1/3 a = -5 whats the answer quick
Answer:
a=-15
Step-by-step explanation:
Answer:
A= -15
Step-by-step explanation:
LMNP is a rectangle. find the value of x and the length of each diagonal LN = 7 and MP = 4x + 3
Answer:
x=1
Diagonals are both 7
Step-by-step explanation:
Diagonals of a rectangle are both equal
So ...
4x + 3 = 7
4x = 4
x = 1
câte numere de forma xy2t sunt divizibile cu 5
a. 200
b. 190
c. 162
d. 180
Answer:
câte numere de forma xy2t sunt divizibile cu 5
a. 200
I'm not sure about answer...
5v^2 -- 30v + 40
Factoring polynomials
First let's factor a 5 from every term.
5v^2-30v+40
=5(v^2-6v+8)
The v^2-6x+8 can be further factored using the x method(as I call it, its not its official name of course), You can get
5(v^2-6v+8)
=5(v-2)(v-4)
Done! any questions just ask in the comment section.
**Edit: You needed the area model so here is how it goes, I cannot draw lines but I will try my best.
we have original equation 5v^2-30v+40
first simplify to 5(v^2-6v+8)
Now factor the second part but using area model.
v -2
_____________
v | [tex]v^2[/tex] | -2v |
--------------------------
-4 | -4v | 8 |
_____________
This is basically the area model the thing in the middle is suppose to be a rectangle split into 4 parts and then the numbers on top and left are suppose to be the factored equations while they multiplies to the number in the box.
Is this efficient?
Definitely not, it took me longer to draw the box than write my whole first explanation.
Is this easy?
No, again it took me about 170 times longer to think of this answer this way.
Should you use this method?
Sure if your teacher wants you to, but just saying later in algebra these methods are way to slow and there are way better methods to factor, so if you arn't solid in the area model just don't worry about it.
An open box is to be made by using a piece of sheet metal with the dimensions of 4m by 2m. Determine the dimensions the box should be to maximize volume by cutting out the four corners of the material and folding up the edges to make the box. The material that is cut out is waste and cannot be used.
Answer:
Dimensions: 0.4 by 3.2 by 1.2
Step-by-step explanation:
I'm assuming here that we are cutting out squares out of each of the metal's corners:
Let x = the length of each cut-out square,
Each base (of the desired net square folded) is 4-2x, and 2-2x respectively,
Volume = x(4-2x)(2-2x)
= 4x^3 - 12x + 8x
Now we take the derivative:
[tex]\frac{d}{dx}\left[4x^3-12x^2+8x\right]\\\\= \frac{d}{dx}\left(4x^3\right)-\frac{d}{dx}\left(12x^2\right)+\frac{d}{dx}\left(8x\right)\\\\= 12x^2-24x+8[/tex]
We equate to 0 (0 for max volume), and solve using the quadratic formula:
[tex]12x^2-24x+8=0,\\\\x_{1,\:2}=\frac{-\left(-24\right)\pm \sqrt{\left(-24\right)^2-4\cdot \:12\cdot \:8}}{2\cdot \:12}\\\\= \frac{-\left(-24\right)\pm \:8\sqrt{3}}{2\cdot \:12}\\\\\mathrm{Separate\:the\:solutions}:\\\\x_1=\frac{-\left(-24\right)+8\sqrt{3}}{2\cdot \:12},\:x_2=\frac{-\left(-24\right)-8\sqrt{3}}{2\cdot \:12}\\\\x =\frac{3+\sqrt{3}}{3},\:x=\frac{3-\sqrt{3}}{3}\\\\x=1.57735\dots ,\:x=0.42264\dots[/tex]
So we approximate the side lengths to be 1.6 and 0.4 respectively. But when we plug in 1.6 for x, we get the volume as negative. Therefore x has to be 0.4.
Side lengths: 0.4, 4-2(0.4) => 3.2, 2-2(0.4) => 1.2
a framer sells 16 pounds or his small 48 pound potato crops what percent does he sell
Answer:
Is it 32
Step-by-step explanation:
I think your suppose to subtract if you get it wrong i'm sorry
Answer:
33.3333333% (with the 3 repeating forever)
Step-by-step explanation:
If they sell 16 pounds/48 pounds, you can first simplify this fraction:
16/48 = 1/3.
Then, you do 1 divided by 3 and you would get 0.33333...
As a percent, this is 33.3% (where the 3 is repeating forever)
Is that right? Is x equal to 6?
Answer:
x=4
Step-by-step explanation:
It can't be x=6 because 15x6 is 90 and that doesn't allow for the 8x-2. The bottom half has to equal 180 because it's a straight line. So, 18x4=60. Then 8(4)-2 equals 30. 30+60=90. 90+90 equals 180.
Becky is meeting her friend at the library at 12:45 p.m. It takes her 25 minutes to get to the library. What time will she need to leave her house to arrive on time?
Answer:
Becky must leave at 12:20pm to arrive on time
Step-by-step explanation:
12:45-25=12:20
a solid shape with two flat surfaces and one curved surface
Answer:
cylinder
Step-by-step explanation:
Which expression has a value of 35 when p = 7?
Answer:
B) 5p
Step-by-step explanation:
If you substitute 7 in for each equation you will see that the answers are either 7, 38, or 32, which are not 35. But when you substitute 7 in for B, 5(7), and multiply it out you get 35. I hope this helps :)
What is the value of h? g = -7.1 h = 3 - 10g
Answer:
74
Step-by-step explanation:
Please separate the two functions:
g = -7.1
h = 3 - 10g
Substitute -7.1 for g in h = 3 - 10g:
h = 3 - 10(-7.1) = 71 + 3 = 74
Simplify 5-2 x 55 x 5.
Hello! Your answer is:
5-2*55*5 = -545
Answer:
5-500x^2
Step-by-step explanation:
A battery manufacturer wants to test their batteries.
They put a battery in a torch, switch on the torch, and see how long the battery lasts.
Explain why testing a 10% sample of their batteries would not be suitable.
…………………………………………………………………………………………………………………..
…………………………………………………………………………………………………………………..
Answer:
A flashlight or torch or torchlight is a portable hand-held electric light. Formerly, the light source typically was a miniature incandescent light bulb but these have been displaced by light-emitting diodes (LEDs) since the mid-2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a lens) to protect the light source and reflector, a battery, and a switch, all enclosed in a case.
Hope this helps a little.
Answer:
a because i know its right
Two students created a list of steps for the following construction. Which student has steps in the correct order, and which does not? Explain
Answer:
where's the question??
Step-by-step explanation:
LCM of 10, 12 and 15
Answer:
60
Step-by-step explanation:
ellus
8
Which constant number would
you add to both sides of the
equation in order to complete
the square for the quadratic
function 1 = x2 – 3x?
Give your answer as a fraction in simplest form.
[?]
[]
HINT: Use ()?
Enter
9514 1404 393
Answer:
2.25
Step-by-step explanation:
Add the square of half the x-coefficient to complete the square.
(-3/2)² = 9/4 = 2.25
Evaluate the expression.
(−1/12)^2
I'm so st00pid LOL
Answer:
1/144 (decimal: 0.0069 4) the four is repeating.
Step-by-step explanation:
2-2<4-5=1 hope this helps :D
please help me I really need help
Answer:
Step-by-step explanation:
the volume of this prism is equal to
V=l*w*h
V=(x+1)(x)(x-3)
multiply
V=x^3-2x^2-3x
it is your first choice
Answer:
Step-by-step explanation:
[tex]V=LWH\\ \\ V=x(x+1)(x-3)\\ \\ V=x(x^2-2x-3)\\ \\ V=x^3-2x^2-3x[/tex]
y-4=3(x+2) in slope intercept form step by step
Answer: y = 3x + 10
Step-by-step explanation:
y - 4 = 3(x + 2)
=> y -4 = 3x + 6
=> y = 3x + 10
which images shows a reflection
I'll Give You Some Hints:
Let's Look at C.
In C, the triangle is translated 2 units to the right. Which means that it cannot be a reflection.
Let's Look at B.
In B there is a sideways triangle. That means it's a Rotation. Which means it's not Reflected.
Lastly, Let's Look at A.
To get from the original triangle to the triangle in A, you have to reflect twice. Once along a vertical line, and then along a horizontal line.
This Information Should Help You
y varies directly as x and z. Y is equal to 16 when x=2 and z=4,find Y when x=1 and z=7
Answer:
here's one way: z^x = Y, 7^1 = 7
Y = 7
Step-by-step explanation:
The width of a circular track is 2 meters. If the radius of the outer circle is 6 meters, find the area of the track.
Answer:
[tex] 62.8 \: {m}^{2} [/tex]
Step-by-step explanation:
Radius of outer circle = 6 m
Width of the track = 2 m
So, radius of inner circle = 6 - 2 = 4 m
Area of the track = Area of outer circle - Area of inner circle
[tex] = \pi {6}^{2} - \pi {4}^{2} \\ \\ = \pi( {6}^{2} - {4}^{2} ) \\ \\ = 3.14 \times (36 - 16) \\ \\ = 3.14 \times 20 \\ \\ = 62.8 \: {m}^{2} [/tex]
hey... what's
[tex](a {}^{2} - b {}^{2} ) = [/tex]
Answer:
[tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex]
Step-by-step explanation:
This is the Difference of Squares: [tex](a^{2} - b^{2} ) = (a + b)(a - b)[/tex].
Hope it helps!
it is (a + b) ( a - b )
hope it helps
Find the radius of the sphere. Use 3.14 for
V= 113.04
Answer:
square root of pie represent the triangularity of the polverinizing sphere which is V=12.^7aN(f>82
A box can at most be packed with 50 eggs. If there are
currently 20 eggs already. How many eggs can be added at
most?
____ eggs
Answer:
30
Step-by-step explanation:
Daniel picked out a book to give his dad for his birthday. Daniel only has 63cents from his piggy bank. His mom said she would pay the rest. She paid$12.81. What was the cost of the book?
Answer:
$13.44
Step-by-step explanation:
Daniel's money + Mom's money = $12.81 + $0.63
That is $13.44.
Hope that helps!
I need help for this table option
Answer:
4.3 g
Step-by-step explanation:
An outlier is a data point that strays far from the average of the group.
The other data points are all close to 3.
See how 4.3 is way farther from 3 than all the rest?
what’s the sum (3x – 5) + (-4x + 1)
Answer:
−x−4
Step-by-step explanation:
Answer:
o find the inverse, interchange the variables and solve for
y
.
f
−
1
(
x
)
=
x
7
+
4
7
Step-by-step explanation:
What is mZMHJ?
O 35°
O 50°
O 72.5°
O 92.5°
Answer:
Your answer is
∠MHJ = 50°
Mark my answer as brainlist . I need that urgently . Folow me for more answer.
Step-by-step explanation:
The measure of angle ∠MHJ is 35.
Option A is the correct answer.
What are corresponding angles?The angles that are in the same position on a given two parallel lines intersected by a transversal line are called the corresponding angles.
Corresponding angles are always equal.
We can also have alternate angles which are always equal.
We can also have alternate interior and exterior angles which are equal.
The angles on the same side make upto 180 degrees
We have,
From the figure,
We can see that,
(2x - 20) and (x + 15) are opposite angles.
So,
2x - 20 = x + 15
2x - x = 15 + 20
x = 35
Thus,
The measure of angle ∠MHJ is 35.
Learn more about corresponding angles here:
https://brainly.com/question/1597341
#SPJ7
a group of friends decided to share 4 chocolate bars, if each friend only ate 2/3 of a chocolate bar, how many friends shared the chocolate bars?
Answer:
6 friends
Step-by-step explanation: