Which sentence illustrates the commutative property for addition? (1) (a+b)+c=a+(b+c)
(2) a(b+c)=ab+ac
(3) a+0=a
(4) a+b=b+a
Answer:
the answer is 2a(b+c)=ab+acAnswer:
The 4th option is correct. a+b = b+a
Step-by-step explanation:
please help and give easy to understand explanation.
Answer:
ok send the work now I am ready
Answer:
I’m not trying to mooch off points, just want to know where the flipping question is
Step-by-step explanation:
Would help if could
Lori is solving the equation 4x2 + 5x - 6 = 0 using the quadratic formula. Which
expression shows the correct numbers substituted into the quadratic formula to
solve?
Answer:
[tex] \frac{ - 5 + \sqrt{( {5})^{2} } - 4(4)( - 6) }{ 2(4)} [/tex]
What is the constant of proportionality in miles per hour?
a.) 0.85 miles per hour
.85
b. 55 miles per hour
IS112.15
c. 60 miles per hour 4
120
d. 51 miles per hour
15
75
8
9514 1404 393
Answer:
(d) 51 miles per hour
Step-by-step explanation:
The constant of proportionality can be found by dividing the distance by the time. It is convenient to choose a time that makes this division simple. We choose 30 min = 1/2 hour.
(25.5 mi)/(1/2 h) = 2(25.5) mi/h = 51 mi/h
The constant of proportionality is 51 miles per hour.
Work out an expression for the nth term of this sequence. 3, 11, 19, 27, …
Answer:
8n-5
Step-by-step explanation:
Find the difference between the numbers, +8 so 8n then subtract the diffference from the first number so 3 - 8= -5
The expression will be 8n - 5
Help plz. I will give brainilest!
Answer:
4.35
Step-by-step explanation:
Make the numerator improper, by doing 8x4+3 which equals 35. And then drag that whole number to the front and slap a decimal between the whole number (4) and your new numerator (35)! Which would be: 4.35
A pigeon was sitting 15 feet from the base of a telephone pole and flew 25 feet to reach the top of the pole. How tall is the telephone pole?
solve pls brainliest
Answer:
a) -10
b) +150
Answer: (a.) -50/5=-1 (b.) 5*30=+150
Step-by-step explanation:
(a.) each stock went down by -10x5=-50
(b.) 5x10=50. 50x3=150
half way I was doing this it got deleted
I really need help someone?
Answer:
$11.80
Step-by-step explanation:
5x.90=4.5
63.5-4.5=59
59/5=11.8
guys pls answer my question i am very confused
Solve This
[tex]6 {}^{2} \times 6 {}^{3} [/tex]
[tex]( \sqrt{103} [/tex]
Hey there!
Question #1
6^2 × 6^3
6^2
= 6 × 6
= 36
6^3
= 6 × 6 × 6
= 36 × 6
= 216
36 × 216
= 7,776
6^2 × 6^3
= 6^5
• Question #1 answer: 7,776 or 6^5 either answer should work because both answers are equivalent
Question #2
√103
= 10.148892
• Question #2 answer: 10.148892
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
Answer:
[tex] \small \sf \: 6 {}^{5} [/tex]
Alternate form: - 7776.
Step-by-step explanation:
1). 6² × 6 ³.
6² = 6 × 6 = 366³ = 6 × 6 × 6 = 2166² × 6³ = 36 × 216 = 7776.
Or,
6² × 6³
= [tex] \sf \small \: 6 {}^{2 + 3} [/tex]= [tex] \small \sf \: 6 {}^{5} [/tex]Work out the percentage change to 2 decimal places when a price of £15 is decreased to £14.
Answer:
The total change is £21.02 from the original amount of £78.98. Therefore, the percentage change is directly related to the original amount.
so the answer in a percentage is 15.22%.
Step-by-step explanation:
Answer:
the answer is $ 15 is decreased to $ 14 = 6.67 percent.
Step-by-step explanation:
Mason goes to a store an buys an item that costs xx dollars. He has a coupon for 30% off, and then a 7% tax is added to the discounted price. Write an expression in terms of x that represents the total amount that Mason paid at the register.
THE TOTAL AMOUNT THAT MASON PAID IS 549
first distribute, then combine like terms 5(2x+7)+4x
Answer:
14x+35
Step-by-step explanation:
10x+4x=14x
5*7=35
Answer:6x+12
Step-by-step explanation: combine like terms.
Dan has 2 photo albums. Each photo album 8 pages. Dan can fit 4 pictures on each page. How many pictures can Dan fit in the albums?
Answer:
64
Step-by-step explanation:
8 x 4 = 32
32 x 2 = 64
The number of pictures can Dan fit in the albums are 64.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
Given that, Dan has 2 photo albums. Each photo album 8 pages. Dan can fit 4 pictures on each page.
Here, the number of pictures
= 2×8×4
= 64
Therefore, the number of pictures can Dan fit in the albums are 64.
Learn more about the multiplication here:
https://brainly.com/question/1562995.
#SPJ2
PLZ HELP ME ON THIS QUESTION GUYS THANK YOU IF U HELP ME 30 POINTS
Answer:
The value of the expression is 0.5.
Step-by-step explanation:
To evaluate, we need to do order of operations.
To solve, we start with the parenthesis because they come first in the order of operations.
-1+3[(10-12)³/(-16)]
-1+3[-2³/-16]
Now we do the second thing in the order of operations, which is to simplify the exponents.
-1+3[-8/-16]
Now we do the third thing left to do, which is to do division and multiplication from left to right.
-1+3[0.5]
-1+1.5
Now we do the last thing left to do, which is to do addition and subtraction from left to right.
0.5
So the value of this expression is 0.5.
3 2/3 +2.3 (theres a bar on top of the 3 in 2.3 ) =
A. 5
B. 5 2/3
C. 6
D. 6 1/3
Find the distance Between points (3,7) and (-3,4).
Answer:
the distance is 3√5 !
Step-by-step explanation:
Answer:
Since the points form a triangle, you can use Pythagorean theorem to solve this.
Side A is 3 Units, and side B is 6. The letters do not matter when corresponding them to the sides.
So Pyth Theorem = a^2 + b^2 = c^2
And c^2 is the distance we must find
So a^2 = 9
b^2 = 36
So 36 + 9 = 45
To find C, you must root c^2
So sqrt of 45 is 6.7
The distance between points (3,7) and (-3,4) is 6.7 units.
Write an
equation of the line that passes through each pair of points.
(-3,9), (-3,-5)
Answer:
since slope(m) = y2 -y1/x2- x1
-5 - 9/ -3 - (-3)= -14/0
m = -14/0 (undefined)
using the formula
y-y1 = m(x -x1)
y - 9 = -14/0(x - (-3)
y-9 = -14/0(x + 3)
0 = -14( x+3). (cross multiplication)
0 = -14x - 42
14x = -42
x = -3( equation of the line)
Use rulers and compasses to draw a line which is perpendicular to line AB at point C
Answer:
Draw a line AB
Take a point C on AB
Fix the tip of compass at C and with a fix radius, cut AB on both sides of C
Mark those points D and E
Fix the tip of compass on D, and with the same radius, draw an arc above C
Do the same with E
Those two arcs will intersect at a point, mark the point F
Make a line passing through both C and F
Line CF is perpendicular to AB
Seven plus seven equal to
Answer:
the answer is 14
Step-by-step explanation:
7+7=14
I hope this help
Answer:
14
Step-by-step explanation:
solve pls brainliest
Step-by-step explanation:
(a) 46-(-6)= 52
(b) -6+11= 5
What is the equation of the line that passes through the point (2, 1) and has a
slope of 3/2?
Given :-
A line having a slope of 3/2 passes through (2,1) .To Find :-
The equation of the line .Answer :-
According to the question ,
m = 3/2 Point = (2,1)We know Point slope form of the line as ,
y - y¡ = m ( x - x ¡ )Substitute ,
y - 1 = 3/2 ( x - 2 ) y - 1 = 3/2x - 3/2*2y - 1 = 3/2x - 3 2( y -1) = 3/2x *2 - 3*22y - 2 = 3x - 6 3x - 2y -4 = 0Hence the equation of the line is 3x -2y-4=0 .
Answer:
Step-by-step explanation:
Use the form y = mx + b and plug in your known point
y = 3x/2 + b
1 = 3(2)/2 + b
1 = 3 + b
b = -2
y = 3x/2 - 2
we can use a plotting calculator to verify our result.
cscy-siny=cosy(coty)
Step-by-step explanation:
[tex]\csc y - \sin y = \dfrac{1}{\sin y} - \sin y[/tex]
[tex]\:\:\:\:\:\:\:\:=\dfrac{1 - \sin^2y}{\sin y}[/tex]
[tex]\:\:\:\:\:\:\:\:= \dfrac{\cos^2y}{\sin y}[/tex]
[tex]\:\:\:\:\:\:\:\:=\cos y \left(\dfrac{\cos y}{\sin y}\right)[/tex]
[tex]\:\:\:\:\:\:\:\:= \cos y \cot y[/tex]
Please please answer super easy
Answer:
Step-by-step explanation:
You need y by itself on one side of the equal sign and x and the y intercept on the other side.
4x + 2y = - 12 Subtract 4x from both sides
2y = -4x - 12 Divide by 2
2y/2 = -4x/2 - 12/2
y = -2x - 6
Note: y also must be plus. x can be either plus or minus
m = - 2
b = - 6
pls answer the question important
Step-by-step explanation:
no they are not parallel
Answer:
not equal
Step-by-step explanation:
its not parallel because sum of angles of alternate angle are not equal.
Which number is larger, 4.7 or 4.7777 77777? Explain your answer.
Answer:
4.7777 is larger
Step-by-step explanation:
4.7777 can be approximately written as 4.8
4.8 > 4.7
4.7777 > 4.7
Find the slope of the line that passes through (7,5) and (4, 9)
Answer:
-4/3
Step-by-step explanation:
(9-5)/(4-7)
4/-3
-4/3
Aaron's car used 3- gallons of gas when
he drove it 60 miles. How many miles
does his car get per gallon?
Answer:
His car gets 20 miles per gallon.
Step-by-step explanation:
1. 60 = 3x (divide by 3)
2. 20 = x
Therefore, the car uses 20 miles per gallon.
A box is formed by cutting congruent squares from the corners. Find the maximum volume of a box made out of a 14 inch by 18 inch cardboard. Find
the lenth of the side of the cut out square. Round to the nearest hundredth place "hint: you may have to change your window in desmos.
Jinches
a. Maximum volume
b. length of side of square: x=
inches
Answer:
Step-by-step explanation:
V = x(14 - 2x)(18 - 2x)
V = (14x - 2x²)(18 - 2x)
V = (252x - 28x² - 36x² + 4x³)
V = 4x³ - 64x² + 252x
V' = 12x² - 128x + 252
0 = 3x² - 32x + 63
x = (32 ±√(32² - 4(3)(63))) / (2(3)
x = (32 ± √268) / 6
x = 8.06 inches, which we ignore as this would mean we have no material left at all in the 14 inch dimension.
or
x = 2.60488... 2.60 inches
Vmax = 0.60(14 - 2(2.60))(18 - 2(2.60)) = 292.86478... = 292.86 inches³