function or not a function
Answer:
Function
Step-by-step explanation:
Passes vertical line test
Can you have a triangle with sides 8, 9, and 11?
What is the solution to the equation square root 2x + 6 - square root x + 4 = 1
raAnswer:
x = 5
Step-by-step explanation:
Original equation = [tex]\sqrt{2x+6}[/tex] - [tex]\sqrt{x+4}[/tex] = 1
Remove square roots
[tex]x^{2}[/tex] + 2x +1 = 4x +16
Subtract 16 from both sides
[tex]x^{2}[/tex]+ 2x +1 = 4x +16
-16 -16
---------------------------
[tex]x^{2}[/tex] + 2x- 15= 4x
Subtract 4x from both sides
[tex]x^{2}[/tex] + 2x - 15 - 4x= 4x - 4x
= [tex]x^{2}[/tex] - 2x - 15 = 0
THIS EQUATION HAS 2 rational roots. {x1,x2} = {5,-3}
CHECK THAT THE FIRST SOLUTION IS CORRECT (5)
Original equation, root isolated, after tidy up
[tex]\sqrt{2x+6}[/tex] = [tex]\sqrt{x+4}[/tex]
Plug in 5 for x
[tex]\sqrt{2\cdot (5)+6}[/tex] = [tex]\sqrt{(5)+4+1}[/tex]
Simplify
[tex]\sqrt16}[/tex] = 4
Solution checks !!
Solution is: x = 5
CHECK THAT THE SECOND SOLUTION IS CORRECT (-3)
Original equation, root isolated, after tidy up
[tex]\sqrt{2x+6}[/tex] = [tex]\sqrt{x+4}[/tex]
Plug in -3 for x
[tex]\sqrt{2\cdot (-3) +6}[/tex] = [tex]\sqrt{(-3)+4+1}[/tex]
Simplify
[tex]\sqrt{0}[/tex] = 2
Solution does not check
0 ≠ 2
So, the answer is x = 5
Hope this helps!
What are the equation and slope of the line shown on the grid?
A) x = 6; slope is undefined
B) y = 6; slope is 6
C) y = 6; slope is - 1/6
D) x = 6; slope is zero
Answer:
A.
Step-by-step explanation:
The equation and slope of the line shown on the grid is A) x = 6; slope is undefined
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and the equation of a line in slope-intercept form is
y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
Given, A-line that is parallel to the y-axis.
If we take any two pairs of coordinates let's take (6, 0) and (6,4).
So, slope(m) = (y₂ - y₁)/(x₂ - x₁) = (4 - 0)/(6 - 6) = 4/0 which is undefined.
ANother way of defining it is we know the slope is tan(theta) which is undefined at 90° the angle this line is making with +ve x-axis.
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PLEASE HELP-WILL GIVE BRAiNLLEST-AND IF U KEEP HELPING ME ON MY PROBLEMS ILL GIVE YOU BRAILLEST-so now- Find the unit rate.
Kenny reads
4 3
- page in - minutes. Kennys unit rate is_______ page per min
9 5
Answer:
ok so the first one is .4 pages per minute and the second is .6
Step-by-step explanation:
because 4/9= .4
and 3/5= .6
14/17 rounded to the nearest hundredth
Answer:
i am not to sure about this one
Step-by-step explanation:
i will give brainliest Select the expression equivalent to
(3x + 2) + (−6x + 3)
Question 1 options:
-3x+5
3x+5
9x+5
-9x+5
what is (x+3)^3 expanded?
Answer:
x^3+9x^2+27x+27
Step-by-step explanation:
As an estimation we are told 5 miles is 8 km.
Convert 56 km to miles.
Answer:
35
Step-by-step explanation:
Find the value of x for which f (x) = 7.
f (x) = 2x – 15
Answer:
At x = 11 is when f(x) = 7.
Step-by-step explanation:
Six less than 3/4 of a number is the same as the number. Find the number.
Answer:
-24
Step-by-step explanation:
A floor for a 4-meter square shed must be fabricated. The area of the floor is _____.
The correct answer is B. [tex]16 m^{2}[/tex]
Explanation:
In a flat squared surface such as the one of a shed, the area is calculated by multiplying two sides. In this case, the side is 4 meters long, and therefore the formula to calculate the area is A (area) = side x side
A = 4 meters x 4 meters
A= (4 x 4) (m x m)
A= 16 [tex]m^{2}[/tex]
This means the correct answer is B because this shows the correct number of meters in the area (16) and using square meters or [tex]m^{2}[/tex] is the correct unit to express the area or measurement of a surface.
xy-y if x = 5 and y = 4
1.621
2.50
3.16
Answer:
3. 16
Step-by-step explanation:
If you plug x and y in, your equation will be: (5)(4)-(4)
Use the Order of Operations to multiply 5 • 4 = 20, making the equation 20-4 = 16
The measure of angle LGHF is?
(-3x+4)+(8x-5)
A.) 5x - 1
B.) 5x - 9
C.) 11x - 1
D.) 11x - 9
E.) none of these
Answer:
answer is 5x-1
its A
hopes this helps u
1) Write the word sentence as an equation Then'solve. A number divided by kp -9 is -16
A cashier checks the price of a television that is marked $230, because it usually rings up at $250. What percentage is the discount?
please answer quick
Answer:
20%
Step-by-step explanation:
is the discount please mark me brainlest
Write Algebraically: Thirty less than negative fifteen times a number is greater than 54 more than negative three times a number?
Answer
-15x - 30 > -3x + 54
Explanation
Let's break this sentence down.
Thirty less than means [whatever goes before] minus 30.
Negative fifteen is -15.
Times a number means multiplying by a number. The number will be a variable. And in this case, the variable will be x.
Is greater than means more than.
Negative three is -3.
Times a number means multiplying by a number (in case you forgot or get confused, I wrote it again). That number will be a variable; x. This is the same number.
Now let's write down the equation.
Let's break both sides of the inequality, meaning the left side of 'greater than' and the right side.
The left side says this; "thirty less than negative fifteen times a number."
So let's write this.
So thirty less is minus 30. You are subtracting from "negative fifteen times a number."
Negative fifteen is -15... times a number is -15x.
So the left side of the inequality is -15x - 30.
The right side says this; "54 more than negative three times a number."
54 more than means adding 54 meaning + 54.
And you are adding 54 to "negative three times a number."
Negative three is -3, times a number is -3x.
So the right side of the inequality is -3x + 54.
So the full inequality is -15x - 30 > -3x + 54.
What value of m makes the equation –7(0.5m + 3) = 4.5m – 7 true?
A. m = -0.57
B. m = -1.75
C. m = 1.25
D. m = 28
Answer:b
Step-by-step explanation:
easy
Which graph represents the inequality x>6?
HELP IM BEING TIMED!!!!!!!
Please help!
Answer all three questions below (a.b.c.) according to the given diagram. 20 points B 12 4 6 AA СР R 7 a. Name the corresponding angles: L = L , L_=__, L = 2 b. Name the corresponding side lengths: & & & c. Find the measure of sides PQ and PR
Step-by-step explanation:
Angle A = Angle P, Angle B = Angle Q, Angle C = Angle R.
AB : PQ, BC : QR, CA : RP.
PQ = 8 and PR = 14.
help please thank you
Answer:
i believe it is d 57.8 and b
Step-by-step explanation:
hope this helped if im wrong sry u_u
AHHHHHH HELPPPPPPPPPPPPPP TIMED I’ll give brainliest
Answer:
D. (2, 6)
General Formulas and Concepts:
Algebra I
Solving systems of equations by graphingStep-by-step explanation:
The solution set of the systems would be where the 2 lines intersect. We see from the graph that our 2 lines intersect at (2, 6). Therefore, our solution set would be D. (2, 6).
The radius of a circle is 8 kilometers. What is the length of a 90° arc?
The length of a 90° arc is 4π kilometers.
What is Circle?Circle is a two dimensional figure which consist of set of all the points which are at equal distance from a point which is fixed called the center of the circle.
Given that,
radius of the circle = 8 kilometers
Arc length can be found by the formula,
Arc length = 2πr (x/360°) where r is the radius, x is the measure of the arc in degrees.
Substituting,
Arc length = 2π × 8 (90°/360°)
= 4π
Hence the length of the arc is 4π kilometers.
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The art club at a school organized a contest between homeroom classes.
Each student in the winning class will receive the same amount of candy.
There are exactly 19 students in the winning class.
The art club has 1,068 pieces of candy.
What is the maximum number of pieces of candy each student can receive?
Answer:
56 pieces of candies at maximum.
Step-by-step explanation: What you want to do is just divide both numbers, giving you 56.2105263158. The decimals will give you the wrong answers, so taking them out, would be the best, and also the decimals aren't divisible to the 19 kids. When you take the decimals out, you should get 56. To prove my point, doing 56 x 19 = 1064 candies, and the 4 other is not able to be split to 19 kids. So there 56 is your answer!
-1/2(10+1/4) 7th grade work
Answer:
-5.125
Step-by-step explanation:
Answer:
-41/8 ?
Step-by-step explanation:
MAX is equiangular. If m<M = (7x + 4)⁰ m<A = (12x - 36)º, and m<X = (10x – 20)⁰, find x.
Answer:
x = 8
Step-by-step explanation:
Since the triangle is equiangular then the 3 angles are congruent and of measure 60°.
Equate any of the 3 angles to 60 and solve for x, that is
7x + 4 = 60 ( subtract 4 from both sides )
7x = 56 ( divide both sides by 7 )
x = 8
The value of [tex]x[/tex] is required.
The value of [tex]x[/tex] is [tex]8[/tex]
The triangle MAX is equiangular so all the angles are equal
The angles are
[tex]\angle M=7x+4[/tex]
[tex]\angle A=12x-36[/tex]
[tex]\angle X=10x-20[/tex]
As it is equiangular
[tex]\angle M=\angle A\\\Rightarrow 7x+4=12x-36\\\Rightarrow 4+36=12x-7x\\\Rightarrow 40=5x\\\Rightarrow x=\dfrac{40}{5}\\\Rightarrow x=8[/tex]
The value of [tex]x[/tex] is [tex]8[/tex]
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Mr Holland determines that he gives away $800 each month. If he gives away 16% of his budget, how much is his overall budget?
Answer: His overall budget is $5000
Step-by-step explanation:
I need help with geometry
Answer:
im sorry
Step-by-step explanation:
i need help on a test and i need points gl though
which one is it please thx
Answer:
it is the last option
Step-by-step explanation:
keep change flip (that's the rule)
2/3 * 6/1 = 12/3 = 4
Hope this helps lmk if you need more assistance. Happy Holidays!!
