Answer:
k=9
Step-by-step explanation:
Here's how to solve this equation
Step 1: -7(k+9)=9(k-5)-14k
Step 2: -7k-63=(9k-45)-14k
Step 3: -7k-63=-5k-45
Step 4: -7k=-5k+18
Step 5: -2k=18
Solution: k=-9
Good luck on your assignment, hope this helps
Please help me find the area of compound shapes?!!?
Answer:
85 cm²
Step-by-step explanation:
Area = 5 x 5 + 15 x 4
Area = 25 + 60
Area = 85 cm²
what does each equation have in common
The equations have operations, variable, an equal sign in common.
What is an Equation?An equation is a mathematical expression that contains an equals symbol.
As per the definition, the equation contain operations, variable, an equal sign. That means whatever be the equation then it must contain operations, variable, an equal sign.
So, all the equations have operations, variable, an equal sign these three things in common.
For example: 4a+b=0
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The line passes through (8,-7) and is parallel to the line whose equation is y=2x+2.
Answer:
y = 2x -23
Explanation:
Given equation: y = 2(x) + 2
Comparing with slope intercept formula: y = m(x) + b
where m is slope, b is y-intercept
Here slope: 2 as parallel line has same slope
Find equation:
y - y1 = m(x-x1)
y -(-7) = 2(x-8)
y + 7 = 2x - 16
y = 2x - 16 - 7
y = 2x -23
Given graph to confirm answer:
Compare to slope intercept form
Slope=m=2Parallel lines have slopes equal
Equation in point slope form
y+7=2(x-8)y+7=2x-16y=2x-23BUILDING A horse farm is developing a new indoor arena in a rectangular building. They want the width of the building to be 3y feet and the length to be 4y+9 feet. Write an expression in simplest form to represent the area A of the building in terms of y.
A= ____
Answer:
3y(4y+9)=12y^2+27y......
The area A of the rectangular building in terms of y will be (12y² + 36y).
What is Area of rectangle?
The area of a rectangle is length time width.
Given that;
The width of rectangular building = 3y
The length of rectangular building = 4y + 9
Now,
Area of rectangle = length x width
Substitute all the values we get;
Area of a rectangle = 3y (4y + 9)
= 12y² + 36y
Thus, The area A of the rectangular building in terms of y will be
⇒ (12y² + 36y)
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A car salesperson receives a 7% commission per car sold. How much commission would the salesperson receive when selling a car for $24000?
Answer:
$1680
Step-by-step explanation:
To find 7% of 24000, convert 7% to a decimal and multiply. Percent means per hundred, 7% is 7/100 is .07
.07 × 24000
= 1680
What is the missing number ?? /6 =25/30
Answer:
5
Step-by-step explanation:
[tex]\frac{25}{30}[/tex] ( divide numerator and denominator by 5 ) , then
[tex]\frac{25}{30}[/tex] = [tex]\frac{5}{6}[/tex] ( with missing number ? = 5 )
Answer:
x = 5Step-by-step explanation:
What is the missing number ?? /6 =25/30
x : 6 = 25 : 30
x = 6 * 25 : 30
x = 5
-------------------------------
check
5/6 = 0.83
25/30 = 0.83
the answer is good
Simplify the algebraic expression
Answer:
1/4 x + 9/10
Step-by-step explanation:
[tex]=-\frac{1}{2}x+\frac{7}{10} +\frac{3}{4} x+\frac{1}{5}[/tex]
[tex]=\frac{3}{4}x-\frac{2}{4} x+\frac{7}{10} +\frac{2}{10}[/tex]
[tex]=\frac{1}{4} x+\frac{9}{10}[/tex]
Hope this helps
how many time 2/3 can go into 16
Explanation pls!!
Answer:
24 times
Step-by-step explanation:
16 divided by 2/3 is 24
hope this helped!
need help with all of these questions you see on the top. there the red squares. please someone smart. this is one of the problems I need to finish this tonight
Answer:
V = 13 x 9π
Step-by-step explanation:
The figure formed by filling water is also a cylinder, so the volume formula is the same: base area times height. This means that:
V = 9π x 13
It can also be rearranged to read:
V = 13 x 9π
can someone do this for me please?! Just the answer pls
Answer:
1 is H
2 is G
3 is B
Answer:
1 is G number 2 is F
Number 1 is G
Number 2 is F
I need the answer please.
Step-by-step explanation:
Hope this helps you. Anyone can correct if it's wrong.
Is this triangle acute, right, or obtuse?
acute
right
obtuse
Answer: Heyaa!
A Triangle is actue! :)
Step-by-step explanation:
Hopefully this helps you!!
Answer:
it's a right triangle
Step-by-step explanation:
at the bottom left corner of the triangle, there's a square that tells u that it's a right triangle
Find the length of a rectangular prism if the volume is 70 m3 the width is 2 m and the height is 7 m
Answer:
5m
Step-by-step explanation:
V=whl
Solving forl
l=V
hw=70
7·2=5m
The graph shows a line and two similar triangles.
On a coordinate plane, a line goes through (0, 0) and (6, 4). A small triangle has a rise of 2 and run of 3. A larger triangle has a rise of 4 and run of 6.
Which expression finds the equation of the line?
StartFraction y Over x EndFraction = three-halves
StartFraction y Over x EndFraction = two-thirds
StartFraction y Over 2 EndFraction = StartFraction 3 Over x EndFraction
StartFraction y Over 3 EndFraction = StartFraction x Over 2 EndFraction
Mark this and return
Answer:B mark me brainliest
Step-by-step explanation:Recall that slope is rise over run
slope = rise/run
The rise being the change in y, while the run is the change in x.
So we could informally think of it as slope = y/x
-----------
Since we're told that it "has a rise of 2 and run of 3", this means slope = 2/3.
The slope is both y/x and also 2/3.
Equating the two expressions leads us to y/x = 2/3. This is why choice B is the final answer.
Answer:
B) y/x=2/3
Step-by-step explanation:
Edg2022
find the circumference of the circle in round to the nearest 10th help please
Answer:
about 33.9 cm
Step-by-step explanation:
[tex]2\pi(5.4) = 10.8\pi = 33.9[/tex]
Johnny just got out of high school he has $90 then he gets a job, his job pays him 20 dollars a month, how much money does he have in 2 months.
Answer:
$130
Step-by-step explanation:
90 + (20 * 2) = 130
In this rug, given the horizontal segments are parallel and ∠1 ≅ ∠2, prove ∠3 ≅ ∠5.
1 is congruent to 3 and 2 is congruent to 5 because alternate interior angles are congruent.
Since 1 is congruent to 3 and to 2, then 3 is congruent to 2.
But 2 is congruent to 5, so since 3 is congruent to both 3 and 5, 3 and 5 must be congruent to each other.
What is being congruent in math?Two geometric figures are said to be congruent or to be in the relation of congruence if it is possible to superpose one of them on the other so that they coincide throughout.
The word 'congruent' means 'exactly equal' in terms of shape and size. Even when we turn, flip, or rotate the shapes, they remain equal. For example, draw two circles of the same radius, then cut them out and place them on one another.
What is an alternate interior angle?Alternate interior angles are the angles formed when a transversal intersects two coplanar lines. They lie on the inner side of the parallel lines but on the opposite sides of the transversal.
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Question on attached image
Answer:
Red: 144. Green: 360 Brown: 552. Yellow: 144.
Step-by-step explanation:
Okay, so, to find the probabilities of red and yellow, we gotta add green and brown probabilities and then subtract that from one. Green and brown probabilities added together are 0.76. Subtract that from one and you get 0.24. Divide that by two and we get 0.12 for both red and yellow. Now we multiply 1200 by each probability.
Pete went to the store. He bought 3 pounds of chili peppers, 5 pounds of habanero peppers,
and 1 pound of red bell peppers. How much did he spend?
red bell peppers
Anaheim peppers
chili peppers
habanero peppers
$2 per lb
$1 per lb
$2 per lb
$2 per lb
Help please
Find the common ratio for this geometric sequence.
72, 12, 2, 1/3, 1/18
Answer:
6:1. Each following term is 1 to 6 of the previous term.
Step-by-step explanation:
72/12 = 6/1
12/2 = 6/1
etc
HELPP ASAPP
How many solutions does the equation 2x + .5y = -4 have?
Answer:
Topics
2x-5y=4. 2x−5y=4. Add 5y to both sides. Add 5y to both sides.
2x=4+5y. 2x=4+5y. The equation is in standard form. The equation is in standard form.
2x=5y+4. 2x=5y+4. Divide both sides by 2. ...
\frac{2x}{2}=\frac{5y+4}{2} 22x=25y+4 Dividing by 2 undoes the multiplication by 2. ...
x=\frac{5y+4}{2} x=25y+4 Divide 4+5y by 2.
Step-by-step explanation: How do I determine how many solutions an equation has?
If solving an equation yields a statement that is true for a single value for the variable, like x = 3, then the equation has one solution. If solving an equation yields a statement that is always true, like 3 = 3, then the equation has infinitely many solutions.
25x25 in exponential form
The y-Intercept of the line whose equation is 7x - 4y= 8 is
8
7/4
-2
Answer:
-2
Step-by-step explanation:
To find the y-intercept, all we need to do is plug in 0 for x and solve for y, giving us [tex]-4y = 8[/tex], so y = -2.
Find the slope of the line that passes through the points (10,-14) (-4,-2)
Answer: 0.8571
The explanation is in the image please
The boxplots below show the test scores for 2 different classes. First period has 20 students and 2nd period has 16 students. How many more students scored 80 or higher in class 2 than in class 1?
A box plot has 5 data descriptions. The number of students who scored 80 or higher in class 2 than in class 1 is 2.
How does a boxplot show the data points?A box plot has 5 data descriptions:
The leftmost whisker shows the minimum value in the data.The rightmost whisker shows the maximum value in the data.The leftmost line in the box shows the first quartile.The middle line shows the median, also called the second quartile.The last line of the box shows the third quartile.The number of students in the first class who scored more than 80 is 10, while the number of students in the second class who scored more than 80 is 12.
Therefore, the number of students who scored 80 or higher in class 2 than in class 1 is 2(12-10).
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Your favorite restaurant has a promotion where you can win free food. You will roll 2 dice. The sum of the 2 dice will determine which prize you receive.
2-column table with 11 rows. Column 1, outcome, entries 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12. Column 2, probability, entries StartFraction 1 Over 36 EndFraction, StartFraction 2 Over 36 EndFraction, StartFraction 3 Over 36 EndFraction, StartFraction 4 Over 36 EndFraction, StartFraction 5 Over 36 EndFraction, StartFraction 6 Over 36 EndFraction, StartFraction 5 Over 36 EndFraction, StartFraction 4 Over 36 EndFraction, StartFraction 3 Over 36 EndFraction, StartFraction 2 Over 36 EndFraction, StartFraction 1 Over 36 EndFraction.
If a customer rolls a sum of 5 or 6, the prize is 10% off of today’s purchase.
What is the probability of receiving this discount? Enter your answer as a decimal rounded to the hundredths place.
P(10% off) =
Answer:
0.25
Step-by-step explanation:
edge '22
Answer:
D - E(evens) = E(odds) because the different probabilities and values end up balancing out, creating a fair game. Therefore, Jessica may choose whichever she likes.
Step-by-step explanation:
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 18
Blue 10
Green 7
Yellow 19
Purple 6
If the spinner is spun 1400 more times, about how many times would you expect to land on red? Round your answer to the nearest whole number.
Answer:
red 420 times
Step-by-step explanation:
The results show red (18) out of ( 18+10+7+19+6)
18 / 60
18/60 * 1400 = 420 times
find the value of p(7, 4)
Answer:
P(7,4)= 840
Step-by-step explanation:
help please!!!(will mark brainliest)
Step-by-step explanation:
remember, a probability is always desired cases over total possible cases.
the class has 10+15 = 25 students.
and 5 of them will be picked as representatives to the school board.
how many total possibilities do we have ?
since picked students can be picked only once, and the sequence of the 5 picked students in the group does not matter, we have a combination without repetition :
C(25, 5) = 25! / (5! × (25-5)!) = 25! / (5! × 20!) =
= 25×24×23×22×21 / (5×4×3×2) =
= 5×1×23×22×21 = 53,130 possible outcomes.
how many desired outcomes ?
that would be how many options we have to pick 2 out of 10 and 3 out of 15 :
C(10,2) × C(15,3) = 10! / (2 × 8!) × 15! / (3! × 12!) =
= 10×9/2 × 15×14×13/(3×2) =
= 5×9 × 5×7×13 = 20,475 desired outcomes
and the probability is
20475 / 53130 = 4095 / 10626 = 1365 / 3542 = 195 / 506
= 0.385375494... ≈ 0.39
2.
3х + 5x - 12
solve by quadratic formula
Answer:
3/2
Step-by-step explanation:
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