It is false that the expressions 4x − 2(5x − 1) and 6x + 2 are equivalent expressions
How to determine the true statement?The expression is given as:
4x − 2(5x − 1)
Open the bracket
4x − 2(5x − 1) = 4x − 10x + 2
Evaluate the like terms
4x − 2(5x − 1) = − 6x + 2
− 6x + 2 and 6x + 2 are not equal expressions
Hence, 4x − 2(5x − 1) and 6x + 2 are not equivalent expressions
Read more about equivalent expressions at:
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I dont understand even where to begin on this, please help!
Answer:
-17
Step-by-step explanation:
The average rate of change is synonymous to the slope of a function.
We want to find the average rate of change for the function:
[tex]f(x)=-2x^2-3x-8[/tex]
For the interval [3, 4]
So, we simply have to calculate the values of the function at the endpoints and then find the slope between them.
Our endpoint values are x=3 and x=4. So:
[tex]\begin{aligned} f(3)&=-2(3)^2-3(3)-8 \\ f(3)&=-18-9-8 \\ f(3)&=-35\end{aligned}[/tex]
And:
[tex]\begin{aligned} f(4)&=-2(4)^2-3(4)-8 \\ f(4)&=-32-12-8 \\f(4)&=-52\end{aligned}[/tex]
So, we have the two points (3, -35) and (4, -52).
Now, we can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Calculate the slope:
[tex]m=\frac{-52-(-35)}{4-3}=-17/1=-17[/tex]
Hence, the slope or the average rate of change for our function for the interval [3, 4] is -17.
Solve each equation. y + 20 = 7
Answer:
I Meant y = -13
Step-by-step explanation:
Answer:
y= -13
Step-by-step explanation:
-13 plus 20 is 7
plug the -13 in where the y is and do the equation
-13+20=7
Please help with this
Answer:
8/3
Step-by-step explanation:
(4/-5)/(-3/10)
(4/-5) x (-10/3)
-40/-15
40/15
8/3
plssss i need help rn
Answer:
3
Step-by-step explanation:
(x₁ , y₁) = (-1 , -2) & (x₂ , y₂) = (3 , 10)
[tex]Slope =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{10-[-2]}{3-[-1]}\\\\=\frac{10+2}{3+1}\\\\=\frac{12}{4}\\\\=4[/tex]
m = 4
y - y₁ = m (x - x₁)
y - [-2] = 4(x - [-1])
y + 2 = 4(x + 1)
y + 2 = 4x + 4
y = 4x + 4 - 2
y = 4x + 2
Ivy wants to see 20 birds on her hike. So far, she has seen 8. How many more birds does she need to see.
Answer:
12
Step-by-step explanation:
20-8=12
The sum of two numbers is -14. If the smaller number is subtracted from the larger number, the result is 10. Find the number
Answer:
The sum of two numbers is 78. If four times the smaller number is subtracted from the larger number, the result is 13. What are the two numbers?
Step-by-step explanation:
EQUATION:
x+ y = 78
x-4y = 13
-------------
solve by any method to get:
x = 65
y = 13
Consider the function shown on the graph. Complete the statements to make them true
Answer:
Domain: x ≥ -5
Range: y ≥ -2
Step-by-step explanation:
The domain are the set of x-values of the function that are plotted on the x-axis. The domain of the graph given are x-values that are equal to or greater than -5.
Therefore:
✅Domain: x ≥ -5
The range from the graph given the y-values plotted on the y-axis against their corresponding x-values that are equal to or greater than -2.
Therefore:
✅Range: y ≥ -2
Write a proportion for the situation. Then solve.
One recipe for banana bread says to use 2 cups of honey to make 3 banana breads. How much honey is needed to make 12 banana breads?
Answer:8 cups
Step-by-step explanation:
2/3=x/12
2x12=24
24 divided by 3 = x
X=8
A triangle has its angles marked (2x+10),(x+20) and (x-10).
a) Calculate the value of x
b) Name the triangle
Step-by-step explanation:
x= 40
let the triangle be abc
Determine the horizontal asymptote of the function. If none exists, state that fact. f(x) 5x4 + 2x2 -1 3x5-x+4 Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. The function has one horizontal asymptote, (Type an equation.) and the bottom asymptote is O B. The function has two horizontal asymptotes. The top asymptote is (Type equations.) O C. The function has no horizontal asymptotes.
Answer:
I believe this is A
Step-by-step explanation:
Answer: B
Step-by-step explanation:
3+(-2)-(-3)-(5)+(-1)-(-7)=
Answer:
-1
Step-by-step explanation:
did math on caculator
i need help with this
In the past year, Michael watched 14 movies that he thought were very good. He watched 40 movies over the whole year. Of the movies he watched, what percentage did he think were very good?
Answer:
35%
Step-by-step explanation:
14÷40= 0.35 (35%)
0.35 × 40= 14
please help i will give brainlyest
Answer:
1 (6/6)
Step-by-step explanation:
because 1/3 will turn into 2/6 so when you add them it will be 6/6 :)
Answer:
6/6 which would be simplified as 1
Step-by-step explanation:
First you have to mutiply the second fraction by 2, both numbers so that both of the bottem numbers in both fractions are the same. Then you add the top numbers and the bottem ones stay the same, which would be 6/6
Then if you have an anoying math teacher, like me, who wants you to simplify everything that answer would be one
5
Rectangle WXYZ is located on the coordinate plane. The coordinates for
three of the vertices are listed below. Rectangle WXYZ is dilated by a scale
factor of 2 with a center of dilation at the origin, to form W'X'Y'Z'. What are
the coordinate of vertex X'? *
W (1,6)
Y (3, 2)
z (1,2)
Explain how you determined your answer.
Your answer
Answer:
X' = (6 , 12)
Step-by-step explanation:
Dilation means to stretch or increase with some factor.
We are given the coordinates of rectangle as
W (1,6), Y (3, 2), Z (1,2)
plot this on the Cartesian plane
Coordinate of X is missing
Since the shape is a rectangle so its mid point diagonal intersection point will remain same.
using this the diagonal is
W (1,6) and Y (3,2) are diagonal points
D = ([tex]\frac{3+1}{2} , \frac{6+2}{2}[/tex]) = (2, 4)
Coordinate of X will be
X( x,y) and Z (1,2)
X = ( [tex]\frac{x+1}{2}, \frac{y+2}{2}[/tex]) = (2,4)
this will give x= 3 and y = 6
X ( 3,6)
Now Dilating by the scale factor of 2
Coordinate of X' = X( 2x, 2y)
X' = ( 2*3, 2*6)
X' = (6 , 12)
Name two points on a line that has a
slope of a 5/8
24,10 and 16,5 have slope of a 5/8.
How do you evaluate a division problem
Answer:
Step-by-step explanation:
Not wanting to be trite, i'd still suggest that you use a calculator for routine division. Round off your answer (quotient) to an appropriate number of decimal places.
For example, 2/3 comes out to 0.66666 ... (repeating decimal). You might want to round this off to 2 decimal places: 0.67.
The old fashioned "long division" is another method.
0 . 6
-----------
3 / 2 . 0 0 0
0. 0 0 0
---------------------
1. 8
and so on. You still need to round off the quotient to a suitable number of decimal places.
Brainliest be good peeps Calculate the missing term in each and for 2 its not 6/7 it cant be okay? thanks tho if you try and get that.
proportion.
2/11= /55
36/42= /
9/ = 21/28
6/9= /15
Answer:
Step-by-step explanation:
For 2 it is 6/7. 36 and 42 share a common factor, 6. If you divide each one by 6, 36 becomes 6, and 42 becomes 7. So, number 2 is 6/7.
Non Proportional Relationships
Use the function to make a table of values for the equation.
y= -1/3x-2
no one helps me bruh....
Answer:
I'm sorry I just dont know it....
How many pounds of chocolates that cost $7 per pound must be mixed with 3 pounds of caramels that cost $3.50 per pound to make a candy mix that
cost $5.25 per pound?
Answer:
You know somw things are changed i can't even answer that so please answer it yourself because hahhahaahahaahahhahahahha hello
Step-by-step explanation:
Because i dont know how to answer that ok?! Tell that to ur mom haha
which is irrational?
A. 5/2
B. 5.22
C. 2/5
D. √5/2
Answer:
D
Step-by-step explanation:
Plz mark as brainliest!!!
Frank has a chance of receiving an A grade in statistics, a chance of receiving an A grade in geology, and a chance of receiving A grades in both statistics and geology. Find the probability that he receives an A in statistics or geology (or both). Write your answer as a decimal (not as a percentage).
Complete Question:
Frank has a 41% chance of receiving an A grade in statistics, a 36% chance of receiving an A grade in geology, and a 23% chance of receiving A grades in both statistics and geology. Find the probability that he receives an A in statistics or geology (or both) Write your answer as a decimal (not as a percentage).
Answer:
The probability that he receives an A in statistics or geology (or both) is:
0.54
Step-by-step explanation:
Probability of receiving an A grade in statistics = 41% or 0.41
Probability of receiving an A grade in geology = 36% or 0.36
Probability of receiving A grades in both statistics and geology = 23% or 0.23
Let S = statistics and p(S) = probability of A grade in statistics
Let G = geology and p(G) = probability of A grade in geology
Let p(S and G) = probability of A grades in statistics and geology.
The probability that he receives an A in statistics or geology (or both) is:
= p(S + G) - p(S and G)
= (0.41 + 0.36) - 0.23
= 0.54
Study the equation.
y = x2 - 4x - 77
Write the equation in graphing form (vertex form).
Answer:
y=(x-2)^2-81
Step-by-step explanation:
What value of x makes the equation -0.2(3x – 25) = -0.1x + 7 true?
Answer:
x = -4
Step-by-step explanation:
Ok first let's put the equation.
-0.2(3x – 25) = -0.1x + 7 (first distribute the -.2 to 3x and -25)
-0.6x + 5 = -0.1x + 7 (subtract 5 on both sides)
-0.6x = -0.1x + 2 (add -0.1x on both sides)
-0.5x = 2 (divide by -0.5 on both sides)
x = -4
Hope this helps!!
if owen has a collection of nickels and quarters worth $8.10. if the nickles were quarters and the quarters were nickels, the value would be 17.70 find the number of each coin?
2
what is (567x237)x(467x939)
i will mark brainliest
Answer:
58926938427
Step-by-step explanation:
Answer:
Folow the PEMDAS rules wich show the order in which to do things:
Parenthesis first, then Exponent, then Multiplication/Division and finally Additiion and Subtraction. Therefore we solve whats in parenthesis first then work from there
567x237 is 134,379 and 467x939 is 438,513
now that we solved whats in parenthesis multiply the remaining values:
134,379x438,513=58,926,938,427
58,926,938,427 is correct
Step-by-step explanation:
Line x has a slope of -1/2. Line y is perpendicular to line x. What is the slope of line y?
Answer:
2
Step-by-step explanation:
perpendicular means the opposite inverse of a slope. So -1/2 will become 2/1 or simply 2.
opposite means the sign will change, negative becomes positive and positive becomes negative.
inverse flip numerator and denominator.
[tex]\huge\boxed{Hi\;there!}[/tex]
★Perpendicular lines have slopes that are opposite reciprocals.
This means we take a number, change its sign, and then, flop it over:
[tex]\displaystyle-\frac{1}{2}[/tex]
[tex]\displaystyle\frac{1}{2}[/tex]
[tex]2[/tex]
[tex]\huge\boxed{\mathfrak{Answer:{\boxed{the\;slope\;of\;line\;y\;is\;2}}}}}[/tex]
[tex]\bold{Hope\;it\;helps!}[/tex]
[tex]\rm{Enjoy\;your\;day![/tex]
[tex]\boxed{AmiableTeen:)}[/tex]
Give two reasons why it's impossible to draw triangle PQR m angle Q=103^ m angle R=47^ p = 44 q = 12 , and f = 31
Answer:
It is impossible becuase it would not eqaul the numbers a regular triangles would have. A triangle has to equal a certain number and this number does not make a traingle.
Reason 1: The hypotenuse is invalid, because 44^2 does not equal 12^2 + 31^2.
Reason 2: The angles measures do not correlate properly to their assigned letter sides (at least to me). Additionally, 30 degrees just doesn't make any sense from a logical standpoint.
Solve 3 x 26 below by drawing place value models by typing the answer.
Answer:
Seven tens, eight ones.
Step-by-step explanation:
It's the answer. XD
Answer:
78
Step-by-step explanation:
1s place and tens place are in 78.