Answer:
x>-4 x≤-8
Step-by-step explanation:
A motorboat travels 275 kilometers in 5 hours going upstream. It travels 405 kilometers going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?
Step-by-step explanation:
[tex]275 \times 5 = 1375 [/tex]
The rate of the motorboat on still water is 1375
[tex]405 \times 5 = 2025[/tex]
The current rate of the motorboat is 2025
How many significant figures are in
246.000m?
Answer:
6
Step-by-step explanation:
The zeroes after the comma/full stop are significant...providede there is a non zero value in from of them just like the question posted
another example is 2300>>4significant digits or 0.00678 which has 3 significant digits.
hope this makes sense
:)
Jk=7x+9
Jl 114, and
Kl =9x+9
Answer:
KL=63
Step-by-step explanation:
Answer:
Step-by-step explanation:
Kl=63
(4d−6d3+3d2)−(10d3+7d−2) find the difference
Answer: -16d³ + 3d² - 3d + 2
Step-by-step explanation:
Given expression
(4d - 6d³ + 3d²) - (10d³ + 7d - 2)
Expand parentheses
(REMEMBER to change [+, -] signs when there is a [-] sign in before)
=4d - 6d³ + 3d² - 10d³ - 7d + 2
Put like terms together
=-6d³ - 10d³ + 3d² + 4d - 7d + 2
Combine like terms
=(-6d³ - 10d³) + 3d² + (4d - 7d) + 2
=[tex]\boxed{-16d^3+3d^2-3d+2}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Answer:
-16d³ + 3d² -3d + 2
Step-by-step explanation:
(4d−6d³+3d²) − (10d³+7d−2) =
-6d³ - 10d³ + 3d² + 4d - 7d + 2 =
-16d³ + 3d² -3d + 2
Solving equations and inequalities.
I’m confused on the subtraction behind the one, am I supposed to turn the one into a negative?
1-(4+3x)<-3
Answer:
x>0
Answer to your question:
Because the subtraction sign is after the negative, it applies to the term in front of it, in this case because there is a parenthesis, it would multiply into that and your equation from there would be 1-4-3x<-3. Then combine like terms from there.
Part B
Can image 2 be the reflected figure? Explain your answer.
Answer:
Yes it can be be the reflected figure
Complete the simplified ratio.
40 min : 3 hours
Answer:
math question? u can ask on
Can you please help me solve this problem! And can you add step by step, please! Not really sure what to do?
Answer:
quadrilateral has 4 sides
so 104°+40°+110°+x=360°
254°+x=360°
collect like terms
x=360-254
x= 106
;- x=106
which is (c)
Answer:
x = 106°
Step-by-step explanation:
Using the angle marked 110° as my starting point,
One can use angles on a straight line sum up to 180° to find the angle that adds up to 110° which makes it 180,
thus 70°.
moving on,
tackling with the angle marked 40°, Using the fact that angles on a straight line sum up to 180°, the angle obtained will be 140° (40° + a = 180, a = 180° -40°, a = 140°)
Using the angle marked 104°, Just like the previous one Using the principle that angles on a straight line sums up to 180°, then the unknown angle will be 76°.
Finding all the other interior angles angles in the quadrilateral except the angle in line with the x,
the next step to take is to add up all the angles Using any variable and equate it to 360°
why? angles in this type of quadrilateral equals 360,
That is,
140° + 76° + 70° + y = 360
286 + y= 360
y = 360 - 286
y = 74
The final step now is to use the principle, ( angles on a straight line sums up to 180)
74° + x = 180
x = 180 - 74
x = 106°
Find the inverse of the following
F(x) = 1/2x-1
How would I simplify this expression
Answer:
-3 - 16b
Step-by-step explanation:
by simply doing the multiplication and then add combinable terms.
9 - 4(3 + 4b) = 9 - 12 - 16b = -3 - 16b
Explanation:
Let's simplify step-by-step:
9-4(3 + 4b)
Distribute:
= 9 + (-4)(3) + (-4)(4b)
= 9 + (-12) + (-16b)
Combine Like Terms:
= 9 + (-12) + (-16b)
= (-16b) +(9 + (–12) )
= -16b + (-3)
Answer:
-16b + (-3)
Xian and his cousin Kal both collect stamps. Xian has 52 stamps, and Kal has 68 stamps. The boys recently
joined different stamp-collecting dubs. Xian's club will send him 20 new stamps per month. Kai's club will
send him 16 new stamps per month. After how many months will Xlan and Kal have the same number of
stamps? How many stamps will each have?
Answer:
In 4 months, they will both have 132 stamps.
Step-by-step explanation:
Let x = # of months
52 + 20x = 68 + 16x
4x = 16
x = 4
Plug x value into both expressions and see if it checks out
52 + 20(4) = 68 + 16(4)
52 + 80 = 68 + 64
132 = 132
EMERGENCY A speeding ticket costs $80 plus $10 for each mile per hour over the speed limit the violator was traveling. How much would someone going 12 miles per hour faster than the speed limit have to pay for their ticket?
Answer:
$200
Step-by-step explanation:
Fine calculated per mile = $10
Fine calculated for 'm' mile = 10 * m = 10m
Cost paid by violator = 80 + 10m
m = 12 miles
Cost paid by the violator = 80 + 10*12
= 80 + 120
= $ 200
PLS HELP ITS URGENT
Answer:
Surface area=48 in^2
See the image for solution
12^8/12^4=
or
12^8
----- =
12^4
Answer:
[tex] \frac{ {12}^{8} }{ {12}^{4} } \\ = \frac{ {12}^{4} \times {12}^{4} }{ {12}^{4} } \\ = {12}^{4} =20736 \\ thank \: you[/tex]
Here's the solution :
[tex] \hookrightarrow \dfrac{12 {}^{8} }{ {12}^{4} } [/tex]
[tex] \hookrightarrow 12 {}^{8} \times {12}^{ - 4} [/tex]
[tex] \hookrightarrow12 {}^{4} [/tex]
what is the sum for the 20th row and the 50th row
Answer:
Step-by-step explanation:
lkj
PLEASE HELP!!!!!! Im being timed
Answer:
9,6 hope this helps
4 workers can dig 4 holes in 4 hours, how long will it take to dig 6 holes with 2 workers
Answer:
12 hours
Step-by-step explanation:
each worker digs a hole and takes 4 hours doing so
2 workers dig 3 holes each, 3*4=12, 12 hours
Answer:
12 hours
Step-by-step explanation:
4 workers can dig 4 holes in hours=4
1 worker ,, ,, 4 ,, ,, ,, =4×4=16
1 ,, ,, ,, 1 hole ,, ,, =16÷4=4
2 ,, ,, ,, 1 ,, ,, ,, =4÷2=2
2 ,, ,, ,, 6 holes ,, ,, =2×6=12
NEED HELP ASAP
Find the length of the arc
Answer:
C
Step-by-step explanation:
There are two arcs a major and a minor arc. You should never have to rely on a diagram to get the right answer.
The circumference is 2 * pi * r
r = 6 km
C = 2* pi * 6
C = 12 pi
The arc size is
arc size = 135 / 360 * 12pi
arc size = 3/8 * 12 pi
arc size = 4 1/2 pi = 9 pi /2 km
Tom is selling tickets for a school show.
Tickets cost £4.50 if booked in advance,
and 10% extra if bought on the night.
In total 65 tickets are sold, of which 22 are bought on the night.
How much money is spent on tickets altogether?
wrie down the equation of the line that is parallel to 4x - 2y = 7 and passes through (9, -3)
Answer:
4x-2y =42 is the required equation
Step-by-step explanation:
given equation is,
4x-2y -7=0---------eqn1
parallel equation of given equation is
4x -2y+k =0-------eqn 2
now passing it through (9,-3), we get,
4×9 + 2×3 +k = 0
or,36+6+k =0
or,42+k =0
or, k= -42
putting the value of k in eqn2
4x-2y - 42=0
4x-2y = 42
A number minus
11 is 3. How do you right it as a equation
THE Answer is
x-11=3
??
and the number is 14
Answer:
X - 11 = 3
Step-by-step explanation:
3 is the answer and 11 is the part that is being subtracted. In subtraction the smaller number comes second which is why the question says minus 11.
Equation 2x²-5x+1 has roots alpha and beta. Form quadratic equation with roots (alpha² + 1/alpha²) and (beta²+1/beta²)
Step-by-step explanation:
please see in the picture below.All step by step procedure
what is the domain and range
f(x)=x^3
Answer:
Step-by-step explanation:
The domain is X value and range is Y so just put y=x^3 in desmos and the graph appears then check its range and domain from it. the range is positive and nevative infinity
Pv=nrt slove for n
I need this slove for n
Answer:
n = Pv/rtStep-by-step explanation:
Given:
Pv = nrtTo solve for n first isolate n:
nrt = PvDivide both sides by rt:
nrt/rt = Pv/rtn = Pv/rt[tex]\\ \sf\longmapsto Pv=nrt[/tex]
[tex]\\ \sf\longmapsto nrt=Pv[/tex]
[tex]\\ \sf\longmapsto nr=\dfrac{Pv}{t}[/tex]
[tex]\\ \sf\longmapsto n=\dfrac{Pv}{rt}[/tex]
The area of a campground is exactly halfway between 25.9 acres and 26 acres . What is the area of the compound?
We have an algebra problem. Here we want to find the mid-value between 25.9 acres and 26 acres, we will find that the area of the compound is 25.95 acres.
For two given numbers A and B, such that A < B, the mid-value between these is given by:
A + (B - A)/2.
In this case, our two numbers are 25.9 and 26.
Using the above formula we get:
25.9 + (26 - 25.9)/2 = 25.95
Then we can conclude that the area of the compound is 25.95 acres.
If you want to learn more, you can read:
https://brainly.com/question/16871453
g(x) = 3x2 – 2x +7
2x + 5
Find g(-1)
Answer:
ans...g(-1) is 4 . Is it true?
g( ‐1 ) = 7
Step-by-step explanation:
substitute your (x) value with ( ‐ 1)
The diameter of a circle is 16 in. Find its area in terms of π
Answer:
64[tex]\pi[/tex]
Step-by-step explanation:
A=[tex]\pi r^{2}[/tex]
Divide 16 by two to get the diameter: 8
Square 8: 64
Since the answer is in terms of pi, the answer is 64[tex]\pi[/tex]
Answer:
64 π
Step-by-step explanation:
Diameter = 16 inches
Radius = 16/2 = 8 inches
Area of circle = πr²
= π(8)²
= 64 π sq inches
The mean of 3 numbers is 7.two numbers are 4 and -5
Find the third number
Step-by-step explanation:
(-5+4+x)÷3=7
-5+4+x=21
x=21-4+5
x=22
l don't
know about this thing
Given that
a
= 3 cm and
b
= 21 cm, work out
θ
rounded to 1 DP.
Answer:
I am sorry I not no
this question
Step-by-step explanation:
sorry dear friend
Solve for the value of k
Answer:
4k-7 + 3k+ 6 = 90
7k -1 = 90
7k = 91
k=13
Step-by-step explanation:
Notice that if we add the 3 angles in the image, the outcome should be an angle of 180° (the one of the line alone)
With this, we will found that the answer is k = 13
Let's do the math, for the initial information we can write:
(4k - 7)° + 90° + (3k + 6°) = 180°
Where the 90° comes from the right angle, the one written with a little square.
Now we can solve this for k
(4k - 7)° + 90° + (3k + 6°) = 180°
(4k + 3k)° + (-7° + 90° + 6°) = 180°
7°k + 89° = 180°
7°k = 180° - 89° = 91°
k = 91°/7° = 13
So we found that the value of k is 13.
If you want to learn more, you can read:
https://brainly.com/question/13690593