Answers
Answer: E
Step-by-step explanation:
To cancel out the Y you need to have both multiplied by each other
so the first equation get multiplied by 7 and the second one by 4
28y + -28y = 0 they cancel out
Related Questions
Reasoning Explain why either a or b must be 0 if ab = 0, but neither a nor b
must be 4 when ab = 4.
Answers
Divide both sides by b:
b=0/a —> b=0
Divide both sides by b:
a=0/b —> a=0
Hmm A could be 4 and b could be 1 because 4*1=4
There are some cubes in a bag.
1/6 of the cubes are red.
The rest of the cubes are blue.
Write the ratio of the number of red cubes to the number of blue cubes.
Give
your answer in the form 1:n
Answers
Anyone want points or brainiest here is a question. What is 4-1!
:D
Answers
Answer:
it would 41 amiright?
Answer:
4-1=3
Step-by-step explanation:
hope it helps and have a great day :)
Maryanne is making roast chicken for dinner. It takes 2 1/2 hours to cook. She plans to eat dinner at 6:00pm. At what time should she put the chicken in the oven?
Answers
Answer:
3:30
Step-by-step explanation:
help with math problem
Answers
Answer:
1.No- that just means that the numbers on that side are smaller
Step-by-step explanation:
Which of the following rational functions is graphed below?
Answers
Answer:
Lets start by looking at the y and x asymptotesX=1 and x=5 Hence we need to look for (x-1) and (x-5)Hence A is your answerPeter is renting two kinds of rafts for a vacation company. One type seats 3
people and the other seats 5 people. If 53 people are using the vacation
company and he rents 13 rafts, how many of each type of raft does he rent?
Answers
Answer:
Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.
Step-by-step explanation:
Let [tex]x[/tex] denote the number of rafts seating 3 people and [tex]y[/tex] the number of rafts seating 5 people. The total number of rafts is 13, so [tex]x+y=13[/tex]. We can also assume that every raft is filled to the brim (it isn't stated explicitly though, but it's probably the intention of the question maker), so [tex]3x+5y=53[/tex].
It's always a good idea to put these equations under each other:
[tex]\left \{ {{x+y = 13} \atop {3x+5y=53}} \right.[/tex]
We can subtract the first equation three times from the second one to obtain [tex](3x+5y)-3(x+y) = 53 - 3(13)\\3x-3x + 5y - 3y = 53 - 39\\2y = 14\\y=\frac{14}{2} = 7[/tex]
Now, substitute this found value for [tex]y[/tex] into [tex]x+y = 13[/tex] and we see that [tex]x=6[/tex]. We are now done: Peter rents 6 of the rafts seating 3 people, and 7 of the rafts seating 5 people.
-16(x - 6) -4
B. x > 8
C. x < -4
D. x < 8
s t u p i d study island :') uωu`
Answers
Answer:
i think it is c but i am probably super wrong
Step-by-step explanation:
double 2, then divide b by the result
Answers
Answer:
can you give me the rest of the problem so i can solve
Step-by-step explanation:
An angle measures 160° less than the measure of its supplementary angle. What is the measure of each angle?
Answers
Answer:
The two angles are 10 degrees and 170 degrees.
Step-by-step explanation:
Supplementary angles add up to 180 degrees.
Let the angle be called "x", and the supplementary angle be called "180-x"
Converting words to math: x-160=180-x
Add x to both sides: 2x-160=180
Simplify: 2x=20
Divide by 2: x=10
Let me know if this helps!
3x + 2y = 26
y = 5x
Slove the system
Answers
Y = 10
3x + 2y = 26
Y = 5x
3x + 2(5x) = 26
3x + 10x = 26
13x = 26
X = 2
Y = 5 (2)
Y = 10
Answer = 2
Step-by-step explanation:
3x + 2(5x) = 26
3x + 10x = 26
13x = 26
26 ÷ 13 = 2
Scarlett went shopping for a new pair of sneakers because of a sale. The store was offering a 10% discount. If the price on the tag was $22, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answers
Answer:
$19.8
Step-by-step explanation:
$22*10%=$2.2
$22-$2.2=$19.8 before tax, exact dollar and cent
HELP PLZZZzzzzzzzzzzzzz
Answers
Answer:
D.
Step-by-step explanation:
i hope im right
Need Help ASAP
What is the sum of interior angles of a triangle?Degrees
Given ABC, find the value of X.
What is the measure of angle A??
Answers
2x-9+3x+x+3=180
6x-6=180
6x=186
x=31
A=2(31)-9
A=62-9
A=53
question 5. need asap please and thank you
Answers
Answer:
I believe changing -3/4 steepen the slope. For example, y=-1x+2
for each sequence find the first 4 terms and the tenth term
a) n squared +3
b) 2n squared
Answers
Answer:
Step-by-step explanation:
Given that:
a) n³
The first 4 terms are;
let assume n = 1
1³ = 1
if n = 2
2³ = 8
if n= 3
3³ = 27
if n = 4
4³ = 64
So, the sequence is 1, 8, 27, 64
The tenth term of this sequence is: 10³ = 1000
b)
2n²
if the first term is 1
then 2(1)² = 2
if n = 2
2(2)² = 8
if n = 3
2(3)² = 18
if n = 4
2(4)² = 32
So, the sequence is 1, 8, 18, 32
The tenth term will be 2(10)² = 200
Solution for 1/3p+8=11
Answers
Answer:
p = 9
Step-by-step explanation:
solve the matrix and prove that it is equal 0
Answers
Step-by-step explanation:
[tex] \underline{ \underline{ \text{Given}}} : [/tex]
[tex] \tt{ {A}^{T} = \begin{bmatrix} 2 & - 4 \\ 4 & 3 \\ \end{bmatrix}}[/tex][tex] \underline{ \underline { \text{To \: Find}}} : [/tex]
[tex] \sf{ {A}^{2} - 5A+ 22I= 0}[/tex][tex] \underline{ \underline{ \text{Solution}}} : [/tex]
The new matrix obtained from a given matrix by interchanging it's rows and columns is called the transposition of matrix. It is denoted by [tex] \sf{ {A}^{T}} [/tex]. Again , Interchange it's rows and columns in order to find ' A '.
[tex] \tt{A = \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix}}[/tex]
Now , LEFT HAND SIDE ( L.H.S )
[tex] \tt{ {A}^{2} - 5A+ 22I}[/tex]
Here, I refers to identity matrix. A diagonal matrix in which all the elements of leading diagonal are 1 ( unit ) is called unit or identity matrix.
⟼ [tex]\begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} \times \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} - 5 \times \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} + 22 \times \begin{bmatrix} 1 & 0 \\ 0 & 1\\ \end{bmatrix}[/tex]
⟼ [tex]\begin{bmatrix} 2 \times 2 + 4 \times ( - 4)& 2 \times 4 + 4 \times 3 \\ - 4 \times 2 + 3 \times ( - 4) & - 4 \times 4 + 3 \times 3 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20& 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}[/tex]
⟼ [tex]\begin{bmatrix} 4 + ( - 16) & 8 + 12 \\ - 8 + ( - 12) & - 16 + 9 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20 & 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}[/tex]
⟼ [tex] \begin{bmatrix} - 12 & 20\\ - 20& - 7 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20 & 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}[/tex]
⟼ [tex]\begin{bmatrix} - 22 & 0 \\ 0& - 22 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}[/tex]
⟼ [tex]\begin{bmatrix} - 22 + 22 & 0 + 0 \\ 0 + 0 & - 22 + 22 \\ \end{bmatrix}[/tex]
⟼ [tex]\begin{bmatrix} 0 & 0\\ 0 & 0 \\ \end{bmatrix}[/tex]
⟼ [tex] \sf{0}[/tex]
RIGHT HAND SIDE ( R.H.S ) : 0
L.H.S = R.H.S [ Hence , proved ! ]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
Step-by-step explanation:
\underline{ \underline{ \text{Given}}} :
\begin{gathered} \tt{ {A}^{T} = \begin{bmatrix} 2 & - 4 \\ 4 & 3 \\ \end{bmatrix}}\end{gathered}
\underline{ \underline { \text{To \: Find}}} :
\underline{ \underline{ \text{Solution}}} :
The new matrix obtained from a given matrix by interchanging it's rows and columns is called the transposition of matrix. It is denoted by \sf{ {A}^{T}}
. Again , Interchange it's rows and columns in order to find ' A '.
\begin{gathered} \tt{A = \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix}}\end{gathered}
Now , LEFT HAND SIDE ( L.H.S )
\tt{ {A}^{2} - 5A+ 22I}
Here, I refers to identity matrix. A diagonal matrix in which all the elements of leading diagonal are 1 ( unit ) is called unit or identity matrix.
⟼ \begin{gathered}\begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} \times \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} - 5 \times \begin{bmatrix} 2 & 4 \\ - 4 & 3 \\ \end{bmatrix} + 22 \times \begin{bmatrix} 1 & 0 \\ 0 & 1\\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered}\begin{bmatrix} 2 \times 2 + 4 \times ( - 4)& 2 \times 4 + 4 \times 3 \\ - 4 \times 2 + 3 \times ( - 4) & - 4 \times 4 + 3 \times 3 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20& 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered}\begin{bmatrix} 4 + ( - 16) & 8 + 12 \\ - 8 + ( - 12) & - 16 + 9 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20 & 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered} \begin{bmatrix} - 12 & 20\\ - 20& - 7 \\ \end{bmatrix} - \begin{bmatrix} 10 & 20 \\ - 20 & 15 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered}\begin{bmatrix} - 22 & 0 \\ 0& - 22 \\ \end{bmatrix} + \begin{bmatrix} 22 & 0 \\ 0 & 22 \\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered}\begin{bmatrix} - 22 + 22 & 0 + 0 \\ 0 + 0 & - 22 + 22 \\ \end{bmatrix}\end{gathered}
⟼ \begin{gathered}\begin{bmatrix} 0 & 0\\ 0 & 0 \\ \end{bmatrix}\end{gathered}
⟼ \sf{0}0
RIGHT HAND SIDE ( R.H.S ) : 0
WILL MARK YOU BRAINLIEST
Answers
Answer:
the second : the angles are congruent and the side lengths are proportional
A basketball player made 80 baskets in a season. Of these, 20% were three-point shots. Determine the number of three-point shots the player made?
Answers
The way to do this is by doing 100 / 20 which is 5, and then you would do the total (80) divided by 5 which is 16
what is 3x+11=5 someone please help me
Answers
Answer:
x = -2
Step-by-step explanation:
Answer:
x=−2
Step-by-step explanation:
Let's solve your equation step-by-step.
3x+11=5
Step 1: Subtract 11 from both sides.
3x+11−11=5−11
3x=−6
Step 2: Divide both sides by 3.
3x/3=−6/3
x=−2
If gas costs $4.55 per gallon how many whole gallons of gas could you buy with $12.00?
Answers
4.55•2=9.10
4.55•3=13.65
The amount of gallons of gas that can be bought with $12 is 2.64 gallons.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
Cost of gas per gallon = $4.55
This can be written as,
1 gallon = 4.55
Multiply 12/4.55 on both sides.
12/4.55 gallons = 12/4.55 x 4.55
2.64 gallons = 12
This means,
2.64 gallons for $12.
Thus,
2.64 gallons can be bought for $12.
Learn more about unit rates here:
https://brainly.com/question/11258929
#SPJ2
Someone please help me with this I REALLY NEED HELP ILL GIVE U BRAINLY IF U GET IT RIGHT
Answers
Answer:
A
Step-by-step explanation:
Sheri sells 10 tickets every two hours
We plug two hours into Tim's equation --> t=5(2)
t=10
So, in two hours, Tim sells 10 tickets
Which expression is equivalent to (x2 – 2x)(3x2 + 4x - 7)?
Answers
Answer:
You have it right, its A
Answer:
Step-by-step explanation:
it A
1. How much is the Nintendo 3DS worth after 2 years? Round your answer to 2
decimal places. Make sure to show your work or explain what you did to get your answer.
2. What does the 200 tell us about the situation?
3. What does the tell us about the situation?
Edit View
Insert
Format Tools
Table
12
Paragraph
B 4 Teu :
Answers
PLEASE HELP ASAP
Which expression is not equal to 1?
A} sin θ csc θ
B} cos θ sec θ
C] tan θ cot θ
D} sin θ cos θ
Answers
Answer:
D} sin theta cos theta
Step-by-step explanation:
Edge
Answer:
D
Step-by-step explanation:
Edge2021
Tom, Jaime and LaDonna are playing hide-and-seek. Tom is hiding 15 yards south of Jaime, and LaDonna is hiding due west of Tom. If Jaime is 25 yards from LaDonna, how far apart are Tom and LaDonna.
Answers
Answer:
what are the answer choices
Step-by-step explanation:
Answer:
That's like 20 feet probably
Step-by-step explanation:
Okay so the distance between Tom and Jaime is the height of the triangle (South is directly down) (A=15 yards)
The distance between Tom and Ladonna is the base of the triangle (since Ladonna is west of Tom) (B is unknown)
The hypotenuse is the distance between Jaime and LaDonna (C=25 yards)
1. So 15^2 plus b^2 equals 25^2
2. 225 plus b^2 equals 625
3. Subtract 225 from both sides (b^2=400)
4. Find the square root of both sides.
5. B= 20 yards
Prove: segment SD = segment PD
I think the answer is between C and D, which is the right one showing the triangle is ASA??
Answers
Answer:
C
Step-by-step explanation:
SD is congruent to PD and both triangles share the same side with each other.
Ykdgkdkdggdkgkdkgdkgdkyf
Answers
Answer:
f ^− 1 ( x )=√2(x+7)/2,x≥-7
Step-by-step explanation:
Find the inverse.
Let f be the function defined by f(x)=x^3+x^2+x. Let g(x)=f^-1(x), where g(3)=1. What is the value of g'(3)?
Answers
Answer:
1/6
Step-by-step explanation:
Given the function
f(x)=x^3+x^2+x
Get the inverse. Let y = f(x)
y = x^3+x^2+x
Replace y with x
x = y³+y²+y
Differentiate with respect to x
1 =3y²dy/dx + 2ydy/dx + dy/dx
1 = (3y²+2y+1)dy/dx
dy/dx = 1/3y²+2y+1
g'(x) = 1/3(g(x))²+2g(x)+1
If x = 3
g'(3) = 1/3(g(3))²+2g(3)+1
g'(3) =1/3(1)²+2(1)+1
g'(3) = 1/3+2+1
g'(3) = 1/6
Hence g'(3) = 1/6