One question I need help with, I would really appreciate the help.

Answers

Answer 1

Answer:
At first, she had +2y in the upper and -5y in the lower.

She multiplied the upper by 5 . Then she had +10y in the upper.

She should multiply the lower by 2 . Then she'll have -10y
there. She'll be able to add the two equations, and the 'y's will
go away. She'll be left with a single equation with only 'x' in it,
and she can solve that one for the value of 'x'.

Related Questions

Which of the following is the equation of a line parallel to the line y=3x+2, passing through the point (10,1)?A. 3x - y=29 B. 3x + y=29 C. -3x-y=29 D. 3x + y=29
Subtract: 5 – 3 1⁄3
The diameter of circle C is 18 cm. Chord AD is the same length as a radius. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. a) what are the measures of the angles BDA and DBA?. b) What is the sine of angle DBA? c) Find the length of arc AB to the nearest hundredth. d) How does the length of arc AD compare to the length of arc AB? e) If FE = 1/2 BD, then what is the degree measure of arc EF?
What is 4 1/6 minus 2 5/6
the observatory is made of a 3 foot tall cylinder and half of a sphere. what is the volume of the space inside the observatory?

Find the term to term rules for the following sequence-

2,6,18,54,162

Answers

Answer:

Essentially, to find the next term in this sequence, the number must be multiplied by 3.

So, the term to term rules for this sequence would be N x 3

Answer:

$a_n=2*3^(n-1)$

Step-by-step explanation:

The formula for a geometric sequence is $a_n=a_1*r^(n-1)$ where $a_n$ is the $n$ th term of the sequence, $a_1$ is the first term, and $r$ is the common ratio.

Since each term is being multiplied by 3, this is our common ratio.

Therefore, our geometric sequence formula is $a_n=2*3^(n-1)$

Factorise p^-6p+8

Explanation would be helpful too. Thank you so much.

Answers

assuming you meant
p^2-6p+8
then
find what 2 numbes multiply to get 8 and add to get -6
numbers are -2 and -4
(p-2)(p-4)

(p-4)(p-2)

The 2 numbers have to add up to make the -6
-2+-4=-6
and they have to multiply together to make 8
-2 x -4 = 8

hope this helps!

For f(x) = 3x +1 and g(x) = x2 – 6, find (f- g)(x).

Answers

Answer:

$\boxed{\sf (f-g)(x) = -{x}^(2) + 3x + 7}$

Given:

$\sf f(x) = 3x + 1 \n \sf g(x) = {x}^(2) - 6$

To find:

$\sf (f - g)(x) = f(x) - g(x)$

Step-by-step explanation:

$\sf \implies(f - g)x = f(x) - g(x) \n \n \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (3x + 1) - ( {x}^(2) - 6) \n \n \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (3x + 1) + (- {x}^(2) + 6) \n \n \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 3x + 1 - {x}^(2) + 6 \n \n \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = - {x}^(2) + 3x + 1 + 6 \n \n \sf \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = -{x}^(2) + 3x + 7$

Why are circles so important to constructions?

Answers

Its a way to find a range of length without using exact measuments (if your using a compass)
Also you need to know constructions for the weekly tests so your school can get more money

Which of the following points does not lie on the graph of y = log3x?(0, 1)
(27, 3)
(1, 0)

Answers

Answer:

(0,1) doesn't lie on the graph.

Step-by-step explanation:

We have been given the logarithmic equation $y=\log_3(x)$

We can check which point lie on the graph of the given function by substituting x coordinates in the equation and find the corresponding y coordinate.

For x = 0

$y=\log_3(0)\n\ny=\log_30$

The value of log 0, is undefined, Hence, we'll not get a real value for this x value.

Hence, (0,1) doesn't lie on the graph.

For x = 27

$y=\log_3(27)\n\ny=\log_33^3\n\ny=3\log_33\n\ny=3$

Hence, (27,3) lie on the graph.

For x = 1

$y=\log_3(1)\n\ny=0$

Hence, (1,0) lie on the graph.

Therefore, (0,1) doesn't lie on the graph.

(27, 3)
(1, 0)

Working;
Substituting the value of x;
x=27
y=log81
=1.9084
x=1
y=log 3
y=0.4771

What is 0.11625 written as a percent?

Answers

Answer:

11.625 %

Step-by-step explanation:

to convert the given number into percentage we need to multiply the given number to 100 to get the required percentage

0.11625 × 100 = 11.625 %

hence, the required percentage will be equal to 11.625 %.

Any fraction number can also be converted into percentage by just multiplying it by 100.

To convert that number into percent we should multiply that number with 100 or move the decimal place to right at two points.
0.11625 *100 =11.625 %
If it helped please mark as the brainliest answer. Hope it helped you.