Answer:
Infintely many solutions
Step-by-step explanation:
I'm going to assume that the capital y is equal to the lowerase y
if you subtract y and two from both sides in the second equation you get
-y=2x-2
you then divide by -1 to get it into a normal form
y= -2x+2
this is the same as the first equation, these lines are the same
If f(x)= -2x+3 , find f(-1)?
Before we solve the equation let's take a look at it.
f(x) = -2x + 3
See how x appears in both f(x) and as the variable in the second half of the equation?
f(x) means "The function of x." You might also see g(x), h(x), and while those are the most common it can really be any letter, and any variable inside the parentheses.
So when we see f(-1), that means "The function of -1" or "The function of x when it is equal to -1."
Catching on? We need to replace x with -1 to solve for f(-1).
So here we go:
f(x) = -2x + 3
f(-1) = -2(-1) + 3
f(-1) = 2 + 3
f(-1) = 5
Voilà! We have solved for f(-1). Hope this helped.
help me plz will mark brainliest
Answer:
a) pentagon
b) concave
c) not regular
Step-by-step explanation:
a) this polygon has 5 sides, known as a pentagon
b) it is concave because you can connect the top two vertices with a diagonal which will be outside the shape
c) a regular polygon is equilateral (all sides equal) but the markings show that is not the case with this shape
BRAINLIEST TO THE CORRECT ANSWER
Answer:
Both of the angles are 45°.
Step-by-step explanation:
Because the both have the mark that proves their congruency, and there is a right angle, the need for the entire triangle to be 180° would be to add another 90°. 90/2=45, so both of those angles are 45°.
Winner-brainliest
Tell me the answer in rows
Pasta 1.
2 and so on
Answer:
Pizza 5 4 9
Pasta 1 5 6
Salad 3 2 5
Total 9 11 20
Diego scored 426 points by collecting 6 coins. After collecting a total
of 12 coins, how many points will Diego have scored in all? Assume
the relationship is directly proportional. Write the proportion, then
solve.
Answer:
cutequotes16
Step-by-step explanation:
go follow them they are awsome
Answer:
1278
Step-by-step explanation:it's easy.
Darrell earns $75 per week walking dogs and cutting grass. He carns $10 more cutting grass than walking dogs. How much does Darrell
earn cutting grass?
9² • (1+4) + 7 – 3 • 4 =
Answer:
400.
Step-by-step explanation:
What's 4.2,-3/5,220%,-4'5 in greatest to least order?
Answer:
4.2,220%,-3/5,-4'5
Step-by-step explanation:
i’ll give brainlest!
Answer:
Z = 3
Step-by-step explanation:
if y = 3 then 3 x 2 = 6 subtract that from 9 and u get 3 so therefore z is 3
Please help me read the attached picture
Answer:
the second one.
Step-by-step explanation:
the sum of the interior and exterior angels are 360°
In which choice is y not a linear function of x?
PLEASE HELP IM CONFUSED
I'm learning about sin, cos, and tan but I don't know how to use my calculator. My problem right now is -1.8=cos x and I need to solve for x but I don’t know what to do in my calculator.
Answer:
there is no solution for x
Step-by-step explanation:
BTW you can use math.way
Answer:
can you type out the entire equation? i'll do my best to solve it. don't screen shot the question tho because for some reason my laptop won't let me see them.
Step-by-step explanation:
complete the multiplication equation. (4) ( ) =-12
Answer:
-3
Step-by-step explanation:
If we substitute the blank in for x, it will make the problem easier.
(4)(x)=-12Divide each side by 4 to isolate x
x=-12/4Solve, negative 12 divided by four is 3. So:
x=-3Solve.
log 3 + log x - log(x + 1) = log 2
Please please help
Answer:
x = 2
Step-by-step explanation:
Given the equation as;
log 3 + log x - log(x + 1) = log 2
collect like terms
log x - log(x + 1) = log 2-1og 3
Re-write the equation by applying laws of logarithms in that when you subtract logs you divide the numbers/terms. This will give
log [ x / x+1 ] = log [2/3]
Cancel log on both sides to remain with;
x/ x+1 = 2/3
Apply cross-product
3{x} = 2{x+1}
3x = 2x + 2
3x-2x = 2
x = 2
Twice the difference of a number and 2 is added to 6 and the result is 4 more than 3 times the number.
Answer:
Please check the explanation.
Step-by-step explanation:
Given the statement:
''Twice the difference of a number and 2 is added to 6 and the result is 4 more than 3 times the number''.
Let us break down the statement into an algebraic expression.
First Portion:
Let the number be: n
The difference of a number n and 2: n -2
Twice the difference of a number n and 2: 2(n-2)
Twice the difference of a number and 2 is added to 6 = 2(n-2) + 6
Second Portion:
3 times the number n: 3n
4 more than 3 times the number: 3n + 4
Combine the First portion and Second Portion:
Twice the difference of a number and 2 is added to 6 and the result is 4 more than 3 times the number:
2(n - 2) + 6 = 3n + 4
Therefore, the required algebraic expression is:
2(n - 2) + 6 = 3n + 4BONUS SOLUTION to determine the number n
Let us solve the expression
2(n - 2) + 6 = 3n + 4
2n - 4 + 6 = 3n + 4
flip the equation
3n + 4 = 2n - 4 + 6
3n + 4 = 2n + 2
3n - 2n = 2 - 4
n = -2
Thus, the value of n = -2
can someone explain this to me? PLEASE HELP FAST!!
Answer:
49.298
Step-by-step explanation:
Radio × π²
5×3.14²
5×9.8596
49.298
How many mathematicians discovered the Law of Sines?
If two sides and a angle are given, then this can be used to find a second angle. With being given the measurements of two sides and an angle, this could result in one or two triangles. Johannes von Muller was the one who was discovered the Law of Sines
-8 = n/7 can someone solve this w work pleath
Answer: n = -56
Step-by-step explanation:
first, we multiply both sides by 7, un order to get the variable by itself. this is the important step.
-56 = n
then, we just simply swap the sides in order to get the variable on the left. (not necessary, just looks like a proper equation that way.)
n = -56
work:
-8 = n/7
x7 x7
-56 = n
n = -56
A machine can make 14,400 screws in 8 hours. A second machine can make twice as many screws. What is the constant of proportionality (k) between the number of screws (y) and the number of hours (x) for the second machine?
Answer:
1800 screws per hour
Step-by-step explanation:
A person going to a party was asked to bring 5 different bags of chips. Going to the store, she finds 11 varieties.
How many different selections can she make?
Answer:
as an instinct i thought that i should multiply 11 and 5, so im saying 55 different selections
Step-by-step explanation:
sorry if im wrong
NEED HELPP CORRECTT ANSWERS AND WILL GIVE THANKS AND MARK BRAINLIST ONLY FOR CORRECT ANSWER
Answer:
(16,60)
Step-by-step explanation:
14.4 A Book and a Cake A book costs $45. Sales tax on the book is 7%. Write two different expressions that represent the final cost of the book in dollars. Pne of the expressions should use only a single multiplication and no other operations.
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars
(0.85). 32 represents the final price of the cake in dollars because...
Answer: 1. $45*1.07 | $45(1.07) 2. (0.85)*32 represent the final price of the cake in dollars because (0.85) is the 15% off in decimals.
Step-by-step explanation:
1 if you multiply 45 by 1.07 it will be 48.15 and that's the final cost of the book, same with $45(1.07) is just another way to represent the multiplication.
2 As I said the 0.85 represent the 15% off, and when you multiply it will be less.
A'B'C', which statements must be true? Select three options
Answer:
They are all true
Step-by-step explanation:
A seems right. But so does B. Infact C also seems rights so they are all correct
a bus accelerates from 2 m/s to 10 m/s in 5 seconds. What was its average acceleration?
Please Help
Answer:
I believe the answer is 4. Please correct me if I’m wrong.
Step-by-step explanation:
================================================
Work Shown:
A = old velocity = 2 m/s
B = new velocity = 10 m/s
C = change in time = 5 seconds
D = average acceleration
D = (change in velocity)/(change in time)
D = (B-A)/C
D = (10-2)/5
D = 8/5
D = 1.6 m/s^2
The acceleration 1.6 m/s^2 means that the velocity is increasing by 1.6 m/s for every second.
Consider the complex number z shown in the graph.
Adding –2i to z results in a shift
.
The resulting number is
–
i.
Answer:
Down
3
2
Step-by-step explanation: on edge trust me.
Answer:
Adding –2i to z results in a shift ✔ down . The resulting number is ✔ 3 – ✔ 2 i.
Step-by-step explanation:
just did it on edge :)
good luck
please mark me brainliest!!
Help me please don’t scam
[tex]\sqrt[47][134}[/tex]
At the rate shown in the table, how many weeks did it take to sell 700 books? [Type your answer as a number.]
Answer:
10 weeks! hope this helped! :)
Step-by-step explanation:
70 x 10 = 700
I WILL GIVE BRAINLIEST I NEED HELP IMMEDIATELY !
Answer:
i think its A i don't know for sure
Step-by-step explanation:
sorry if its wrong
Answer:
D.
Step-by-step explanation:
667 x 6 = 4,002
So it would be about 667 each payment
Help me there is brainliest insured
Answer:
33
Step-by-step explanation:
44 - 25% off is 33