Answer:
I think the answer is d
Step-by-step explanation:
Below are two parallel lines with a third line intersecting them.
Answer:
x = 50
Step-by-step explanation:
How many ways can 7 paintings be lined up on a wall horizontally?
Answer:
I think in 49 ways by changing each other
A printer prints 28 photos in 8 minutes. How many minutes does it take to print 21 photos?
Answer:
6 min.Step-by-step explanation:
ratio and proportion:
28 photos = 21 photos
8 min x min.
21 (8) = 28 (x)
x = 168 / 28
x = 6 min.
Two points on the graph of the linear function f are (0,5) and (3,8). Write a function g whose graph is a reflection in the x-axis of the graph of f.
Answer:
Step-by-step explanation:
As first step we must obtain the equation of the line. According to Analytical Geometry, we can get a equation of the line by knowing two different points. A linear function is represented by the following expression:
[tex]y = m\cdot x + b[/tex]
Where:
[tex]x[/tex] - Independent variable, dimensionless.
[tex]y[/tex] - Dependent variable, dimensionless.
[tex]m[/tex] - Slope, dimensionless.
[tex]b[/tex] - y-Intercept, dimensionless.
If we know that [tex](x_{1}, y_{1}) = (0, 5)[/tex] and [tex](x_{2}, y_{2}) = (3, 8)[/tex], the following system of linear equations is formed:
[tex]5 = 0\cdot m + b[/tex]
[tex]b = 5[/tex] (Eq. 1)
[tex]8 = 3\cdot m + b[/tex]
[tex]3\cdot m + b = 8[/tex] (Eq. 2)
From (Eq. 1) in (Eq. 2) we get the value of [tex]m[/tex]:
[tex]3\cdot m + 5 = 8[/tex]
[tex]3\cdot m = 3[/tex]
[tex]m = 1[/tex]
The equation of the line that contains the points (0, 5) and (3, 8) is [tex]f(x) = x + 5[/tex].
As next step we must apply a reflection in the x-axis, whose operation is defined as follows:
[tex](x', y') \longrightarrow (x, -y)[/tex]
That is:
[tex]x' = x[/tex]
[tex]y' = -y[/tex]
Then, the function [tex]g(x)[/tex] is [tex]g(x) = -x-5[/tex]. We plot each function and include the result in the attachment below.
Can someone please help,I have to turn this in before 12
Answer:
h = 290 ÷ 7.25, h = 40 u²
Step-by-step explanation:
The formula for the area of a triangle is A = (Bh)/2.
You have already correctly identified the first two steps.
The third step would be to divide 290 by 7.25 to isolate h.
h = 290 ÷ 7.25
= 40 u²
Solve the equation 46,207 x 83 = ___.
Answer:
3,835,181
Step-by-step explanation:
Answer:
The answer would be A, 3,835,181
Step-by-step explanation: I did the test, do you do schoology?
Factorise
9x² -(3y - 4x)²
Answer:
(7x-3y) (-x+3y)
Step-by-step explanation:
(3x-3y+4x) (3x+3y-4x)
(3x-3y+4x) (3x+3y-4x)
(7x-3y) (-x+3y)
what is 25% of 40?
Answer:10
Step-by-step explanation:
6( (5)-(7) )
________
(2)
Answer:
-12Step-by-step explanation:
[tex]6( (5)-(7) )\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(\left(5\right)-\left(7\right)\right)\:\\:\quad -2\\\\=6\left(-2\right)\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:6\left(-2\right)\:\\:\quad -12\\\\=-12[/tex]
Andre's coin jar contains 85 cents. There are no
quarters or pennies in the jar, so the jar has all
nickels, all dimes, or some of each.
16
1) Write an equation that relates the number of
nickels, n, the number of dimes, d, and the
amount of money, in cents, in the coin jar.
Can You please help me on this they don’t have what I’m looking for.
===========================================================
Explanation:
n = number of nickels
d = number of dimes
Since each nickel is 5 cents, and each dime is 10 cents, we can say
5n = value of all the nickels (ignore the dimes) in cents
10d = value of all the dimes (ignore the nickels) in cents
5n+10d = value of all the coins (nickels+dimes) in cents
5n+10d = 85 is the equation we're after
-----------------------
Extra Info:
We don't have enough info to be able to solve for n and d.
The list of all possible solutions are
n = 17, d = 0n = 15, d = 1n = 13, d = 2n = 11, d = 3n = 9, d = 4n = 7, d = 5n = 5, d = 6n = 3, d = 7n = 1, d = 8Note how each time n drops by 2, d goes up by 1.
This is because 2 nickels = 1 dime.
In other words, for every 2 nickels we take away, we add on 1 dime. This works in reverse as well (for every dime removed, add 2 nickels).
The equation to represent the given situation is 5n+10d = 85.
Given that, Andre's coin jar contains 85 cents.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Now, n = number of nickels and d = number of dimes.
Since each nickel is 5 cents, and each dime is 10 cents, we can say
5n = value of all the nickels (ignore the dimes) in cents
10d = value of all the dimes (ignore the nickels) in cents
So equation is 5n+10d = value of all the coins (nickels + dimes) in cents
That is, 5n+10d = 85
Therefore, the equation to represent the given situation is 5n+10d = 85.
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What is the answer to this equation. 1/3 + 1/4
Answer:
1/3+1/4
take lcm,
1×4/3×4 + 1×3/4×3
4/12+3/12
4+3/12
7/12
hope it helps u
Answer: 7/12
Step-by-step explanation:
To add or subtract fractions, first you should make them into LCD (Least Common Denominator). Then, add/subtract the numerator as usual and let the denominator remain.
Solve:
#LCD (Least Common Denominator)
1/3 and 1/4
3 and 4 least common factor is 12
Thus, 12 will be the least common denominator1/3=4/12
1/4=3/12
#Add
1/3+1/4
=4/12+3/12
=7/12
ILL MARK BRAINLIEST
Simplify the expression below. 10−2⋅32+13
Answer:
if you are multiplying the 2 and the 32, the answer would be -41
Step-by-step explanation:
hope this helps! :) :) :) (please give me brainliest!)
Answer:
- 41
Step-by-step explanation:
10 - 2 · 32 + 13
Multiply first because of PEMDAS
10 - 64 + 13
- 54 + 13
- 41
-----------------------------------------------------------------------------
If that's not the answer you wanted, you might have forgot to type in the parenthesis.
Hope this helped!!!
if angle w and angle v are supplementary angles and angle v=49, find angle w
Answer: 131°
Step-by-step explanation:
Supplementary angles are the angles that when we add them together, their sum is equal to 180°.
From the question, we are informed that angle w and angle v are supplementary angles and angle v=49.
V + W = 180°
49° + W= 180°
W = 180° - 49°
W = 131°
One $100.00 bill, four $20.00 bills, six $10.00 bills, three $5.00 bills, and six $1.00 bills are placed in a bag. If a bill is
chosen at random, what is the expected value for the amount chosen?
Answer:
1
Step-by-step explanation:
There is more of those so it has a bigger chance of being chosen
whats 3/7 divided by 2/3
Answer:
3/7 ÷ 2/3 = 9/14
Step-by-step explanation:
When we divide two fractions, such as 3/7 ÷ 2/3, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.
The sum of three consecutive numbers is 45 what is the smallest of the three numbers
the smallest of the three numbers is 14
Step-by-step explanation:Hi there !
three consecutive numbers a ; b ; c
b = a + 1
c = a + 2
a + b + c = 45
replace b ; c
a + (a + 1) + (a + 2) = 45
3a = 45 - 3
3a = 42
a = 42 : 3
a = 14
Good luck !
11+2x=x+4 whoever answered can you show the work?
Answer:
x= -7
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2x+11=x+4
Step 2: Subtract x from both sides.
2x+11−x=x+4−x
x+11=4
Step 3: Subtract 11 from both sides.
x+11−11=4−11
x=−7
in The table below is constructed based on the entire senior class's gender and eye color. Using this table, what is the probability of randomly selecting a black eyed senior female?
Answer:
20/167
Step-by-step explanation:
There are 20 female students with black eyes out of a total of 167 students
Answer:
20/167, or 11.97%%
Step-by-step explanation:
There are 187 seniors.
Of those 187, there are 45 who have black eyes.
Of those 45 black eyes, 20 of them are female.
There are 20 black eyed female seniors.
There are 167 total students.
The probability is 20/167 or 11.9760479%.
Algebraically solve the following system of equations.
(x - 2)2 + (y - 3)2 = 16
x + y - 1 = 0
The solutions to the system of equations are (2, -1) and (-2,3)
How to solve the system of equations?The equations are given as:
[tex](x - 2)^2 + (y - 3)^2 = 16[/tex]
x + y - 1 = 0
Make y the subject in x + y - 1 = 0
y = 1 - x
Substitute y = 1 - x in [tex](x - 2)^2 + (y - 3)^2 = 16[/tex]
[tex](x - 2)^2 + (1 - x - 3)^2 = 16[/tex]
Evaluate
[tex](x - 2)^2 + (-x - 2)^2 = 16[/tex]
Expand the equations
[tex]x^2 - 4x + 4 + x^2 + 4x + 4 = 16[/tex]
Evaluate the like terms
[tex]2x^2 + 8 = 16[/tex]
Subtract 8 from both sides
[tex]2x^2 = 8[/tex]
Divide by 2
[tex]x^2 = 4[/tex]
Take the square roots of both sides
x = ±2
Substitute x = ±2 in y = 1 - x
y = 1 - 2 = -1
y = 1 + 2 = 3
Hence, the solutions to the system of equations are (2, -1) and (-2,3)
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Can some tell me what does x equal?
Answer:
x=10
Step-by-step explanation:
A straight line has an angle of 180 degrees. To solve for x we can add all the given angles and set them equal to 180.
[tex]180= 5x-1+9x+8+2x+13[/tex]
Then combine all the common factors
[tex]180=16x+20[/tex]
And then you can solve for x
[tex]180= 16x+20\\160=16x\\10=x[/tex]
To check if x is correct you can plug in 10 to each equation. If all the equations add up to 180, then x is correct
[tex]5(10)-1= 49\\9(10)+8= 98\\2(10)+13= 33\\\\49+98+33=180[/tex]
2. What is an algebraic expression for the word phrase: 4 times the difference of a and p?
a. 4 - ap
b. 4(a-p)
c. 4ap
d. 4a -p
What is 4x(2x-3)-5(3x-4) in standard form
I NEED HELP ASAP 17 points and BRAINLIEST!!!!!!!!!!
Answer:
1st 3rd and 4th
Step-by-step explanation:
I just did that
Which equation is y = 9x2 + 9x – 1 rewritten in vertex form? y = 9 (x + one-half) squared minus thirteen-fourths y = 9 (x + one-half) squared minus 1 y = 9 (x + one-half) squared + five-fourths y = 9 (x + one-half) squared minus five-fourths
Answer:
It's A.
Step-by-step explanation:
Answer:
y = 9 (x + one-half) squared minus thirteen-fourths
Step-by-step explanation:
i hope
Find the inverse of the function y = x2 - 12.
O
y= "7-12
μ Ο Ο
O
y=+*+ 12
oy-IV-12
Oy=*+12
DONE
Answer:
[tex] x = \pm\sqrt{y + 12}[/tex]
Step-by-step explanation:
[tex]y = {x}^{2} - 12 \\ y + 12 = {x}^{2} \\ \pm\sqrt{y + 12} = x \\ x = \pm\sqrt{y + 12} \\ is \: the \: required \: inverse \: function[/tex]
The inverse of the function is given by y = ± √( x² - 12 )
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be represented as A
Now , the value of A is
y = x² - 12 be equation (1)
On simplifying , we get
To calculate the inverse of the function ,
Interchange the value of x with y , we get
x = y² - 12
On solving for y , we get
y² = x + 12
Taking square roots on both sides , we get
y = ± √( x² - 12 )
Hence , the inverse of the function is y = ± √( x² - 12 )
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Traveling at an average speed of 50 miles per hour, the trip from point A to point B takes 2 hours. Traveling at an
average speed of 40 miles per hour, the same trip takes 2.5 hours.
If time, y, varies inversely with speed, x, how long will the trip take traveling at 45 miles per hour? Round your
answer to the nearest hundredth, if necessary.
O 2.22
O 2.25
4.44
4.50
Answer:
option A is the correct answer.
Step-by-step explanation:
Answer:
the answer is A
Step-by-step explanation:
i took a test and that was right
Select the points you need to calculate the average rate of change from the beginning of the
slide to when the slide has covered a horizontal
distance of 15 feet.
(0,80)
(5, 40)
(10,20)
(15, 10)
Answer:
A) (0,80)
and
B) (15,10)
The average rate of change is -14/3
Step-by-step explanation:
egen2020
Givenh (x) = x2 – 4whatish (6)?
Answer:
h(6) = 32
Step-by-step explanation:
h (x) = x^2 – 4
h(6) =
Let x = 6
h (6) = 6^2 – 4
= 36 -4
= 32
Points A, P and B are collinear such that P sits on line segment AB and partitions the segment so that AP to PB is in the ratio 2:3. Point A is located at (3,-1) and B is located at (8,14). Find the coordinates of P, the partition point.
Answer:
P = (5, 5)
Step-by-step explanation:
For the given division, ...
P = (2B +3A)/5
P = (2(8, 14) +3(3, -1))/5 = (16+9, 28-3)/5 = (25, 25)/5
P = (5, 5)
_____
For some division ratio of AP : PB = p : q, we have ...
(P -A)/(B -P) = p/q
q(P -A) = p(B -P)
P(p+q) = pB +qA . . . . rearranging
P = (pB +qA)/(p+q) . . . . . the formula we used above
I need to know what x equal? some1 help
Step-by-step explanation:
Angles DE and AB are alternate angles, they have the same angle values :)
Here is the equation: (6x-12)+(7x+1)= 10x+25
Solve:
13x-11=10x+25
3x=36
x=12
Hope this helps :)
Answer:
the answer is going to be x=12
