Answer:
2x+30
Step-by-step explanation:
which of these fractions below are equivalent to 3/4?
Please? Help
Answer:
12/16, 6/8, 15/20, 24/32
Step-by-step explanation:
Because to find the equivalents, you have to multiply/ divide the numerator and the denominator with the same number.
OMG HELPPPPPPPPPPPPPPPP PLEASE picture below :)
Answer:
a is greater than -2
Step-by-step explanation:
Solving a comparison like this is the same as solving an equation, except you need to watch out for the signs of numbers.
Given:
-2a - 12 < -8
The first thing we need to do here is to add 12 to both sides:
-2a - 12 + 12 < -8 + 12
-2a < 4
You'll notice we're just increasing both sides, so the relationship stays the same.
Now we divide both sides by -2. Because the number is negative, it changes whether the result is greater or less.
-2a < 4
-2a ÷ -2 > 4 ÷ -2
a > -2
Giving us our final answer.
Find the circumference of the circle rounded to the nearest
whole number
5 in.
79 in.
31 in.
15 in
16 in
HELP I NEED HELP ASAP
Answer:B
Step-by-step explanation:
The probability of dry weather (D) = 1⁄2, rain (R) = 1⁄3 and snow (S) = 1⁄6
If it is dry the probability that someone will arrive on time is 4
/5.
If it rains the probability that someone will arrive on time is 2
/5.
If it snows the probability that someone will arrive on time is 1
/10.
Calculate the probability that somebody is late.
=============================================================
Explanation:
Define the following events
D = weather is dryR = weather is rainyS = weather is snowyL = person is lateT = person is on timeWe are given the following probabilities
P(D) = 1/2P(R) = 1/3P(S) = 1/6Then we're further told that "if it is dry, then the probability someone will arrive on time is 4/5". We can condense that into the notation
P(T given D) = 4/5
The "given D" means that we know 100% that event D has occurred. So we're seeing how event T behaves because of D occurring. In other words P(T given D) is the same as saying "What is P(T) when we know D has happened?"
-------------------------
The instructions also mention that "If it rains, the probability someone is on time is 2/5" tells us we have the notation
P(T given R) = 2/5
And also, the probability someone is on time if it is snowy is
P(T given S) = 1/10
due to it saying "If it snows, the probability that someone will arrive on time is 1/10".
-------------------------
To recap so far, your teacher told you these three conditional probabilities
P(T given D) = 4/5P(T given R) = 2/5P(T given S) = 1/10They are conditional due to the "given" as part of the probability. They depend on the given event happening.
Subtract each fraction from 1 and we end up with these complementary probabilities
P(L given D) = 1/5P(L given R) = 3/5P(L given S) = 9/10I'm using the idea that P(A)+P(B) = 1, where A and B are complementary events. One or the other event must happen. Either you are on time, or you are late.
---------------------------
Recall the conditional probability formula is
P(A given B) = P(A and B)/P(B)
which rearranges to
P(A and B) = P(A given B)*P(B)
We'll use this idea to get the following
P(L and D) = P(L given D)*P(D) = (1/5)*(1/2) = 1/10P(L and R) = P(L given R)*P(R) = (3/5)*(1/3) = 1/5P(L and S) = P(L given S)*P(S) = (9/10)*(1/6) = 3/20This means,
P(L) = P(L and D) + P(L and R) + P(L and S) ..... law of total probability
P(L) = 1/10 + 1/5 + 3/20
P(L) = 2/20 + 4/20 + 3/20
P(L) = (2+4+3)/20
P(L) = 9/20 is the probability someone is late
Solve for X. Please help ASAP. I have no idea how to do this and it’s due really soon!!
Answer:
x=4
Step-by-step explanation:
14=3x+2
Move all terms that don't contain x to the right side and solve.
help me pls with these 2 i will give brainliest for correct answer
Answer:
C
Step-by-step explanation:
(0,4) is the intercept
What is the total surface area??? Please help me
Will mark brainlest.
Which equation gives the sum of...?
Answer:
your answer will be C
Step-by-step explanation:
have a nice day/night bye!!
PLS HELP ASAP FOR BRAINLIEST
Answer: x=45
Step-by-step explanation:
Solve for c get 20 c=b so b+115 =135 180-135=x
Answer:
x=45
Step-by-step explanation:
160=115+x (use vertical angles)
subtract 115 from both sides
160-115=45
x=45
Isabella is travelling in Brazil during the summer, She knows that a 15-minute phone call home to her family costs $45.85 and a 20-minute phone call costs $58.30 sabella only has $55.81 to spend on her phone call. How long can she talk to her family?
Which graph can be used to find the solution to the system of equations below?
2x + y = -4
-3y = 2x + 12
Answer:
x = 0, y = -4
Now plug it in:
y = mx + b
-4 = b
So the y intercept is -4
You can also graph the equation.
Solve for x. Enter the solutions from least to greatest.
x2 + 16x + 63 = 0
lesser x =
greater x =
Answer: less= -9.41
Greater= -6.59
Step-by-step explanatio. it is
Answer:
Step-by-step explanation:
Write the Quadratic Formula for the quadratic equation.
Answer:
[tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]
Step-by-step explanation:
Hello!
Let's start with the given equation and work our way towards x.
Solve for x[tex]ax^2 + bx + c = 0[/tex]Divide both sides by a
[tex]a(x^2 + \frac bax + \frac ca) = 0[/tex] [tex]x^2 + \frac bax + \frac ca = 0[/tex]Move c/a to the other side
[tex]x^2 + \frac bax = -\frac ca[/tex]At the step, we have to use the Completing the Square method.
[tex]x^2 + \frac bax + (\frac{b}{2a})^2 = -\frac ca + (\frac b{2a})^2[/tex][tex]x^2 + \frac bax + \frac{b^2}{4a^2} = -\frac ca + \frac {b^2}{4a^2}[/tex][tex](x + \frac b{2a})^2= -\frac ca + \frac{b^2}{4a^2}[/tex]Multiply -c/a by 4a and add the two fractions
[tex](x + \frac b{2a})^2= \frac{b^2 - 4ac}{4a^2}[/tex]Square Root both sides
[tex]\sqrt{(x + \frac b{2a})^2}= \sqrt{\frac{b^2 - 4ac}{4a^2}}[/tex][tex]x + \frac b{2a} = \pm\frac{\sqrt{b^2 - 4ac}}{2a}}[/tex]Subtract b/2a
[tex]x = \pm \frac{ \sqrt{b^2 - 4ac}}{2a} - \frac b{2a}[/tex][tex]x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}[/tex]And that's the derivation of the Quadratic Formula.
Can someone please check my answer !!!
Answer:
its actually the one on the top right
Step-by-step explanation:
Hope it helps ;)
let me know
Give me some answers on financial maths pls ill braiblist u !
Answer:
Mathematical finance, also known as quantitative finance and financial mathematics, is a field of applied mathematics, concerned with mathematical modeling of financial markets.
Step-by-step explanation:
please mark me brainliest
Answer:
the most common questions, ask form financial maths is simple interest applications , profile & loss, etc
I have to find the value of x
k so I tried, and honestly I'm not sure what I'm doing wrong but I'm not sure how to solve it. If anyone could help that would be lovely :') thank youu
Answer:
x = 25
Step-by-step explanation:
A quadrilateral is inscribed in a circle, so it is a cyclic Quadrilateral.
Opposite angles of a cyclic quadrilateral are supplementary.
Therefore,
3x + 21y = 180°.....(1)
2x + 26y = 180°.....(2)
From equations (1) & (2)
3x + 21 y = 2x + 26y
3x - 2y = 26y - 21y
x = 5y
y = 1/5 x
Plug y = 1/5 x in equation (1)
3x + 21*1/5x = 180
15x + 21x = 180*5
(Multiplying both sides by 5)
36x = 900
x = 900/36
x = 25
Financial advisors recommend putting 20% of your earnings into savings. If a
person saves $700, how much did they earn?
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Ratio and Percentage.
Let the total salary be x, so we get as,
20 % of x = $700
hence, x would be,
(20/100)*x = 700
===> x = 70000/20
===> x = $3500
===> hence the total earning of them is $3500
Write the decimal as a percent.
20= .......?%
Answer:
20%
Step-by-step explanation:
Identify the mapping diagram that represents the relation and determine whether the relation is a function.
{(–3, –6), (–1, –6), (5, –6), (8, –6)}
Which of the following is true?
choice b.
choice c.
choice d.
choice a.
Answer: THE ANSWER IS
Determine if the relation is a function.
The relation is a function.
Find the domain and range.
Domain:
{−3, −1, 5, 8}
Range:
{−6}
Graph.
{(−3,−6), (−1, −6), (5, −6), (8, −6)}
Determine if the relation is linear.
The relation is linear
Find the inverse.
( − 6 , − 3 ) , ( − 6 , − 1 ) , ( − 6 , 5 ) , ( − 6 , 8 )
Step-by-step explanation: IT'S NOT A OR D.. ig
1: Recall that a function from a set to a set is a relation that assigns to each element in the set exactly one element in the set . The set is the domain (or set of inputs) of the function and the set contains the range (or set of outputs).
The general characteristics of functions are:
A. Each element in A must be matched with an element in B.
B. Some elements in B may not be matched with any element in A.
C. Two or more elements in A may be matched with the same element in B.
D. An element in A (the domain) can not be matched with two different elements in B.
________________________________________________
Solving this problem we have:
1. The mapping diagram is represented in Figure 1. As you can see this is a function. Each element in A is matched with an element in B. All the elements in A are matched with the same element in B. So, this fulfills with the definition of function.
2. The mapping diagram is represented in Figure 2. This is not a function. Notice that an element in A (the domain) is matched with two different elements in B, that is, -8 is matched with -6 and 1.
2: #1) This is a function.
#2) This is not a function.
(The mapping diagrams are not present to match to these.)
Explanation:
A function is a relation in which each element of the domain is matched to no more than one element of the range; in other words, no x gets mapped to more than 1 y.
In #1, no x is mapped to more than 1 y, so it is a function. However, in #2, -8 is mapped to both -6 and to 1; this x is used more than once, so this is not a function.
3: what is the primary responsibility of the legislative branch
--------------------------------------------------------------------------------------------
it represents new mexico in foreign affairs
4: Answer:
Option D is correct.
The relation {(-8, -6) (-5, 2) (-8, 1) (7, 3)} is not a function.
Step-by-step explanation:
Given the relation: {(-8, -6) (-5, 2) (-8, 1) (7, 3)}
Domain is the set of all possible inputs of a relation i.e { -8, -5 , -8 , 7}
Range is the set of output values of a function i.e, {-6, 2 , 1 , 3}
The mapping as shown below in the figure:
A function is a relation in which every element of the domain is matched to not more than one element of the range.
In other words, we can say that ,no value of x gets mapped to more than 1 value of y.
Since, from the mapping you can see that the domain value -8 paired with -6 and 1; as x is used more than once.
Therefore, this relation is not a function
Hey, can someone please help me with this?, it’s urgent
Answer:
You need to write a story with those numbers
What is the value of e?
A. 17 B. 48 C. 136 D. 360
48˚.
Because 132˚+e˚=180 (A straight line) e=48˚
Answer:
48.
Step-by-step explanation:
B)48 is the correct answer
Find the length of the missing side leave in simplest radical form
Answer:
choice 4) sq rt 69 ft
Step-by-step explanation:
13^2 - 10^2
169-100 = 69
sq rt 69
PLEASE HELP what does r equal to?
Answer:
R=15 1/6
Step-by-step explanation:
You can add 5 and 1/6 to each side so -5 1/6+5 1/6= 0 so it cancels out therefore on the other side of the equal side you add 5 1/6+10 to get 15 1/6.
Answer:
r=25
Step-by-step explanation:
i did the test lol
5.Regarding the equations below. What is the value of x?
5x + 2y = 4
x – 3y = –23
Answer:
x=−2
y=7
Step-by-step explanation:
5x+2y=4
x−3y=−23
In order to solve by elimination, coefficients of one of the variables must be the same in both equations so that the variable will cancel out when one equation is subtracted from the other.
5x+2y=4,x−3y=−23
To make 5x and x equal, multiply all terms on each side of the first equation by 1 and all terms on each side of the second by 5.
5x+2y=4,5x+5(−3)y=5(−23)
Simplify.
5x+2y=4,5x−15y=−115
Subtract 5x−15y=−115 from 5x+2y=4 by subtracting like terms on each side of the equal sign.
5x−5x+2y+15y=4+115
Add 5x to −5x. Terms 5x and −5x cancel out, leaving an equation with only one variable that can be solved.
2y+15y=4+115
Add 2y to 15y.
17y=4+115
Add 4 to 115.
17y=119
Divide both sides by 17.
y=7
Substitute 7 for y in x−3y=−23. Because the resulting equation contains only one variable, you can solve for x directly.
x−3×7=−23
Multiply −3 times 7.
x−21=−23
Add 21 to both sides of the equation.
x=−2
The system is now solved.
x=−2,y=7
Graph if needed:
The distance to Charlotte is 60 miles more than twice the distance to Wilmington. If w represents the distance to Wilmington, which expression represents the distance to Charlotte?
60w
2w + 60
60w + 2
100w + 60
Answer:
2w + 60
Step-by-step explanation:
60 miles more than twice the distance -
2w + 60 | Multiply the distance to wilmington by two, then add 60 miles.
Solve the equation:
7m+19/2=13
Answer:
1
Step-by-step explanation:
7m+19/2=13
7m +19 = 13 x 2
7m = 26 - 19
m = 7/7 = 1
Another way :
7m+19/2=13
7m = 26/2 - 19/2
7m = 7
m = 7/7 = 1
Both ways r correct !!
I hope im right!!
Select the correct answer.
What is the sum of this geometric series?
64-1
ОА.
259
OB.
1,554
O C.
1,295
OD.
43
Answer:
A.
Step-by-step explanation:
6^(1-1) + 6^(2-1) + 6^(3-1) + 6^(4-1)
= 1 + 6 + 36 + 216
= 259.
Answer:
259
Step-by-step explanation:
Find the value of x in the diagram.
Pls help
Answer:
72
Step-by-step explanation:
Answer:
72 degrees
Step-by-step explanation:
x = 360 - (108 + 121 + 59)
x = 360 - (108 + 180)
x = 360 - 288
x = 72 degrees
Hope that helps!