Answer:
-12
Step-by-step explanation:
5 + -2 = 3
-4 x 3 = -12
Answer:-12
Step-by-step explanation:
3/17 as a percentage
Answer:
3/17×100= approximately 17.6
Step-by-step explanation:
if you have 1,2,4,5,10.20,25,50, you'll multiply both sides by a number that this number when you multiply it by the denominator it will be 100
if any other numbers you can multiply immediately by 100
Q11.
The diagram shows a trapezium.
x-4
Diagram NOT
accurately drawn
2x
x + 5
All the measurements are in centimetres.
The area of the trapezium is 351 cm2.
(a) Show that 2x2 + x - 351 = 0
Answer:
Step-by-step explanation:
The area of a trapezium is given as;
Area = [tex]\frac{1}{2}[/tex](a + b)h
where: a is the length of the upper side, b is the length of its base and h is its height.
This implies that; a = x - 4, b = x + 5, h = 2x and area = 351
Thus,
351 = [tex]\frac{1}{2}[/tex]((x - 4) + (x + 50)) 2x
= (x - 4 + x + 5) x
531 = (2x + 1) x
= 2[tex]x^{2}[/tex] + x
So that;
2[tex]x^{2}[/tex] + x - 531 = 0
This gives a quadratic equation.
please explain denominator and numerator
Answer:
numerator on top
denominator on bottom
Step-by-step explanation:
Sally has 21 books Sam has 24 times more books than sally how many books does Sam have
How do i do this 5th grade math ?
Answer:
2 and 4
Step-by-step explanation:
Question 7
1 pts
Simplify the following expression:
-9(14p - 8) - 4p
-130p + 72
O 122p - 72
0-130p - 18
O 130p - 72
Answer:
Step-by-step explanation:
i
(4t^3-at^2-2bt+5)-(ct^3+2t^2-6t+3)
Answer:
simplify or subtract? ill put the answer in the comments
Step-by-step explanation:
I simplified it this is what i got
−ct3−at2+4t3−2bt−2t2+6t+2
20% tip on a
$30 haircut.
the tip is 15$ im pretty sure
Help with this ASAP thanks
Answer:
15/70, first option
Step-by-step explanation:
if you multiply the numerators and denomenators together, you get 15/70. you're able to reduce this, but it looks like the answer doesn't want you to reduce it :)
=======================================================
Explanation:
We multiply the numbers across the top (numerator) to get 3*5 = 15
Then across the bottom (denominator), we multiply the values to get 10*7 = 70
So we get [tex]\frac{3}{10}\times\frac{5}{7} = \frac{3\times 5}{10\times7} = \frac{15}{70}[/tex]
That's how we end up with 15/70
------------------------------
Extra info:
Note how 15 and 70 have the GCF 5, so we can divide both values by 5
15/5 = 370/5 = 14This means 15/70 reduces to 3/14; however, your teacher has decided not to reduce (since 3/14 is not one of the answers). So that means we should stick with 15/70 instead.
SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!
Answer:
9
Step-by-step explanation:
THE ANSWER Is 9
Answer:
The missing side is 9
Step-by-step explanation:
Th use of the pythagorean thereom
41^2=1681
40^2=1600
1681-1600=81
81 radical thingy = 9
what is equal to 45a-10b
Answer:
45b - 10a
Step-by-step explanation:
Answer:
5(9a-2b)
Step-by-step explanation:
This is a polynomial and you have to factor it.
GCF of 45a and 10b is 5
5(9a-2b)
Branliest would be Appreciated
If the cost of electricity increases by 30% by what percentage one should reduce his spend in order that spends on electricity stays the same?
Answer:
That depend on how much you spend on electricity, and how much other spending you do.
For example: If your electric bill is 100 dollars, and it increases 30 percent to 130, that’s 30 extra dollars. If your electric bill is only 50 dollars, it will increase to 65, that’s an extra 15.
What percentage that increase is of your current spending will vary according to how much you spend. If you only spend 30 dollars, then you’ll need to cut all of it, or half of it to offset the increases I mentioned above. That’s a 100 percent or 50 percent reduction.
If you spend 1000 dollars, you’ll only need to cut spending by 3 percent to get that 30 dollars, or 1.5 percent to get the 15 dollars.
It all depends on your specific values, you can’t say “For every xx percent your electric bill increases, you need to cut spending by yy percent.”
for the consumption of X unit let u spends Y
for X - Y cost
for increased 30% means 13X/10 - 13Y/10 cost
extra money is 13Y/10 - Y = 3Y/10
note: hope this helps :)
thus (3Y/10)/ (13Y/10) *100 % = 300 / 13 = 23.07%.
cos x= 3/4, s in quadrant 1
Answer: x = 41.4°
Step-by-step explanation:
We want to solve:
Cos(x) = 3/4
Such that this is on quadrant 1.
(if x is in degrees, the possible values of x will be: 0° ≤ x ≤ 90°)
To solve this we need to remember the inverse functions.
If we have two functions f(x) and g(x), these functions are inverses if:
f( g(x) ) = x
g( f(x) ) = x
Then the inverse of the cosine function (this function is "arcos(x)") is such that:
Arcos( cos(x) ) = x
Then in our equation:
Cos(x) = 3/4
We can apply the inverse function to both sides to get:
Arcos(Cos(x)) = Arcos(3/4)
x = Arcos(3/4)
(To find the Arcos function in your calculator, you need to use the button "inv" and then the "cos" button, and remember to have your calculator in deg mode)
x = Arcos(3/4) = 41.4°
my 4th time another hunnid points easy right cmon now Your weclome! Cmon dont be rude i just helped you why dont you do me a favor like i did you follow my twitter racks10k follow my insta racksfym cmon now its only right
Answer:
thank you sm!
Step-by-step explanation:
I hope you have a good day / night ^^
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What is the value of 4 to the power of 0?
Answer:
The value to 4 to the power of 0 is 4.
Step-by-step explanation:
Since it is to the power to 0, it would be 4^0. This shows that 4 is not being multiplied to anything.
The equation y =
12 represents a proportional relationship. What is the
constant of proportionality?
A. 12
B. X
C. 1
D. 0
Answer:
The constant of proportionality k = 12
Hence, option A is true.
Step-by-step explanation:
We know that when 'y' varies directly with 'x', we get
y ∝ x
y = kx
Where 'k' is called the constant of proportionality.
In our case,
The given equation is
y = 12x
comparing with the equation y = kx, we can say
k = 12 which is the constant of proportionality.
Therefore, we conclude that:
The constant of proportionality k = 12
Hence, option A is true.
3x3-5/5x6+19 i don’t know what I’m don’t wrong
Hi there!
For these two equations, we would be using PEMDAS...
[tex]3[/tex]·[tex]3=9-5=4[/tex]
[tex]5[/tex]·[tex]6=30+19=49[/tex]
Hope this helps!
what is 100 divided by 52
1.92307692308
Hope this helps! :D
1. — 2X >6
How do you solve this
Answer:
x<-3
Explanation:
Divide both sides by -2 to isolate x.
Since you have divided by a negative number and it changed the positive number to a negative one, you'll need to change the direction of the sign to now reflect that.
I hope that helped!
sana tama po
please help me asap thank you !!
Answer:
x = 3
Step-by-step explanation:
Measure of a triangle is 180° degree.
.·. 46 + 105 + 6x + 11 = 180
.·. 162+6x=180
.·. 6x=180-162
.·. 6x= 18
.·. x= 18/6
.·. x= 3
Help plz!!! Will give brainliest
Answer:
my class worked on this today im pretty sure its the first one!! good luck❤❤
kevin is trying to find the height of a tree. he stands 100ft away from the tree and records the angle of elevation to the top of the tree to be 26. Kevins height is 6ft. how tall is the tree?
Answer:
HERES YOUR ASSIGNMENT! I EDITED IT ON MICROSOFT SO THAT I CAN SCREENSHOT IT AND SEND IT TO YOU...I HOPE IT HELPS :)
ARIGATO OZAIMASU!!!Renae drives a delivery can on the weekends
She had a total of 12 3/4 gallons of fuel Renae knows that ever gallon fbfuel she can travel 21 miles of she uses all her Fuel how many miles will she travel
Answer:
267 3/4 miles
just do 12 3/4*21
CALCULUS: For an object whose velocity in ft/sec is given by v(t) = sin(t), what is its distance, in feet, travelled on the interval t = 1 to t = 5?
A. 0.45
B. 2.82
C. 0.03
The linked answer is wrong because that integral gives you the net displacement of the object, not the total distance.
To get the distance, you have to integrate the speed (as opposed to velocity), which involves integrating the absolute value of the velocity function.
[tex]\mathrm{distance} = \displaystyle\int_1^5 |\sin(t)| \,\mathrm dt[/tex]
By definition of absolute value,
[tex]|\sin(t)|=\begin{cases}\sin(t)&\text{for }\sin(t)\ge0\\-\sin(t)&\text{for }\sin(t)<0\end{cases}[/tex]
Over this particular integration interval,
• sin(t ) ≥ 0 for 1 ≤ t < π, and
• sin(t ) < 0 for π < t ≤ 5
so you end up splitting the integral at t = π as
[tex]\mathrm{distance} = \displaystyle\int_1^\pi \sin(t)\,\mathrm dt + \int_\pi^5 (-\sin(t))\,\mathrm dt[/tex]
Now compute the distance:
[tex]\mathrm{distance} = -\cos(t)\bigg|_1^\pi + \cos(t)\bigg|_\pi^5[/tex]
[tex]\mathrm{distance} = -(\cos(\pi) - \cos(1)) + (\cos(5) - \cos(\pi))[/tex]
[tex]\mathrm{distance} = -2\cos(\pi) + \cos(1) + \cos(5) \approx 2.82[/tex]
making B the correct answer.
Hayden invested $200 in a savings account that earned 3.3% simple interest each year. William invested $300 in a savings account that earned 2.5% simple interest each year. Neither Hayden nor William add or take out money from their accounts. Hayden claims that she will earn more interest on her account than William after 2 years because she has a greater interest rate. Do you agree with Hayden? Why or why not? Be sure to defend your answer with numbers.
Answer:
No i do not agree
Step-by-step explanation:
1) The sum of a number and 13 is 47. What
is the number?
Write the equation
Answer:
13+34=47
Step-by-step explanation:
Let us call the number x
13+x=47
so we can assume
47-13=x
47=13=34
13+34=47
What is 1 3/4 times 2/7 equal to?
Answer:
I believe it would equal .5
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
1 3/4 is equal to 7/4.
7/4 times 2/7;
you can cancell to get rid of the sevens so it is 1/4 times 2/1
you can also cancel the two and convert the 4 to a two; 1/2 times 1
so the answer is 1/2.
Hope this helps :).
What is the angle measured on the protractor? Please help I’m confused. Thanks!!
Answer:
85
Step-by-step explanation:
The line of the right measures 65 degrees (I think), an the line on the left measures 150 degrees. So, 150 - 65 = 85 degrees.
Answer:
85
Step-by-step explanation:
The measure of an angle is the degrees between the initial and terminal sides of the angle.
Need Help! The questions in the png
Answer:
what
Step-by-step explanation:
2+3(6 - 7 ) 5 - 2 ( 9 + 4 ) =
Answer: -39
Step-by-step explanation: