The answer is either
A (-4,4)
B [-4,4)
C (-4,4]
D [-4,4]
Step-by-step explanation:
First of all this is a function which means it has a graph and a question with it. Concluding by that there should be a fraction chance for each answer, and seeing that there's 4 answers it is 1/4 chance per each. Concluding by all of this, choose one of them and it should be a 1/4 chance it is correct.
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answer:
The correct answer is A
Step-by-step explanation:
A ball has a diameter of 8 inches. What is its surface area? (Use 3.14 for pie.) WILL give brainest wh ok answer correct and fast.
Evaluate:
log 64
1/16
Answer:
64
Step-by-step explanation:
Evaluate log64 1/16. Write an equation in logarithmic form. log64 1/16 = x. Convert the equation to exponential form 1/16 = 64
1) The change in temperature from Wednesday to Thursday was -10°F. The
change in temperature from Thursday to Friday was -7°F. Which represents
a greater change in temperature?
The change from Wednesday to Thursday represents a bigger change in temperature.
The change from Thursday to Friday represents a bigger
change in temperature.
They are the same.
What I do understand of the quesetion, it should be "The change from Thursday to Friday represents a bigger change in temperature."
PLEASE HELP FAST I NEED IT RN
but maybe b
Step-by-step explanation:
45.75 + 4.85=? Plzzzz help
Answer:
50.6
Step-by-step explanation:
Answer:
50.6.................
If 5x+3y=12 and 4x-5y=17, what is the value of y?
Answer:
y = -1
(and x = 3)
Step-by-step explanation:
5x + 3y = 12
4x - 5y = 17
First, we'll solve for x in terms of y
5x = 12 - 3y
x = 12/5 - 3/5y
x = 2.4 - 0.6y
Then substitute that mess into the next equation:
4(2.4 - 0.6y) - 5y = 17
and solve for a numerical value of y
9.6 - 2.4y - 5y = 17
-7.4y = 7.4
y = -1
To finish and check, we can use that to solve for x:
x = 2.4 - 0.6(-1)
x = 2.4 + 0.6
x = 3
And check both values in the original equations.
5x + 3y = 12
4x - 5y = 17
5(3) + 3(-1) = 15 - 3 = 12
4(3) - 5(-1) = 12 +5 = 17
LMK if you have questions.
find the value of x.
Answer:
[tex]\boxed{\text{\sf \Large 3}}[/tex]
Step-by-step explanation:
Angles in a triangle add up to 180°
[tex]180-(24x+3+25x)[/tex]
[tex]-49x+177[/tex]
Angles on a straight line add up to 180°
[tex]-49x+177+150=180[/tex]
[tex]x=3[/tex]
is 5 to the power of -1 the same as 5 to the power of 1/2?
Answer:
No
Step-by-step explanation:
5 to the power of -1 is 0.2 while 5 to the power of 1/2 is 2.5
A racecar can travel 800 miles in 4 hours.Using(d) for distance in miles and (t) for numbers of hours,an equation that represents this situation is d=200t
800=200×4
the distance is 800 miles and the time is 4 hours
and the situation that are given is d=200t
Distance =800 miles
Time=4 hours
Given Situation=200
800=200•4
You have a recipe that calls for 2 parts of milk for every 5 parts of flour You use 8 cups of milk How much flour do you need?
Answer:
20
Step-by-step explanation:
how are graphs that have a>1 different from graphs with 0
Slide curve together,if it look like a happy face
Happy = positive/a>1
Slide curve together, if it look like a sad face
Sad = negative/a<1
. Donte estimates he will need 43 pounds of dog food. He actually needs 61 pounds. Calculator Donte’s percent error. * Your answer Submit
Answer:
1×
Step-by-step explanation:
#:;:,dgvgukyujj hhyfh
Daniel has a bag with 9 shoes in it. 4 of the shoes are sport shoes. What is the relative frequency probability that a randomly selected shoe will be a sport shoes?
Maria bought a bracelet. She paid $0.72 in sales tax at a rate of 6%. What was the original price of the bracelet, before tax?
Answer:
0.76 rounded don't mind my explanation
Step-by-step explanation:
in Geometry if you want a farewell you need to know the parallel lines they never touch they're always the same distance apart it's as if they don't like each other much and there's only one thing that comes between the line that passes right through each of them called the transversal line it has several angle properties just like these: vertically opposite angles are equal corresponding angles are equal alternate interior angles are equal co-interior angles equal 180* vertically opposite angles are equal corresponding angles are equal alternate interior angles are equal co-interior angles equal 180*
Answer:
absolutely caca/poop is what I think of math
Can someone help me answer these two questions please.
Answer:
The first one is a the second one is b
Step-by-step explanation:
please help, no need to show work, tysmmmm!!
Answer:
translation
Step-by-step explanation:
Yednia solved an equation and justified her steps as shown in the table.
2+2x5=−10
Drag and drop the reasons into the boxes to correctly complete the table.
Given:
Consider the equation
[tex]2+\dfrac{2x}{5}=-10[/tex]
To find:
The steps and solution for the given equation.
Solution:
We have,
[tex]2+\dfrac{2x}{5}=-10[/tex]
Step 1: Using subtraction property of equality, subtract 2 from both sides.
[tex]2+\dfrac{2x}{5}-2=-10-2[/tex]
[tex]\dfrac{2x}{5}=-12[/tex]
Step 2: Using multiplication property of equality, multiply both sides by 5.
[tex]\dfrac{2x}{5}\times 5=-12\times 5[/tex]
[tex]2x=-60[/tex]
Step 3: Using division property of equality, divide both sides by 2.
[tex]\dfrac{2x}{2}=\dfrac{-60}{2}[/tex]
[tex]x=-30[/tex]
Therefore, the solution of the given equation is [tex]x=-30[/tex].
(-1 + 5i) + (-2 - 3i)
Answer:
-3 + 2 i
Step-by-step explanation:
Which systems of linear equations have no solution?
x + y + z = 1,100
x - 2y - z = -500
2x + 3y + 2z = 2,600
x + y + z = 1,500
x - y -z = -500
2x + y + z = 2,000
x + y + z = 1,400
X-2y - Z = -500
2x + 2y + 2z = 2,700
x + y + z = 1,400
-0.5x - 0.5y - 0.5z = -900
2x + 3y + 2z = 3,000
x + y + z = 1,900
x - y - 2z = -2,000
2x + 2y + z = 1,100
x + y + z = 2,400
2x - 2y + 2z = 700
x + 3y + z = 2,400
Answer:
Step-by-step explanation:
The systems of linear equations that have no solution are:
a)
x + y + z = 1,100
x - 2y - z = -500
2x + 3y + 2z = 2,600
b)
x + y + z = 2,400
2x - 2y + 2z = 700
x + 3y + z = 2,400
What is a solution?Solutions are the values of an equation where the values are substituted in the variables of the equation and make the equality in the equation true.
We also find the solution in a system of equations using the substitution or elimination method.
Example:
2x + 4 = 8
The solution is x = 2.
We have,
To determine which systems of linear equations have no solution, we need to check whether the system is inconsistent, i.e., there are no values of x, y, and z that satisfy all the equations simultaneously.
One way to check this is to use row reduction to put the system into row echelon form or reduced row echelon form and see if we obtain any contradictory equations.
Another way is to use determinants, but we'll use row reduction here.
a)
| 1 1 1 | 1,100 |
| 1 -2 -1 | -500 |
| 2 3 2 | 2,600 |
R2 = R2 - R1 and R3 = R3 - 2R1:
| 1 1 1 | 1,100 |
| 0 -3 -2 | -1,600 |
| 0 1 -1 | -1,800 |
R2 = -1/3 R2 and R3 = R3 + R2:
| 1 1 1 | 1,100 |
| 0 1/3 2/3 | 533.33|
| 0 0 1/3 | -933.33|
Now, we can solve for z in the last equation:
z = -2800
Substituting into the second equation gives:
y = 2666.67
But substituting into the first equation gives:
x = -566.67
So, this system has no solution.
b)
| 1 1 1 | 1,500 |
| 1 -1 -1 | -500 |
| 2 1 1 | 2,000 |
R2 = R2 - R1 and R3 = R3 - 2R1:
| 1 1 1 | 1,500 |
| 0 -2 -2 | -2,000 |
| 0 -1 -1 | -1,000 |
R2 = -1/2 R2 and R3 = R3 - 1/2 R2:
| 1 1 1 | 1,500 |
| 0 1 1 | 1,000 |
| 0 0 -1 | -500 |
Now, we can solve for z in the last equation:
z = 500
Substituting into the second equation gives:
y = 500
But substituting into the first equation gives:
x = 500
So, this system has a unique solution.
c)
| 1 1 1 | 1,400 |
| 1 -2 -1 | -500 |
| 2 2 2 | 2,700 |
R2 = R2 - R1 and R3 = R3 - 2R1:
| 1 1 1 | 1,400 |
| 0 -3 -2 | -900 |
| 0 0 0 | 0 |
The last row of the augmented matrix corresponds to the equation 0x + 0y + 0z = 0, which is always true.
Therefore, this equation is not contradictory and doesn't add any new information to the system.
We can eliminate it and rewrite the system as:
| 1 1 1 | 1,400 |
| 0 -3 -2 | -900 |
R2 = -1/3 R2:
| 1 1 1 | 1,400 |
| 0 1 2/3 | 300 |
R1 = R1 - R2:
| 1 0 1/3 | 1,100 |
| 0 1 2/3 | 300 |
Now, we can solve for z in the first equation:
z = 3,300
Substituting into the second equation gives:
y = -1,200
But substituting into the first equation gives:
x = -2,200
So, this system has a unique solution.
d)
| 1 1 1 | 1,400 |
|-0.5 -0.5 -0.5 | -900 |
| 2 3 2 | 3,000 |
R2 = 2R1 + R2 and R3 = -4R1 + R3:
| 1 1 1 | 1,400 |
| 0 1/2 1/2 | -100 |
| 0 -1 -2 | -3,600 |
R3 = -2R2 + R3:
| 1 1 1 | 1,400 |
| 0 1/2 1/2 | -100 |
| 0 0 -3 | -3,400 |
Now, we can solve for z in the last equation:
z = 1,133.33
Substituting into the second equation gives:
y = -1,066.67
But substituting into the first equation gives:
x = 2,333.33
So, this system has a unique solution.
e)
| 1 1 1 | 1,900 |
| 1 -1 -2 | -2,000 |
| 2 2 1 | 1,100 |
R2 = R2 - R1 and R3 = R3 - 2R1:
| 1 1 1 | 1,900 |
| 0 -2 -3 | -3,900 |
| 0 0 -3 | -4,100 |
Now, we can solve for z in the last equation:
z = 1,366.67
Substituting into the second equation gives:
y = -1,033.33
But substituting into the first equation gives:
x = 1,667
So, this system has a unique solution.
f)
| 1 1 1 | 2,400 |
| 2 -2 2 | 700 |
| 1 3 1 | 2,400 |
R2 = R2 - 2R1 and R3 = R3 - R1:
| 1 1 1 | 2,400 |
| 0 -4 0 | -1,100 |
| 0 2 0 | 1,000 |
R2 = -1/4 R2 and R3 = 1/2 R3:
| 1 1 1 | 2,400 |
| 0 1 0 | 275 |
| 0 1 0 | 500 |
R3 = R3 - R2:
| 1 1 1 | 2,400 |
| 0 1 0 | 275 |
| 0 0 0 | 225 |
The last equation shows that 0x + 0y + 0z = 225, which is impossible. Therefore, this system has no solution.
Thus,
The systems of linear equations that have no solution are:
a)
x + y + z = 1,100
x - 2y - z = -500
2x + 3y + 2z = 2,600
b)
x + y + z = 2,400
2x - 2y + 2z = 700
x + 3y + z = 2,400
Learn more about solutions of equations here:
https://brainly.com/question/545403
#SPJ7
−24 = −0.6k can you slove this answer
Answer:
-24 = -0.6k
k=-24/-0.6
k=40
Let me know if this helps!
For what value of x must ABCD be a parallelogram ?
Answer:
x = 4
Step-by-step explanation:
as it is parallelogram opposite sides are equal
so14x -7= 10x-9
14x-7+9=10x
14x -16 = 10x
14x -10x = 16
4x =16
x = 16/4
x = 4
also u can put x = 4 in both expressions and u will get answer of both 49
PLEASEEEEE HELPPPPPPPP
Answer:
your answer is 50°
Step-by-step explanation:
Hope this helps
Answer:
50
Step-by-step explanation:
realized its 50 rn
you can also draw out 50 degrees and see that it is very similar
How many solutions does 7(x - 2) + 5 = 3 (2x - 1) + 1 have?
Answer:
one, x = 7
Step-by-step explanation:
7(x - 2) + 5 = 3 (2x - 1) + 1
reduce:
7x - 14 + 5 = 6x - 3 + 1
x = 7
anyone got an answer for this math question?
Answer:
So you have a scale
you multiply: 8×(3/4)
And your x= 6
Is 20 mm equal to 2 cm
Answer:Yes
Step-by-step explanation:
Yeah can someone help me on this. I don't know what to add to prove it?
Answer:
AC bisects BCD
Reason: The angles in the resulting triangles are congruent.
Adoncia lives 4/5 mi from the library. Mariko lives 0.72 mi from the library.
a. Who lives farther from the library? How much farther? show your work
plz help!?!
4/5 as an decimal is 0.80 So when you compare 0.80 to 0.72 which is 0.80 > 0.72 you can tell that
Adoncia lives further by 0.08
P
13 cm
Q
5 cm
12 cm
What is the length of diagonal PQ? Round to the nearest hundredth
A. 27.93 cm
B. 25.01 cm
C 17.69 cm
D 18.38 cm
Let's say you have 13 marbles in a bag. Seven marbles are big, 6 are small. What is the probability of pulling out one big marble, replacing it, then pulling out a small marble?
Answer:
7/26
Step-by-step explanation:
First, find the probability of pulling out a big marble.
Since there are 7 big marbles, and 26 in total, the probability is 7/26
Now, find the probability of pulling out a small marble after the replacement.
There are 6 small marbles and 26 in total, so the probability is 6/26. This can be simplified by dividing each side by 2. This will get you 3/13
To find the probability of both of these happening, multiply the probabilities by each other:
(7/26) x (3/13)
= 7/26
So, the probability is 7/26