Answer:
where is the question
Step-by-step explanation:
u do not have a question so there us nothing to answer
10. A student solves the following problem:
Problem:
2 (x-3) + 3x = 19
2x - 6 + 3x = 19
(2x + 3x) - 6 = 19
5x - 6 - 19
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
5x - 6+ 6 = 19+ 6
5x = 25
X = 5
What property justifies step 4?
a. Commutative Property of Addition
c. Multiplication Property of Equality
b. Addition Property of Equality
d. Substitution
Answer:
Step-by-step explanation:
A.
Option A is correct. The property that justifies step 4 based on the calculation is the Commutative property of addition.
Equations are expressions separated by an equal sign.
Given the equation:
2(x-3) + 3x = 19
Expand the parenthesis using the distributive law
2x - 2(3) + 3x = 19
2x - 6 + 3x = 19
Collect the like terms
2x + 3x -6 = 19
Step 4
Since 2x+3x = 3x+2x = 5x (according to the commutative law), the expression becomes:
5x-6 = 19
Step 5
Add 6 to both sides
5x-6+6 = 19+6
5x = 25
x = 25/5
x = 5
Hence the property that justifies step 4 based on the calculation is the Commutative property of addition.
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pls help me on this!
Answer:
5 2/3
Step-by-step explanation:
So because it is a mixed number that means you want to have a whole plus a fraction. You keep the 5 as the whole and because 2/3=.666666. You add them together making 5 2/3.
Solve for y: y/3=h.
Answer:
y= 3h
Step-by-step explanation:
make y the subject of the formular
(2x + 1)2
Factor 2x3 + 4x2 + 2x completely.
(2x + 1)2
O 2x(x2 + 1)
O 2x(x + 1)2
[tex]2x^3+4x^2+2x\\\\GCF = 2x\\\\2x(\frac{2x^3}{2x}+\frac{4x^2}{2x}+\frac{2x}{2x})\\\\2x(x^2+2x+1)\\\\2x(x^2+2(x)(1)+1^2)\\\\2x(x+1)^2[/tex]
Hope this helps, have a blessed and wonderful day!
Answer:
C. 2x(x + 1)2
the next one is
Find the roots of the polynomial function f(x) = 2x3 + 4x2 + 2x ?
C. x = 0, x = –1 with multiplicity 2
Step-by-step explanation:
did review on edg2020
(3.9 x 10^-3) + .0026 in scientific notation
The value of (3.9 × 10⁻³) + 0.0026 in scientific notation is 6.5 × 10⁻³.
What is Decimals numbers?Decimal numbers are numbers which has basically a whole number part and a fractional or decimal part after a point called decimal point.
Decimal number system describes the base 10 number system.
Given are numbers 3.9 × 10⁻³ and 0.0026 added together.
We have to do it in scientific notation.
0.0026 can be written as 2.6 × 10⁻³.
Adding these two numbers together, and taking the common term,
(3.9 × 10⁻³) + (2.6 × 10⁻³) = (10⁻³) (3.9 + 2.6)
= (10⁻³) (6.5)
= 6.5 × 10⁻³
Hence the answer of the sum of (3.9 × 10⁻³) + 0.0026 is 6.5 × 10⁻³ in scientific notation.
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help!!!!!!!!!!!!!!!!!
Answer:D
Step-by-step explanation:s aThe function is always increasing because wether the value of x increases or decreases, the value of f(x) is increasing as well
Cayenne bought 20 pencils for 1.60 dollars at that rate how much would 35 pencils cost
2 1/2 =1 2/3 ÷y
please help.... it would mean alot & its worth 100 points!
Answer:
y= [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
change them to improper fractions
2 1/2= 5/2 1 2/3=5/3
divide y from 5/3:
[tex]\frac{5}{2} y=\frac{5}{3}[/tex]
mutiply each side by 2/5
y=10/15=2/3
here is your answer. change them to improper fractions
2 1/2= 5/2 1 2/3=5/3
divide y from 5/3:
mutiply each side by 2/5
y=10/15=2/3
The expression equals ___ ?
The expression 2T+3F+4M+10E
gives the number of points a student earns on a test when the student correctly answers T true-false questions, F fill-in-the-blank questions, M multiple-choice questions, and E extended-response questions. Which statement is NOT true?
Answer:
Got my points back
Step-by-step explanation:
Answer:
The term 10E represents the total number of points earned from 10 extended-response questions.
Step-by-step explanation:
Have a good day :p
what is the measure of the following angle?
AOD
Answer:
it's 80.
Step-by-step explanation:
120-40= 80
....
Answer: 80
Step-by-step explanation:
hope this helps
f(x)=√8+2
Find the range
Answer:
what does f or x mean
Step-by-step explanation:
Please help if you can. And please explain
Answer: Choice B) 0.63
==============================================
Work Shown:
1.1 is 174% of what number
1.1 = 174% of what number
1.1 = 174% of x
1.1 = 1.74*x
1.74x = 1.1
x = 1.1/1.74
x = 0.632183908045977 which is approximate
x = 0.63
Solve the equation x2 + + 7x= 30
O A. x= 15 and x= -2
0 B x=-6 and x = 5
0 C x= -10 and x= 3
O D. x= 10 and x= -3
Answer:
x^2+7x=30
x^2+7x-30=0
Here a=1,b=7 and c=-30
Now,
Discriminant(D)=b^2-4ac
=7^2-4×1×(-30)
=49+120=169
By applying Quadratic formula
x=-b+- root over b^2-4ac÷2a
=-7+- root over D ÷ 2×1
=-7 +- root over 169 ÷2
=-7 +- 13 ÷2
Now,
Either x=-7+13÷2=6÷2=3
Or x=-7 -13 ÷2=-20÷2=-10
Hence, ans is (C) x=-10 and x=3
A basketball player attempted 15 field goals. He scored on 40 percent of his attempts. How many field goals did the player score? NEED HELP BADLY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 10/21/2020
Answer:
He scored 6 field goals out of 15
Step-by-step explanation:
40% converted into a decimal is 0.4. "Of" means multiply. So you do 15 times 0.4 and get 6.
Which algebraic expression is equivalent to the expression below? (2x + 14) + (8x - 5) *
10x + 19
16x - 3
24x - 5
10x + 9
The slope of a vertical line is....?
a) undefined
b) not enough information given
c) horizontal
d) 0
Which of the following statements is true about the three quadrilaterals? (5 points)
Group of answer choices
N and O are similar and congruent.
M and N are similar and congruent.
M and O are similar but not congruent.
M and N are similar but not congruent.
Answer:
3
Step-by-step explanation:
M and O are similar but not congurent is
Answer:
The right one would be D
Step-by-step explanation:
Please help I’ll give brainiest!!
Answer:
-1
Step-by-step explanation:
A statistics teacher was interested in the relationship between you and the number of days students waited to start a project
and the score that project received (out of 100 points). Information was collected on several students and was used to
obtain the regression equation = -3.64x + 96.5, where x represents the number of procrastination days and 9 is the
predicted grade. What is the predicted grade of a student who procrastinated for 2 days?
0 25.96
0 85.58
O 89.22
0 103.78
Answer:
C. 89.22
Step-by-step explanation:
hope it helps!
edge 2020
Evaluating functions please help :)
Answer:
-28
Step-by-step explanation:
In order to find h(-6) plug in -6 for any "x" in the equation.
So the equation will be h(-6)=5(-6)+2
I just plugged this into my calculator
Hope this is correct and helps! :)
QUICK HELP ME 25 POINTS The formula for perimeter of a rectangle is given by: P=2l+2w Rearrange the formula to solve for l
HELP PLZ
Answer:
l = [tex]\frac{P - 2w}{2}[/tex]
Step-by-step explanation:
2l + 2w = P
2l = P - 2w
l = [tex]\frac{P - 2w}{2}[/tex]
Find the midpoint of AB if A(-3. 8) and B(-7. -6)
The midpoint of AB is (-5, 1).
To find the midpoint of a line segment AB, we average the x-coordinates of the two endpoints and the y-coordinates of the two endpoints.
Given that A has coordinates (-3, 8) and B has coordinates (-7, -6), we calculate the midpoint as follows:
x-coordinate of midpoint = (x-coordinate of A + x-coordinate of B) / 2
= (-3 + -7) / 2
= -10 / 2
= -5
y-coordinate of midpoint = (y-coordinate of A + y-coordinate of B) / 2
= (8 + -6) / 2
= 2 / 2
= 1
Therefore, the midpoint of AB is (-5, 1), where -5 is the x-coordinate and 1 is the y-coordinate. This means that the midpoint is equidistant from points A and B, dividing the line segment AB into two equal parts.
For more Questions on the midpoint
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8x-4 can you guys help me solve for x
Answer:-32
Step-by-step explanation:
8x4=32 add a negative sign
Simplifiy 2x(x + 5)
Answer:
2x^2 + 10x
Step-by-step explanation:
Answer:
2x^2+10x
Step-by-step explanation:
I need the answer ASAP
Answer:
i just did this in class a week ago and i think it was option c
Step-by-step explanation:
I neeeed help someone help meeeeeee
The sign at the right shows the costs for a deep-sea fishing trip. How much will the total cost be for 1 adult, 2 children, and 1 senior citizen to go on a fishing trip? Use mental math.
DEEP-SEA FISHING
Adults.....$41
Children (12 & under)....$35
Seniors (65 & up)......$39
Answer:
$150
Step-by-step explanation:
1 adult ($41) + 2 children ($35+$35) + 1 senior citizen ($39)
Diana usually drives at average rate of 30 mph. If she drives for 2 hours with the speed that is 10 mph more than usual, what distance will she cover?
Answer: 80 miles
Step-by-step explanation:
10mph + 30mph = 40 mph
Distance = Speed × time
D = 40m/h × 2 h
D = 80 m
send help please lol i need help
Answer:
The answer is B
Step-by-step explanation:
The equation equals 2970 and the answer B also equals 2970.
help me its due today and its literally 12 am
Answer:You can have 3 tables of 15 people at each table, 15 tables of 3 people at each table, 5 tables of 9 people at each table, or 9 tables of 5 people at each table.
Hope this helps!
Step-by-step explanation: