Answer:
The equation x + 2y = -1 describes a line with a slope of -1/2 that contains the point (-5, 2) ⇒ D
Step-by-step explanation:
The slope of the linear equation of the form ax + by = c is m = [tex]\frac{-a}{b}[/tex] , where a and b are integersLet us use this rule to solve the question
The slope of the line is [tex]-\frac{1}{2}[/tex] and the line contains the point (-5, 2)
We want to find which equation has the same slope and contains the point
A.
∵ x + 2y = 1
∴ a = 1 and b = 2
→ Use the rule above to find m
∴ m = [tex]\frac{-1}{2}[/tex]
∴ The line has the same slope
→ Let us find if the line contains the point (-5, 2), by substituting x by -5
and y by 2 in the left side of the equation if the answer equals
the right side, then the line contains it
∵ L.S = -5 + 2(2) = -5 + 4 = -1
∵ R.S = 1
∴ L.S ≠ R.S
∴ The line does not contain the point (-5, 2)
B.
∵ x - 2y = -1
∴ a = 1 and b = -2
→ Use the rule above to find m
∴ m = [tex]\frac{-1}{-2}[/tex] = [tex]\frac{1}{2}[/tex]
∴ The line does not have the same slope
C.
∵ x - 2y = 1
∴ a = 1 and b = -2
→ Use the rule above to find m
∴ m = [tex]\frac{-1}{-2}[/tex] = [tex]\frac{1}{2}[/tex]
∴ The line does not have the same slope
D.
∵ x + 2y = -1
∴ a = 1 and b = 2
→ Use the rule above to find m
∴ m = [tex]\frac{-1}{2}[/tex]
∴ The line has the same slope
→ Substitute x by -5 and y by 2 in the left side
∵ L.S = -5 + 2(2) = -5 + 4 = -1
∵ R.S = -1
∴ L.S = R.S
∴ The line contains the point (-5, 2)
The equation x + 2y = -1 describes a line with a slope of -1/2 that contains the point (-5, 2)
larry works at target part-time , he must earn at least $400each week , he earns $10.50 per hour , which inequality represents the number of hours ,x, jamal must work each week
Answer:
1x
Step-by-step explanation:
4x x 6x
x+5y=5
-x+6y=-5
Please Help Me Thank you :)
Answer:
(5, 0)
Step-by-step explanation:
For the first line, we can isolate x by subtracting 5y on both sides.
x=5-5y.
Now we can use substitution on the second line!
-(5-5y)+6y=-5
= -5+5y+6y=-5
=-5+11y=-5
=11y=0
y=0
We subsitute y for the first line,
x+5(0)=5
x+0=5
x=5
We can check our work by plugging in x and y
5+5(0)=5 ✔
-5+6(0)=-5 ✔
Answer:
The lines cross at (5,0)
Step-by-step explanation:
Find the error
Examine Tamika’s work below. What is Tamika’s error?
Answer:
the answer would be A. adding the exponents
Step-by-step explanation:
Answer:
A. adding the exponents
Step-by-step explanation:
Hope this helped have an amazing day!
Find the slope
between the
following points:
(-7,0) and (-6,-10)
Answer:
[tex]m=-10[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Point (-7, 0)
Point (-6, -10)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute [SF]: [tex]m=\frac{-10-0}{-6+7}[/tex]Subtract/Add: [tex]m=\frac{-10}{1}[/tex]Divide: [tex]m=-10[/tex]Answer:
10
Step-by-step explanation:
Slope formula is: [tex]\frac{y2+y1}{x2-x1}[/tex]
So we plug in the numbers.
[tex]\frac{-10-0}{-7-(-6)}[/tex]=[tex]\frac{-10}{-1}[/tex]=10
Help me pleaseeeee!!!
Answer:
quadrant 4
Step-by-step explanation:
Answer:
Quadrent 4
Step-by-step explanation:
the bottom left quadrent if quadrent 4 top right is 1 top left is 2 and bottom right is 3
Which is not equivalent to the others please help
Answer:0.801
Step-by-step explanation:
You bought 12 red apples and 15 green apples to make pie. What is the ratio of the number of red apples to the total number of apples?
Answer:
12:27
Please give me brainliest
Factor the expression using the GCF: (42 + 12 ) = __ ( __+ __ )
Answer:
2
Step-by-step explanation:
Answer:
6(7+2) hope this helps
Step-by-step explanation:
(42 + 12 )
= 6(7+2)
Please help me I’m not good at math ❤️
0.78= 78%
13/20=0.65
7/25=28%
17/50=34%
10+10
any one know the answer Im stuck am im in 8th grade
Answer:
20
Step-by-step explanation:
10+10 = 20
Answer:
its 20 and if your in 8th grade you should know that
Step-by-step explanation:
Plase help me it would be helpful
Answer:
I believe drink A
Step-by-step explanation:
because it has more sugar in less ounces
Answer:
Drink A
Step-by-step explanation:
Is $5.40 the same as $7.00?
Answer:
5.40 is not the same as 7.00
Step-by-step explanation:
x/3a*x/4a
________
x/8a
Step-by-step explanation:
First let's simplify the upper part which is without x/8a
3a/x multiply xa/x
3a xa
__ x __
x x
x the denominator of 3a is cancelled with the x from xa the numerator.
that leaves us with
3a × a
__
x
we get 3a squared divided by x =
3a^2
____
x
now since we're dividing it with x/8a
3a^2 x
____ ÷ _____
x 8a
we change the sign ÷ to x so we flip the x/8a
3a^2 8a
_____ x ____
x x
8x3 = 24
a^2 x a = a^3
x multiply x = x^2
the final answer
24a^3
_____
x^2
how many solutions do you expect to get when you solve an absolute value equation? explain.
Answer:
2 most likely
Step-by-step explanation:
please hurry ! ! which linear inequality is represented by the graph?
Answer:
y>2/3x+3
Step-by-step explanation:
Answer and Step-by-step explanation:
The answer is the third option, or:
[tex]y > \frac{2}{3} x + 3[/tex]
This is because the line has a rise of 2 and a run of 3 (so a slope of 2/3)
and Everything is filled in above the line, so y is greater than the the values on the line and below the line.
#teamtrees #WAP (Water And Plant)
please I need help in this...it's for maths please
Answer:
1.6962 to 2.d.p = 1.700.007395 = 0.007 to 3d.p0.4247 = 0.425 to 3.d.p0.007395 = 0.0074 to 4.d.pSignificant Figures
32549 = 32500 to 3.s.f909520 = 910000 to 3.s.f32549 = 32550 to 4.s.f909520 = 909500 to 4.s.fStep-by-step explanation:
Answer:
hi hifsa please talk to me I wanna talk u
What is the y-intercept of the line
(0, -5)
Solution:The y-intercept of the line is the point where the line intersects the y-axis.The y-intercept is written like this: (0, b) where "b" stands for the y-intercept of the line.The line touches the y-axis (the vertical axis) at (0, -5)Therefore, the y-intercept of the line is (0, -5) or -5.Hope it helps.
Do comment if you have any query.
SOLVE FIRST GETS BRAINLIEST WRONG ANSWERS WO
N'T EARN ANYTHING
Ms. Raab and Ms. Levy both drink coffee in the
mornings.
Ms. Raab adds 1 more teaspoon to each cup of
coffee than Ms. Levy. Together, they both add 5
teaspoons of sugar to their coffees.
How many teaspoons of sugar does Ms. Raab add?
How many teaspoons does Ms. Levy add?
Set up an equation to show this, and then solve.
Answer:
Ms Levy = 2
Ms Rabb = 3
Step-by-step explanation:
Let :
Number of teaspoons taken by Ms Levy = x
Number of teaspoons taken by Ms Rabb = x + 1
Total number of teaspoons taken by both = 5
(Number of teaspoons taken by Ms Rabb + Number of teaspoons taken by Ms Levy) = total number of teaspoons taken
x + 1 + x = 5
2x + 1 = 5
2x = 5 - 1
2x = 4
x = 4/2
x = 2
Hence,
Number of teaspoons of sugar added by Ms Levy = x = 2
Number of teaspoons of sugar added by Ms Rabb = x + 1 = 2 + 1 = 3
In order to join a hip-hop dance crew, there is a 30$ initiation fee and a 4$ monthly fee. If you were to write an expression to represent the situation, what is the constant
Answer:
30 is your constant
Step-by-step explanation:
y = 4x + 30 ends up being your equation and a constant is the # without a variable. That is why the constant would be 30.
Please give the highest value
The volume of a single layer in a rectangular prism is 9 cubic centimeters. There are 6 layers in the rectangular prism. What is the total volume, in cubic centimeters, of the rectangular prism?
Answer:
Total volume of the rectangular prism = 54 cubic centimeters
Step-by-step explanation:
Volume of a single layer in a rectangular prism = 9 cubic centimeters
There are 6 layers in the rectangular prism
What is the total volume, in cubic centimeters, of the rectangular prism?
Total volume of the rectangular prism = Volume of a single layer in the rectangular prism × number of layers in the prism
= 9 cubic centimeters × 6 layers
= 54 cubic centimeters
Total volume of the rectangular prism = 54 cubic centimeters
Emily and Olivia are selling chocolate bars. Emily sold twice as many as Olivia. They sold a total of 48 bars. How many chocolate bars did they each sell?
Answer:
Olivia sold 16 chocolate bars and Emily sold 32.
Step-by-step explanation:
Let's set the amount of chocolate bars Olivia sold as x.
Since Emily sold twice as many, she would have sold 2x chocolate bars as a result.
Therefore, since the total is 48 bars, the equation would be [tex]x + 2x = 48[/tex].
[tex]x + 2x = 48[/tex]
[tex]3x = 48[/tex]
[tex]x = 16[/tex]
Hence, Olivia sold 16 chocolate bars.
Substituting the new value into the equation, we would find that Emily had sold 2x = 2(16) = 32 chocolate bars.
Checking the answer, we would find that (16 + 32) chocolate bars is indeed 48 chocolate bars, which fits the question.
Finally, we can arrive at the conclusion that Olivia sold 16 chocolate bars and Emily sold 32.
Hope this helped!
If f(x) = x^3, what is the equation of the graphed function?
A. y = f(x-3) - 2
B. y = f(x+3) - 2
C. y = f(x+2) - 3
D. y = f(x-2) + 3
Answer:
b
Step-by-step explanation:
Just did the test got it right
The equation that represents the graph of the function g(x) is g(x) = f(x + 3) - 2
How to determine the function g(x)?The equation of the function f(x) is given as:
f(x) = x^3
The function g(x) is shifted down by 2 units and shifted left by 3 units, to get the function g(x)
This means that:
g(x) = f(x + 3) - 2
So, we have:
g(x) = f(x + 3) - 2
Hence, the equation that represents the graph of the function g(x) is g(x) = f(x + 3) - 2
Read more about function transformation at:
https://brainly.com/question/4025726
#SPJ2
The winning time for the men's 400-meter race in each of the Olympic Games from 1976 to 1996 can be modeled by the equation y = −0.054x + 44.54 , where x is the number of years after 1976 and y is the winning time in seconds. If the relationship continues, which equation could be used to predict the winning time in the year 2020?
Answer:
D. y = −0.054(44) 44.54
Step-by-step explanation:
The difference in years from 1976 to 1996 is 20 years
But from 1976 to 2020 the years would be 44
So here put the value of x as 44
Therefore the equation that could be used for predict the winning time for the year 2020 is y = −0.054(44) 44.54
Hence, the correct option is d.
ANd the rest of the options are incorrect
What is the Cube Root of 27?
Answer:
3
Step-By-Step Explaination
6+16k factored using the GCF
Answer:
2(3 + 8k)
Step-by-step explanation:
GCF of 6 and 16 is 2.
6 + 16k = 2(3 + 8k)
Last question can someone help?
Answer:
The answer is y= - 2x - 14
Step-by-step explanation:
Slope intercept form is y=mx+b so the answer is y= - 2x - 14
A stereo speaker in the shape of a triangular pyramid has a height of 6 inches. The area of
the base of the speaker is 11 square inches.
What is the volume of the speaker in cubic inches?
Answer:
[tex]V=22\ \text{inches}^3[/tex]
Step-by-step explanation:
Given that,
Height of a triangular pyramid = 6 inches
The area of the base of the speaker is 11 square inches
We need to find the volume of the speaker.
The formula for the volume of triangular pyramid is given by :
[tex]V=\dfrac{1}{3}Ah[/tex]
A is area of base and h is height
[tex]V=\dfrac{1}{3}\times 11\times 6\\\\=22\ \text{inches}^3[/tex]
So, the volume of the speaker is [tex]22\ \text{inches}^3[/tex].
Answer:
72 in squared
Step-by-step explanation:
Julie and her sister, Meg, made milkshakes last night. Julie made a giant milkshake using 2
scoops of chocolate ice cream and 4 scoops of vanilla ice cream. Meg wasn't as hungry, so
she only used 1 scoop of chocolate ice cream and 2 scoops of vanilla ice cream in her
milkshake. Whose milkshake tasted more chocolaty?
A. Julie's milkshake tasted more chocolaty.
B. Meg's milkshake tasted more chocolaty.
C. Neither. The milkshakes tasted equally chocolaty.
Answer: C
Explanation: 2/4 = 1/2
Answer:
Why did you put the anwer if you want someone to answer it?
Step-by-step explanation:
-m-