Answer:
x= -3
y= -9
Step-by-step explanation:
Y-4X =3 ; 2x-3y=21
Y= 3+ 4x
2x -3( 3+4x)= 21
2x- 9- 12x= 21
-10x -9= 21
-10x -9+9= 21+9
-10x = 30
X= 30/-10= -3
Y= 3+4x = 3+ 4* (-3)= 3-12= -9
Find the median and mean of the data set below:
4, 45, 34, 23, 33
Answer:
27.8 is the mean... 33 is the median
Step-by-step explanation:
Which of the following is a true statement?
Answer:
The first one is TRUE.
You would convert the 1/2 into 4/8 to compare them and you will see that 3/8 is less than 4/8 or 1/2
Which numbers from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10), if any, will solve this equation?
2x + 3 = 5x - 3
Answer:
2
Step-by-step explanation:
2(2)+3=7
5(2)-3=7
Answer:
2
Step-by-step explanation:
2 multiplied by 2 is 4+3=7 and 5x2=10-3=7
Help please
Brainiest answer to whoever is first
Answer:
84 inches squared
Step-by-step explanation:
perimeter = 6+7+5+10+15
= 43
A chef takes c cartons of eggs from the refrigerator. Each carton contains 12 eggs. The chef wants to have a total of at least 50 eggs.
Answer: 5 cartons
Step-by-step explanation:
If the Chef wants to have a total of at least 50 eggs and each carton contains 12 eggs, divide 50 by 12 to find out the number of cartons needed and then round the number up:
= 50 /12
= 4.16
Round it up to the nearest 1:
= 5 cartons
This will ensure that there is at least 50 eggs because 5 * 12 = 60 eggs.
An employee does not pay tax on the first $4000 of earnings and then 25% tax on the rest of earnings. If he wants to have $20000 net of tax earnings does he need
Answer:
$68000
Step-by-step explanation:
Tax free earning = first 4000
Tax on remaining amount = 25%
Total earning in other to have $20000 net of tax earning :
Net of tax = tax free earning + (25% * remaining amount)
Let remaining amount = x
20000 = 4000 + (0.25 * x)
20000 = 4000 + 0.25x
20000 - 4000 = 0.25x
16000 = 0.25x
x = 16000 / 0.25
x = 64000
Hence,
Total earning should be :
Tax free earning + roaming amount
4000 + 64000
= $68000
What is the surface area of the cylinder?
226.08 cm²
678.24 cm²
1,356.48 cm²
452.16 cm²
Answer:
452.16
Step-by-step explanation:
i got it right on test
The surface area of the cylinder is,
⇒ TSA = 452.16 cm²
We have to given that;
Height of cylinder = 6 cm
And, Diameter of cylinder = 12 cm
Hence, We get;
⇒ Radius of cylinder = 12 / 2 = 6 cm
We know that;
The formula for the total surface area of a given cylinder whose radius is r and height is h is,
TSA = 2πr (h + r)
Hence, We get;
TSA = 2πr (h + r)
TSA = 2 × 3.14 × 6 (6 + 6)
TSA = 37.68 × 12
TSA = 452.16 cm²
Thus, The surface area of the cylinder is,
⇒ TSA = 452.16 cm²
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A 3 pound package of ground beef sells for $6. At this rate, if John buys 10 pounds of
ground beef, how much would he pay?
Answer:
$20
Step-by-step explanation:
3 pounds of beef is 6 dollars.
6 divided by 3 is 2. Therefore, each pound cost $2.
He wants to buy 10 pounds of beef.
9 pounds would be $18.
Add 1 pound, which is $2 and you will get $20.
Therefore, he would pay $20!~
Hope this helps!~~ <3
Solve (x + 3 < 5) U (x - 7 > 1).
{ x | 2 < x < 8}
O/
{ x | x < 2 or x > 8}
Answer:
{ x | x < 2 or x > 8}
Step-by-step explanation:
Given the expression
(x + 3 < 5) U (x - 7 > 1).
Solve x+3 < 5
Subtract 3 from both sides
x+3 - 3 < 5-3
x < 2
For x - 7 > 1
Add 7 to both sides
x-7+7 > 1 + 7
x > 8
Hence the union of both is { x | x < 2 or x > 8}
Please help
Round your answer to the nearest hundredth
Answer:
∠ B ≈ 66.42°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosB = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{2}{5}[/tex] , then
∠ B = [tex]cos^{-1}[/tex] ( [tex]\frac{2}{5}[/tex] ) ≈ 66.42° ( to the nearest hundredth )
Graph the equation y=2x. Fill in the missing values in
the table.
Answer:
in this order (0,0) (1,2) (2,4) (3,6)
Step-by-step explanation:
pls mark brainliest
I can't see pictures, but to graph y=2x, you have to make 2x into slope form.
Just write 2 as a fraction, or 2/1. 2 is the rise, and 1 is the run. So start at the origin, or (0,0), and go up 2 units, then 1 unit right. So you start at (0,0), then now you should be at (1,2). Repeat the process to make a straight line.
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hope it helps
part A- calculate the measure if
Part b- calculate the measure of
PLEASE HELP ME ITS DUE In 10 mins please
Answer:
Step-by-step explanation:
Part A
Since, BDFHJ is a regular pentagon,
Measure of interior angles of this pentagon = [tex]\frac{(n-2)\times 180}{n}[/tex]
= [tex]\frac{(5-2)\times 180}{5}[/tex]
= 108°
Since, ∠ABC ≅ ∠JBD [Vertical angles]
Therefore, m∠ABC = m∠JBD = 108°
Part B
m∠JBD + mCBD = 180° [Linear pair of angles]
108° + m∠CBD = 180°
m∠CBD = 180 - 108
m∠CBD = 72°
Similarly, m∠BDF + m∠CDB = 180°
m∠CDB + 108° = 180°
m∠CDB = 180 - 108
= 72°
In ΔCBD,
m∠BCD + m∠CDB + m∠DBC = 180°
m∠BCD + 72° + 72° = 180°
m∠BCD = 180° - 144°
= 36°
help I will give brainiest
8^2 + 15^2 = 289.
square root of 289 = 17
CORRECT
Answer:
itis because the triangle has a 90° angle thus making it a right triangle
Can someone help me please
Answer:
The mode of sunday is 15 is correct
Please help me out! Last question of the day 4 me!!!
Answer:
1/3
Step-by-step explanation:
its not 3 bc from a to b its getting smaller
A coin is tossed 7 times. What is the probability of getting all tails? Express your answer as a simplified fraction or a decimal rounded to four decimal places.
Answer:
0.0078125
Step-by-step explanation:
Probability of tail, p = 0. 5
Probability of getting all tails from 7 tosses :
P(tail) * P(tail) * P(tail) * P(tail) * P(tail) * P(tail) * P(tail)
0.5 * 0.5 * 0.5 * 0.5 * 0.5 * 0.5 * 0.5 = 0.0078125
We could also use the binomial probability formula :
P(x =x) = nCx * p^x * (1 - p)^(n - r)
n = 7 ; x = 7, p = 0.5,
P(x = 7) = 7C7 * 0.5^7 * 0.5^0 = 0.0078125
Select all the statements that are true about rectangles.
A Diagonals are congruent.
B Diagonals bisect angles.
C Opposite angles are congruent.
D Diagonals are perpendicular.
E Diagonals bisect each other.
Answer:
its A, B, E AND MABEY C
Step-by-step explanation:
The statements that are true about rectangles are mentioned in options [tex](A),(B),(C),(E)[/tex] .
What are rectangles ?Rectangles a shape with four sides and having internal angles of [tex]90^0[/tex]. Two of the sides are longer than the other two. The opposite sides of the rectangle are equal in length.
Properties of Rectangle :[tex](a)[/tex] The opposite sides are equal and parallel to each other.
[tex](b)[/tex] The diagonals bisect each other but not at [tex]90^0[/tex].
[tex](c)[/tex] Diagonals are equal in length.
[tex](d)[/tex] The diagonals of rectangle are congruent.
[tex](e)[/tex] The sum of interior angles is equal to [tex]360^0[/tex] .
[tex](f)[/tex] Each interior angle is equal to [tex]90^0[/tex].
[tex](g)[/tex] The angles of a rectangle are all congruent.
[tex](h)[/tex] Opposite angles of a rectangle are congruent.
So, from the above mentioned properties we can assume that statements mentioned in options [tex](A),(B),(C),(E)[/tex] are true about rectangles.
Hence, we can say that the statements that are true about rectangles are mentioned in options [tex](A),(B),(C),(E)[/tex] .
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I need help on this and the first person who answer this correctly gets BRANLIST
Answer:
-5/4
Step-by-step explanation:
Use the formula lol
HELP ASAP!!!!!!!!!!!!!!!!!
Answer:
#3 2 Right, 4 Down & #4 Vertical Compression
A rocking horse has a weight limit of 60 pounds.
What percentage of the weight limit is 33 pounds? (In order to find the percentage you need to divide 33/60=?)
What percentage of the weight limit is 114 pounds? (In order to find the percentage you need to divide 114/60=?)
What weight is 95% of the limit? (in order to find the weight in pounds you need to multiply 95%(0.95) x 60=?pounds)
Answer:
55%
190%
95% = 57
Help me I’ll give 15 points
Answer:
y= -x+3
Step-by-step explanation:
The slope is -1
The y-intercept is 3 if you count up with rise over run
Put it all together and you get y= -x+3
James has a goal of saving $600 by the end of the month. He already has $150 in his bank account. He makes $25 an hour at his job. Which equation could he use to find x, the number of hours he needs to work to reach his goal.
Answer:
150+25x = 600
Step-by-step explanation:
Hope this helped!
When you see multiplying rational number you first
Answer:
use pemdas
Step-by-step explanation:
PLease help me me need help plzzzzzzzzzzzzzzzzzz
Answer:
A (90)
Step-by-step explanation:
Mode is the number that occurs the most in a data set, in this set, the number 90 appears 4 times as seen. Making it the mode
How do I solve this question points to ever solves it.
A charge of 100 elementary charges is equivalent to?
[tex] \sf{with \: explanation \: please}[/tex]
Answer: The charge is equal to 1.602*10^(-17) C
Step-by-step explanation:
The elementary charge (the smallest charge that exists) is the charge of one proton (or the magnitude of the charge of a single electron), and it is equal to:
c = 1.602*10^(-19) C.
Where C stands for coulombs,
Then a charge of 100 elementary charges is equal to 100 times the charge of a single electron, this is:
Charge = 100*( 1.602*10^(-19) C) = 1.602*10^(-17) C
Which equation below will give a graph of a line parallel to the graph of -2x - 4y = 3?
Answer:
Any choice that has a slope of -1/2
Step-by-step explanation:
-2x - 4y = 3
-4y = 2x + 3
4y = -2x - 3
y = -1/2x -3/4
y = mx + b
m = slope
Ayúdenme por favor es muy importante
Answer:
boop
Step-by-step explanation:
Answer:
15-378099
Step-by-step explanation:
wjjcbm car red saw sell cell problem see one the window
how many cubic feet will it take to fill the prism below
the answer is a did you multiply then divide
Answer:
480
Step-by-step explanation:
Find the slope of the line through the points (12, -9) & (-11, -9)
Answer:
0
Step-by-step explanation:
Answer:
no. why?
Step-by-step explanation: