Answer:
ku=a
Step-by-step explanation:
We are given
[tex]u = \frac{a}{k} [/tex]
and we need to solve for a. First let multiply k by both sides to isolate a.
[tex]ku = a[/tex]
Help pls, I need Help :D
Check all that apply
Answer:
all of them are REAL numbers
1. is also RATIONAL
2. is also IRRATIONAL
3. is also IRRATIONAL
4. is also NATURAL, WHOLE, INTEGER and RATIONAL
5. is also INTEGER and RATIONAL
6. incorrect, because integer is just the whole numbers extended by their additive counterparts (the negative natural numbers). in other words, their absolute values are whole numbers. 5.5 as well as -5.5 are not fitting that criteria.
7. incorrect, because this pattern does not fit the definition of a radical number, where the number eventually begins to repeat the same finite sequence of digits over and over. in this example the pattern is not based on a finite sequence of digits.
A.0.16, 0.10, 0.07, -2.65, -1.43
B. -2.65, -1.3, 0.16, 0.10, 0.07
C.0.16, 0.10, 0.07, -1.43, -2.65
D.-2.65, -1.43, 0.07, 0.10, 0.16
Answer:
Step-by-step explanation:
The greatest value is 0.16. The least value is - 2.65
The least value (mathematically) is - 2.65
So C is the right answer.
X
50
50
X =
degrees
Please help with this problem I am going crazy
Answer:
x=80°
Step-by-step explanation:
Triangles always add up to 180°.
As you have 2 angles, you would have to add them together and then take it away from 180° to get your answer.
50+50=100°
180-100=80°
Hope this helps :)
Answer:
x = 80°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the given angles from 180 for x
x = 180° - (50 + 50)° = 180° - 100° = 80°
Prove that:
Sin^2A+Sin^2B.Cos2A=Sin^2B+Sin^2A.Cos2B
Answer:
See Below.
Step-by-step explanation:
We want to prove that:
[tex]\displaystyle \sin^2 A + \sin^2 B \cdot \cos 2A = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]
Recall that double-angle identity for cosine:
[tex]\displaystyle \begin{aligned} \cos 2x &= \cos^2x - \sin^2 x \\ &= 2\cos^2x -1 \\ &= 1 - 2\sin^2 x\end{aligned}[/tex]
Substitute cos(2A) for its third form:
[tex]\displaystyle \sin^2 A + \sin^2 B \cdot \left(1 - 2\sin^2 A\right) = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]
Distribute:
[tex]\displaystyle \sin^2 A + \sin^2 B - 2\sin^2B \sin^2A = \sin^2 B + \sin^2 A \cdot \cos 2B[/tex]
Rewrite:
[tex]\displaystyle \sin^2 B + \left(\sin^2 A - 2\sin^2 B\sin^2 A\right)[/tex]
Factor:
[tex]\displaystyle \sin^2 B + \sin^2A\left(1 - 2\sin^2 B\right) = \sin^2 B + \sin^2A\cdot \cos 2B[/tex]
Double-Angle Identity for cosine:
[tex]\displaystyle \sin^2 B + \sin^2 A \cdot \cos 2B \stackrel{\checkmark}{=} \sin ^2 B + \sin^2 A\cdot \cos 2B[/tex]
Hence proven.
Amazon is sold at rupees 99000 after 10% discount and 10% bat on the Marked price find the discount amount and vat amount
Answer:
Here,
SP with VAT = Rs. 99000
Discount = 10%
VAT = 10%
Discount Amount =?
VAT Amount = ?
We know,
SP = "100" /"100 + v% " × SP with VAT
= "100" /"100 + 10 " × 99000
= "100" /"110 " × 99000
= Rs. 90000 ∴ VAT Amount = SP with VAT – SP
= Rs. 99000 – 90000
= Rs. 9000 Again, MP = "100" /"100 – d% " × SP
= "100" /"100 – 10 " × 90000
= "100" /"90" × 90000
= Rs. 100000
∴ Discount Amount = MP – SP
= Rs. 100000 – 90000
= Rs. 10000
Step-by-step explanation:
Here is the list of all formulas on MP, Discount, SP, and VAT.
1. Discount Amount = Discount % of MP
2. Discount % = (Discount Amount)/MP ×100%
3. SP = MP – Discount Amount
4. SP = (100 - d%)/(100 ) × MP
5. MP = 100/(100 - d% ) × SP
6. VAT amount = VAT percent of SP
7. VAT percent = (VAT Amount)/SP ×100%
8. SP with VAT = SP + VAT amount
9. SP with VAT = (100 + v%)/(100 ) × SP
10. SP = 100/(100 + v% ) × SP with VAT
11. MP = (100 × 100)/((100 - d%)(100 + v%)) × SP with VAT
12. SP with VAT = ((100 - d%)(100 + v%))/(100 × 100) × MP
a car travels at a constant speed of 20 meters per second. work out the distance travelled in meters by the car after:
a)4 seconds b)3 mins c)2 hours
***not multiple choice
Distance = Speed×Time
Speed = 20m/s
a) = 20×4
= 80m
b) 3 mins = 180s
= 20×180
= 3,600m
c) 2 hours = 7200s
= 2 × 7200
= 14,400m
Must click thanks and mark brainliest
I need help on my math.
1:4 of 2,500 what is it???
Answer:
40% of 2500=
100
40
×2500
=1000
Step-by-step explanation:
Write the calculation exactly as you say it:
help me pleaseeeeeeeee
how to arrange four 3's to produce 33?
Answer:
[tex]3^{3} + 3 + 3 = 33[/tex]
Step-by-step explanation:
1. Find the measure of side QM.
Solve for v: w = v/r
Answer:
v = wr
Step-by-step explanation:
[tex](r)w=\frac{v}{r}(r)\\wr=v[/tex]
Answer:
v = w/r
Step-by-step explanation:
w = v/r
v = w/r
חן
d
60°
30°
e
The product of sin 30° and sin 60° is same as the product of
and
Answer:
Step-by-step explanation:
This is a fascinating question. It turns out to be true because of the relationship between a 30 degree angle and a 60 degree angle
The answer is that the product of sin30*sin60 = cos(30)*cos(60). This happens because sin(60) = cos(90-60) = cos(30)
Other angles will do the same thing sin36 * sin54 = cos(54)*cos(36)
Please help me answer this
Answer:
77Step-by-step explanation:
Use Pythagorean to solve this:
FH² = FG² - GH²GH² = EG² - EH²Substitute values:
FH² = 85² - (45² - 27²)FH² = 5929FH = √5929FH = 77Answer:
FH = 77
Step-by-step explanation:
Using all the side lengths given, we can create a pythagorean like equation with all three values:
= -45² + 27² + 85²
= -2,025 + 729 + 7,225
= 5929
= √5929
= 77
Best of Luck!
31. Which choice describes the value of m when -5(m + 1) = 23?
А
B.
m 2-3
ms-
6 m2
D.ms-
Answer:
The correct choice is Option A. m ≥ -28/5
Step-by-step explanation:
i will mark brainliest!!!
Other answers: C. y=25x
D. y=25x+8.34
Answer:
Omg why are you soo beautiful? I love it
Analyze the diagram below and complete the instructions that follow.
10
6
B.
'C С
8
Find sin ZA
A 3
5
B. 4
C 1
Answer:4
Step-by-step explanation:just had this
For the Parabola y = (x - 7)^2 – 3. the equation for the Line Of Symmetry is
Answer:
x+=(y)=x
Step-by-step explanation:
Answer:
x = 7
Step-by-step explanation:
y = (x - 7)^2 – 3
This equation is in vertex form
y = a(x-h)^2 +k where (h,k) is the vertex. For a vertical parabola, the axis of symmetry is x=h
x = 7
Determine what type of model best fits the given situation: A retirement account that is expected to
grow by $1,000 per year.
Answer:
Step-by-step explanation:
If the account grows steadily, this is a linear representation, where the constant, steady growth translates to the slope of a line.
Tommy types 54 words per minute, with an average of 3 mistakes. How many mistakes would you expect Tommy to make if he typed 300 words?
Answer:
around 17 mistakes
Step-by-step explanation:
We can write a ratio to solve
54 words 300 words
------------------ = -------------------
3 mistakes x mistakes
Using cross products
54x = 3*300
54x = 900
Divide by 54
54x/54 = 900/54
x =50/3
x = 16.66666666(repeating)
around 17 mistakes
X = mistakes in 300 words
54/3 = 300/X
54X = 3 x 300
X = 900/ 54
X = about 17 words, since 16 and 2/3 rounded to the nearest tenth is 17
Find the sentence distance between the points (-2,2) and (-1,1). Round to two decimal places if necessary.
Someone help me
Answer:
1.41
Step-by-step explanation:
Coordinates of point 1 are:
(-2,2)
Coordinates of point 2 are:
(-1,1)
[tex]Distance \: between \: two \: points \\ = \sqrt{ {(x_{2} - x_{1})}^{2} + {(y_{2} - y_{1})}^{2} } \\ = \sqrt{ { (- 1 - - 2)}^{2} + {(1 - 2)}^{2} } \\ = \sqrt{ { (1)}^{2} + {( - 1)}^{2} } \\ = \sqrt{ 1 + 1 } \\ = \sqrt{2} \\ = 1.41 [/tex]
[tex]5^{-3}[/tex] rewrite as an equivalent expression
Answer:
the equivalent equation of
[tex]5^{-3}[/tex]=[tex]\frac{1}{5^{3}}=\frac{1}{125}[/tex]
If m∠A = m∠B and m∠A + m∠C = m∠D, then
m∠B + m∠C = m∠D.
Answer:
True. The statement is also equivalent to: If m<B + m<C does not equal m<D, then m<A does not equal m<B and m<A + m<C is not equal to m<D.
For the Parabolay = (x – 7)2 – 3. the equation for the Line Of Symmetry is
a) x
b) y
c) -7
d) 3
e) -3
Answer:
x = 7
Step-by-step explanation:
y = (x – 7)^2 – 3
This equation is in vertex form
y = a(x-h)^2 +k
where (h,k) is the vertex
For a vertical parabola, the line of symmetry is x=h
x = 7
there are 25 children in the class 3/5 of the children in the class are boys. how many girls are their?
PLZZZ
Answer:
10 girls
Step-by-step explanation:
If 3/5 of the class consists of boys, (5/5 - 3/5 = 2/5) : 2/5 are girls
3/5 x 25 = 15
2/5 (girls) = 25 - 15
Therefore, 10 girls in total
A grocer purchased 200 eggs at rs.9each. 20 of them were broken and he/she sold the rest at rs.9.50 each.Find his /her profit or loss percent.
Answer:
5.55%
Step-by-step explanation:
Hope this helped you
If this helped you, plz mark me as brainiliest
Sorry for bad handwriting.
Thank you
On a 100 cm measuring stick, marks are made at 19, N, and 99 cm, from left to right. The distance between the marks at N and 99 cm is three times the distance between the marks at N and 19 cm. What number is N?
HELP IM STUCK
Answer:
N is 39
Step-by-step explanation:
The distance between 99 and 19 is:
99 - 19 = 80
So, you can split the stick in 4 parts, one part between 19 and N, and 3 times this same part you'll have the distance between N and 99
So 80/4 = 20
19 + 20 = 39
N is 39
r/3 + 5 < 8
please help
Answer:
r<9
Step-by-step explanation:
r/3 + 5 < 8
Subtract 5 from each side
r/3 + 5-5 < 8-5
r/3 < 3
Multiply each side by 3
r/3 *3 <3*3
r<9
What is 51809 rounded to 1,2 and 3 significant figures?
PLSS HELP
Answer:
1 significant figure: 50,000 2 significant figures: 52,000 3 significant figures: 51,800
Step-by-step explanation:
FIrst, a significant figure is basically a non-zero digit (at least in your case). Basically, the 1 significant figure in your case would be to the nearest 10 thousand, which would be 50,000. Now, for 2 significant figures. This would be the nearest thousand, 52,000. Finally, 3 significant figures is to the nearest hundred, aka 51,800. Note: If you find a problem like this again 0 in between two digits that aren't 0 is a significant digit, aka the 0 in 51809. Hope this helped!
