Sarah used properties of operations to write the following three equivalent expressions to .
A. There are no errors. All of the expressions are equivalent.
B. Expression 1. Sarah can’t apply the Distributive Property if there are three addends.
C. Expression 2. Sarah can’t combine -4 and -6. She must combine -4 with 8.
D. Expression 3. Sarah applied the Distributive Property but incorrectly multiplied 1/2 (-6) .
Answers
Answer:
The answer is d
Step-by-step explanation:
The step expression 3 is incorrect, there should be -3 in place of +3.
What is expression?An expression in maths, a statement involving at least two different numbers (known or unknown) and at least one operation.
Given is an expression, 1/2{-4+8+(-6)}
On solving, we get,
1/2{-4+8+(-6)}
= 1/2(-4) + 1/2(8) +1/2(-6)
= 1/2{-4+(-6)} + 4
= -2+4-3
When we will divide, -6 by 2, we will get -3 and Sarah used +3 which made her expression 3 incorrect.
Hence, The step expression 3 is incorrect, there should be -3 in place of +3.
For more references on expression, click;
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Related Questions
What type of number cannot be written as a fraction p/q , where p and q are integers and q is not equal to zero
Answers
9514 1404 393
Answer:
irrational
Step-by-step explanation:
A number that can be written as the ratio of two integers is called a "rational" number. If it cannot be written that way, it is called an "irrational" number
Irrational numbers cannot be written as a fraction of p/q.
Rational numbers can be written as a fraction of p/q.
If a, b are real numbers and 7a + i(3a - b) = 14 - 6i , then find the values of a and b.
Answers
If a, b are real numbers and 7a + i(3a - b) = 14 - 6i, then find the values of a and b. Therefore, the value of a = 2 and the value of b = 12. 3.
The value of the variables 'a' and 'b' of the complex equation will be 2 and 12, respectively.
What is a complex number?The complex number is the combination of the real part and the imaginary part. Then the complex number is given as a+bi where the value of i is √(-1) and the value of i² is -1.
The equation is given below.
7a + (3a - b)i = 14 - 6i
Compare the real part of the equation, then we have
7a = 14
a = 14 / 7
a = 2
Compare the imaginary part of the equation, then we have
3a - b = - 6
3 x 2 - b = -6
6 - b = - 6
b = 6 + 6
b = 12
The value of the variables 'a' and 'b' of the complex equation will be 2 and 12, respectively.
More about the complex number link is given below.
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At a lightbulb manufacturing plant, 2% of the lightbulbs are found defective. If the plant had 56 defective lightbulbs on a certain day, how many did it manufacture that day?
Answers
Answer: 2,800
Step-by-step explanation: Multiply 56 by 100 then divide it by 2
Answer:
2800
Step-by-step explanation:
2/10 x 56/x
5600÷2= 2800
Your realized income from your primary job is $2,034.24/month. Your fixed expenses are 30% of your primary job’s realized income. You have a second job that pays $9.50/hr with deductions of FICA (7.65%), federal tax withholding (11.5%), and state tax withholding (7.75%). If you want to save enough in the next 10 months to have an emergency fund that will cover 5 months using only 20% of your discretionaries from your primary job, how many hours per month do you need to work at your second job to meet your monthly savings goal?
Answers
Answer:
Step-by-step explanation:50.98%
Answer:
3
Step-by-step explanation:
i just took it lol
Please say why it is the answer
Answers
What is 2.685 rounded to the near tenth
Answers
Answer:
2.7
Step-by-step explanation:
To round 2.685 to the nearest tenth consider the hundredths’ value of 2.685, which is 8 and equal or more than 5. Therefore, the tenths value of 2.685 increases by 1 to 7.
Solve the following quadratic equation
2x²+7x=15
Answers
Answer:
x = - 5 ; x = 3/2
Step-by-step explanation:
Start by subtracting 15 from both sides to get to an equation in standard form: a x^2 + b x + c= 0 so we can use the quadratic formula to solve for "x".
2 x^2 + 7x - 15 = 0
Then:
[tex]x=\frac{-7+/-\sqrt{49-4(2)(-15)} }{4} \\x=\frac{-7+/-\sqrt{169} }{4}\\x=\frac{-7+/-13}{4}\\x =-5\\or\\x=3/2[/tex]
will mark brainliest please yall
Answers
Answer:
c
Step-by-step explanation:
Just think about the question
c look at the picture carefully
you will understand it more clearly
Divide. Write the quotient in lowest terms. 1 7/9÷4/5
Answers
Answer:
2 units and 2/9
Step-by-step explanation:
Answer: 236.25
Step-by-step explanation:
4t^2-6 when t is 3
Math question
Answers
Answer:
30
Step-by-step explanation:
4t^2-6 when t is 3
Since we know t=3, we can substitute that in
4(3^2) - 6
Simplify.
3^2 = 9
= 4(9) - 6
= 36 - 6
= 30
Can someone help????
Answers
Answer:
BAE + ECB + ABC = 180 [ BEING INTERIOR TRIANGLE ANGLES SUM ]
Answer:
180 = Angle ABC + BAE + ECB
180 = Angle ABC + 27 + 21
Angle ABC = 180 -27 -21
Angle ABC = 132
Angle ABC = Angle ADC (opposite angles of a parallelogram are equal).
Angle = 132
Step-by-step explanation:
The speed of light in a vacuum is about 3000000000 meters per second, which can be written as 3 x 10n meters per second. What is n
Answers
Answer:
n = 9.
Step-by-step explanation:
There are 9 0's after the 3 so it's
3 x 10^9.
Find the area of a regular hexagon with the given measurement of 48 inch perimeter
Answers
Answer:
A≈166.28in²
Step-by-step explanation:
Plz name me the brainliest
What is 350,000 as a whole number and a power of ten
Answers
Answer:
350,000 add ten more zeros
Step-by-step explanation:
350,000¹⁰ 350,000 000,0000
I need help finding the reasoning.
Answers
Answer:
3. ASA (Angle Side Angle)
4. CPCTC (Congruent Parts of Congruent Triangles are Congruent)
Step-by-step explanation:
Since angle Q is congruent to angle T, side QR is congruent to side TR, and angle R is congruent to angle R, we can say that the triangles are congruent because of the Angle Side Angle Postulate.
With that being said, the other parts of the triangle are congruent, which is proved by the CPCTC theorem.
#teamtrees #WAP (Water And Plant)
Help me please please
Answers
Step-by-step explanation:
hold on
Hope that helps
NEED ASAP
Which value is the solution for the equation tanx/2=1
pi/2
pi/4
3pi/4
3pi/2
Answers
Answer:
a ) π/2, 4π/3, 3π/2. 5π/3.
Step-by-step explanation:
2 sin t cos t + √3 cos t = 0
cos t ( 2 sin t + √3 ) = 0
Therefore:
cos t = 0, t 1 = π/2, t 2 = 3 π/2
or:
2 sin t + √3 = 0
2 sin t = - √3
sin t = - √3 / 2
t 3 = 4 π/3, t 4 = 5 π/3
Answer:
I think its the first option
Plz help i am timed
Find the missing exponent: 36 = 67.
A.-2
B.2
C.-1/2
D.1/2
Answers
Answer:
b.2
Step-by-step explanation:
thats ur answer
Answer:
B. 2
Step-by-step explanation:
Ms. Sacksteader owns a grocery store. She buys 272 pounds of potatoes for $99. She wants to sell them for twice as much. She makes 9 bags containing 10 pounds each and puts the rest in 5-pound bags. Her family will eat any of the leftover potatoes. Ms. Sacksteader wants to know how many 5-pound bags of potatoes she can sell. How much money will ms. Sacksteader make fir the 5 lb bags
Answers
Answer:
b
Step-by-step explanation:
PLEASE DO IT it is due in 5 minutes
Answers
6*7=42. 6*2=12
b) 21y
11+4+6=21
This is just a made up question I made.
6(2 + 9) - 11
Answers
Answer:
55
Step-by-step explanation:
2+9=11x6=66-11=55
Please help I don't understand this
Answers
Answer:
First equation: No solution
Second Equation: One solution
Third equation: Infinitely many solutions
Step-by-step explanation:
Hope this helped, Have a Great Day!!
Help me please also put in the comments how to mark you brainilest if you get it correct
Answers
Answer:
4: 60
5: 96
Step-by-step explanation:
6 times 10
8 times 12
Answer:
4 is 60
5 is 96
Step-by-step explanation:
Select all the correct answers.
Which expressions are equivalent to this exponential expression?
(52)-3.54
5-4
25
0 0 0 0 0
52
5-1
051
Reset
Reset
Next
Answers
Answer:
first and third and fifth
Step-by-step explanation:
big brain time
Answer:
25 and 5^2
5 to the power of two is 25, because 5 * 5 is 25. Therefore the two are the same.
Step-by-step explanation:
♩ What can I say except your welcome? ♪ ♫
Directions are on the picture. I just need to figure out
Answers
Answer:
Bruh so easy hahahahahaha
Evaluate 4a if a =2 so what is the answer
Answers
Answer:
The answer is 8.
Step-by-step explanation:
hope that helps
4a
4(2)
=8
how much of a 3/4 of cup serving is in a 2/3 cup of yogurt?
Answers
Answer:
8/9
Step-by-step explanation:
could i have brailiest plz it isnt a must tho thx
Pleaseeeee help meeee
I will mark brainliste
Answers
Answer:
24
Step-by-step explanation:
Cross-multiply 8 times 9
Then divide the answer to 8 x 9 by 3
HELP PLEASE!! NUMBER ONE OR TWO PLEASE!
JUST SHOW ME HOW TO DO IT! THANK YOU BUNCHES!xoxo
Answers
Answer:
Step-by-step explanation:
1. 6, ?, ?, ?,102
a0 =6
a1=?
a2=?
a3=?
a4=102
an= a0+n*d
a4= 6+ 4*d=102 so 4d= 102-6=96, so d=96/4=24
d=24
a1 = 6+24=30
a2 =30+24=54
a3 =54+24=78
Are the events "choosing a black card" from a deck of playing cards and
"choosing a 10" mutually exclusive? Explain why or why not.
Answers
Answer:
yes
Step-by-step explanation:
just yes
Answer:
No
Step-by-step explanation:
There are two black 10’s