Answers
Answer:
1. y = 3x - 5
2. y = -4x + 2
3. y = -3x - 4
4. y = -3x - 6
Step-by-step explanation:
These questions are pretty easy. The only thing you have to do, to turn the equation into slope intercept form, is to solve for y in each equation
All the equations are in standard form, and we need to rewrite them in slope intercept form, so here are the steps
For the first equation: -3y + 9x = 15
We solve for y in the equation
-3y + 9x = 15
1. Subtract 9x from each side to isolate y
-3y + 9x - 9x = 15 - 9x
2. Simplify
-3y = 15 - 9x
3. Divide each term by -3 to get y by itself.
-3y/-3 = 15/-3 -9x/-3
4. Simplify
y = 3x - 5
For the second equation, we do the same proces, we just solve for y
−4x − y + 2 = 0
Step 1: Add 4x to both sides.
−4x − y + 2 + 4x = 0 + 4x
−y + 2 = 4x
Step 2: Subtract 2 to both sides.
−y + 2 − 2 = 4x − 2
−y = 4x − 2
Step 3: Divide both sides by -1
-y/-1 = 4x/-1 -2/-1
y = -4x + 2
For the third equation, we do the same thing too
2y + 6x = -8
Step 1: Subtract 6x to both sides.
6x + 2y − 6x = −8 − 6x
Switch -8 and -6x
2y = −6x − 8
Step 2: Divide both sides by 2.
2y/2 = -6x/2 -8/2
y = -3x - 4
And for the last equation, we do the same thing we did in the second equation
-6 - 3x - y = 0
Step 1: Add 3x to both sides.
−3x − y − 6 + 3x = 0 + 3x
−y − 6 = 3x
Step 2: Add 6 to both sides.
−y − 6 + 6 = 3x + 6
−y = 3x + 6
Step 3: Divide both sides by -1.
-y/-1 = 3x/-1 + 6/-1
y = -3x - 6
Related Questions
What is done wrong in this question please answer it ASAP!!!! Need to submit in 30 min please some one please answer!!!!!
Answers
Answer:
They flipped the wrong fraction it should have been 2/3 as the fraction you divide by is the fraction you flip
Using postulates and/or Theorems learned in unit 1, determine weather ABC ~ AXY. show all your work and explain why the triangles are similar and why they are not.
Answers
Answer:
AX / AB = 6/18 = 1/3
AY / AC = 10/25 = 2/5
They are not similar because the two ratios is not the same.
Step-by-step explanation:
I'm not really sure okay!
Note that [tex]\frac{AX}{AB}=\frac{6}{24} =\frac{1}{4} ,and\frac{AY}{AC}=\frac{10}{35}=\frac{2}{7}.[/tex]
Because the ratio of the lengths of corresponding sides of the triangles are not equal, the triangles are not similar.
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Answer by: Medunno13
https://brainly.com/question/26646936
Multiply. Express your answer in simplest form.
11 1/7 × 4 2/7
Answers
Answer as improper fraction: 2340/49
Answer as mixed number: 47 37/49
What is the slope of the line that passes through the points (6, 7) and (16,22)??? i have been
Answers
Answer:
1.5
Step-by-step explanation:
picture
PLEASE HELP! I cant figure these out!
Answers
"I can't figure this out" means you lack the ability or faith in yourself to figure "this" out. You can't do it.
"I don't figure this out" sounds weird. It's possible to paraphrase it in the past or future tenses, but in the present it's usually said in present continuous, i.e "I'm not figuring this out" (as "to figure out", per se, is a process of sorts) and literally means you do not occupy yourself with figuring "this" out at this moment or generally.
What fraction of the model is shaded?
Answers
Answer:
3/10
Step-by-step explanation:
total boxes = 100
shaded boxes = 30
fraction =30/100
= 3/10
What is the sum of (−4x2+6x) and (7x2−12) ?
Answers
Answer:
3x^2+6x-12
Step-by-step explanation:
a b
36 9
72 18
80 20
Find the constant of proportionality from a to b. Express
your answer as a fraction in reduced terms.
Answers
math the answer i chose was a guess and i need to work it out
Answers
What is the slope of the graphed line
Answers
Answer:
3/9 or 1/3 is the slope
Step-by-step explanation:
yeah
Alice brought 6 container of lemonade each container had 1 1/2 of a cup lemonade how many cups of lemonade did she have in all
Answers
*REMEMBER: 1 1/2 = 3/2*
Arrange them from highest to lowest, need help asap Ty
181,233,255,251,232,167,207,206,256,248,151,118,113,233,253,247,276,162,228,232
Answers
Answer:
113, 118, 151, 162, 167, 181, 206, 207, 228, 232, 232, 233, 233, 247, 248, 251, 253, 255, 256, 276
Step-by-step explanation:
Good luck man :)
Find an expression which represents the sum of (6x – 4) and (-2x + 5) in simplest terms.
Answers
Answer:
4x+1
Step-by-step explanation:
6x-4-2x+5
4x-4+5
4x+1
A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths place. 39. 5 inches 19. 7 inches 15. 5 inches 9. 9 inches.
Answers
Answer:
19.7 inches
Step-by-step explanation:
circumference of a circle = 2πr
62 = 2*22/7 *r
r = 62 * 7 / 44 = 9.86
diameter = 2* r
= 2* 9.86
= 19.7 inches
Pankaj borrows rupees 57,000 to buy a used car and is charged the rate of interest 6% per annum. if the term of his borrowing is 4 years, how much interest does he pay?
Answers
Rs.13680 is the answer.
Step-by-step explanation:-
Given-
• Principal (P) = Rs.57,000
• Rate (r%) = 6%
[tex]→ \frac{6}{100} [/tex]
[tex]→ 0.06[/tex]
• Time (n) = 4 years
Applying Interest formula,
[tex]→In=P \times R \times T[/tex]
[tex]→57,000 \times 0.06 \times 4[/tex]
[tex]→Rs.13680[/tex]
Hence, the interest is Rs.13680
There are 56 female performers in a dance recital. The ratio of men to women is 6:7. How many men are in the dance recital?
Answers
7=56 women, so we dividing the 56 with 7
So for 1 ratio means 8 women
6 must be 6x8 so it's 48 men in total
probability (a) = 25%
probability (b) = 60%
determine probability (a and b)
Answers
Answer:
85%
Step-by-step explanation:
P(a) = 25%=1/4
P(b) = 60%=3/5
P(a and b) = 1/4 + 3/5 = 5+12/20 = 17/20 = 85%
Answer:
The probability of A and B is 85%
Step-by-step explanation:
It is 85% because 25% is 0.25 or 25/100(1/4), and 60% is 0.6 or 6/10(3/5). 0.6+0.25=0.85 and to convert it back to a percentage you need to times 100%. 0.85x100%=0.85x100 with a percentage symbol =85%.
a^2 - ba +ac -cb factorize
Answers
Answer:
[tex](a-b)(a+c)[/tex]
Step-by-step explanation:
Factor each half of the expression separately:
[tex]a^2-ba+ac-cb\\a(a-b)+c(a-b)[/tex]
Since both a and c are being multiplied by a-b, we can combine them to get:
[tex](a-b)(a+c)[/tex]
A square room contains 1000 m3 of air. If the cost of painting its four walls at Rs. 16 per square meter be Rs. 3200, find the height of the room. (Ans: 2.5 m)
Answers
Complete the parametric equations for the given rectangular equation
Answers
Answer:
a) y = 7
b) y =5 sin t
Step-by-step explanation:
how does the graph of g(x) = (x - 3)^3 - 2 differ from the group of f(x) = x^3?
A. g is shifted 3 units right and 2 units up.
B. g is shifted 3 units right and 2 units down.
C. g is reflected across the y-axis.
D. g is rotated 90* clockwise.
Answers
Answer:
B
Step-by-step explanation:
f(x) = x³
g(x) = (x - 3)³ - 2
The inside of the parenthesis represents a horizontal shift
If the number operation being done to x inside of the parenthesis is adding ( or if the number is positive ) then the graph will shift to the left. If the operation being done inside of the parenthesis to x is subtraction ( or if the number is negative ) then the graph will shift to the right.
The operation being done is subtraction therefore it will shift to the right. So it will go 3 units to the right.
the number on the outside works like a y intercept. if it's positive it goes up, if it's negative it goes down. the number is -2 so it will go down 2 units
we can conclude that g is shifted 3 units right and 2 units down
the answer is B
Please help! Image attached!!!!!
Answers
Answer:
x = ln (y)
Step-by-step explanation:
There's two main ways to solve this. When there is no logarithm in the equation you can either take the log of both sides OR change an exponential equation to logarithmic form.
See image.
note: log_2 (2) = 1
log_3 (3) = 1
log_4 (4) = 1
log_5 (5) = 1
if the base and the article are the same then it equals 1
ln e = 1
because ln e means the same thing as log_e
log_e (e) = 1
e is just a number!
If you are changing exponential form to logarithmic form, the base is the same in both forms. The base is the base. The base in exponential form is the base in logarithmic form. The base is the base. The exponent and article basically switch places to change forms.
see image.
please help me with this word problem for math class.
Answers
9 dollars
288/32=9
310.50/34.5=9
360÷4=9
A 440 wire is cut into three pieces the second piece is two times as long as the first the third piece is four times as long as the second how long is each piece
Answers
Step-by-step explanation:
[tex]x \: as \: the \: first \: piece \\ 2x \: as \: the \: second \: piece \\ 4(2x) = 8x \: as \: the \: third \: piece[/tex]
[tex]x + 2x + 8x = 440 \\ 11x = 440 \\ x = \frac{440}{11} \\ x = 40 \\ 2x = 2 \times 40 = 80 \\ 8x = 8 \times 40 = 320 [/tex]
Evaluate.
five over four with 3 as an exponont plz give a fration
Answers
Answer:
[tex] \frac{25}{16} \: \: or \: \: 1\frac{9}{16} [/tex]
Step-by-step explanation:
[tex]( \frac{5}{4} )^{3} = \frac{ {5}^{3} }{ {4}^{3} } = \frac{5 \times 5 \times 5}{4 \times 4 \times 4} = \frac{5 \times 25}{20 \times 4} = \frac{25}{4 \times 4} = \frac{25}{16} = 1 \frac{9}{16} [/tex]
Can someone please help me with this square root problem?
Answers
Answer:
x=14.87
Step-by-step explanation:
What we want to use is pythagoras theorem:
a^2+b^2=c^2, where c is the hypotenuse
10^2+11^2=x^2
221=x^2
x=[tex]\sqrt{221}[/tex]
x=14.866...
x=14.87
Your cellphone company charges a $18 monthly fee, plus $0.11 per minute of talk time. One month your cell phone bill was $70.80. How many minutes did you spend talking on the phone that month?
Answers
Answer:
480 minutes would be the answer
Step-by-step explanation:
Answer:
480 minutes
Step-by-step explanation:
We can write this relationship as [tex]y=0.11x+18[/tex] and then solve for x when y=70.80:
[tex]y=0.11x+18\\\\70.80=0.11x+18\\\\52.80=0.11x\\\\480=x[/tex]
Therefore, you spent 480 minutes talking.
PLEASE Please help meeeeee!!
Question in image*
Answers
a graphing calculator costs $85. the sales tax on the calculator is 8% . what is the total cost of the calculator
Answers
Answer:
The calculator costs $91.80 in total.
Step-by-step explanation:
85*8% = 6.80
85+6.80 = 91.80
2. One bag of fertilizer will cover 400 square feet. Find how many bags should be purchased to cover a garden that is
35 feet by 75 feet.
Answers
35*75 is
2625
2625/400 is
6.5625
Since you cannot have a decimal amount of a bag, you should purchase
(rounding)
7 bags of fertilizer
Answer:
7 bags
Step-by-step explanation:
First thing you need to do is figure out the area of the garden. Area=length×width, so just put in your numbers, 35×75=2625 square feet. One bag covers 400 feet, so you divide the area by 400, 2625÷400=6.5625. You can't buys 6.5625 bags of fertilizer, so you have to go up to the next whole number which is 7.