Answer:
y= mx + b
y= - 5/6x + b
slope is 1
y-intercept is (0,-5x/6)
Step-by-step explanation:
(0, -5) (-6, 0)
y2 -y1 = 0- -5 = 5
x2-x1 = -6- 0= 6
-5/6
Eight workers took 2 1/4 days to dig half of a tunnel. If only two workers are going to finish the tunnel, how long will it take them?
Answer:
0.5625
Step-by-step explanation:
A 10.0kg cart traveling East at 5.00 m/s collides with a 7.50kg cart traveling 3.00m/s at an angle of 55.0o. The two carts collide and stick together. What is the velocity of the cars after they stick together?
Answer:
The magnitude of the velocity of the cars after they stick is approximately 3.7 m/s
Step-by-step explanation:
The given parameters are;
The mass of the cart traveling East, m₁ = 10.0 kg
The speed of the cart traveling East v₁= 5.00 m/s
The mass of the cart traveling at an angle of 55° m₂= 7.50 kg
The speed of the cart traveling at an angle of 55°, v₂ = 3.00 m/s
The component of the velocities of the cart raveling at an angle are given as follows;
v = 3.00 × cos(55°)·i + 3.00 × sin(55°)·j
The total momentum before collision = m₁ × v₁ + m₂ × v₂ by substitution is therefore;
m₁ × v₁ + m₂ × v₂ = 10 × 5.00·i + 7.5 × (3.00 × cos(55°)·i + 3.00 × sin(55°)·j)
The total momentum after collision = (m₁ + m₂) × v₃
By the principle of the conservation of linear momentum, whereby the momentum is conserved, we have;
m₁ × v₁ + m₂ × v₂ = (m₁ + m₂) × v₃
10 × 5.00·i + 7.5 × (3.00 × cos(55°)·i + 3.00 × sin(55°)·j) = (10 + 7.5) × v₃
50.00·i + 12.91·i + 18.43·j = 17.5·v₃
62.91·i + 18.43·j = 17.5·v₃
∴ v₃ = (62.91·i + 18.43·j)/17.5 ≈ 3.59·i + 1.05·j
Therefore, the magnitude of the velocity of the cars after they stick = √(3.59² + 1.053²) ≈ 3.7
The magnitude of the velocity of the cars after they stick ≈ 3.7 m/s.
Question 2
If triangle ABC is congruent to triangle DEF, then which of the
following is true?
BC = DE
C = F
A = F
AB = EF
Answer:
i think b if im wrong
sorry]
iStep-by-step explanation:
Toni gets paid $30 to rake a lawn. The mean man who hired her deducts $3 from her wage for every 2 leaves that are still left on the lawn when she finishes the job. How many leaves does the mean man have to see left on the ground before Toni goes home with no money?
Answer:
20 leaves
Step-by-step explanation:
Step one:
given data
we are told that the amount paid =$30
The mean man deducts $3 for every 2 leaves seen on the lawn.
we are expected to estimate the number of leaves that can amount to a $30 deduction.
Step two:
let the number of leaves be x
so if 2 leaves are worth $3 deductible
the x leave will worth $30 deductible
cross multiply we have
x=30*2/3
x=60/3
x=20 leaves
Karen grew a pumpkin that weighed 18.9 pounds for the competition at the
county fair. Nancy grew a pumpkin that weighed 19.9 pounds. Who grew the
largest pumpkin, Karen or Nancy?
A. Nancy
B. Karen
Answer:
Nancy
Step-by-step explanation:
Her pumpkin weighed more
7) The triangles in the picture are congruent by which method?
Answer:
SAS
Step-by-step explanation:
The sides are indicated to be congruent from triangle to triangle.
The intersecting angle are equal. Therefore the triangle is congruent due to Side Angle Side
whats the answer to log x+2 (9x) = 2
Answer:
2/19
Step-by-step explanation:
x+2 (9x) = 2
x+18x=2
19x=2
19x/19=2/19
2/19
Answer:
x = 2/19
Step-by-step explanation:
Please mark brainliest
PLZ ANSWER ASAP! ONLY IF YOU ARE CORRECT. I NEED HELP MATH EXPERTSSSS!
Answer:
Angles 7 and 8
Angles 4 and 3
Are consecutive interior angles.
Step-by-step explanation:
which equation represents the cost,Y, for each friend to go bowling in terms of the number of games played,X?
Answer:
Answer is C
Step-by-step explanation:
Please choose the correct answer, and recieve brainliest.
Along with Louisiana, Napoleon sought to reestablish French control over which other New World colony?
Question 1 options:
Saint-Domingue
Saint Lucia
Saint Marine
Saint Alamo
Answer:
Step-by-step explanation:
Even though you selected math as the category, I believe the answer is A, Saint-Domingue.
George is at the shop and sees that 6 antiques cost $18. He needs 48 antiques to make a small museum. How much will 48 antiques cost?
pls dont fake it
Answer:
$144
Step-by-step explanation:
If 6 antiques cost 18 dollars, and 6 goes into 48 8 times, when you multiply 18 dollars by 8, you get 144 dollars
Brainliest! Fast answer! Correct answer!
Answer:
It would be C i believe
Step-by-step explanation:
Find an equation in the form y=ax2+bx+c for the parabola passing through the points.(−3,61), (4,96), (2,16)
Answer:
9657
Step-by-step explanation:
A bank tellers’ hourly wage will increase from $24 to $27.60. What percent increase does this represent?
Answer:
15%
Step-by-step explanation:
Answer:
15%
Step-by-step explanation:
pleaseee help
BRAINLIESt!!!!
Answer:
C y cause it was already there plus ik super late but hey sum points
Step-by-step explanation:
Please help ASAP !
Will mark brainliest :)
Who ever answers first
Answer:
-6
Step-by-step explanation:
this is written in point slope form, y=mx+b
we just need to recognize which numbers represent which variables,
(the "b" in the equation is the y-intercept)
Let's line them up to find out our "b"
y=-4x-6
y=mx+b
the -6 is where the "b" is located
Hope this helped and feel free to comment or ask questions!
y+2=2(x-1) slove plz
Answer:
try y=2x+4
Step-by-step explanation:
hope it helps :)
in a class of 30 students, there are 18 boys and 12 girls. What is the ratio of girls to boys?
Answer:
3:2
Step-by-step explanation
18:12, divide both by 6, 18/6=3, 12/6=2, ratio simplified is 3:2
Answer:
Step-by-step explanation:
12:18
2:3
Jessie runs four days a week after school She
runs the same number of miles on Monday,
Wednesday, and Thursday, and 5 miles on Friday
If she runs a total of 29 miles each week, how
many miles does she run on Monday?
Can you put this in multi step equation form
Answer:
she runs 8 miles on Monday 8 miles on Wednesday 8 miles on Thursday and 5 miles on Friday
Step-by-step explanation:
8+8+8+5 = 29
At a used book sale, 5 books cost $15. What is the cost per book?
Answer:
$3/book
Step-by-step explanation:
cost per book means divide the price of all the books by the number of books
$15/(5 books) = $3/book
H E L P P L E A S E !!!
Answer:
I believe it does because the top numbers go up 3 times and the bottom goes up 6
Step-by-step explanation:
Answer:
i think it does
x goes up by 3 every time
y goes up by 6 every time
hope this helps and feel free to give brainiest
101 = -4 + 5(x + 2) STEP BY STEP EXPLANATION IN NUMBERS NOT WORDS PLEASE!
Answer:
PEMDAS
Step-by-step explanation:
(P)arenthesis
(E)xponents
(M)ultiplication
(D)ivision
(A)ddition
(S)ubtraction
101 = -4 + 5(x + 2)
101 = -4 + 5x + 25
101 = 21 + 5x
101 - 21 = 5x
80 = 5x
80/5x
x = 16
I hope that helps :)
Which of the following math statements contain variable(s)? Check all that apply.
MULTIPLE CHOICE
A. 10 + 6 = x
B. 10 + ___ = 16
C. x + ___ = 16
D. 10 + 6 = 16
Answer:
The answer is
A. 10 + 6 = x
And
C. x + ___ = 16
Because variables are letters, for example 7x, X is the variable and 7 is the number. The variable can be any letters in the alphabet A-Z.
Answer the Pre-Algebra problem attached to this.
Answer: x>5
If I Helped, Please Mark Me As Brainliest, Have A Great Day :D
Answer: x is greater than 5
Step-by-step explanation:
9(2(5)-9)-5 greater than 4
9(10-9)-5 greater than 4
9-5 greater than 4
4 greater than 4
So x MUST be greater than 5
What is an equation in slope-intercept form for the line that passes through the points (1, -3) and (3, 1)?
O y = 3x + 1
O y = 2x - 5
O y = 2x + 5
O y = x - 3
HELP ASAP
You move up 3 units. You end at (2, 0). Where did you start?
Answer:
-3, 3
Step-by-step explanation:
What percent of 45 is 7?
show work please?
Answer:
3.15
Step-by-step explanation:
45% can be converted into 0.45 or 9/20. You either multiply 7 by 0.45 or 9/20 to get your answer.
Answer:
3.15 is correct
Step-by-step explanation:
The person above me has all the work needed
What is 2+2 pls help
Answer:
4
Step-by-step explanation:
2 + 2 += 4
This can be solved by addition.
If 2c - 5 = 3d + 4, what does c equal, in terms of d?
Answer:
D. [tex]\frac{3d+9}{2}[/tex]
Step-by-step explanation:
2c - 5 = 3d + 4
Isolate 2c.
2c = 3d + 4 + 5
Simplify.
2c = 3d + 9
(2c ÷ 2 = c) Find c.
c = [tex]\frac{3d+9}{2}[/tex]
Answer:
[tex]d. \: \frac{3d + 9}{2} [/tex]
Step-by-step explanation:
Follow the steps below.
[tex]2c - 5 = 3d + 4 \\ 2c = 3d + 9 \\ c = \frac{3}{2} d + \frac{9}{2} \: or \: c = \frac{3d + 9}{2} [/tex]
So D is correct.
Alex's swimming pool is 9.9 meters long, 12.1 meters wide, and 5 meters deep. Which is closest to the number of cubic meters of water the pool will hold?
Answer:
598.95
Step-by-step explanation:
multiply the 3 numbers for the m3