Answer:
A
Step-by-step explanation:
Solve using elimination. 3х + 8y = -2 and -3х – бу = -6
Answer:
x=10y= -4Step-by-step explanation:
Simultaneous equations3х + 8y = -2-3х – 6у = -6(3)3х + 8y = -29x + 24y = - 6(4)-3х – 6у = -6-12x-24y=-249x = - 6-12x= -24-3x=-303x=30x=30/3x=10Put x back into equation3х + 8y = -23(10) + 8y = -230 + 8y = -28y= -2-308y= -32y= -32/8y= -4Verify solutions-3х – 6у = -6-3(10) - 6(-4)= - 6-6=-6HELPPPPPPPPPPPPPPPPPPPPp
help please, i don't know what to do for b. I've did a which is -2
Answer:
y=-2x+6
Step-by-step explanation:
So you know the perpendicular gradient is -2 so the equation so far is y=-2x+?
Find the midpoint of AB which is:
(3,0)
Using this, plug it into the equation you've formed:
0= -6 + ?
? = 6
So the equation of the perpendicular line is y=-2x+6
Find the equation of the line that passes through (1,-1) and is parallel to
2
x
+
y
−
3
=
0
.
Leave your answer in the form
y
=
m
x
+
c
Answer:
y= -2x+1
Step-by-step explanation:
equation of line parallel to given equation is
2x+y+k=0
this pass through 1,-1
substituting the value we get
k=-1
putting value of k in above equation
we get final equation
A 9-foot piece of cotton cloth costs $15.84. What is the price per yard?
Hi!
How do we convert feet into yards?One yard is equal to 3 feet.
Therefore, we can simply divide the number of feet by 3 to get the number of yards.
First, let's convert 9 feet into yards.
9/3 = 3 yards
So, we know that 3 yards of cotton cloth cost $15.84
To get the price per yard, we want to divide the number by 3, as there are 3 yards total.
We will get the price per yard by doing that.
15.84 / 3 = 5.28
Therefore, the price per yard is $5.28.
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Answer: $5.28 per yard
Step-by-step explanation:
There are 3 feet in one yard. We can divide 9 by 3 to see how many yards the price given is for.
9 / 3 = 3
This piece of cotton cloth is 3 yards. To find the price of one yard, we will divide the cost given by 3.
$15.84 / 3 = $5.28 per yard
The price per yard is $5.28.
A sports ball has a diameter of 15 cm. Find the volume of the ball and select the correct units. Round your answer to 2 decimal places
The volume of the ball has a diameter of 15 centimeters around 2 decimal places is 1767.15 cubic centimeters.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
A sports ball has a diameter of 15 cm.
Then the radius of the ball will be
r = d/2
r = 15/2
r = 7.5 cm
Then the volume of the ball will be
[tex]\rm Volume = \dfrac{4}{3} \times \pi \times r^3\\\\Volume = \dfrac{4}{3} \times \pi \times 7.5^3\\\\Volume = \dfrac{4}{3} \times \pi \times 421.875\\\\Volume = 1767.15\ cm^3[/tex]
More about the geometry link is given below.
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Nick decided to bake some cupcakes by himself he has 200 g of flour he needs 12 g of flour for each cupcake
Answer:
16
Step-by-step explanation:
200 grams of flour divided by 12 grams of flour equals 16 grams of flour.
Find the solution of this system of equations
6x + 3y = 12
6x - 5y = 60
Answer:
x = 5 , y = -6
Step-by-step explanation:
the method is written on the photo sent above
which system of equations represents lines f and g
Answer: A
Step by step
The dot plot represents the height in inches of the Deep Purple Gymnastics Team members. Explain how the outlier of the data affects the statistical summary of the data.
Select the answers from the drop-down menus to complete the statements.
The mean height ______ because of the outlier.
increases
decreases
stays the same
The median height _______ because of the outlier.
increases
decreases
stays the same
The range ________ because of the outlier.
increases
decreases
stays the same
The mean height decreases because of the outlier, The median stays the same and the range increases because of the outlier.
What is an Outlier in a Dataset?Outlier in a data set is simply the extremely low data point or an extremely high data point compared to other points in the dataset.
It will stand out from the other values in the dataset.
Given a dot plot which represents the height in inches of the Deep Purple Gymnastics Team members.
Only mean and range is affected by the outlier, median will not, since the middle value of the data set remains the same even if the end values are changed.
Here outlier is at the lowest end, which is 60.
Mean is the average of the data points. Since the outlier is at the low end, mean decreases.
Median stays the same.
Range is the difference of maximum and the minimum value. Range increases since the minimum value is lower.
Hence the mean decreases, median stays the same and range increases.
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In the figure below, trapezoid KLMN is similar to trapezoid RSTU. What is the length, in units, of ST?
Answer:
7.5
Step-by-step explanation:
Trapezoid KLMN is scaled down (Or up if you're going from RSTU to KLMN) by doing 12/4*3
10/4*3=7.5
Find an ordered pair that is a solution to the equation.
Answer:
x could be 4
Y could be 5
Step-by-step explanation:
3 x 4 - 5 = 7
The diameter of a wheel is 150 cm, if the wheel travels 376.8 m, how many times does the wheel rotate?
Answer:
79.94
Step-by-step explanation:
First, let us find the circumference of the wheel (circle).
For that, let us use the below formula.
C = π × d
Given that,
d ⇒ diameter ⇒ 150 cm ⇒ 1.5 m
Let us find now.
C = π d
C = 3.142 × 1.5
C = 4.713
And now to find the number of times that the wheel rotates, you have to divide the total distance that wheel traveled by it's circumference.
Let us find now.
No. of times that wheel rotates = 376.8m ÷ 4.713m
No. of times that wheel rotates = 79.94
Approximately, the wheel will rotates 80 times.
PLEASE HELP ME MY 40 QUESTIONS ARE DUE TODAY WILL GIVE BRAINlIEST!!!!!
Answer:
300
Step-by-step explanation:
there are 300 tens in 3,000 since 3,000 divided by 10 is 300
if y-x=4 and x is three times the value of y, what is the value of x + y?
A) -8
b) -4
c) 0
d) 6
e) 8
Answer:
E = 8
Step-by-step explanation:
y - x = 4
y - (3y) = 4
y - 3y = 4
2y = 4
y = 4/2
y = 2
x = 3y
x = 3×2
x = 6
x + y = 2+6
x+y = 8
The white chocolates cost her 3 dollars per pound and the dark chocolates cost her 4 dollars per pound Denise spends 27 dollars altogether for the white and dark chocolate and bought a total of 8 pounds of white and dark chocolate how many pounds of each type of chocolate did she buy
Answer:
I believe its 8
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
8 your answer is 8
A season has 81 home games. If you purchase a season ticket in the
bleacher section, what is the cost per game, in dollars, for this ticket?
s
s
1
1
2.
3.
t
4
5
6
7
CO
8
9
Answer:
I don't know that answer sorry guys
A rectangle is 6 feet long and 3 feet wide. What is the perimeter of the rectangle?
Answer:
18
Step-by-step explanation:
you dd u all sides 6+6+3+3
Answer:
18 ft
Step-by-step explanation:
So to get our answer, we add up all 4 sides of the rectangle. We know that rectangles have two pairs of parrallel sides, so we have 6 6 3 3.
We add up those four variables(6+6+3+3) to get our answer of 18 ft!
Hope this helped ya out ^^
What is the a100 of an=0.9n-6.3
Answer: 83.7
Step-by-step explanation: Plug in 100 for n
0.9(100)-6.3
90-6.3
83.7
please i need help please
Answer:
(x,y) -> (x-2, y+1)
Step-by-step explanation:
From a point count the rise/run to the new point
The fish population is growing 3 % each year in a local lake. The function to model this is A = A,(1 + r)' where A is the ending population, A, is the starting population, r is the annual growth rate, and t is the number of years. If the fish population was 1, 300 in 2010, how many fish can be expected in the lake 5 years later? Round to the nearest whole number.
How many milliliters are in
6 liters? 1L = 1000 mL
6 L = [?] mL
Answer:6000 mL
Step-by-step explanation: As you said, 1 L is 1000 mL. Then 6 L is 6000 mL
Define each following sets by listing its elements, the set of letters in the word "salt"
The word can be represented as a set and in the roaster form the set of letters is {s, a, l, t}
What is set?A set is a collection of clearly - defined unique items. The term "well-defined" applies to a property that makes it simple to establish whether an entity actually belongs to a set. The term 'unique' denotes that all the objects in a set must be different.
We have given letter:
"salt"
Here, no letter is repeated.
So we can write it as roaster form:
Let's denote the set as S
S = {s, a, l, t}
Number of element in the set = 4
We can make new set from it if the set has only vowels
S(v) = {a}
If set has only consonants:
S(c) = {a, l, t}
Thus, the word can be represented as a set and in the roaster form the set of letters is {s, a, l, t}
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What are the values of lim g(x) and lim g(x)?
x + 33
x + 33+
-
X-
-
=
lim g(x) = - 16 and lim g(x) = - 7
- 33"
x 33*
lim g(x) = - 15 and lim g(x) = -6
X - 33"
X - 33
lim g(x) = - 7 and lim g(x) = - 16
X - 33
X - 33*
-
= -
-
lim g(x) = -6 and lim g(x) = - 15
- 33-
X - 33
X-
-
Answer:
the last answer is correct, lim as it aproaches 33- is -6, and as it aproaches 33+ is -15
Step-by-step explanation:
The limit as the function approaches 33+ means the limit as the function approaches 33 from the right side, and the table shows it approaches 15 from x is above 33.
When x is slightly below 33, it aproaches -6.
The values of lim g (x) when x → - 33 and lim g(x) when x → 33 are,
⇒ - 6 and 15
What is mean by Function?A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
We have to given that;
Table shown the relation between x and g (x).
Now, By table we get;
At x = 32.999;
g (x) = - 6.01
At x = 33.001;
g (x) = - 15.01
Thus, The values of lim g (x) when x → - 33 and lim g(x) when x → 33 are,
⇒ - 6 and 15
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Please help will give brainliest!!!!
(If correct)
What is the explicit formula for this geometric sequence
Answer:
A
Step-by-step explanation:
8 is the first in the sequence, so we put 1 in for n
This makes the equation: 8 × (½)^0 which is equal to 8.
To find the rest, plug in 2, 3 ,4 etc. for n
Hope this Helps!
O. The number of for attending football match this week was 12% more more than last week. if 728 people attended this week's match how many attended last week?
help please???????????
Answer:
D
Step-by-step explanation:
The problem is put in different fractions to make it more confusing.
1 1/15 miles+ 1 3/5 miles+ 1 2/3 miles
We can find the common denominator of all of the fractions.
[tex]1 \frac{1}{15} + 1 \frac{9}{15} + 1 \frac{10}{15} \\= 3+\frac{20}{15} =4 \frac{5}{15}\\\\=[/tex]4 1/3
[tex]monday = 1 \frac{1}{15} [/tex]
[tex]tuesday = 1 \frac{3}{5} [/tex]
[tex]wednesday = 1 \frac{2}{3} [/tex]
to find:the total number of miles Kenya ran in 3 days.
solution:[tex] \frac{16}{15} + \frac{8}{5} + \frac{5}{3} [/tex]
[tex] = \frac{16}{15} + \frac{8 \times 3}{5 \times 3} + \frac{5 \times 5}{3 \times 5} [/tex]
[tex] = \frac{16 + 24 + 25}{15} [/tex]
[tex] = \frac{65}{15} = \frac{13}{3} [/tex]
[tex] = 4 \frac{1}{3} [/tex]
therefore, the correct answer is option D.
Write an equation to be used to find x then solve for x
Answer ASAP and give brainliest
Answer:
Equation: [tex]\frac{36+x}{2} =65[/tex]
x = 94
Step-by-step explanation:
First, take the values and plug them into our general formula used in relationships between interior and exterior angles.
[tex]\frac{36+x}{2} =65[/tex]
Now, rearrange the equation to get x by itself. This will eventually lead you to the answer sought.
[tex]36+x=65*2 = 130\\x =130-36 = 94\\x = 94[/tex]
Which ordered pair is a solution of the equation?
7z -5 = 4y -6
Choose 1 answer:
Step-by-step explanation:
7z-5=4y-6
-4y=-6-7z+5
-4y=-1-7z
y=1/4+7/4z
y=7/4z+1/4
7z=4y-6+5
7z=4y-1
z=4/7y-1/7
-100 points, please answer both parts-
The data modeled by the box plots represent the battery life of two different brands of batteries that Mary tested.
(a) What is the median value of each data set?
(b) Compare the median values of the data sets. What does this comparison tell you in terms of the situation the data represent?
Answer:
Brand X median: 13
Brand Y median: 16
Brand Y's median means that it lasts 3 hours longer than Brand X's median :)
Step-by-step explanation:
Median on boxplot is the line in the middle of the box :)
16 - 13 = 3
Have an amazing day!!
Please rate and mark brainliest!!