x = 239
y = 146
Step-by-step explanation:
Let two numbers be x and y
x + y = 385. ------------equation (1)
x - y = 93. ------------equation (2)
from (1) and (2)
x = 239 and y = 146
1/3 a = -5 whats the answer quick
Answer:
a=-15
Step-by-step explanation:
Answer:
A= -15
Step-by-step explanation:
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:
Given the following table and graph write the equation to represent the exponential function.
Answer:
The exponential equation is y = -2×(1/2)^x
Step-by-step explanation:
Ok we have a couple things to note here:
1) The horizontal asymptote of the function is the x axis (always nice)
2) At x=0, y=-2 (i.e, this function will be multiplied by -2 bc the exponent part will transform into one at x=0)
3) Then we need to ascertain the base of the exponential. Based on the facts that at x=1, y=-1 and the "a-value" is -2, we can set up an equation to find b:
y=a×b^x----> -1 = (-2)(b) ------> b=1/2
Therefore, the exponential equation is y = -2×(1/2)^x
Test:
At x = 0, y= -2
At x = -1, y = (-2)*(1/2)^-1 = (-2)*2 = -4
At x=2, y = (-2)*(1/2)^2= (-2)*(1/4) = -1/2
Thus we can be quite certain that this is correct
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
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
Help me with question 1
Answer:
The most logical answer would be C.
Step-by-step explanation:
Given that f(x)=2x−5 and g(x)=5x, evaluate g(f(2))
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
I count on in equal steps.
My first number is -9, my fifth number is 7.
-9
2
7
T
What is my third number?
You can solve it by A. P
A5=7,A1=-9
A5=A1+4D
D=4
A3=A1+2D
=8-9=-1
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
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.
In election,a candidate got
82 % votes.He won the election beating his rival in candidates by 576 votes.How many votes were polled?
#The first one to answer will mark brain list. And answer should be correct.
Answer:
703 votes
Step-by-step explanation:
703 times 0.82 equals 576.46
if 1 pound equals 16 ounces,how many ounces are in 13.35
Answer:
213.6 ounces
Step-by-step explanation:
13.35 x 16
Deposited 3,000$ and it earned 300$ in simple interest after 5 years what’s the interest rate
Answer:
The interest rate is 2%
Step-by-step explanation:
Simple Interest
Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.
The interest earned is calculated as follows:
I=P.r.t
Where:
I = Interest
P = initial principal balance
r = interest rate
t = time
The principal is P=$3,000 and it earned I=$300 in t=5 years. Thus the interest rate can be calculated by solving for r:
[tex]\displaystyle r=\frac{I}{P.t}[/tex]
[tex]\displaystyle r=\frac{300}{3,000*5}[/tex]
[tex]\displaystyle r=\frac{300}{15,000}[/tex]
r = 0.02
The interest rate is 2%
Ms. Good has a bag of 15 marbles. Three are blue, six are red, and six are yellow. What is the probability that she picks a yellow and then a red if she does NOT replace the marbles?
Im hoping someone can explain this to me, I have a stubborn math teacher who doesnt like to re-explain things.
Answer:
the chances of her picking a yellow one is 6 in 15
Step-by-step explanation:
all you have to do is divide the color that you are trying to find the probability of by the amount of that object is if that makes sense.
Answer:
the chances of her picking a yellow one is 6 in 15
Step-by-step explanation:
all you have to do is divide the color that you are trying to find the probability of by the amount of that object is if that makes sense.
- HOPE THIS HELPED!! PLEZZZ MARK ME AS BRAINLYEST PLEZZZ!!!!
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 :)
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
PLZ HELP
Maya exercises at least 50 minutes per day.
Use t to represent Maya's amount of exercise (in minutes per day).
Answer:
425261625
Step-by-step explanation:
1+2-4252+425251-34%+5%
Solve for x.
Explain each step you took to solve this question.
30
(9x-3)
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:
what is 6 times 3 plus 8 minus 1 and then divided by 8
Answer:
25.875
Step-by-step explanation:
6*3+8-1/8
18 + 8 - 1/8
25.875
The domain is blank The range is blank
At a restaurant, your bill has a food total of $45.50. Find the amount of an 18% tip on the food total.
Answer:
$8.19
Step-by-step explanation:
Divide both numbers together.
Don't forget to make 18% in a decimal format like this -> 0.18
45.50 / 0.18
[Easy Question] Answer this with evidence of the answer that you provided with me!
Answer:
48
To start you will find the area as if it was a rectangle. To do that you have to do 8x12. 8x12 = 96, but to find the area of a triangle you take the area of the rectangle and divide it by 2. 96 divided by 2 is equal to 48.
There are other methods of solving this but I think this is the easiest way!
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
Rob is saving to buy a new MP3 player. For every $11 he earns babysitting, he saves $6. On Saturday, Rob earned $33 babysitting. How much money did he save?
Answer:
He saved $18 of the $33
Step-by-step explanation:
Answer:
$48 , he save to buy mp3 in a week
help me with this answer please
Answer:
100
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
Okay so the first term in a sequence is the first number in a sequence, or a string of numbers that have a common difference( not just difference) . In your sequence, the first # is 100, meaning it is the first term.
Have a nice day!
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
Which coordinate points match the statement below? Select all that apply.
Every y-value is 3 less than the x-value
0 (4,1)
(4,7)
(8,5)
(7,4)
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...