Answer:
ayy I gotchuu
Step-by-step explanation:
theres gonna be two solutions
a negative then positive
positive:
|3x - 9| = 12
3x-9=12
3x=21
x=7
negative:
3x-9=-12
3x=-3
x=-1
Answer:
7 & -1
Step-by-step explanation:
Assuming you want the value of x...
Since the equation is wrapped in an absolute value, we must get x for both the positive and negative value.
Positive x
[tex]3x-9=12\\3x=21\\x=7[/tex]
Negative x
[tex]3x-9=-12\\3x=-3\\x=-1\\[/tex]
Both of these will equal 12 when tested.
[tex]|3(-1)-9|=12\\|-3-9|=12\\|-12|=12\\12=12\\[/tex]
[tex]|3(7)-9|=12\\|21-9|=12\\12=12\\[/tex]
Suppose that height of community college students is a normally distributed random variable with a mean of 66 inches and a standard deviation of 5 inches. Calculate the Z-score for a student whose height is 70 inches.
Just stating an answer is not enough – you need to show how you are calculating the Z-score.
Answer:
1
Step-by-step explanation:
becouse is the best awser on there
Find the equation of the purple line.
Answer:
Y-3/5x+2
Step-by-step explanation:
Identify the VERTEX
Please help
Answer:
1,-4
Step-by-step explanation:
The vertex is always that little spot there at the tip of a nonlinear function.
What is the value of x?
(6x – 1)º
(5x + 5)º
(4x + 8)º
(3x)º
(5x + 3)º
X =
Step-by-step explanation:
(1 point)
No, there isn't a more efficient way to solve this system.
Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.
HELLP PLZ... Also MERRY EARLY CHRISTMAS
Answer:
Step-by-step explanation:
0 would represent the surface of the water
4 seguall
3
2
1 above water
0-surface of the water
-1 in the water
-2
-3
-4
Answer:
on the surface, because 0 represents sea level.
Step-by-step explanation:
Hope this helps and good luck :)
Most living things need oxygen to survive you breathe in oxygen and it is carried to this Organ. here the red blood cells pick up the oxygen and carry the oxygen to all the body cells that need it what is this organ
Answer:
The lungs
Step-by-step explanation:
becuase biology
4. What is the total volume of the grain silo? Explain how you found your answer.
Write your answer in the space below.
Answer:
Multiply the surface area by the height of the cylindrical portion of the silo to determine that area. A silo with a radius of 10 feet and a height of 20 feet for the cylinder has a volume of 6,280 cubic feet. Determine the area of the dome portion of the silo with the sphere volume formula: (4/3)(pi)(r^3).
Multiply pi, or 3.14, by the square of the radius to calculate surface area. Multiply the surface area by the height of the cylindrical portion of the silo to determine that area. A silo with a radius of 10 feet and a height of 20 feet for the cylinder has a volume of 6,280 cubic feet.
Step-by-step explanation:
Solve the equation.
8 (2-6v) +19=-61
Answer:
v = 2
Explanation:
8(2 − 6v) + 19 = −61
[ Simplify both sides of the equation ]
8(2 − 6v) + 19 = −61
(8)(2) + (8)(−6v) + 19 = −61 (Distribute)
16 + −48v + 19 = −61
(−48v) + (16 + 19) = −61 (Combine Like Terms)
−48v + 35 = −61
−48v + 35 = −61
[ Subtract 35 from both sides ]
−48v + 35 − 35 = −61 − 35
−48v = −96
[ Divide both sides by -48 ]
−48v / -48 = −96 / -48
v = 2
- PNW
What is the domain of the relation (8, -2), (4, -2), (-3, 2), (-5, -3)?
A. {8, 4, 3, -5}
B. {-8, -4, 3,5}
C. {-5, -3, 4, 8}
D. {-3, -2, 2}
Answer:
C
Step-by-step explanation:
Domain (and range) don't necessarily have to be in smallest to largest order unless your teacher requires it, so don't worry about the order.
Let's remind ourselves that the domain is the input value, or the x value, and y is the output value, or the y value. We know that in an ordered pair, the first # is x and the second # is y (because x comes before y in the alphabet). Lets look at our ordered pairs and see what the x values are.
{(8, -2), (4, -2), (-3, 2), (-5, -3)}
The x values are 8, 4, -3, and -5, therefore:
Domain: {8,4,-3,-5}
Range would equal all the y values. Remind yourself that if an x value is repeated to only write it down ONCE.
Remember, the order does not matter, so the answer would be C.
Hope this helped!
What is the product of(5)(3)
Answer:
15
Step-by-step explanation:
just cause
Which of the following inequalities is correct?
Answer:
B
Step-by-step explanation:
Please help!
Write an equation of the line in slope-intercept form.
Answer:
y=4/2m-3 OR y=2m-3
Step-by-step explanation:
does increase in sample size increases degrees of freedom for t-tests.
the reciprocal of 3 - 1/5 is
Answer:
[tex]\frac{5}{14}[/tex]
Step-by-step explanation:
First subtract the two terms by setting the first term as a fraction.
3 * [tex]\frac{5}{5}[/tex] = [tex]\frac{15}{5}[/tex]
Then subtract the terms.
[tex]\frac{15}{5}[/tex][tex]-\frac{1}{5}[/tex] = [tex]\frac{14}{5}[/tex]
Finally, flip the numerator and the denominator.
Which of the following is equivalent to 12950+750-750
Answer:
12950
Step-by-step explanation:
BACK AT IT AGAIN WITH 100 POINTSSSSS!!! FIRST ONE TO ANSWER GETSSSSSS BRAINLIEST!!!!!
Answer:
me breolllllll please
(11 + 42 - 5) / (11 - 4) (11+42-5) 48/(11-4) 48/7
Answer:
= -24576/7
or
-3510.857142
both are the correct answer
10 points for correct answer and giving brainliest
Answer: B
Step-by-step explanation:
How long does it take the kangaroo to travel 5 km
Answer:
Time taken by kangaroo to travel 5 km = 4.27 minutes.
Step-by-step explanation:
Speed of kangaroo is 44 mph.
Speed of kangaroo = 44 mph = 44 x 1.6 = 70.4 kmph = 19.5 m/s
We need to find how much time it takes to travel 5 km
Distance traveled = 5 km = 5000 m
We have
Distance traveled = Speed x Time taken
5000 = 19.5 x Time taken
Time taken = 256.41 seconds
Time taken = 4.27 minutes.
Answer:7.5
Step-by-step explanation:
PLEASE I NEED HELP WITH MATH
Answer:
117
Step-by-step explanation:
Hi, If you were to add 75 to 42, you would get 117. Since a triangle's angles all have to add up to 180, the last angle would be 63. However, you are looking for the outside angle, which would then just be 117. Hope this is right!
What is the measure of ZA?
100"
A. 30
B. 50°
C. 70°
D. 130°
If $2000 is deposited into an account paying simple interest of 6% per year on a monthly basis, in how many months will this account increase by $90?
A. 22
B. 15
C. 9
D. 4
Joseline has 347 marbles. Ever has 4 times as many as Joseline. Pablo has 799 fewer than Ever. How many marbles does Pablo have? Joseline tiene 347 canicas. Ever tiene 4 veces más que Joseline. Pablo tiene 799 menos que nunca. ¿Cuántas canicas tiene Pablo?
Answer:
its D
Step-by-step explanation:
pleaseeee help eoth #7
Answer:
SAS
Step-by-step explanation:
statements:
line KN = LMline KN || LMline LN = LN∠KNL = ∠MLNΔKLN = ΔMNLreasons:
givengivenreflexive propertyalternate interior angleSASSolve 11 < 3x+8 < 20.
Answer:
1<x<4
Step-by-step explanation:
this helps me out a lot in my math class
Answer:
x=4 and thats your answer thanks for helping you but if using the z-score it's 0
Step-by-step explanation:
1<x<4
please help ALGRBRA II 10 points
Find the dimensions of the rectangular box with maximum volume in the first octant with one vertex at the origin and the opposite vertex on the ellipsoid 4x^2+y^2+4z^2=4
a. The length of the box in the x-direction is:_______
b. The length of the box in the y-direction is:_______
c. The length of the box in the z-direction is:_______
Solution :
Let x, y, z be the dimensions of the rectangle.
Volume of the rectangle (V) = xyz
Given that the vertex should lie on ellipse [tex]$4x^2 + y^2+4z^2=4$[/tex] .......(i)
So here the volume xyz must be maximum with constraints above.
We solve this using Lagranches method with variable λ
Lagranches function is
[tex]$F : xyz + \lambda(4x^2+y^2+4z^2-4)=0$[/tex] .....(ii)
To find λ, [tex]$\frac{dF}{dx}=0; \frac{dF}{dy}=0;\frac{dF}{dz}=0$[/tex]
[tex]$\frac{dF}{dx}=0 \Rightarrow yz+\lambda(16x)=0 \Rightarrow \lambda = -\frac{yz}{16x}$[/tex] .............(iii)
[tex]$\frac{dF}{dy}=0 \Rightarrow xz+\lambda(2y)=0 \Rightarrow \lambda = -\frac{xz}{2y}$[/tex] ..................(iv)
[tex]$\frac{dF}{dz}=0 \Rightarrow xy+\lambda(16z)=0 \Rightarrow \lambda = -\frac{xy}{16z}$[/tex] ...............(v)
Equating (iii) and (iv)
[tex]$-\frac{yz}{16x}=-\frac{xz}{2y} \Rightarrow y^2=8x^2 \Rightarrow y = \sqrt8 x$[/tex] ...............(vi)
Equating (iii) and (v)
[tex]$-\frac{yz}{16x}=-\frac{xy}{16z} \Rightarrow z^2=x^2 \Rightarrow z = x$[/tex] ....................(vii)
Substitute (vi) and (vii) in (i),
From (i),
[tex]$4x^2 + (\sqrt8 x)^2+4x^2 = 4$[/tex]
[tex]$\Rightarrow 4x^2 +8x^2+4x^2 = 4 \Rightarrow x = \frac{1}{4}$[/tex]
From (vi),
[tex]$y = \sqrt8 x$[/tex]
[tex]$\Rightarrow y= \sqrt8 \times \frac{1}{4} \Rightarrow y =\frac{\sqrt8}{4}$[/tex]
[tex]$\Rightarrow y =\frac{\sqrt{2\times4}}{4} \Rightarrow y = \frac{1}{\sqrt2}$[/tex]
From (vii),
z = x
[tex]$z =\frac{1}{4}$[/tex]
Therefore, for maximum volume the dimensions of a rectangle box are
[tex]$x =\frac{1}{4} ; y = \frac{1}{\sqrt2} ; z =\frac{1}{4}$[/tex]
0.123
0.795
0.1
0.654
0.21
0.001
0.78
0.007
0.012
0.56
0.61
0.45
0.47
0.85
0.79
0.12.
0.124
0.5
Answer:
um what?
Step-by-step explanation:
What the heck are all these numbers
Need help! ASAP! With algebra
Answer:
2;4;3
Step-by-step explanation:
y=2x²+4x+3
If someone can just answer the first question that would be so helpful plzzz
Answer:
I'm guessing that when you graph it, the graph changes direction when it's not on the x-axis. the "real zeros" of a graph are the ones that go through the x-axis and then imaginary ones are the ones that don't.
Step-by-step explanation:
