Answer:
20 hats
Step-by-step explanation:
If one boy had two hats, and there were ten boys, you would simply multiply 10 by 2! that gets you 20, which is your answer!
You can think of it as instead of each boy having one hat (which would make it ten hats in total), they'd have double of ten, making it 20!
I hope this helps!
While paying a bill, a man pay RS 189.80as the amount of VAT at .13%. How much was actual bill
Answer:
RS 146189.8
Step-by-step explanation:
let the price before tax be p
hence the final amount paid (i.e the actual bill)
= price before tax + tax
= p + (0.13% of p) (convert percentage into fraction)
= p + [ (0.13/100) x p] ---------------(eq 1)
we are given that the tax (i.e VAT) = 189.80
hence,
[ (0.13/100) x p] = 189.8
0.13p = (100)(189.8)
p = (100)(189.8) / 0.13
p = 146000
hence our eq 1 above becomes:
p + [ (0.13/100) x p]
= 146000 + 189.8
= 146189.8
I need help on this one. it says solve for w. and it says w-8=32. will someone help plz thx.
Answer:
w= -4
Step-by-step explanation:
First we know 8 x 4 is 32 so then we make the 8 negative
and divide -8 by 32 which is -4
You can check it by doing -4 x -8 which is 32!
Remember-
1. When you multiply two negatives it equals a positive.
2. You can check by plugging -4 where w is then solving.
3. If there is a subtraction next to a number (w-8) then whichever number the subtraction sign is in front of is negative.
4. If a variable is next to a number it means to multiply the variable by the number.
PLZZ HELP!
Calculate the Discriminant
Equation
Discriminant
Correct?
2x2 + 5x – 3 = 0
D=
Not yet
x2 + 7x + 2 = 0
D=
Not yet
3x2 - 12x + 12 = 0
D=
Not yet
5x2 – 2x – 11 = 0
D=
Not yet
x2 – 5x + 8 = 0
D=
Not yet
determine whether the relation is a function. if the relation is a function determine whether it is linear or not linear
Answer:
We conclude that the relation is a function but it is not a linear function.
Step-by-step explanation:
The given table represents a function because each input or x-value is related to exactly one output or y-value.
In other words, there is no repetition of 'x' values. This indicates that the given relation in the table represents a function.
In order to check whether the function is linear or not linear, we need to check how x and y values change.
The table indicated that x increases by 2, now we need to determine whether the y-values increases at a constant rate or not. For this, we need to find the first difference between y-values.
-3 - (-8) = 5
3 - (-3) = 6
7 - 3 = 4
As the first difference between the consecutive y-values is not constant, meaning that y-values do not increase at a constant rate as x-values increase by 2.
Thus, it is not a linear function,
Therefore, we conclude that the relation is a function but it is not a linear function.
pleaseee help me its due by tonight thanks :D
Answer:
C. NegativeB. PositiveC. NegativeC. NegativeA. ZeroExplanation:
1.) 3.2 - 5.7 = -2.5
2.) 4.25 - (-2.3) = *double negative = positive* = +6.55
3.) -0.18-2 = -2.18 *2 negatives will add numbers, but the sign remains negative*
4.) -9 + 2.5 = -6.5 *since 9 is greater, we will use its sign, then subtract the two*
5.) (-9 + 5) +4 = -4 +4 = 0
3.2-5.7=C
4.25-(-2.3)=C
-0.18-2=C
-9+2.5=C
-9+5=4=B
The number y is equal to 5 more than 15 times .Which of the following equations could be used to find the value of y?
y=5x+15
y=5x-15
y=15x+5
y=15x-5
Answer:
Third choice.
Step-by-step explanation:
y = 15x + 5.
What is 1 1/3 as a percent pls?
Answer:
133.3333333333333333%
Step-by-step explanation:
never ending 3
Answer:133.3%
Step-by-step explanation:
Which of these numbers is irrational?
A. 35
B. 5
C.
O D. -3.5
Answer:
the answer is 35
Step-by-step explanation:
it is a very messy number if your square root it
None of the given numbers are irrational numbers as they can be expressed in the form of p/q.
What are irrational numbers?An irrational number is a number that cannot be expressed as a fraction p/q for any integers {p} and {q}.
Given are the numbers in the options.
None of the given numbers are irrational numbers as they can be expressed in the form of p/q.
Therefore, None of the given numbers are irrational numbers as they can be expressed in the form of p/q.
To solve more questions on rational and irrational numbers, visit the link below -
https://brainly.com/question/17450097
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3(-2 - n) = -9 -4n answer
Answer:
n = -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesStep-by-step explanation:
Step 1: Define equation
3(-2 - n) = -9 - 4n
Step 2: Solve for n
Distribute 3: -6 - 3n = -9 - 4nAdd 4n to both sides: -6 + n = -9Add 6 to both sides: n = -3Step 3: Check
Plug in n to verify it's a solution.
Substitute: 3(-2 - -3) = -9 - 4(-3)Simplify: 3(-2 + 3) = -9 - 4(-3)Add: 3(1) = -9 - 4(-3)Multiply: 3 = -9 + 12Add: 3 = 3Which of the following completes the proof?
Triangles ABC and EDC are formed from segments BD and AC, in which point C is between points B and D and point E is between points A and C.
Given: Segment AC is perpendicular to segment BD
Prove: ΔACB ~ ΔECD
Reflect ΔECD over segment AC. This establishes that ∠ACB ≅ ∠E'C'D'. Then, ________. This establishes that ________. Therefore, ΔACB ~ ΔECD by the AA similarity postulate.
translate point E' to point A; ∠E'D'C' ≅ ∠ABC
translate point D' to point A; ∠E'D'C' ≅ ∠BAC
translate point D' to point A; ∠D'E'C' ≅ ∠BAC
translate point E' to point A; ∠D'E'C' ≅ ∠BAC
From the given question, the required answer is option D. It can be deduced that: Reflect ΔECD over segment AC. This establishes that ∠ACB ≅ ∠E'C'D'. Then, (translate point E' to point A). This establishes that (∠D'E'C' ≅ ∠BAC). Therefore, ΔACB ~ ΔECD by the AA similarity postulate.
Rigid transformation is a process of resizing a given shape or figure. This can be done by either increasing or decreasing its dimensions (size) or changing its orientation. Some of the methods required in rigid transformation are: reflection, translation, rotation etc.
From the given question,
if ΔECD is first reflected over (turned about) segment AC, it would be deduced that m∠ACB ≅ m∠E'C'D' = [tex]90^{o}[/tex](right angle principle).
Then, the next process is to translate (extend) point E' to point A, so that m∠D'E'C' ≅ m∠BAC.
This would also ensure that m∠E'D'C' ≅ m∠ABC due to the translation.
This implies that ΔACB ~ ΔECD by the AA similarity postulate.
Therefore, performing reflection and translation operations on ΔECD step-wisely can be used to prove that ΔACB ~ ΔECD by the AA similarity postulate.
A sketch for more clarifications is herewith attached to this answer.
For more clarifications, visit: https://brainly.com/question/20486329
Answer:
its d, i took the test
(at the bottom of the photo it says earned 1 point meaning it right)
help :D i don’t understand number 8 or 9
Answer:
If the rate of change is -3, just subtract -3 from 14 (or make the equation to help you).
_________________________________________________________
The equation for the first one is:
y = -3x + 14
When you plug in the x values, you get the y values:
(-2, 20), (1, 11), (3, 5), (4, 2), (6, -4)
For the second one, the start value is 2, meaning that is is y. This means that when 2 is plugged in for y, the result is 0 (x). Now we can make the equation:
y = 0.4x + 2
When you plug the x values in, you get the y values:
(-1, 1.6), (1, 2.4), (4, 3.6), (5, 4), (10, 6)
_________________________________________________________
Calculate the value of 4x2 + xy when x = 3 and y=-2.
Answer:
Step-by-step explanation:
4x squared + xy
4x(4x) + xy
12(12) + 3 x 2
144 + 6
= 150
Are these expressions equivalent 2(3x + 5) = 6x + 5?
Answer:
no
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
2(3x+5)=6x+5
6x+10=6x+5
not equal
solve for x pls help me
Answer:
90
Step-by-step explanation:
circumference of total circle = 16 pi
16 pi / 4 pi = 4
1 / 4 =25%
1/4 * 360 = 90
What is the answer? Also can u help with the working out.
Answer:
Step-by-step explanation:
A. y= -x+2. The -x makes the line go from left to right. The points are (0,2)(2,0)
B. 3y=2x-1 points are (2,1)
4y – 9 = -63
Someone, please help me find the steps of this equation!!
HELP ME PLEASE!!!
Answer:
The answer is y=-13.5
Step-by-step explanation:
4y-9=-63
add 9 from both sides because it's negative
4y=-54
divide both sides by 4 to isolate the variable
y=-13.5
Answer:
4y-9=-63
add 9 from both sides because it's negative
4y=-54
divide both sides by 4 to isolate the variable
y=-13.5
Plot the image of point D under a dilation about the origin (0,0) with the scale factor of 2.
Answer:
-6,-4
Step-by-step explanation:
Multiple each point by 2
The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The image of point D under a dilation about the origin (0,0) with a scale factor of 2 is at (-6, -4)
The graph is given below.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
Point D coordinates = (-3, -2)
The point is dilated with a scale factor of 2.
This means,
Multiply the coordinate with 2.
(-3, -2) becomes (-6, -4)
Thus,
The image of point D under a dilation about the origin (0,0) with a scale factor of 2 is at (-6, -4)
The graph is given below.
Learn more about coordinates here:
https://brainly.com/question/13118993
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A triangle has sides with lengths of 72 millimeters, 90 millimeters, and 54 millimeters. Is it a right triangle?
Answer:
Yes, it is a right triangle.
Step-by-step explanation:
a^2+b^2=c^2
The longest side is the hypotenuse so c^2 would be 90.
72^2+54^2=90^2
72 and 54 can be either a or b.
Solve for all exponents: 5184+2916=8100.
That equation is true, so the triangle is a right triangle.
The local farm market sell peppers at five for $2.25
Answer:
Wait what is the question?
what would be the slope intercept form?
Answer:
[tex]y=\frac{7}{2} - 4[/tex]
Step-by-step explanation:
y = mx + b
Where M is the slope and b is the Y-intercept
⚠️⚠️ Find the correct for each input. Then, tell whether the function is linear or nonlinear ⚠️⚠️
Answer:
-1, -7
1, 3
3, -1
5, -5
Step-by-step explanation:
Find the argument of the complex number -3–9 in the interval 0°< ϴ < 360°,
rounding to the nearest tenth of a degree if necessary.
Answer:
[tex]\theta=251.6^\circ[/tex]
Step-by-step explanation:
Complex Numbers
They are expressed as the sum of a real part and an imaginary part:
[tex]Z = a+b\mathbf{ i}[/tex]
Complex numbers can also be expressed in polar form:
[tex]Z = r(\cos\theta+\sin\theta \mathbf{ i}) = r. cis(\theta)[/tex]
Where r is the modulus of the complex number and θ is the argument.
The argument can be calculated by:
[tex]\displaystyle \tan\theta=\frac{b}{a}[/tex]
The angle θ must be calculated in the appropriate quadrant depending on the signs of the real and imaginary parts.
The complex number is given as:
[tex]Z = -3 -9\mathbf{ i}[/tex]
Here: a=-3, b=-9
Since both components are negative, the argument lies in the third quadrant (180° < θ < 270°).
[tex]\displaystyle \tan\theta=\frac{-9}{-3}[/tex]
[tex]\displaystyle \tan\theta=3[/tex]
[tex]\theta=\arctan(3)[/tex]
The calculator gives the answer 71.6°, we need to adjust the angle to the third quadrant by adding 180°, thus
[tex]\mathbf{\theta=251.6^\circ}[/tex]
pls answer. the question is at the photo
Answer:
a. -17
b. 193
Step-by-step explanation:
I'm assuming that we are only using the regular operations add, sub, div, and mult.
smallest number is just 1-8-4-6 = -17
largest number is 8*4*6+1 = 193, this is what I think
URGENT!!! ITS DUE IN 5 MINUTES!!!!
Answer:
d
Step-by-step explanation:
I'll edit my response to tell you why later. it seems like you need this answer now.
Answer:
A?
Step-by-step explanation:
I'm pretty sure thats the answer! I,m currently learning that in class so I might be wrong!
help plz will bark brailiest help plzzzzzz
Answer:
4 strips
Step-by-step explanation:
There are one hundred centimeters in one meter, so you multiply 2 and 100.
2*100=200
And then you divide by 50, since the strips are 50cm long
200/50=4
4 fifty cm strips
Solve with ZPP
Equation
Solution Set
Correct?
(x-4)(x - 5) = 0
{,}
Not yet
(x + 1)(x + 7) = 0
{:}
Not yet
x(7x – 5)=0
{,}
Not yet
(3x + 1) (5x - 2) = 0
{,}
Not yet
Answer:
Step-by-step explanation:
{4, 5}
{ - 1, - 7 }
{ 0, 5/7 }
{ - 1/3 , 2/5 }
Which identity is the result of using the pythagorean theorem to show that a triangle with side lengths x^2 - 1, 2x, and x^2 + 1 is a right triangle?
A. (x^2 - 1)^2 + (2x)^2 = -(x^2 + 1)^2
B. -(x^2 -1)^2 + (2x)^2 = (x^2 +1)^2
C. (x^2-1)^2 + (2x)^2 = (x^2 +1)^2
D. (x^2 - 1)^2 - (2x)^2 = (x^2 + 1)^2
9514 1404 393
Answer:
C. (x^2-1)^2 + (2x)^2 = (x^2 +1)^2
Step-by-step explanation:
Inexplicably, three of the four answer choices have minus signs in them. Those are all incorrect. The appropriate choice is ...
C. (x^2-1)^2 + (2x)^2 = (x^2 +1)^2
__
Expanded, this is ...
x^4 -2x^2 +1 +4x^2 = x^4 +2x^2 +1 . . . . the desired identity
Answer:
C. (x^2-1)^2 + (2x)^2 = (x^2 +1)^2
Step-by-step explanation:
A line passes through the point (10,-3) and has a slope of -1/2. Write an equation in point-slope form for this line.
Answer:
y+3 = [tex]\frac{-1}{2}[/tex] (x-10)
Step-by-step explanation:
How would you graph the solution set of x + 4 > -9?
Answer:
x>-5
Step-by-step explanation:
-9 - -4 =-5
x>-5
↝ Graph from Number Line ↝
x + 4 > -9
x + 4 + 9 > 0
x + 13 > 0
x > -13
↝ Then we plot a dot/small circle (open dot) at -13 then straight draw a line from -13 to the right. (Shown in the picture)
Lakita wants to go to trade school and study electronics for a two-year program. Her tuition and books will cost about $5,500 per year. She will also spend about $100 a month commuting from her parents' house to school. How much will her education cost her in total?
Answer:
$13,400
Step-by-step explanation:
We will first have to take account of the commuting cost, years at school, and total cost of tuition and books
It would cost $5,500 per year, she is studying at the school for 2 years, we will multiply 5,500 by 2
$5,500 * 2
= $11,000
The cost of commuting per month will be multiplied by 12 to represent a year and another 2 for two years
$100 * 12 * 2
= $2400
We all these together for the total cost of her education
$11,000 + $2,400
= $13,400