Answer:
We need the options
Step-by-step explanation:
...
Which of the following is correctly written in Standard Form?
A.) -6x + 3y = 8
B.) y = 6/5x + 4
C.) 6x - 2y = 4
D.) 6/5x + 3y = 8
HELP NEEDED PLZ
-5x + 13 = -17 two step equation
Answer:
X = 6 see below
Step-by-step explanation:
-5x + 13 = - 17
Step One:
subtract 13 from each side
-5x = - 30
Step two:
divide each side by - 5
x = 6
In how many ways can a committee
of 5 men and 3 women be selected
from 9 men and 7 women ?
Answer：
use the same method
Step-by-step explanation:
Men=5
Women=3
Available Strength:
Men=7
Women=6
Objective:Finding no of such committees where particular 2 women are never together.
So initially ,Total possible number of commitee=7c5×6c3=420.
Now we need to find total committes where two particular women say(Sita and Gita ) are never together.
Approach—->
As the commitee requires 5 men and 3 women.
Let us first find number of committees where Sita and Gita are always together.
Hence we reserve 2 women seats for them.
Now we need one women out of remaining 4 women.
So possible number of such commitees 7c5×4c1.
=84.
Hence number of committees where Sita and Gita are never together
=420–84
=336.
Find the binomial expression of
(x-5) (×-5)
Answer:
x^2-10x+25
Step-by-step explanation:
(a+b)^2=a^2+2ab+b^2 so a=x and b=-5 so the expression is x^2-10x+25
Answer:
x^2-10x+25
Step-by-step explanation:
Distribute
(x-5)(x-5)
x(x-5)-5(x-5)
Distribute again
x(x-5)-5(x-5)
x^2-5x-5(x-5)
Distribute one last time
x^2-5x-5(x-5)
x^2-5x-5x+25
combine like terms
x^2-5x-5x+25
x^2-10x+25
For the simple linear equation below, what is the y-coordinate of the ordered pair when the x-coordinate is −5?
y=−7x
Enter your answer in the box.
(-5, ) what goes after 5
Answer:
-9
Step-by-step explanation:
C = 5/9 × (F – 32)
122°F = °C
Answer:
In Celsius the degree is 50°
Step-by-step explanation:
Put the 122° into the equation given.
50 POINTS! PLEASE HELP! Which graph represents the solution set of the system of inequalities?
{y≤2x+1 y>−2x−3
Step-by-step explanation:
the second one as the -2x-3 is only on the second one
Using the slope of the lines, determine if the lines are PARALLEL, PERPENDICULAR OR
NEITHER
y = 4x - 5
-x + 4y = -8
O Parallel
O Perpendicular
O Neither
10 pts
Step-by-step explanation:
let the first equation be l1 and the second equation be l2
then the product of L1.L2=1 the line is perpendicular and l1=l2 the line is parallel
what is the domain of the fraction
The domain is the set of all x-values in that table:
{ -6, -1, 0, 3}
or
{ x | x = -6, -1, 0, 3 }
Solve for x. 8x-6+11+12x=180
Answer:
x=35/4
Step-by-step explanation:
20x +5=180
20x=180-5
20x=175
x=175/20=35/4
Answer:
[tex]x=8.75[/tex]
Step-by-step explanation:
[tex]8x-6+11+12x=180~(Given)\\\\20x+5=180~(Simplify)\\\\20x+5-5=180-5~(Subtract~5~on~both~sides)\\\\20x=175~(Simplify)\\\\\frac{20x}{20}=\frac{175}{20}~(Divide~20~on~both~sides)\\\\x=8.75[/tex]
Solve for x:
10 = x+25
Answer:
[tex]\boxed{\sf x=-15}[/tex]
Step-by-step explanation:
[tex]\sf 10=x+25[/tex]
[tex]\sf x+25=10[/tex]
[tex]\boxed{\mathrm{Subtract\:}25\mathrm{\:from\:both\:sides}}[/tex]
[tex]\sf x+25-25=10-25[/tex][tex]\sf x=-15[/tex]Answer:
x = -15
Step-by-step explanation:
Arrange the following in descending order: 1/5,3/7,7/10
Answer:
7/10 - 3/7 - 1/5
Step-by-step explanation:
3/7-7/10-1/5
Step-by-step explanation:
how to use intersection in the real world.
6.
What is the midpoint of the line segment whose
endpoints (7,-4) and (-3, -2)?
are
Answer: (2, -3)
Step-by-step explanation:
To find the the answer, you will need to use the midpoint formula, which is as following:
(x₁+x₂/2, y₁+y₂/2)
Since we have two coordinates, let's substitute them into the equation.
(7 + (-3 )/ 2, (-4) + (-2)/2)
We should first add 7 and -3 together, as well as -4 and -2.
(4/2, -6/2)
We then divide 4 and -6 by 2. This would give us our midpoint coordinate.
(2, -3)
Bill baked n cookies. His friends ate 12 of them. Using n, write an expression for the number of cookies that remained.
Answer:
n-12= number of cookies left
Answer:
y=n-12
Step-by-step explanation:
y= how many cookies are left
n = number of cookies
-12 = how many his friends ate
What is the answer to this question?
I am confused.
Answer:
y=88 x=42
Step-by-step explanation:
Since the total measurments of one triangle have to equal 180 and one angle is already 50, and the angle on the oppisite side of the y angle is 90 the only logical number for y would be 88. Hope this helped :)
What time is three hours and 30 minutes after 6:30 am
The answer is 10:00 am
add 3 to 6 then add the 30 minutes to the 30 minutes which equals another hour
What is 4 times 1 6/7. Write in the simplest form
Answer:
7 43/100
Step-by-step explanation:
4*1 6/7=4 24/7 which equals 7.43, or 7 43/100
Answer:
7 3/7
Step-by-step explanation:
4 * 1 6/7
1 = 7/7, so 1 6/7 = 7/7 + 6/7 = 13/7
4 * 13/7 = 52/7
7 can fit into 52 at most 7 times (because 7*7 is 49, and less than 52)
This leaves us with 3 left over
4 * 1 6/7 = 7 3/7
u may not understand this but what is 10 g/cm³ a measure of
. is it Volume Mass or density
Your cousin’s birthday is this weekend. You want to buy a CD that costs $12.99 and a birthday card that costs $2.50. You have saved $25. Write an inequality to find the most money you have for other spending.
Answer:
None
Step-by-step explanation:
It would be easier to ask your teacher instead of getting wrong answers from random people. Ever think of that :0
Hello. . .
I need help please. . .
answers/w explanation. ✅
Nonsense answers, or answers that's not the question I ask for will be reported.
Answer:
x = 1 , y = 4
Step-by-step explanation:
I am assuming you're looking for what x and y are? If so, then we know that
DC and AB equal each other, so
4x + y = 8
CB and AD equal each other, so
2x + y = 6
We have two equations that cannot be solved on their own, so we must solve them as a system of equations. One process to solve is elimination.
4x + y = 8
2x + y = 6
we can multiply the second equation all by -1 to make the y's cancel out and give us x. so,
4x + y = 8
-1(2x + y) = 6
4x + y = 8
-2x -y = -6
now solve them vertically. we get:
2x = 2
and so x = 1.
Now that we found x, we must find y. Using any of the two equations froom above, we can substitue our x value of 1 into it to find y. I will use the first one.
4x + y = 8
4(1) + y = 8
4 + y = 8
y = 8 - 4
y = 4
so our x is 1 and y is 4.
hope this helps! (:
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Answer:
YASSSSSSSS
Step-by-step explanation:
Answer:
dnbdjdndh hdhdhbdjf
xnxnxnnxnxnfnf
ndndndndjf
if 3^x = 1, find the value of x.
3x-1=?
maybe 3x-1=5
3x=5+1
3x=6
X=6/3
X=2
Find the equation of the line that passes through (-1,2) and is perpendicular to
y
=
1
−
2
x
.
Leave your answer in the form
y
=
m
x
+
c
Answer:
Remember that the slope of perpendicular lines are negative reciprocals of each other.
Step-by-step explanation:
y = 1 - 2x the slope is -2 the value of the x term.
So the slope of the new line using point (- 1, 2) is 1/2.
Now use y = mx + b where y = -1, x = 2, and m = 1/2 .
y = mx + b
-1 = 1/2(2) + b solve for "b", the y-intersect
-1 = 1 + b
-2 = b
The line that is perpendicular to y = 1 - 2x is y = 1/2x - 2
Solve the inequality- 5/2(3x+4)<6-3x. Show your work.
Answer:
x < -8/21
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
[tex](\frac{5}{2} * 3x) + (\frac{5}{2} * 4) < -3x + 6[/tex] [tex]\frac{15}{2}x + 10 < -3x + 6[/tex]Step 2: Add 3x to both sides.
[tex]\frac{15}{2}x + 10 + 3x < -3x + 6 + 3x[/tex] [tex]\frac{21}{2}x + 10 < 6[/tex]Step 3: Subtract 10 from both sides.
[tex]\frac{21}{2}x + 10 - 10 < 6 - 10[/tex] [tex]\frac{21}{2}x < -4[/tex]Step 4: Multiply both sides by 2/21.
[tex]\frac{21}{2}x * \frac{2}{21} < -4 * \frac{2}{21}[/tex] [tex]x < -\frac{8}{21}[/tex]Therefore, the answer is x < -8/21.
Factor Completely. (and please show work)
4x^2 - 8x +3
Step-by-step explanation:
=>4x²-8x+3
=> 4x²-2x-6x+3
=> 2x(2x-1)-3(2x-1)
=>(2x-1)(2x-3).
hope this helps you.
Find x and y please!! I’m desperate!!!
Answer:
x = 4
y = 2
Step-by-step explanation:
the third angle of the triangle
180 - (148 + 18) = 14º
Therefor
3x + y = 14
5x - y = 18
Add the equations
8x = 32
Divide both sides by 8
x = 4
Plug in x = 4
3(4) + y = 14
12 + y = 14
y = 2
9514 1404 393
Answer:
(x, y) = (4, 2)
Step-by-step explanation:
The triangles are similar by AA similarity, so the corresponding angles are congruent.
5x -y = 18 . . . . . . unmarked angles are congruent
18 +(3x+y) +148 = 180 . . . . . sum of angles in a triangle is 180°
__
After subtracting 166 from both sides, the second equation simplifies to ...
3x +y = 14
Adding this to the first equation gives ...
8x = 32
x = 4 . . . . . . divide by 8
Then substituting for x in the first equation gives ...
5(4) -y = 18
20 -18 = y = 2
The values of the variables are x = 4, y = 2.
_____
The angle marked with a double mark is 14°, given by the simplified second equation.
The number of protons to neutrons in the nucleus of an atom is 5 to 6.If the numbers of protons in the nucleus is 30 then find the number of neutrons
Answer:
36 neutrons
Step-by-step explanation:
The ratio of the protons to neutrons is 5:6, or 5 protons/6 neutrons. You know there are 30 protons, so this means you can set up proportions. Keeping the protons on the top, 5 protons/6 neutrons = 30 protons/x neutrons. You can cross-multiply from here, but how I find it helpful to think of it is seeing that you have to multiply 5 protons by 6 to get to 30 protons, so you'd have to also multiply the 6 neutrons by 6 to get x neutrons. Doing so (6x6) will get you 36. Don't forget your units! (:
answer to me this question
Step-by-step explanation:
[tex]3 \frac{1}{2} - 4 \frac{3}{4} = \frac{7}{2} - \frac{19}{4} = \frac{14}{4} - \frac{19}{4} = - \frac{5}{4} [/tex]
Simplify each equation. Tell whether the equation has one, no, or infinite solutions.
3x - 7 = 3(x-3)+2
A) infinite solutions
B) One
C) no solutions
Answer:
-7 = -7
a. infinite solution