Answer:
(2, - 5 )
Step-by-step explanation:
Given the 2 equations
y = - 3x + 1 → (1)
4x + y = 3 → (2)
Substitute y = - 3x + 1 into (2)
4x - 3x + 1 = 3
x + 1 = 3 ( subtract 1 from both sides )
x = 2
Substitute x = 2 into (1) for corresponding value of y
y = - 3(2) + 1 = - 6 + 1 = - 5
solution is (2, - 5 )
3(-4+4)+5n=2n what are the steps for finding n
Answer:
1. Move the variables to one side: 3(-4+4) = -3n
2. Distribute. You will end up with 0 = -3n
3. Divide both sides by -3. n = 0
Step-by-step explanation:
Answer:
n=0
Step-by-step explanation:
3(-4+4)+5n=2n
first distribute
-12+12+5n=2n
combine like terms
5n=2n
subtract 2n on both sides
3n=0
divide by 3 on both sides
n=0/3
which is also equal to
n=0
If cos θ > 0, which quadrant(s) could the terminal side of θ lie?
Answer:
I and IV
Step-by-step explanation:
cosine is positive/greater than 0 in quadrants I and IV. Its just a rule of the unit circle.
Can remember by All Star Trig Class
meaning all the trig funtions are positive in quadrant I
sin is positive in II
tan is positive in III
and cos is positive in IV
-30÷5=
bunun cevabı 6 mı??
Answer:
-6
Step-by-step explanation:
-30÷5=-6
this is the ans
What is 5 / 1? Explain.
(Just trying to give away easy points haha)
Answer:
5/1 = 5
Step-by-step explanation:
because 5/1 equals 5.
Just finding the area!
Answer:
160yds²
Step-by-step explanation:
A = ((a + b) ÷ 2) × h
A = ((19 + 13) ÷ 2) × 10 = 160
good luck, i hope this helps :)
Ms. Meyer washed
2/7
of her laundry. Her son washed
1/4
of it. Who washed most of the laundry? How much of the laundry still needs to be washed?
Solve this on paper. Then check your work on Zearn.
write your answer as a fraction ill mark you !
Answer:
15/28 loads of laundry needs to be washed.
Step-by-step explanation:
2/7 + 1/4
=
2 × 4 + 1 × 7
7 × 4 + 4 × 7
=
8/28 + 7/28
=
8 + 7/ 28
=
15/28
Could someone answer all 5 questions please
Answer:
3=111
Step-by-step explanation:
solve for x...................................................................................
Answer:
x = 36°
Step-by-step explanation:
x + 20° + 4x = 200° { exterior angle of a triangle is equal to the sum of two opposite interior angles }
5x = 200° - 20°
5x = 180°
x = 180° / 5
x = 36°
Hope it will help :)
determine the slope and y-intercept from following the equation: y= 3/2x + 3
Answer:
Slope is 3/2 and y-intercept is +3
Step-by-step explanation:
slope = m
y intercept = b
Slope is 3/2 and y-intercept is +3
Consider the line x-2y=-1 What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?
Answer:
slope of line that is parallel is 1/2
slope of line that is perpendicular is -2
Step-by-step explanation:
parallel lines have the same slope
perpendicular lines have slopes that are opposite and reciprocal
x - 2y = -1
-2y = -x -1
y = 1/2x + 1/2
the coefficient of the 'x' term represents the slope
Need help on this please help
Answer:
204
Step-by-step explanation:
The area of the top triangle = 5*12/2 = 30
The area of the bottom triangle = 30
The hypotenuse of the top triangle is
5^2 + 12^2 = hypotenuse^2
25 + 144 = hypotenuse^2
169 = hypotenuse squared.
hypotenuse = sqrt(169)
hypotenuse = 13
Now the back face = 13 * 8 = 104
The area of the left side rectangular face = 5*8 = 40
The total area = 30 + 30 + 104 + 40 = 204
What is the value of -2(x + 5)?
Answer:
-2x-10
Step-by-step explanation:
hope it hhhhheeeeeellllpppp you
Which value of x is in the domain of (photo)
A. X = 2
B. X = 0
C. X = 1
D. X = -2
Answer:
X=1
Step-by-step explanation:
Anna has a recipe for pumpkin bars. She uses 2 ½ cups of sugar for every 3 pans of pumpkin bars. AJ wants to follow the same recipe. He will make h pans of pumpkin bars using g cups of sugar. Which of these equations best represents the relationship between h and g?
Answer:
[tex]2.5h = 3g[/tex]
Step-by-step explanation:
Given
[tex]Sugar = 2\frac{1}{2}\ cups[/tex]
[tex]Bars = 3\ pans[/tex]
Required
Determine the equation for h pans and g cups
We have that:
[tex]Sugar = g[/tex]
[tex]Bars = h[/tex]
To do this, we make use of the following equivalent ratios.
[tex]Bars : Sugar = Bars : Sugar[/tex]
So, we have:
[tex]3 : 2\frac{1}{2} = h : g[/tex]
Express fraction as decimal
[tex]3 : 2.5 = h : g[/tex]
Express as fraction
[tex]\frac{3}{2.5} = \frac{h}{g}[/tex]
Cross multiply
[tex]2.5h = 3g[/tex]
No options were given. So, I will stop here
i need help on my math i wasn't there that day my class did it
Answer:
(a-4)x-b+9
Step-by-step explanation:
hope this helps
A 2-column table with 9 rows. The first column is labeled year with entries 1970, 1975, 1980, 1985, 1990, 1995, 2000, 2005, 2010. The second column is labeled pounds of trash with entries 3.25, 3.25, 3.66, 3.83, 4.57, 4.52, 4.74, 4.69, 4.44.
The table shows the average number of pounds of trash generated per person per day in the United States from 1970 to 2010. Use the statistics calculator to calculate the mean and median. Round the answers to the nearest hundredth.
Answer:
The median of a list of numbers is the center number when you order the numbers from least to greatest.
Since there are 9 numbers; the center number is the fifth number. Four numbers below and four numbers above. Median is 4.44 and the mean or average is 4.09.
Step-by-step explanation:
List in order from least to greatest
(3.25, 3.25, 3.66, 3.83) 4.44 ( 4.52, 4.57, 4.69, 4.74) Notice 4 numbers below 4.44 are lower and 4 numbers above 4.44 are higher. So the median number is 4.44
For the mean you add all the number and divide the sum by the number of numbers you have. We know you have 9 numbers from the first part. So, add the numbers from the list (3.25 +3.25+ 3.66 + 3.83 + 4.44 + 4.52 + 4.47 + 4.69 + 4.74) = 36.85 Then divide by 9 = 4.09
LE{LLEASE HELP THIS IS duE IN AN HOUR
Tony and tiffany collect semi-precious stones at the rockhound ht tiffany paid $38 for 9 pounds of snowflake obsidian. at the solid rock shop, tony paid 19 for 3 poi\unds of the same crystal. what id each person pay per pound and who made the better buy
Are the triangles below obtuse, acute, or right?
Answer: A is right. B is acute, C is obtuse, and D is right.
Step-by-step explanation:
The right triangles have the square in the corner.
Triangle C is a little bit bigger than a right triangle.
Triangle B is acute because its smaller than a right triangle.
Solve the following system of equations
1/× + 3/y = 3/4
3/× - 2/y = 5/12
Put the solution as an ordered pair (x,y)
Show your work
Answer:
(4,6)
Step-by-step explanation:
i used a ca lC uLator
Krutika was thinking of a number. Krutika halves the number and gets an answer of 86. Form an equation with x from the information.
PLEASE SOMEONE HELP!!!!
The two objects are the same height, and the cylinder is just wide enough for the the box to fit inside with all 4 vertical edges of the box touching the inside of the cylinder. if the box of pasta fits 8 cups of rice, estimate how many cups of rice will fit inside the cylinder. Expalin or show your reasoing
Answer:
The answer is below
Step-by-step explanation:
The volume of a box with a length of l, width of w and a height of h is given by the formula:
volume of the box = length * width * height = lwh
The volume of a cylinder with a height of h, and radius r is given by the formula:
volume of the cylinder = π * radius² * height = πr²h
Since the box and the cylinder have the same height and the cylinder is wide enough for the box to be placed inside, this means that the box has a volume greater than that of the cylinder. Hence:
If the box can take 8 cups, the cylinder would be able to take 10 cups.
Which expression is the result of factoring the expression below by taking out its greatest common factor?
8x2 – 24 = ?
Answer:
Step-by-step explanation:
You need to give us the choices. However, I will try and give you the answer.
The highest common factor is 8
8(x^2 - 3) This is the answer I think the question expects.
8(x - √3 )(x + √3) this is also possible
Solve please I don’t know how to do this.
Answer:
its 63 lol
Step-by-step explanation:
Answer:
63
Step-by-step explanation:
x/3-10=11
x/3=21
crisscross then
x=21×3
c=63
What’s the answer for this one??
Answer:
It is the second one.
Step-by-step explanation:
a and e are equal because they are mirrored. d and b are equal because they are on the same line and at the same point where the parallel lines go through. b and f are also mirrored. That leaves c and e which don't match.
What is the measure of angle 1?
60
125
45
120
Answer:
120 degrees
Step-by-step explanation:
plz help and show me the steps so I know how to do this!! thank you!!
Answer
6th of the power of 1 would be 5th power
Step-by-step explanation:
Please help! Will mark brainliest if correct! Use the model attached to answer
Answer:
4 cubes will be shown in the right view of the model and the 1st option is the top view for the model.
The ratio of male to female students in a junior high
school is 13:17. Find the total population of the
school if there are 715 male students.
plsss.......answer
the total no of population=1650
13:17 first add the two numbers 13+17=30
then 13/30×y =715 , i make 13 at the numerator because it's males ratio
after that 30/13×13/30y =715 ×30/13
y =715×30/13
y =1650
after u find the total no it's simple to find the no of females
17/30×1650=935
What’s the answer ???
Answer:
Option 2 [tex]\frac{4\sqrt{6} }{3}[/tex]
Step-by-step explanation:
[tex]\frac{4\sqrt{2} }{\sqrt{3} } = \frac{4\sqrt{2} \sqrt{3} }{\sqrt{3}\sqrt{3} } = \frac{4\sqrt{6} }{3}[/tex]
Find the value of X round to the nearest 10th law of cosines.
Image of triangle is missing, so i have attached it.
Answer:
x = 18
Step-by-step explanation:
From the diagram attached, we can see that the 3 given sides have dimensions of x, 16 and 30.
Also, we see the angle opposite the dimension of x is 30°
Thus,we can use law of cosine to fjnd the value of x. Thus:
x² = 16² + 30² - 2(16 × 30)cos 30
x² = 256 + 900 - (960 × 0.866)
x² = 324.64
x = √324.64
x = 18.02
Approximating to the nearest tenth gives; x = 18