Answer:
Step-by-step explanation:
The straight line equation is:
y = m*x + b Where m is the slope of the line and b the intercept with y-axis, in our case y is the depth of the tank and x (time in lapsus of 3 hours).
The slope m = ( y₂ - y₁ ) / (x₂ - x₁)
We have point A ( 3 , 8 ) and point B ( 6 , 7 )
m = ( 6 - 3 ) / (7 - 8 ) m = -3
We see that each 3 hours time-depth decreases 1 in.
Then to find the depth at the beginning of x-axis
At noon 12 tank was 9 inches, three hours before at 9 in the morning the depth was 10 inches and:
9 in the morning 10
6 in the morning 11
3 in the midnight 12
12 in the night 13
Then 13 is the intercept with y-axis
then the equation is:
h = - 3*x + 13
Note x is time in lapsus of 3 hours
what is За – 2а x 4а + ба
Answer:
10a-3,7a-2,3a-9
1)4a+ 6a-3
10a -3
2)3a+ 4a -2
= 7a - 2
3) 2-3a+7
= 7+2-3a
= 9-3a
How many of the ways that 27 cents can be made using quarters, dimes, nickels, and pennies use an odd number of coins
I believe the answer is 13 ways to make 27 cents using Quarters, dimes, nickels, and pennies.
Step-by-step explanation:
What is the solution set for 10x < 30
jax earns $14 per hour working at the dog kennel. write and solve an inequality that can be used to find how many hours he must work to earn greater than $168
factor 3v+12w
write your answer as a product with a whole number greater than 1.
Answer:
3 (v+4w)
Step-by-step explanation:
you could factor out 3 which is a whole number greater than 1.
i hope this help!
Manuel made $6000 in taxable income last year. Suppose the income tax rate is 15% for the first $8500 plus 18% for the amount over $8500. How much must Manuel pay in income tax for last year? s0 ?
Answer:
the income tax paid for the last year is $900
Step-by-step explanation:
The computation of the income tax paid for the last year
Taxable income is $6,000
And, the 15% tax rate is charged for first $8,500
So the income tax paid is
= $6,000 × 15%
= $900
hence, the income tax paid for the last year is $900
The same is considered by doing the above calculation
Help me people I need it
The perimeter of the triangle shown below is 44 centimeters. Find the value of x.
2x + 1
3x
2(x + 4)
Answer:
this is the answer sorry for the late reply
What factoring method do you use to factor u²+70
1) difference of
squares
2) GCF
3) not foctorable
4) factor trinomial
Answer: 3) Not factorable
We cannot use the difference of squares method because we don't have a subtraction going on (ie "difference") and we don't have two perfect squares. The value 70 is not a perfect square.
We cannot factor out a GCF since the GCF here is 1, and that doesn't really affect things. Choice 4 is also not applicable because we don't have a trinomial. A trinomial has three terms.
What is the solution to this system of linear equations?
x - 3y = -2
x + 3y = 16
O 1.3
O (3.7)
O2-3)
O (-3,-2)
Answer:
(3,7)
Step-by-step explanation:
x-3y=-2 -----equation i
x+3y=16-----equation ii
Subtract the two equations from each other
-6y=-18
-6y/-6=-18/-6
y=3
Substitute for x in equation i
x-3(3)=-2
x-9=-2
x=-2+9
x=7
x=7,y=3
Answer:
X is 7, and Y is 3.
Step-by-step explanation:
Step 1: Add 3y to both sides
x - 3y + 3y = -2 + 3y
x = 3y - 2
Step 2: Substitute 3y - 2 for x in x + 3y = 16
x + 3y = 16
3y - 2 + 3y = 16
Step 3: Simplify both sides of equation
6y - 2 = 16
Step 4: Add 2 to both sides
6y - 2 + 2 = 16 + 2
6y = 18
Step 5: Divide both sides by 6
6y/6 = 18/6
y = 3
Step 6: Substitute 3 for y in x - 3y = -2
x - 3(3) = -2
Step 7: Multiply 3 by 3 for 9
x - 9 = 2
Step 8: Switch sides!
x = 9 - 2
Step 9: Subtract 9 minus 2 to get 7
x = 7
With that we have our final answers: x = 7, and y = 3.
Hello mee need help I’m going to get a whooping because I’m failing.
Answer:
number 1,2,4
Step-by-step explanation:
these are all equal sides
I was confused over this particular question. if you could help, I'd really appreciate it.
Step-by-step explanation:
The 1st equation is in slope-intercept form.
=> Slope = 4
The 2nd equation is in point-slope form.
=> Slope = -1/4
Since their slopes are unequal,
The lines are not parallel to each other.
However the product of their slopes is -1,
Therefore the lines are perpendicular to each other.
The answer is the 2nd option.
Find the equation of the line.
Use exact numbers
Answer:
[tex]y=-\frac{1}{3} x+5[/tex]
Step-by-step explanation:
This question is asking for slope-intercept form which is y=mx+b, where m is the slope and b is the y-intercept. First, find the slope; this can be done in two ways, counting change in y and x then dividing, or using the formula [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]. Either way for this graph the slope comes out as -1/3. Next, find the y-intercept, this is where the line intersects with the y-axis. In this case, the line touches the axis at 5, therefore 5 is the value of b.
Find the solution to the systems of equations using the elimination method.
2x + 3y = 11
5x + 3y = 14
Answer:
x = 1 ; y = 3
Step-by-step explanation:
5(2x + 3y = 11)
2(5x + 3y + 14)
(distribute)
10x + 15y = 55
10x + 6y = 28
(subtract)
9y = 27
(divided 9 to both sides)
9 divided by 9 cancels out and 27 divided by 9 = 3
so..
y = 3
now, using any equation, (i’ll be using 2x + 3y =11) plug in the y value to find the x value
2x + 3y = 11
2x + 3(3) = 11
(multiply 3 x 3)
2x + 9 = 11
(subtract 9 from 9 and 11)
2x = 2
(divide 2 from both sides)
2 divided by 2 = 1
therefore...
x = 1
please help struggling lol
Answer:
um i think 58
Step-by-step explanation:
Tammy and Jay go out to dinner. Their total bill, including tax, comes out to $46.14. Once they add tip, they end up spending $53.98. What percent tip did they give? (Round to the nearest percent).
Another ASAP
Please don't put a wrong answer, if so your answer will be deleted. Thank you for your time!
Answer:
y=6
Step-by-step explanation:
y=4x-2
y=4(2)-2
y=8-2
y=6
Hope it helped!
A ladder leaning against a vertical wall makes an angle of 35 with the ground. The foot of the ladder is 3 meters from the base of the wall What is the
length of the ladder to the nearest tenth?
Answer:
6.1
Step-by-step explanation:
SOH-CAH-TOA
cos35=5/x
x=5/cos35
x=6.1m
subtract 24ab-10b-18a from 30ab+12b+4a
Answer:
-6ab-22a-22b
Step-by-step explanation:
A rectangular ground has the breadth 80percent of length and perimeter is 360m. Find the cost of planting the ground at Rs 8 per m^2
Answer:
Rs 64000
Step-by-step explanation:
Since breadth B = 80% of length L, B = 0.8L
Perimeter, P = 2(L + B) = 360m
Substituting B = 0.8L into P, we have
2(0.8L + L) = 360 m
2(1.8L) = 360 m
3.6L = 360 m
L = 360m/3.6
L = 100 m
So, B = 0.8L = 0.8(100 m) = 80 m
The area of the rectangular ground is A = LB = 100 m × 80 m = 8000 m²
So, the cost of planting the ground at Rs 8 per m² is Rs 8 per m² × 8000 m² = Rs 64000
3x - 5 = 1/2x + 2x solve the equation and please show your work im confused x =___
dont look it up
Answer:
X=2.5
Step-by-step explanation:
3x - 5 = 1/2x + 2x
3x - 1/2x - 2x = 5
1/2x = 5
X = 5 ÷ 1/2
X = 2.5
One of the legs of a right triangle measures 15 cm and its hypotenuse measures 17 cm. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer:
8
Step-by-step explanation:
The Pythagorean theorem shows us that the measure of the sides in a right triangle can be calculated using the formula a^2 + b^2 = c^2. Using this formula, and filling in the blank, we can conclude that the other leg measures 8 cm.
Answer:
15
Step-by-step explanation:
will give brainliest :)
does force change in position
yes
no. or
it depends
Answer:
no but they can change in speed
Answer:
it depends
Step-by-step explanation
when there is a force its moving from some kind of energy ex: gravity
so when its faced with different energy it could change in position
What is the perimeter of the triangle?
units
Stuck? Watch a video or use a hint.
Report
in 10000$ in 12%intrest for 2 years how much interest you get??
Here,
amount (p) =10,000$
Time period (t)=2 years
Rate of interest (r)=12%
So,Intrest (I)
we know that,
[tex]\boxed{ I=\dfrac{p×t×r}{100 }[/tex]
According to the question,
I=⠀[tex]\tt{\dfrac{10000×12×2}{100} }[/tex] ⠀
=[tex]\tt{\dfrac{\cancel{10000}×12×2}{\cancel{100}} }[/tex] ⠀
=[tex]\tt{ 100×12×2 }[/tex] ⠀
=[tex]\tt{ 2400 }[/tex] ⠀
So,
2400$ intrest in 10000$in 12%for 2 years
i- i just need help at this point...
Answer:
(2.8-3.5)/3.5=-.2 (100)=20%
Percent error is 20%
formula to fin percent error is ((approx-exact)/exact)(100)
Step-by-step explanation:
Find the rational number between 2 and 3
Heyyy friend.!!!! Hope it helps uh....
A notebook is $3 more expensive than a
pen.
three notebook and four pens cost $44.
How much does one notebook cost?
How much does one pen cost?
Step-by-step explanation:
4 for a pen
7 for 1 note book
If 2/3 of the distance from the y-axis to point A (−30, −45) is equal to 1/4 of the distance from the x-axis to point B(a, a), where a > 0, what is the value of a?
50pts + BRAINLIEST
A n s w e r : .
a = 40
Solve 9x-17=5x-1
What is x?
Answer: x=4 hope this helps:)
Step-by-step explanation:
Answer:
x=-4
Step-by-step explanation:
9x-17=5x-1 isolate X
9x-17=5x-1 add +1 to each side of the equation 9x-17+1=5x-1+1 the ones cancels out... 9x-16=5x
add -9x to both sides..... 9x-16+9x=5x-9x...... 9x-9x-16=5x-9x
-16=5x-9x subtract 5x-9x
-16= - 4x divide both sides by -4
-4=x or x=-4
-