the function h(x) = |x| + 0.5?
Answer:
Step-by-step explanation:
Answer: its graph C!, I got it right
HELPP mee pleassseeeeeeeed
2. Find the value of x and y.
62°
(4x+2)°
(12y)
144°
Ox= 15, y= 12
Ox= 14, y= 11
Ox=14, y = 12
Ox= 15, y= 11
Answer:
x=15,y=12
Step-by-step explanation:
Alternate angles are those angles that are on the opposite side of the parallel lines transverse with a line touching both parallel lines.
The value of x and y are 15 and 12.
x = 15
y = 12
Option A is the correct answer.
What are corresponding angles?The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.
Corresponding angles are equal.
We have,
The figure contains four angles.
62 and (4x + 2) are alternate angles.
12y and 144 are alternate angles.
We know that alternate angles are equal.
So,
62 = 4x + 2 ____(1)
12y = 144 _____(2)
From (1) we get,
62 = 4x + 2
Subtract 2 on both sides.
62 - 2 = 4x + 2 - 2
60 = 4x
Divide both sides by 4.
4x = 60
x = 60/4
x = 15
From (2)
12y = 144
Divide both sides by 12.
y = 144/12
y = 12
Thus,
The value of x and y are 15 and 12.
x = 15
y = 12
Option A is the correct answer.
Learn more about corresponding angles here:
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