Which expressions are equivalent to the given expression?
Answer:
It is the 2nd answer choice 4 check 5
Step-by-step explanation:
Answer:
The 2nd and 5th expression.
I am having a hard time with simultaneous equations specifically the elimination method, i want to know when do we subtract and when do we add, so if u know how its done plz help im confused
Example :
3x-2y =7
4x+y = 13
Plz solve it too-
Answer:
The solution to these two equations is (3, 1)
Step-by-step explanation:
So for the elimination method, we are basically multiply each equation by a factor that would allow us to cancel them out..
We could rewrite the equations as the following to make the elimination method easier:
-2y + 3x = 7
y + 4x = 13
We could multiply the second equation by positive 2 in order to cancel out the y from the first equation when we add.
-2y + 3x = 7
2y + 8x = 26 ---> Now we have 11x = 33, when we simplify, we have x = 3.
Now to find our y value in order to find the solution, we would just plug in our x value and solve for y. **We can use either equation to find the answer for this...
-2y + 3x =7.
-2y + 3(3) = 7
-2y + 9 = 7
-2y = -2
y = 1.
We can double check our answer by plugging in both x and y values into the second equation.
4(3) + 1 = 13.
12 + 1 = 13, so we are correct.
The solution to these two equations is (3, 1)
Find the product. Estimate to check if the answer is reasonable.
195x4
Answer:
780
Step-by-step explanation:
Estimate: 200 x 4 = 800
Answer:
780
Step-by-step explanation:
The product of 195×4
=780.
The answer is 780.
Pls i need help with my math
Find the value of each symbol in the multiplication table below:
Answer:
Step-by-step explanation:
Chili = 3
lime = 1
salt = 9
avocado = 6
guacamole = 18
find the value of 5/22×(3/7×(-6/11))and (5/22×3/7)×(-6/7) compare them what do you observe
this is the solution.the diff is the order of the number and the number.
Answer:
After comparing we observe both equations have different answers.
Step-by-step explanation:
Find the value of [tex]\frac{5}{22}\times (\frac{3}{7}\times (-\frac{6}{11}))[/tex] and [tex](\frac{5}{22}\times \frac{3}{7})\times (-\frac{6}{7})[/tex]
Solving [tex]\frac{5}{22}\times (\frac{3}{7}\times (-\frac{6}{11}))[/tex]
[tex]=\frac{5}{22}\times (\frac{3}{7}\times -\frac{6}{11})\\=\frac{5}{22}\times (-\frac{18}{77})\\=\frac{5}{22}\times -\frac{18}{77}\\=\frac{5}{11}\times -\frac{9}{77}\\=-\frac{45}{847}[/tex]
Now solving [tex](\frac{5}{22}\times \frac{3}{7})\times (-\frac{6}{7})[/tex]
[tex]=(\frac{15}{154})\times (-\frac{6}{7})\\=\frac{15}{154}\times -\frac{6}{7}\\=\frac{15}{77}\times -\frac{3}{7}\\=-\frac{45}{539}[/tex]
After comparing we observe both equations have different answers.
PLZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Simplify the following expressions using the properties of exponents.
Use "^" to indicate exponents. For example, x^5 to represent x^5.
a.
(2^−4)^−4 divided by 24 x 22
b. This problem has been started for you. Finish simplifying the problem.
2a^−1×(4a^2)^−2 divided by 4a^0
=
2a^−1×4^−2 a^−4 divided by 4a ^0
=
2 divided by 4a^0xa^1x4^2 a^4
PLZZZZZZZZZZZZZZZZZZ SHOW WORK
Answer:
A. = 60074.6 (The 6 is repeating forever)
Step-by-step explanation:
May I have brainliest please? :)
Solve 3q - 5 = 13 for q.
⇒ Answer:
[tex]q = 6[/tex]
⇒ Step-by-step explanation:
Lets solve!
[tex]3q -5 = 13[/tex]
⇒ First we add 5 to both sides.
[tex]3q -5 = 13[/tex]
[tex]+ 5[/tex] [tex]+ 5[/tex]
[tex]3q = 18[/tex]
⇒ Next we divide both sides by 3.
[tex]\frac{3q}{3} = \frac{18}{3}[/tex]
[tex]q = 6[/tex]
⇒Woohoo! Brainliest Appreciated! Hope I helped!
Answer:
q = 6
Step-by-step explanation:
To solve for q, isolate the variable.
3q - 5 = 13
Move -5 to the right side and perform the inverse operation. Since you were subtracting on the left, add on the right.
3q = 13 + 5
3q = 18
The last step is to isolate the variable by dividing 3 by 18. The reason you divide on the right is because you were multiplying on the left, and you need to perform the inverse operation.
q = [tex]\frac{18}{3}[/tex]
q = 6
Samantha claims that 4x + 2 is equivalent to the expression x + 17 + 3x − 15. Check whether Samantha’s equivalent expression is correct using x = 2. Samantha is incorrect because when using x = 2, the resulting values in both expressions are different. Samantha is incorrect because the expressions cannot be checked using x = 2. Samantha is correct because when using x = 2, the resulting values in both expressions are equal.
Answer:
The correct answer is c
Answer:
Answer is c
Step-by-step explanation:
Your welcome
Given the figure below, find the measure of
Answer:
24°
Step-by-step explanation:
m∠DCE = 180° - 90° - 41° - 25° = 24° (angles on a straight line are supplementary)
This is a question on angles . If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
-4 (-3 + 5 + (-2)) show all steps
Answer:
0
Step-by-step explanation:
-4(-3 + 5 + (-2))
-4(-3 + 5 -2)
-4 • 0
0
Answer:
= 0
Step-by-step explanation:
-4(-3 + 5 +(-2 ))
get rid of the "( )"
-4 (- 3 + 5 - 2)
calculate the sum
-4 x 0
anything times 0 = 0 so the answer is;
0
Choose the value to make the equation true.
70
.
9
÷
Choose...
=
7
.
09
Step-by-step explanation:
= 7 . 09
Billy jarred 3.87 liters of jam after 3 days. How many days does Billy need to jar 15.48 liters of jam in all?
Answer: 12 days
Step-by-step explanation:
3.87/3=1.29 liters of jam in 1 day
1.29*12=15.48 liters in 12 days
Answer:
12 days
Step-by-step explanation:
(256x^256)^3/8 please answer to this question
Answer:
The answer is 8x^96.
Hope this helps and if you could mark me as brainliest. Thanks!
8x⁹⁶ is the simplified form of the expression.
What is a polynomial expression?Polynomial is made up of two terms, namely Poly (meaning “many”) and Nominal (meaning “terms.”). A polynomial is an expression composed of variables, constants, and exponents, combined using mathematical operations such as addition, subtraction, multiplication, and division (No division operation by a variable). Based on the number of terms present in the expression, it is classified as monomial, binomial, and trinomial. For example P(x) = x2-5x+11
Given here, the expression as (256x²⁵⁶)^³/₈
=(256)^³/₈ × (x²⁵⁶)^³/₈
=(2⁸)^³/₈ × (x³²)^³
=2³ × x⁹⁶
Hence, the answer is 8x⁹⁶
Learn more about Polynomials here:
https://brainly.com/question/11536910
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Write a recursive formula for the arithmetic sequence:
7,4,1,-2
Answer:
N - 3
Step-by-step explanation:
It is a series of -3 so:
7 -3 = 4
4 - 3 = 1
1 - 3 = -2
So:
N-3
where N is the present value in the sequence.
How do I distribute 9 - (8r +5)
The - part confuses me
Answer:
you distribute the - not the 9
Step-by-step explanation:
so your problem would be
9-8r-5
( act as if there is a one in front of the negative sign)
hope this helps :)
Which expression has exactly 2 terms
A.5y2
B.A+b+2
C.3x+y
D.4n
Answer: C
Step-by-step explanation:
Mary sees 40 elephants and 15 baby elephants at the zoo. What is the ratio of elephants to baby elephants?
Answer:
8:3
Step-by-step explanation:
You divide them both by 5.
Answer:
40:15 = 8:3
Step-by-step explanation:
This is the answer because:
1) Since there are 40 elephants and 15 baby elephants, the answer would be 40:15, but we want to simplify the ratio. In order to simplify the ratio, just divide each number by 5:
40 ÷ 5 = 8
15 ÷ 5 = 3
8:3
Therefore, the answer is 8:3.
Hope this helps! :D
Sebuah LSM akan mengirim 5 utusan untuk mengikuti suatu konferensi. Kelima utusan tersebut terdiri dari 3 wanita dan 2 pria. Kelima orang tersebut akan dipilih dari pengurus harian yang terdiri dari 6 wanita dan 3 pria. Peluang memilih ke lima utusan tersebut adalah
Plz help!!!!!!!!!!!!!!!!!!!!!
Answer:
c = 5n
Step-by-step explanation:
The cost is equal to the price times the number of notebooks
5. What are the next three terms in the sequence 2.0, 3.5, 5.0,
6.5, ...?
A. 8.5, 9.0, 11.5
C. 8.25, 11.75, 14.5
B. 8.0, 9.5, 11.0
D. 7.0, 8.5, 9.0
Answer:
C
Step-by-step explanation:
it increases by 1 and a half each time
Write a quadratic function whose graph has the given characteristics.
vertex: (3, 5)
point: (2, –1)
help i need it badly
Answer:
x^2+3x-10 that should be your answer
Answer:
x^2+3x-10
Step-by-step explanation:
you have to expand the polynomial using the foil method.
Find the equation of the linear function represented by the table below in slope-intercept form.
Answer:
y= 8x +7
Step-by-step explanation:
slope-intercept form:
y= mx +c, where m is the gradient (or slope) and c is the y-intercept.
Since it is a linear function, the gradient of any 2 points would be equal.
[tex]gradient = \frac{y1 - y2}{x1 - x2} [/tex]
Thus, gradient of the line
[tex] = \frac{39 - 23}{4 - 2} \\ = \frac{16}{2} \\ = 8[/tex]
Subst. m=8 into the equation:
y= 8x +c
To find the value of c, substitute a pair of coordinates.
When x=0, y= 7,
7= 8(0) +c
c= 7
Thus, the equation of the linear function is y= 8x +7.
Simplify
(35)2
3-2
312
39
38
310
Answer: The answer is 3^12.
Step-by-step explanation:
Answer:
3^12
Step-by-step explanation:
POINTS plus will mark BRAINLIEST for the correct answer
Answer:
I believe the answer is 9
Step-by-step explanation:
The most balloons she has is 180 and she can make 20 animals with that so 180/20=9
The sum of five times a number and seven is 107. Find the number.
Answer:
20.
Step-by-step explanation:
Let the number be x.
5x + 7 = 107
5x = 107 - 7
x = 100 / 5
x = 20
Hope this helped!
need help on 5 & 6 please !!!
Step-by-step explanation:
Q5. Let the cost of 28subscriptions be $s.
Words: 1subscription/28subscription = $21/$28
Numbers: 1/28 = 21/s
Cross multiply and solve: 1 x s = 21 x 28
s = 588
Answer with label: $588
Q6.
Words: 2inches/3.6inches = 2.5hours/bhours
Numbers: 2/3.6 = 2.5/b
Cross multiply and solve:
2 x b = 2.5 x 3.6
2b = 9
b = 4.5
Answer with label: 4.5hours
1300 people attended a baseball game. 936 of the people attending supported the home team, while 364 supported the visiting team. What percentage of people attending supported the home team?
Answer:
72
------------------------------------------
100⋅936=
\,\,\color{orange}{1300}\cdot\color{blue}{x}
1300⋅x
Cross multiply
\frac{93600}{1300}=
1300
93600
=
\,\,\frac{1300x}{1300}
1300
1300x
Divide both sides by 25
\color{blue}{72\%}=
72%=
x
Simplify
segmant ce and segment fh are parellel lines
Answer:
is this really a question. I don't understand it you need an explanation of what you're asking us.
Step-by-step explanation:
verify experin mentally that the vertically
opposite angles are equally.