3(x-5) – 1/2(10x + 10) I don’t understand and I need the answers
Answer:3x-15-5x-5
-2x-20
Step-by-step explanation:
Answer:
-2x-20
Step-by-step explanation:
Expand 3(x-5) : 3x-15
Do not forget there is a subtraction sign in the middle.
Expand 1/2(10x+10) : 5x+5 : 5(x+1)
= 3x - 15 - 5(x+1)
Expand -5(x+1) : -5x-5
= 3x-15 - 5x - 5
Simplify 3x-15-5x-5 by adding like terms: -2x-20
= -2x-20
7. Identify the explicit formula for the sequence given by the recursive formula
Answer: B) f(n) = 30 - 8(n - 1)
Step-by-step explanation:
Explicit formula is of the form: [tex]a_n=a_1+d(n-1)[/tex] where
[tex]a_1[/tex] is the first term d is the difference between consecutive termsGiven: f(1) = 30 --> this represents the first term [tex]a_1[/tex] = 30
f(n - 1) - 8 --> this means the previous term minus 8 thus d = -8
[tex]a_n[/tex] = 30 + (-8)(n - 1)
= 30 - 8(n - 1)
Answer:
B. f(n) = 30 – 8(n – 1)
Step-by-step explanation:
got it right on test
if m+n=0, what is the value of n?
Answer: n= 0 - m
Step-by-step explanation:
To find value of n, isolate it by subtracting m from both sides.
please help i can’t do this and it’s due today please help !!
Answer:
go 3 squares to the side and 2 squares up?
HELP ASAP PLEASEEEEE Use the given D to find the range of each function:
f
g(x)=−3x to the power of 2−4, D={−1, 2, 3}
Answer:
do your own homework
Step-by-step explanation:
1. listen to the teacher
2.ask alexa
dont ask me
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ASAP!!! I WANT MORE THAN 1 PERSON TO ANSWER THIS!!!
Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select ALL of the true statements.
Segment EF is twice as long as segment AB.
True/false
B. Segment CD is twice as long as segment FG.
True/false
C. The measure of angle HEF is twice the measure of angle DAB.
True/false
D. The length of segment EH is 16 units.
True/false
E. The measure of angle BCD is the same as the measure of angle GFE.
True/false
Answer: True, False, False, True, False
Step-by-step explanation:
Since the two quadrilaterals are similar, for question A your answer of True is correct since EF would scale to be twice as long as AB. For the second question the reverse logic applies. For Question C EH is 16 units since 8x2 is 16. For the last question, since BCD does not corresponds to GFE, it is false. Angle BCD has a vertex at point C and GFE has a vertex at point F. Since C does not correspond to F, the angles are not the same.
Simplify
a(2a - 3) + 6(a - 0.5) - (2a^2 - 5)
Answer:
The answer to your question is 3a+2
Answer:
3a +2
Step-by-step explanation:
a(2a -3) +6(a -0.5) -(2a^2 -5)
rewrite to all show terms and operations:
a * (2a -3) + 6 * (a - 0.5) -1 * (2a^2 -5)
distribute:
2a^2 -3a +6a -3 -2a^2 +5
combine like terms:
-3a +6a -3 +5
3a+2
The sum of two numbers is 82. One number is three less than four times the other. Find the two numbers.
Answer:
17 , 65
Step-by-step explanation:
x+ y = 82
y = 4x - 3
=====================
Put the second equation into the first.
x + 4x - 3 = 82
5x = 85
x = 85/5
x = 17
17 + y = 82
x = 82 - 17
x = 65
2. Graph the inequality.
y<- 3x-2
Answer:
(2,-8) (0,-2)
Step-by-step explanation:
Can somebody help me out on this question I would really appreciate it so much . Please and thank you .
Step-by-step explanation:
AB = AC, so mark the two sides with single tick marks.
m∠ACD = 128°, so label the angle 128°.
∠ACB is supplementary to ∠ACD, so:
m∠ACB + m∠ACD = 180°
m∠ACB + 128° = 180°
m∠ACB = 52°
ΔABC is an isosceles triangle, so m∠B = m∠ACB.
m∠B = m∠ACB
m∠B = 52°
Angles of a triangle add up to 180°, so:
m∠A + m∠B + m∠ACB = 180°
m∠A + 52° + 52° = 180°
m∠A = 76°
Which procedures are examples of Descartes’s rules for scientific reasoning?
Keeping a detailed record of the procedure and results of a scientific experiment
Conducting an experiment to confirm the effects of gravity on Earth
Solving an expression in steps using the order of operations
Answer:
keeping a detailed record of the procedure and results of a scientific experiment
conducting an experiment to confirm the effects of gravity on Earth
solving an expression in steps using the order of operations
Step-by-step explanation: Edu
Simplify by combining like terms -10+2(3x-1)+1
Answer: -11+6x
Step-by-step explanation:
Understand PEMDAS method (Operates from left to right)
ParenthesisExponentsMultiplication and DivisionAddition and SubtractionSOLVE:
Given
-10+2(3x-1)+1
Expand parenthesis
-10+6x-2+1
Use PEDMAS method
-10-2+1+6x
-12+1+6x
-11+6x
Hope this helps!! :)
is y=x 4th power
a function
Answer:
Yes.
Step-by-step explanation:
It satisfies our definition of a function. For every x, there is one and only one value of y.
Hope that helped.
What does this equal?
Answer:
87/100
Step-by-step explanation:
Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there are
2
numbers to the right of the decimal point, place the decimal number over
10
2
(
100
)
. Next, add the whole number to the left of the decimal.
If your exponent on your power 10 is positive, is your number larger or smaller than 10?
Answer:
See below.
Step-by-step explanation:
The number maybe less than 10, equal to 10, or larger than 10.
Examples:
A.
exponent: 1/2
10^(1/2) = sqrt(10) (less than 10)
B.
exponent: 1
10^1 = 10 (equal to 10)
C.
exponent: 2
10^2 = 10 * 10 = 100 (larger than 10)
what is the answer to 0.15 = y - 0.45
Answer:
0.6
Step-by-step explanation:
If UV=5x, VW = 8x - 17, and UW = 11x+11, what is UW
Answer:
UW=165
Step-by-step explanation:
UV + VW =UW
5x + 8x-17= 11x +11
13x - 17 = 11x + 11
Subtract 11x and add 17 to both sides:
2x= 28
Divide 2 both sides:
x=14
Plug in x to the equation of UW:
11 (14) +11
165
What is the domain and range for y=x3 – 4x² + x + 6
Answer:
Domain: set of Real numbers
Range{ set of Real numbers
Step-by-step explanation:
Since this is a cubic function, its domain and range are both the set of Real numbers.
The domain of any polynomial function is the set of Real numbers, And as far as the Range, we decide based on its end-behavior: since this is a polynomial with leading term [tex]x^3[/tex], then it has the property of getting to infinitely large values for increasing values of x, and infinitely negative values for decreasing values of x.
curtis divided 27.16 by 2.8 in Got 0.97 is his answer reasonable why or why not
Given :
Curtis divided 27.16 by 2.8 and got 0.97 .
To Find :
Is his answer reasonable why or why not.
Solution :
When we divide 27.16 by 0.97 we will get 9.7.
So, Curtis did a calculation error of decimal and his answer is not acceptable.
Hence, this is the required solution.
An angle in a triangle measures 138 °. The other two angles are congruent. Enter and solve an equation to find the x measure of the congruent angles. An equation is = 180.
Angles congruent with each measure.
Answer:
26 degrees
Step-by-step explanation:
180-138=52
52/2=26
how many fourths are in one third?
Answer:
there is one fourth in one third
Step-by-step explanation:
1/3 < 1/2
one third is less than two fourths (one half)
1/3 > 1/4
but it is more than one fourth, so one fourth fits in one third.
27 mm converted to in m
1.063 inches
0.027 meters
hope it helps!
I need help with this question
What’s the value of the 8 in 2,983,785
Answer:
ten and ten thousands
Step-by-step explanation:
The first 8 is put in the 2nd place for the right meaning that it is in the tens place, the second 8 is in 5th place from right which means that it is at ten thousands place, Hope this answer helped.
(Multiple choice)
The quotient of a number and 17 is 118.82.
A. it can be solved with division property of equality.
B. It can be solved with the multiplication property of equality
C. The equation should x/17=118.82
D.x=7
E. X=2020
Answer:
C. The equation should x/17=118.82
Step-by-step explanation:
We know that
Dividend ÷ Divisor = Quotient
Dividend/Divisor = Quotient
From the question, we are told that:
The quotient of a number and 17 is 118.82
Let us represent the unknown number as x = Dividend
17 = Divisor
Quotient = 118.82
Hence,
x / 17 = 118.82
Cross Multiply
x = 17 × 118.82
x = 2019.94
The correct answer = Option C. The equation should x/17=118.82
For an indirect proof, what must first be assumed to prove that LaTeX: \angle X∠ Xis a right angle?
Answer:
If the lines that forms < X are perpendicular, it can be assumed that it is a right angle.
Step-by-step explanation:
An indirect proof of an angle is an assumption about the value of the angle that can be made by mere inspection and some considerations.
< X = right angle = [tex]90^{o}[/tex]
A right angle is one that is equal to [tex]90^{o}[/tex]. As an indirect proof, if the lines that forms the angle are perpendicular; then it can be assumed to be a right angle. Because perpendicular lines are at right angle to one another.
Answer:
verified answer isn't right
Step-by-step explanation:
i dont know the answer but just thought i should let people know
reasoning can you name a real number that is represented by √-36? Explain
Your question has been heard loud and clear
√-36 is by no means a real number. This is because square roots can only be positive in nature.
Eg: -2*-2 = 4 and 2*2 = 4 , so √4 = -2 or 2 but √-4 doesnt exist.
So , √-36 also does not exist while √36 exists.
√-36 , we can however represent it as an imaginary number as 36i
Thank you
What is the value of x, when -25(x - 4) = -55(x - 10)?
Answer:
-25(x - 4) = -55(x - 10)
-25x+100= -55x+550
-25x+55x=550-100
30x=450
x=15
Answer:
x= 15
Step-by-step explanation:
Step 1- Distribute into the parenthesis
-25x-(-25)4= -55x-(-55)10
Step 2- Multiply to simplify
-25x+100= -55x+550
Step 3- Add -55x to both sides
-25x+100= -55x+550
+55x +55x
Step 4- Subtract 100 to both sides
30x+100= 550
-100 -100
Step 5- Divide both sides by 30
30x= 450
30 30
x= 15
the daily cost of hiring a plumber to work x hours on a repair project can be modeled using linear function. the plumber charges a fixed cost of $80 plus and additional costs of $45 per hour. the plumber works a maximum of 8 hours per day.
for one day of work, what is the maximum daily cost that the plumber will charge?
Answer:
15 dollars
Step-by-step explanation:
The pay on your paycheck and the hours you worked. what is the DEPENDENT quantity?
Answer:
The pay on your paycheck
Step-by-step explanation:
A dependent quantity is something that changes as the independent quantity ( in this situation, its the hours worked) changes.
The amount of pay is determined by the number of hours you worked meaning it is DEPENDENT on the hours worked