Answer:
cos(30) = (sqrt(3)/2) * cos(0)
Step-by-step explanation:
cos(0) = 1
cos(30) = sqrt(3)/2
Thus, we can write that:
cos(30) = (sqrt(3)/2) * cos(0)
one number is 6 more than the other number. also, 7 times the smaller number is equal to 6 times the larger number. find the two numbers.
Answer:
x = 36; y = 42
Step-by-step explanation:
x+6 = y
7x = 6y
7x = 6(x+6)
7x = 6x+36
-6x -6x
x = 36
_________
y = 36+6
y = 42
_________
The associative property is shown by the following: 5(3+1)=5(3) + 5 (1)
Which of the numbers below is greater than zero? Select all that apply.
A)0.8
B)4.5
C)14
D)−2.25
E)−0.5
Wooden flooring costs £35 per square metre. The floor is then edged with a narrow wooden strip which costs £4 per metre.
How much does it cost for a 6m by 4m room, including the edging?
Answer:
£920
Step-by-step explanation:
We need to find the area of floor to find the cost of the flooring, and then we need to find the perimeter of the floor to find the cost of the edging.
A = LW = 6 m × 4 m = 24 m²
Cost of flooring: 24 m² × £35/m² = £840
P = 2(L + W) = 2(6 m + 4m) = 2(10m) = 20 m
Cost of edging: 20 m × £4/m = £80
Total cost:
£840 + £80 = £920
(-10)-[9+(-3)]×2²÷(-8)
Answer:
-7
Step-by-step explanation:
A normal conversation is about 10^7 times the threshold of hearing. Compute the intensity level (in decibels) for a normal conversation.
Answer:
70
Step-by-step explanation:
The sound of a normal conversation 3 is times intense than the sound of a computer.
What is sound intensity?It is the energy flow per unit area. It refers to the product of pressure and velocity of particles in a fluid medium, which is equivalent to the power received per unit area.
Let us say the sound intensity of the quietest noise a person can hear is 60 decibels. So the sound intensity of computer is 20 decibels.
Sound intensity of a normal conversation/ computer sound, will be:
[tex]SI=\frac{60}{20} =3[/tex]
Therefore, the sound of a normal conversation 3 is times intense than the sound of a computer.
See more about sound intensity at brainly.com/question/17062836
Find the equation (in terms of x ) of the line through the points (-1,4) and (2,-5)
Answer:
( 1 , -3 ) for every +1 on the x line you go -3 on the y I hope this is what you need
What is the answer to this equation
Answer:
-34/45
Step-by-step explanation:
first step you wanna do is Multiply the numbers -1/5- 1 (-2/3)- (5/6)= -1/5 and -5/9 then subtract those two fractions and you get -34/45 since both of the fractions were negative the answer results as a negative aswell
what is 3/5 x 7/9 equivalent to 3/5 divided by 7/9
Step-by-step explanation:
It's 27/35, so 27/1 * 1/35
Answer:
0.31 (correct me if I'm wrong)
Step-by-step explanation:
3/5*7/9=0.463/5 divided by 7/9=0.770.77-0.46=0.31Please help what is 399/20 simplified
Answer:
19 19/20 in fraction
19.95 as a decimal
Step-by-step explanation:
Answer:
19 and 19/20
Step-by-step explanation:
The bar in a fraction stands for dividing
so you divide 399 by 20 which is 19 and 19 remainder
you turn the remainder into a fraction and the number into a whole number
PLEASE HELP ME WITH THIS QUESTION PLEASE
and show your steps please I really need help with this question please help please
Answer:
a. 2.2 m
b. 8 m
Step-by-step explanation:
4) a. Sin 32 = x/4
= (sin 32)(4) = x
b. Cos 65 = 4.5/x
x = 4.5/Cos 65
Triangles PQR and XYZ are similar. What is the length of XZ?
welp. this is 9marks question
Answer:
4
Step-by-step
- 4. What is the roster form of the set K = {x/x are odd numbers from 2 to 8} ? A. H = {2, 4, 6, 8} C. H = {3, 4, 5, 6, 7} B. H = {3, 5, 7} D. H = {2,8} 1 2 3 ? Which method for theiva CIV & CLUJ -
Explanation:
We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.
Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.
please I need the answer right now.
Describe the error Sadie made, and explain how to find the correct answer.
Answer:
did not simplify correctly
Step-by-step explanation:
just cuz
The Davis's drank 9 gal 1 qt of milk last month and 7 gal 2 qt this month. How much milk is that?
9 gallons + 7 gallons = 16 gallons
1 qt + 2qt = 3 qts
Total = 16 gallons and 3 qts.
Find the equation of the linear function represented by the table
Y 2 7 12 17
x 1 2 3 4
Answer:
Step-by-step explanation:
(1, 2) (2, 7)
(7-2)/(2 - 1) = 5/1= 5
y - 2 = 5(x - 1)
y - 2 = 5x - 5
y = 5x - 3
If F(x) = 12x/(3 + x2), find F '(3) and use it to find an equation of the tangent line to the curve y = 12x/(3 + x2) at the point (3, 3).
F '(3) =
y(x) =
Answer:
f=12
yx=88
Step-by-step explanation:
Pythagorean theorem digital escape can you find the length and area and type the correct code?
The length of TU in the right triangle is 156.15 m.
The area of the rectangle is 12335.85 m²
The length of GH in the right triangle is 182.33 m
The area of the triangle is 8934.17 m²
Right angle triangleRight angle triangle are triangle that has one of its angle as 90 degrees. The sides of the triangle can be found using Pythagoras theorem. Therefore, using Pythagoras theorem,
TU² = 175² - 79²
TU² = 30625 - 6241
TU² = 24384
TU = √24384
TU = 156.153770368
TU = 156.15 m
area of rectangle = lw
area of rectangle = 156.15 × 79
area of rectangle = 12335.85 m²
GH² = 207² - 98²
GH² = 42849 - 9604
GH² = 33245
GH = √33245
GH = 182.33211456
GH = 182.33 m
Area of the triangle = 1 / 2 bh
Area of the triangle = 1 / 2 × 98 × 182.33
Area of the triangle = 17868.34 / 2
Area of the triangle = 8934.17 m²
learn more on right triangle here: https://brainly.com/question/22897958
en la feria del condado, la calabaza con la cinta roja pesaba 108 libras menos que la calabaza con la cinta azul. cuanto pesaba la calabaza con la cinta azul?
Answer:
sorry i dont know
Step-by-step explanation:
I NEED A 100% ACCURATE ANSWER FOR THIS ASAP NO LINKS !!!
Solve the following: 7y−20=3y+12
1: y= 3.2
2: y=8
2: y= -8
4: y= 28
Answer:
I think its y=8
Step-by-step explanation:
7y-20=3y+12
7y-3y=12+20
4y=32
y=32/4
y=8
Graph the line whose x-intercept is -5 and whose y-intercept is -9.
Here is how you're line should look!
PLS HELO THANK YOUUUUU
Answer:
divide 500 by 125.
You get 4x = 568
Answer is 142
Happy Learning
Answer:
142
Step-by-step explanation:
What does it mean to “solve” the following equation for y.
simplify (3x³)⁴.......
Answer:
(3x)¹²
Step-by-step explanation:
(3x³)⁴ can be simplified into (3x)¹²
The simplified value of the given expression is 3x¹²
What is simplification?Simplification is the process of replacing a mathematical expression by an equivalent one, that is simpler, usually shorter.
Given that, an expression (3x³)⁴
Using the identity = (xᵃ)ᵇ = xᵃᵇ
(3x³)⁴ = (3x)³ˣ⁴ = 3x¹²
Hence, the simplified value of the given expression is 3x¹²
Learn more about Simplification , click;
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please help with question.
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The given pair of lines are parallel to one another ~
The solution is in attachment
Answer:
neither
Step-by-step explanation:
Taco Tuesday math paper restraint
Simplify and show work I need help
Answer: 6x^4-2x^2x5x+2x^2
Step-by-step explanation:
(12c(5th power)) x 3c(4th power)
How do we simplify this equation?
Answer:
You can combine the powers and bases to get 36c^9
Step-by-step explanation:
12*3=36
Rule of exponents= n^m*m^n is (n*m)^m+n
Hope this helps.