Which pair of rectangles are similar
Answers
Answer:
Its 2nd one
Step-by-step explanation:
189÷90=2.1
81÷90=0.9
Related Questions
Solve [4x +2] =6Select one:O a. 1b. 2O c. 1 or -2O d. -1 or 2
PLEASE HELP I WILL GIVE EXTRA POINTS AND BRAINALIST to the first person
Find the value of r in (4, r), (r, 2) so that the slope of the line containing them is −53Question 7 options:a) −17b) -7c) 7d) 17
BRAINIEST TO WHOEVER RIGHT PLZ HELP
3x + 4y = −20
A) multiply the first equation by 4 and subtract the second equation
B) multiply the first equation by −4 and add the second equation
C) add 8 times the first equation and −2 times the second equation
D) multiply y by 4 in the first equation and subtract the second equation
Answers
Answer:
Option D) multiply y by 4 in the first equation and subtract the second equation
Step-by-step explanation:
we have
2x+y=-10 ----> first equation
3x+4y=-20 ---> second equation
Verify each case
case A) multiply the first equation by 4 and subtract the second equation
so
(2x+y)*4=-10*4 ------> 8x+4y=-40
[8x+4y=-40]-[3x+4y=-20] -----> 5x=-20 -----> x=-4
This step is correct
case B) multiply the first equation by -4 and add the second equation
so
(2x+y)*-4=-10*-4 ------> -8x-4y=40
[-8x-4y=40]+[3x+4y=-20] ----->-5x=20 -----> x=-4
This step is correct
case C) add 8 times the first equation and −2 times the second equation
so
(2x+y)*8=-10*8 ------> 16x+8y=-80
(3x+4y)*-2=-20*-2 ----> -6x-8y=40
[16x+8y=-80]+[-6x-8y=40] ----->10x=-40 -----> x=-4
This step is correct
case D) multiply y by 4 in the first equation and subtract the second equation
so
2x+4y=-10
[2x+4y=-10]-[3x+4y=-20] -----> -x=-10+20 -----> x=-10
This step is incorrect
NOT produce a system with the same solution
Answers
Answer:
18.84
Step-by-step explanation:
C=2πr
d=2r
Solving for C
C=πd=π·6=18.84ft
Zero
One
Infinitely many
Answers
Answer:
The number of solutions of the equation is:
One.
Step-by-step explanation:
We are asked to find the number of solutions of the equation:
3x+6= -1-3+4x
(
We know that a expression has a unique or one solution if it gives a single value of x after solving the expression.
and we obtain a no solution when the equation gives a false result i.e. the left and right hand side of equality are different.
and infinite many solution if the left and right hand side of equality is same but we can't get a fix value of x )
Now on solving the expression we have:
3x+6= -4+4x
i.e. 4x-3x=6+4
i.e. x=10
Hence, we get a unique value of x.
Hence, the equation has one solution.
6+1+3=4x-3x
x=10
Gustavo used an experiment where the data is qualitative.
Gustavo used an experiment where the data is quantitative.
Gustavo used a simulation where the data is qualitative.
Gustavo used a simulation where the data is quantitative.
Answers
Answer:
The answer is C i just took the test
Step-by-step explanation:
Answers
v=(bh)/3
mulitply both sides by 3
3v=bh
divide both sides by b
(3v)/b=h
answer is B
Answers
Answer:
7.8 * 10^7
Step-by-step explanation:
Group coefficients together and exponents together to multiply numbers in scientific notation.
(7.8 * 1) (10^3 * 10^4)
Multiply 7.8 times 1.
7.8 * (10^3 * 10^4)
Use the power rule a^m * a^n = a^(m+n) to combine exponents. So, add 3 and 4
7.8 * 10^7