Answers
Answer:
B
Step-by-step explanation:
x^2=3x-2(subtract 3x and add 2) x^2-3x+2=0(group) (x-1)(x-2)=0(find x) x=1;x=2
find y values for x values and check:
1^2=1, pair 1:(1,1); 3(1)-2=3-2=1, same pair
2^2=4, pair 2:(2,4); 3(2)-2=6-2=4, same pair
pairs: (1,1);(2,4)
Related Questions
what is equivalent to 2 5/9
Answers
Answer:
2.555555 ....
Step-by-step explanation:
2 5/9 is a mixed number.
Use your calculator to divide 9 into 5, to find the value of 5/9. Then add 2 to the result:
5/9 = 0.5555555 (repeating fraction)
Adding 2, we get:
2.555555 .... (repeating fraction)
Graph a line that contains the point (6,-5)
Answers
Answer:
y=-5
Step-by-step explanation:
It must contain (6, -5). Therefore, I went the easy way and created a line that has y = -5 no matter what x is. You can put 0x-5 if you want to make sure the independent variable is x.
3x + 6y =3 x - y = -7 Does the system have: no solutions, infinite solutions, or one solution?
Answers
Answer:
Step-by-step explanation:
3x + 6y = 3
x - y = -7
3x + 6y = 3
-3x - 3y = 21
3y = 24
y = 8
x - 8 = -7
x = 1
(1, 8)
answer is one solution
If f(x) = 2x -1, what does f(10) equal?
-1
16
19
33
Asap pls
Answers
Step-by-step explanation:
f(x) = 2x - 1
f(10) = 2(10) - 1
= 20 - 1 = 19
U is the midpoint of TV. If TU = x - 6 and TV = 3x – 23, what is TU?
Answers
Answer:
TU = 5
Step-by-step explanation:
Since, U is the midpoint of TV.
[tex]\therefore TV = 2 \times TU \\ 3x - 23 = 2(x - 6) \\ 3x - 23 = 2x - 12 \\ 3x - 2x = 23 - 12 \\ x = 11 \\ \\ TU = x - 6 \\ TU = 11 - 6 \\ \huge \red { \boxed{TU = 5}}[/tex]
How many protons would make up 9.435 x 10-22 g?
Answers
Answer:
Mass of proton (m) = 1.67×10^(-27) kg
Step-by-step explanation:
Mass of proton (m) = 1.67×10^(-27) kg.
Since, 1 kg = 1000 g
Therefore, m = 1.67x10^(-27+3) g = 1.67x10^(-24) g
Let N no. of protons be present in 1 g. Hence, Nxm = 1 g
So, N = 1 / m = 1 / (1.67x10^(-24))
N = 6x10^(23) (approx.)
Exact mass of proton gives N = 6.022 x 10^(23).
That is a very special no. In fact, it is the Avogadro’s constant used frequently in chemistry. Avogadro’s no. is actually the number of atoms in exactly 12 g of C-12 isotope of carbon. Since, the atomic mass of C-12 is 12 u (unified mass), then again the no. of carbon atoms turn out to be N.
An angle measures 107.8° less than the measure of its supplementary angle. What is the measure of each angle?
Answers
Answer:
x=36.1
supplementary angle = 143.9 degrees
Step-by-step explanation:
angle: x
supplementary angle: 180-x
x = (180-x)-107.8
2x = 72.2
x = 36.1 degrees
180-x = 143.9 degrees
supplementary angle = 143.9 degrees
x measures 107.8 less than 180-x
x=180-x-107.8
x=72.2-x
Add x to both sides
2x=72.2
Divide both sides by 2
x=36.1
_________________________________
hope this helps, I just solved this so probably should get it fact checked.
Consider the steps to solve the equation. 2 5 ( 1 2 y + 20 ) − 4 5 = 9 20 (2y − 1) Distribute: 1 5 y + 8 − 4 5 = 9 10 y − 9 20 What is the next step after using the distributive property? Use the multiplication property of equality to isolate the variable term on one side of the equation. Use the multiplication property of equality to isolate the constant on one side of the equation. Combine the like terms on the right side of the equation. Combine the like terms on the left side of the equation.
Answers
Answer: D
Step-by-step explanation:
<3
Answer:
The correct answer is d. Combine the like terms on the left side of the equation.
Explain what the intercepts mean in terms of the context and how to find them.
Answers
Answer:
Intercepts in terms of graphing are considered to be points at which a function crosses an axis. In the standard x and y graph (the Cartesian coordinate grid), one would find the intercepts by simply plugging in the value of 0 for either the x or the y to find either the y or x intercept respectively. For example, to find the y-intercept, you want to find (0,y) and to find the x-intercept, you want to find (x,0).
Cheers.
Rewrite the expression by factoring out −x4. +5x2−x42−x4
Answers
Answer:
783735e826w826
Step-by-step explanation:
1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1+1
Simplify:
6(1 + 6x) <6(1 - 5x)
Answers
Answer:
x < 0
Step-by-step explanation:
The domain of the function y=3x+1 is 1, 2, 3, 4. What is the range?
Answers
Answer:
4, 7, 10, 13
Step-by-step explanation:
Step 1:
3 ( 1 ) + 1 = 4
Step 2:
3 ( 2 ) + 1 = 7
Step 3:
3 ( 3 ) + 1 = 10
Step 4:
3 ( 4 ) + 1 = 13
Answer:
4, 7, 10, 13
Hope This Helps :)
Tell whether the given angles are vertical angles, a linear pair, or neither.
Answers
The given angles are a linear pair
The size of the largest angle in a triangle is 3 times the size of the smallest angle.
The other angle is 35 more than the smallest angle.
Work out in degrees the size of each angle in the trianlge
You must show your working
Answers
Answer:
a = 29
b = 64
c = 87
Step-by-step explanation:
Let the angles be a (smallest), b, and c (largest).
We know that a triangle's angles must add up to 180 degrees, so we can construct the following equations.
a + b + c = 180
c = 3a
b = a +35
With some solving and substitution...
a + (a + 35) + c = 180
2a + c = 145
2a + (3a) = 145
5a = 145
a = 29
and therefore,
b = 29 + 35 = 64
c = 3(29) = 87
Answer:
Let smallest angle be :x
So, the largest angle will be:3x
And the other angle will be :x+35
According to angle sum property of triangle,
x+3x+x+35=180
5x+35=180
5x=180-35
5x=145
x=(145/5)
Therefore, x=29
So, the smallest angle =x=29
The largest angle=3x=87
And the other angle=x+35=64
express the following number in standard form a question 425000
Answers
A donut shop made 12 dozen donuts to give to a school’s math club.
Which expression represents how many donuts each student would get if the donuts were equally distributed and there were x
x
students in math club’s
Answers
Answer:
Number of donuts each student get = 144 / x
Step-by-step explanation:
Given:
Number of donuts = 12 dozen
Number of students = x
Find:
How many donuts each student get
Computation:
Total number of donuts = 12 × 12 = 144
Number of donuts each student get = Total number of donuts / Number of students
Number of donuts each student get = 144 / x
A gold mine has two elevators, one for equipment and another for the miners. The equipment elevator descends 6 feet per second. The elevator for the miners descends 16 feet per second. One day, the equipment elevator begins to descend. After 28 seconds, the elevator for the miners begins to descend. What is the position of each elevator relative to the surface after another 14 seconds? At that time, which elevator is deeper?
Answers
Answer:
equipment: -252 feet; miners: -224 feetequipment is deeperStep-by-step explanation:
The attached graph shows the depth of the elevators with respect to the time the miners' elevator started.
After 14 more seconds, the positions are ...
equipment: -6(42) = -252 feet relative to the surface
miners: -16(14) = -224 feet relative to the surface
The equipment elevator is deeper.
please help me with this
Answers
Answer: the answer is x^2=10
Step-by-step explanation:
5-2x^2=-15
step one {subtract 5 from both sides} {example- 5-2x^2-5=15-5step two {simplify} {example- -2x^2=-20step three {divide both sides by -2} {example- -2x^2 = -20{{disclaimer this is part of step three}} -2 -2 step four {simplify} {example- x^2=10
Which set of numbers is included in the solution set of 8 - 5x > 23
Answers
Answer:5
Step-by-step explanation: because i had this question before
Help quick please you don’t have to show work
Answers
Answer:
2nd
Step-by-step explanation:
Answer:
B. Between Step 1 and Step 2, combining like terms is used.
A triangle with the coordinates X(3, 2), Y(5, -1), and Z(-2, 3) is reflected across both the x- and y-axes. The coordinates after both reflections are what
Answers
Answer:
The coordinates of the reflected triangle are [tex]X'(x,y) = (-3,-2)[/tex], [tex]Y' (x,y) = (-5,1)[/tex] and [tex]Z'(x,y) = (2,-3)[/tex].
Step-by-step explanation:
Let be a point [tex](a,b)\in\mathbb{R}^{2}[/tex], reflections across x- and y-axes are represented by the following operations:
x-Axis reflection:
[tex]d = d'[/tex]
[tex]b - 0 = 0 - b'[/tex]
[tex]b' = -b[/tex]
y-Axis reflection:
[tex]d = d'[/tex]
[tex]a - 0 = 0 - a'[/tex]
[tex]a' = -a[/tex]
If we know that [tex]X (x,y) = (3,2)[/tex], [tex]Y(x,y) = (5,-1)[/tex] and [tex]Z (x,y) = (-2, 3)[/tex], the coordinates after both reflections are, respectively:
[tex]X'(x,y) = (-3,-2)[/tex]
[tex]Y' (x,y) = (-5,1)[/tex]
[tex]Z'(x,y) = (2,-3)[/tex]
The coordinates of the reflected triangle are [tex]X'(x,y) = (-3,-2)[/tex], [tex]Y' (x,y) = (-5,1)[/tex] and [tex]Z'(x,y) = (2,-3)[/tex].
Solve |y-2|<10
please
Answers
Y=(-8, 12)
Wouldnt the answer be anything above 12? Because if Y is unknown, and you're taking 2 away from it, and it still has to be greater than 10, then it should be anything above 12. Unless it's saying that the number is greater than 10, and you are just taking away 2 from a number and it doesn't have to be greater than 10.
Will switching points when calculating distance affect the final answer? Explain. (1 point)
Switching points when calculating distance will affect the final answer because the formula adds the differences of the corresponding X-
and y-values
Switching points when calculating distance will not affect the final answer because the formula adds the differences of the
corresponding X- and y-values.
Switching points when calculating distance will affect the final answer because the formula finds the differences of the corresponding x-
and y-values
Switching points when calculating distance will not affect the final answer because the formula squares the differences of the
corresponding X- and y-values.
Answers
Answer:b
Step-by-step explanation:
The table shows the distance that two trains are from Center Station at various times of the day.
Miles From Center Station
Time of day
Train 1
Train 2
11:30
13
7
12:00
31
27
12:45
58
57
How do the speeds of the trains compare?
Train 1 is traveling 1 mile per hour faster than train 2.
Train 1 is traveling 6 miles per hour faster than train 2.
Train 2 is traveling 4 miles per hour faster than train 1.
Train 2 is traveling 5 miles per hour faster than train 1.
Answers
Answer: Train 2 is traveling 4 miles per hour faster than train 1.
Step-by-step explanation:
Answer:
Train 2 is traveling 4 miles per hour faster than train 1.
Step-by-step explanation
:)))))
Factoring Completely:
x^2-16x+48
Answers
Answer:
(x - 12)(x - 4)
Step-by-step explanation:
Given
x² - 16x + 48
Consider the factors of the constant term (+ 48) which sum to give the coefficient of the x- term (- 16)
The factors are - 12 and - 4, since
- 12 × - 4 = + 48 and - 12 - 4 = - 16 , thus
x² - 16x + 48 = (x - 12)(x - 4) ← in factored form
Calculate the median, the range and identify the Q1 and Q3 for the following set: 5, 1, 6, 8, 1, 7, 4, 5, 6, 11, 3, 4, 4, 2, 5, 5 (hint draw a box and whisker plot)
Answers
Answer:
Arrange the data in ascending order
1,1,2,3,4,4,4,5,5,5,5,6,6,7,8,11
n=16
position of median = (n+1)/2 = 17/2 = 8.5 th item
8.5 th item is the average of 8 and 9th item
median = (5+5)/2 = 5
Range = largest value - smallest value
= 11 -1 = 10
position of Q1= (n+1)/4 = 17/4 = 4.25 th item
Q1 = 4 + 0.25(5th item - 4th item )
4 + 0.25(4-3)
= 4.25
position of Q3= (n+1)/4 = 3*17/4 = 12.75 th item
Q1 = 12 + 0.75(13th item - 12th item )
12 + 0.75(6-6)
= 12
Step-by-step explanation:
By treating savings as an ___ it guarantees that you will save the money instead of spending it
Answers
please answer fast!!!According to the Triangle Sum Theorem, which combinations of side lengths would make a possible triangle? Choose all that apply.
Group of answer choices
3, 4, 3.606
3, 6, 9.2
2, 5, 7
3, 4, 5
Answers
Answer:
Is there a picture of it?
Step-by-step explanation:
Answer:
3, 4, 5 would be the correct answer.
A box contains nine cards labeled J ,K ,L ,M ,N ,O ,P ,Q , and R. One card will be randomly chosen. What is the probability of choosing a letter from M to P?
Answers
Answer:
I think the answer is O
Multiply and simplify:
(2x + 8)
A)
2x2 +64
B)
4x? + 64
C)
4x2 + 32x + 64
D)
4x2 + 16x + 16
Answers
Answer:
A. 2x+8
Step-by-step explanation:
you take the two and multiply it to the X and the eight and that would give you 2X2 + 64