Step-by-step explanation:
x-8= -3x²+4x-1
3x²+x-4x=-1+8
3x²-3x=7
3x²-3x-7=0
x²-x-3.5=0
Delta = -1²-(4)(1)(-3.5)
+1+14=15
x1=-1- sqrt(15) /2(1) =2.43
x2=-1+sqrt(15)/2(1) =-1.93
I don't think it is right but i tried my best
Line segment AB has a length of 4 units. It is translated 2 units to the right on a coordinate plane to obtain line segment A′B′. What is the length of A′B′?
Answer:
2 units.
Step-by-step explanation:
Because the line segment is simply translated, the length stays the same. It is perfectly identical to the original line segment.
Select the correct answer from each drop-down menu.
The expression
means the product of 5 and the difference of three times r minus 10. If r= 4, the value of the expression
is
Reset
Next
Answer:
The expression [tex]5(3r-10)[/tex] means the product of 5 and the difference of three times r minus 10. If r= 4, the value of the expression is [tex]10[/tex] .
Step-by-step explanation:
The product of 5 and the difference of three times r minus 10 would look like this:
[tex]5(3r-10)[/tex]
If you substitute 4 for [tex]r[/tex], you get
[tex]5[3(4)-10][/tex]
Multiply 3 and 4
[tex]5(12-10)\\[/tex]
Subtract
[tex]5(2)\\[/tex]
Multiply
[tex]10[/tex]
HELP! Evaluate the expression below for s = 4 and t = 6.
4st² – s²
Answer:
560
Step-by-step explanation:
Answer:
560
Step-by-step explanation:
substitute "s" and "t" into the equation:
4(4)(6)^2-(4)^2
when you solve this according to the order of operations, you will get 560
Marcello is tiling his kitchen floor with 45 square tiles. The tiles come in whole number side lengths of 6 to 12
inches. The function A(s) = 45s2
, where s is the side length of the tile, represents the area that Marcello can cover
with the tiles. What is the domain of this function?
Answer:
Domain: {6, 7, 8, 9, 10, 11, 12}
Step-by-step explanation:
Domain is the set of input values.
Now, we are told that s is the side length of the tile, represents the area that Marcello can cover and that the tiles come in whole number side lengths of 6 to 12.
Thus, the possible sizes are;
(6, 7, 8, 9, 10, 11, 12)
This will also be the domain
Which system of equations can be graphed to find the solution(s) to 2-9x =
<=Ž - 12
Answer:
a
Step-by-step explanation:
edge 2021
What number is one hundred less than 921
Answer:
821
Step-by-step explanation:
921 - 100 = 821
The number which is one hundred less than 921 is 821.
We have the following statement - what number is one hundred less than 921.
We have to identify the number.
If a number 'x' is 50 less than 'y', then find x.The number x can be given by the following equation -
x = 50 - y
According to the question, we have - a number which is one hundred less than 921.
Assume the number to be x. Then -
x = 921 - 100
x = 821
Hence, the number which is one hundred less than 921 is 821.
To solve more questions on Number estimation, visit the link below -
https://brainly.com/question/4771124
#SPJ2
Help!! Plz complete these two :)
PLZZZZZZ HELP ME I'M GIVING BRAINLIEST AND 14 POINTS
Which expression is equivalent to the given expression? 5x -2
A. 2-5x
b.3 – 5 + 2x
c 5x – 2x
d.2x – 2 + 3x
Answer:
D. 2x - 2 + 3x
Step-by-step explanation:
First, add 2x and 3x. Then you get 5x. Then you get the equivalent expression 5x-2.
What percent of 45 is 44?
Answer:
98%
Step-by-step explanation:
Courtney bought 12 pints of orange juice. If there are 8 pints in 1 gallon, how many gallons of orange juice did she buy?
Answer:
2/4
Step-by-step explanation:
Antonio has $350 to spend on skis. Sales tax is 6%
Answer:
Sales tax is $21 so 350+21= 371
Hope this helped :)
Step-by-step explanation:
Um....help?????????????????
Answer:
y/9x
Step-by-step explanation:
[tex]\frac{3*x*y^{5} }{27*x^{2} *y^{4} } =\frac{3*x*y*y^{4} }{3*9*x*x *y^{4} }[/tex] symplify
[tex]\frac{y }{9*x }[/tex]
$1500 at 9% for 2 years
Answer:$270
Step-by-step explanation:
I=PRT
Interest=principal times rate times time
Principal=1500
Rate=9%=0.09
Time=2
I=1500 times 0.09 times 2
I=1500 times 0.18
I=270
Interest=270
Total is 1500+270=1770 total paid
Pls I need help !!!!!
Answer:
a=8
Step-by-step explanation:
We know that the right triangle has a total angle of 90.
We already have 50 witch means 40 is missing.
The equation given is:
6a-8 but we will upgrade it by the information we have so now it’s 6a-8=40
One of the multiples of 6 is, 6x8=48
Remember that 8 will be taken off.
Solve:
48-8=40 (witch is what we where looking for)
This is further proof that a=8
I have no idea what the answer is
Each side of the square below is 20 centimeters. The area of the circle inside the square is about 314 square centimeters. A circle inside of a square. The circle touches all sides of the square. What is the probability that a point chosen at random in the square is in the shaded region? StartFraction 43 over 200 EndFraction StartFraction 43 over 157 EndFraction StartFraction 157 over 200 EndFraction StartFraction 200 over 157 EndFraction
Answer:
157/200
Step-by-step explanation:
The circle is big and The other sides are small.
A: that would be the sides...
B: It should be 200 not 157...
C: It is enough for the square, so it is this one...
D: Now that is a definite no because the whole thing would be shaded.
Answer:
c
Step-by-step explanation:
What is 12-3x=-6x
Show the work please
Answer:
x=-3
Step-by-step explanation:
12-3x=-6x
12=-3x-6x
12= -9x
----------
-9. -9
12/9= -3
21. Find x, given AD = BC =6 m.
Answer:
Draw a perpendicular line from point A to line segment BC. Name the intersection of said line at BC “E.” You now have a right angled triangle AED.
Now, you know AD = 6 m. Next, given that the trapezoid is a normal one, you know that the midpoints of AB and DC coincide. Therefore, you can find the length of DE like so, DE = (20–14)/2 = 3 m.
Next, we will use the cosign trigonometric function. We know, cos() = adjacent / hypotenuse. Hence, cosx = 3/6 = 1/2. Looking it up on a trigonometric table we know, cos(60 degrees) = 1/2. Therefore, x = 60 degrees.
Alternatively, you could simply use the Theorem for normal trapezoids that states that the base angles will be 60 degrees. Hope this helps!
PLEASE HELP! I'm struggling on questions like this one. If you can please help on other questions but that's up to you! I will give brainliest I'm trying to get caught up on work. Here's a graph of a linear function. Write the equations that describes that function.
Answer:
y=3/2x+3
Step-by-step explanation:
the line hits the y-axis at 3 so b=3 and the change in y is up 3 and the change in x is to the right 2 so the change in y over the change in x is 3/2
PLEASE HELP MEEEEEE i'll be your best friendddd ;-;
The resale value of a textbook decreases by 25% with each previous owner. A new textbook is sold for $85. Which function represents the resale value of the textbook after x owners?
A: f(x) = 85(1 – 0.25)x
B: f(x) = 85(1 + 0.25)x
C: f(x) = 85(0.25)x
D: f(x) = (85 – 0.25)x
Answer:
A) f(x)=85(1-0.25)x
is the correct option
Answer:
Answer is A. f(x) = 85(1 – 0.25)x
Explanation:
ZEEEEEEEEEUUUUUUUUUUUUUUMMM
Select all the fractions that are greater than 1/2.
3/5
7/13
7/15
10/7
100/200
1000/2001
Answer:
3/5
7/13
10/7
Step-by-step explanation:
all of these are greater than 1/2
5. Mrs. Brown orders 800 grams of peaches, 200 grams of plums, and
1 kilogram of oranges. How many kilograms of fruit does Mrs. Brown order
answer
Answer:
I ain't never seen 2 pretty bestfriends
Step-by-step explanation:
Find the interest on the loan if you borrowed $5000 at 5% interest for 1 year
Answer:
$28.50
Step-by-step explanation:
f(x) = 2x² + x – 4
Find f(-10)
NEED IT FAST
Answer:
[tex]f(-10)=186[/tex]
Step-by-step explanation:
We can use substitution to find the value of [tex]f(-10)[/tex].
[tex]f(x) = 2x^2+x-4[/tex]
[tex]f(-10) = 2(-10)^2-10-4[/tex]
[tex]=200-10-4[/tex]
[tex]=186[/tex]
∴ [tex]f(-10) =186[/tex]
Hope this helps :)
Answer:
The value of f(-10) is equal to 186.
Step-by-step explanation:
We are given the function:
[tex]f(x) = 2x^2 + x - 4[/tex]
We are told to find the value of:
[tex]f(-10)[/tex]
If we pay close attention, we can see a transition between:
[tex]f(x) \rightarrow f(-10)[/tex]
We have turned x into -10, making x = -10.
Therefore, we can change the value of x in the entire function to -10.
[tex]f(-10)=2(-10)^2+(-10) - 4\\\\f(-10) = 200 - 10 - 4\\\\f(-10) = 186[/tex]
Therefore, f(-10) = 186.
At a local market, cost of apples is directly proportional to the weight of the apples. Carlos bought 10 pounds of apples for $15. If you graph the weight of apples on the x-axis and the cost of apples on the y-axis, what is the slope of the line that represents this relationship?
Answer:
they cost the same
Step-by-step explanation:
please help quicly im on a time limit
Answer:
-4
Step-by-step explanation:
Help me!!!! answer The question Please!!
Choose the best description for the real number square root of 35.
Irrational, because it is not a terminating or repeating decimal
Irrational, because it is a repeating decimal
Rational, because it is not a terminating or repeating decimal
Rational, because it is a repeating decimal
Answer: Irrational, because it is not a terminating or repeating decimal .
Step-by-step explanation: The square root of 35 is 5.916079 and more numbers that go on and on.
P.D. Hope this helps!
What is 2+2? I NEED HELP ASAP!
Answer:
4
Step-by-step
dam its so simple it hurts my brain
Please please help me please please :( asap
Answer:
You would need 32 cups of flour.
Step-by-step explanation:
If every 2 teaspoons of salt calls for 4 cups of flour, and there are 16 teaspoons of salt, we can divide 16 by the unit rate (2) and get 8; we then multiply 8 by 4 to reach 32.
Hope this helps!
Answer:
32
Step-by-step explanation:
16/2 = 8
8x4 = 32
What is the value of y?
Answer:
what is the bottom one
you can do
72+y + the bottom= 180
(sum of all angles of triangle is 180)
